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| author | Paul Phillips <paulp@improving.org> | 2012-09-14 12:10:57 -0700 |
|---|---|---|
| committer | Paul Phillips <paulp@improving.org> | 2012-09-15 08:01:19 -0700 |
| commit | 3262f7072b4060b1058acb6d772eaa61d4dec1d4 (patch) | |
| tree | 8a4e0f285145d1f429096ad8dc08b90e846b5c38 | |
| parent | 930c85d6c96507d798d1847ea078eebf93dc0acb (diff) | |
| parent | 83c1b1062957e50e5336c1b3409e54e0a5cce275 (diff) | |
| download | scala-3262f7072b4060b1058acb6d772eaa61d4dec1d4.tar.gz scala-3262f7072b4060b1058acb6d772eaa61d4dec1d4.tar.bz2 scala-3262f7072b4060b1058acb6d772eaa61d4dec1d4.zip | |
Merge remote-tracking branch 'origin/2.10.x' into merge-210
* origin/2.10.x: (68 commits)
Eliminate breaking relative names in source.
"Hot fix" for broken build.
Fix SI-4813 - Clone doesn't work on LinkedList.
Made 'def clone()' consistent with parens everywhere.
accommodates pull request feedback
SI-6310 redeploys the starr
SI-6310 AbsTypeTag => WeakTypeTag
SI-6323 outlaws free types from TypeTag
SI-6323 prohibits reflection against free types
improvements for reification of free symbols
removes build.newFreeExistential
SI-6359 Deep prohibition of templates in value class
Fixes SI-6259. Unable to use typeOf in super call of top-level object.
Fixes binary repo push for new typesafe repo layouts.
Better error message for pattern arity errors.
Rescued TreeBuilder from the parser.
Pending test for SI-3943
Test case for a bug fixed in M7.
Fix for SI-6367, exponential time in inference.
SI-6306 Remove incorrect eta-expansion optimization in Uncurry
...
Conflicts:
src/compiler/scala/tools/nsc/transform/AddInterfaces.scala
src/compiler/scala/tools/nsc/transform/SpecializeTypes.scala
612 files changed, 4090 insertions, 1995 deletions
diff --git a/lib/scala-compiler-src.jar.desired.sha1 b/lib/scala-compiler-src.jar.desired.sha1 index bfbcc5a7a3..057d6b26e6 100644 --- a/lib/scala-compiler-src.jar.desired.sha1 +++ b/lib/scala-compiler-src.jar.desired.sha1 @@ -1 +1 @@ -7bad3afb569e2c57d1b299b61e0d3c0fa1b1d8d9 ?scala-compiler-src.jar +acfbbb4117b222b488226b4a89d5e732eb59f19c ?scala-compiler-src.jar diff --git a/lib/scala-compiler.jar.desired.sha1 b/lib/scala-compiler.jar.desired.sha1 index ef2063bc3d..d4cad8f868 100644 --- a/lib/scala-compiler.jar.desired.sha1 +++ b/lib/scala-compiler.jar.desired.sha1 @@ -1 +1 @@ -5f73d19a6ec70f67e6d8a2f08cde3551e51b2b79 ?scala-compiler.jar +e0c0f2326622f535aa86978dee74dc7ac86e401b ?scala-compiler.jar diff --git a/lib/scala-library-src.jar.desired.sha1 b/lib/scala-library-src.jar.desired.sha1 index 0709415f43..c8515e61de 100644 --- a/lib/scala-library-src.jar.desired.sha1 +++ b/lib/scala-library-src.jar.desired.sha1 @@ -1 +1 @@ -26c6c1cf7be57afa519ec641fb78e16a771a534a ?scala-library-src.jar +52b0ea12b0fe6c2150434fdda3909c2aa927a325 ?scala-library-src.jar diff --git a/lib/scala-library.jar.desired.sha1 b/lib/scala-library.jar.desired.sha1 index edc3614c6d..323d3441f8 100644 --- a/lib/scala-library.jar.desired.sha1 +++ b/lib/scala-library.jar.desired.sha1 @@ -1 +1 @@ -4f14def979133788dd91117a203a40e35cd24528 ?scala-library.jar +7a35fcd17b39ea1e13cc8c919e1e556eed81e799 ?scala-library.jar diff --git a/lib/scala-reflect-src.jar.desired.sha1 b/lib/scala-reflect-src.jar.desired.sha1 index a7a9eddd93..839d77da3a 100644 --- a/lib/scala-reflect-src.jar.desired.sha1 +++ b/lib/scala-reflect-src.jar.desired.sha1 @@ -1 +1 @@ -60c61467bc992752bf81bc0ca783a9d6a72db588 ?scala-reflect-src.jar +fc25fdfd30959e77b85c0c7917005a83890f94a2 ?scala-reflect-src.jar diff --git a/lib/scala-reflect.jar.desired.sha1 b/lib/scala-reflect.jar.desired.sha1 index a1732595b8..88ea78c303 100644 --- a/lib/scala-reflect.jar.desired.sha1 +++ b/lib/scala-reflect.jar.desired.sha1 @@ -1 +1 @@ -b3764f8b2f7719d1fbfaf9767a3a68f6ef7ad876 ?scala-reflect.jar +5aca838ee9d82be45fb476c1722f71842d5d528e ?scala-reflect.jar diff --git a/src/actors-migration/scala/actors/Pattern.scala b/src/actors-migration/scala/actors/Pattern.scala index 26e9d1bb64..fa2db79152 100644 --- a/src/actors-migration/scala/actors/Pattern.scala +++ b/src/actors-migration/scala/actors/Pattern.scala @@ -1,7 +1,7 @@ package scala.actors import scala.concurrent.util.Duration -import language.implicitConversions +import scala.language.implicitConversions object pattern { @@ -23,4 +23,4 @@ class AskableActorRef(val ar: ActorRef) extends ActorRef { def forward(message: Any) = ar.forward(message) private[actors] def localActor: AbstractActor = ar.localActor -}
\ No newline at end of file +} diff --git a/src/actors-migration/scala/actors/StashingActor.scala b/src/actors-migration/scala/actors/StashingActor.scala index 8f96e1b002..29f370a3e2 100644 --- a/src/actors-migration/scala/actors/StashingActor.scala +++ b/src/actors-migration/scala/actors/StashingActor.scala @@ -3,7 +3,7 @@ package scala.actors import scala.collection._ import scala.concurrent.util.Duration import java.util.concurrent.TimeUnit -import language.implicitConversions +import scala.language.implicitConversions object StashingActor extends Combinators { implicit def mkBody[A](body: => A) = new InternalActor.Body[A] { diff --git a/src/actors-migration/scala/actors/Timeout.scala b/src/actors-migration/scala/actors/Timeout.scala index 7e400ab140..5540d2880e 100644 --- a/src/actors-migration/scala/actors/Timeout.scala +++ b/src/actors-migration/scala/actors/Timeout.scala @@ -10,7 +10,7 @@ package scala.actors import scala.concurrent.util.Duration import java.util.concurrent.TimeUnit -import language.implicitConversions +import scala.language.implicitConversions case class Timeout(duration: Duration) { def this(timeout: Long) = this(Duration(timeout, TimeUnit.MILLISECONDS)) diff --git a/src/actors/scala/actors/AbstractActor.scala b/src/actors/scala/actors/AbstractActor.scala index dec91859bb..fd11b9a0a8 100644 --- a/src/actors/scala/actors/AbstractActor.scala +++ b/src/actors/scala/actors/AbstractActor.scala @@ -8,7 +8,7 @@ package scala.actors -import language.higherKinds +import scala.language.higherKinds /** * @author Philipp Haller diff --git a/src/actors/scala/actors/Actor.scala b/src/actors/scala/actors/Actor.scala index 0b1e7fb1e9..8869165062 100644 --- a/src/actors/scala/actors/Actor.scala +++ b/src/actors/scala/actors/Actor.scala @@ -10,7 +10,7 @@ package scala.actors import scala.util.control.ControlThrowable import java.util.{Timer, TimerTask} -import language.implicitConversions +import scala.language.implicitConversions /** * Provides functions for the definition of actors, as well as actor diff --git a/src/actors/scala/actors/CanReply.scala b/src/actors/scala/actors/CanReply.scala index 9bf0022247..92ab23dae1 100644 --- a/src/actors/scala/actors/CanReply.scala +++ b/src/actors/scala/actors/CanReply.scala @@ -8,7 +8,7 @@ package scala.actors -import language.higherKinds +import scala.language.higherKinds /** * Defines result-bearing message send operations. diff --git a/src/actors/scala/actors/Combinators.scala b/src/actors/scala/actors/Combinators.scala index dd704436fc..aef01b67a8 100644 --- a/src/actors/scala/actors/Combinators.scala +++ b/src/actors/scala/actors/Combinators.scala @@ -10,7 +10,7 @@ package scala.actors -import language.implicitConversions +import scala.language.implicitConversions private[actors] trait Combinators { diff --git a/src/actors/scala/actors/Future.scala b/src/actors/scala/actors/Future.scala index 735c13190b..0198e95ae1 100644 --- a/src/actors/scala/actors/Future.scala +++ b/src/actors/scala/actors/Future.scala @@ -174,7 +174,7 @@ object Futures { * or timeout + `System.currentTimeMillis()` is negative. */ def awaitAll(timeout: Long, fts: Future[Any]*): List[Option[Any]] = { - var resultsMap: collection.mutable.Map[Int, Option[Any]] = new collection.mutable.HashMap[Int, Option[Any]] + var resultsMap: scala.collection.mutable.Map[Int, Option[Any]] = new collection.mutable.HashMap[Int, Option[Any]] var cnt = 0 val mappedFts = fts.map(ft => diff --git a/src/actors/scala/actors/Reactor.scala b/src/actors/scala/actors/Reactor.scala index c962bb9d3d..11c910e577 100644 --- a/src/actors/scala/actors/Reactor.scala +++ b/src/actors/scala/actors/Reactor.scala @@ -12,7 +12,7 @@ package scala.actors import scala.actors.scheduler.{DelegatingScheduler, ExecutorScheduler, ForkJoinScheduler, ThreadPoolConfig} import java.util.concurrent.{ThreadPoolExecutor, TimeUnit, LinkedBlockingQueue} -import language.implicitConversions +import scala.language.implicitConversions private[actors] object Reactor { diff --git a/src/actors/scala/actors/scheduler/ThreadPoolConfig.scala b/src/actors/scala/actors/scheduler/ThreadPoolConfig.scala index a7bf8ec2ba..59f4afccc4 100644 --- a/src/actors/scala/actors/scheduler/ThreadPoolConfig.scala +++ b/src/actors/scala/actors/scheduler/ThreadPoolConfig.scala @@ -10,7 +10,7 @@ package scala.actors package scheduler -import util.Properties.{ javaVersion, javaVmVendor, isJavaAtLeast, propIsSetTo, propOrNone } +import scala.util.Properties.{ javaVersion, javaVmVendor, isJavaAtLeast, propIsSetTo, propOrNone } /** * @author Erik Engbrecht diff --git a/src/build/InnerObjectTestGen.scala b/src/build/InnerObjectTestGen.scala index 5945bc17c7..b66112609c 100644 --- a/src/build/InnerObjectTestGen.scala +++ b/src/build/InnerObjectTestGen.scala @@ -1,4 +1,4 @@ -import collection.mutable +import scala.collection.mutable /** All contexts where objects can be embedded. */ object Contexts extends Enumeration { diff --git a/src/build/genprod.scala b/src/build/genprod.scala index 83a65e6876..b9511c1ad2 100644 --- a/src/build/genprod.scala +++ b/src/build/genprod.scala @@ -6,7 +6,7 @@ ** |/ ** \* */ -import language.postfixOps +import scala.language.postfixOps /** This program generates the ProductN, TupleN, FunctionN, * and AbstractFunctionN, where 0 <= N <= MAX_ARITY. diff --git a/src/compiler/scala/reflect/macros/runtime/Aliases.scala b/src/compiler/scala/reflect/macros/runtime/Aliases.scala index 5e15b61dbd..30e72997f7 100644 --- a/src/compiler/scala/reflect/macros/runtime/Aliases.scala +++ b/src/compiler/scala/reflect/macros/runtime/Aliases.scala @@ -17,12 +17,12 @@ trait Aliases { override type Expr[+T] = universe.Expr[T] override val Expr = universe.Expr - override type AbsTypeTag[T] = universe.AbsTypeTag[T] + override type WeakTypeTag[T] = universe.WeakTypeTag[T] override type TypeTag[T] = universe.TypeTag[T] - override val AbsTypeTag = universe.AbsTypeTag + override val WeakTypeTag = universe.WeakTypeTag override val TypeTag = universe.TypeTag - override def absTypeTag[T](implicit attag: AbsTypeTag[T]) = attag + override def weakTypeTag[T](implicit attag: WeakTypeTag[T]) = attag override def typeTag[T](implicit ttag: TypeTag[T]) = ttag - override def absTypeOf[T](implicit attag: AbsTypeTag[T]): Type = attag.tpe + override def weakTypeOf[T](implicit attag: WeakTypeTag[T]): Type = attag.tpe override def typeOf[T](implicit ttag: TypeTag[T]): Type = ttag.tpe }
\ No newline at end of file diff --git a/src/compiler/scala/reflect/macros/runtime/Exprs.scala b/src/compiler/scala/reflect/macros/runtime/Exprs.scala index 4217a6a404..ebf8fa2b96 100644 --- a/src/compiler/scala/reflect/macros/runtime/Exprs.scala +++ b/src/compiler/scala/reflect/macros/runtime/Exprs.scala @@ -4,5 +4,5 @@ package runtime trait Exprs { self: Context => - def Expr[T: AbsTypeTag](tree: Tree): Expr[T] = universe.Expr[T](mirror, universe.FixedMirrorTreeCreator(mirror, tree)) + def Expr[T: WeakTypeTag](tree: Tree): Expr[T] = universe.Expr[T](mirror, universe.FixedMirrorTreeCreator(mirror, tree)) } diff --git a/src/compiler/scala/reflect/macros/runtime/Infrastructure.scala b/src/compiler/scala/reflect/macros/runtime/Infrastructure.scala index 0a8a8d015d..77ac8c6581 100644 --- a/src/compiler/scala/reflect/macros/runtime/Infrastructure.scala +++ b/src/compiler/scala/reflect/macros/runtime/Infrastructure.scala @@ -34,7 +34,7 @@ trait Infrastructure { val currentMacro: Symbol = expandee.symbol - val globalCache: collection.mutable.Map[Any, Any] = universe.analyzer.globalMacroCache + val globalCache: scala.collection.mutable.Map[Any, Any] = universe.analyzer.globalMacroCache - val cache: collection.mutable.Map[Any, Any] = universe.analyzer.perRunMacroCache.getOrElseUpdate(currentMacro, collection.mutable.Map[Any, Any]()) -}
\ No newline at end of file + val cache: scala.collection.mutable.Map[Any, Any] = universe.analyzer.perRunMacroCache.getOrElseUpdate(currentMacro, collection.mutable.Map[Any, Any]()) +} diff --git a/src/compiler/scala/reflect/macros/runtime/Parsers.scala b/src/compiler/scala/reflect/macros/runtime/Parsers.scala index 6d89b71f39..e4acf104e3 100644 --- a/src/compiler/scala/reflect/macros/runtime/Parsers.scala +++ b/src/compiler/scala/reflect/macros/runtime/Parsers.scala @@ -1,7 +1,7 @@ package scala.reflect.macros package runtime -import language.existentials +import scala.language.existentials import scala.tools.reflect.ToolBox import scala.tools.reflect.ToolBoxError @@ -22,4 +22,4 @@ trait Parsers { case class ParseError(val pos: Position, val msg: String) extends Throwable(msg) object ParseError extends ParseErrorExtractor -}
\ No newline at end of file +} diff --git a/src/compiler/scala/reflect/macros/runtime/TypeTags.scala b/src/compiler/scala/reflect/macros/runtime/TypeTags.scala index 2bc2fe6384..19b60159de 100644 --- a/src/compiler/scala/reflect/macros/runtime/TypeTags.scala +++ b/src/compiler/scala/reflect/macros/runtime/TypeTags.scala @@ -4,6 +4,6 @@ package runtime trait TypeTags { self: Context => - def AbsTypeTag[T](tpe: Type): AbsTypeTag[T] = universe.AbsTypeTag[T](mirror, universe.FixedMirrorTypeCreator(mirror, tpe)) + def WeakTypeTag[T](tpe: Type): WeakTypeTag[T] = universe.WeakTypeTag[T](mirror, universe.FixedMirrorTypeCreator(mirror, tpe)) def TypeTag[T](tpe: Type): TypeTag[T] = universe.TypeTag[T](mirror, universe.FixedMirrorTypeCreator(mirror, tpe)) } diff --git a/src/compiler/scala/reflect/reify/Errors.scala b/src/compiler/scala/reflect/reify/Errors.scala index 5e15c5ad3a..73c13901b6 100644 --- a/src/compiler/scala/reflect/reify/Errors.scala +++ b/src/compiler/scala/reflect/reify/Errors.scala @@ -27,8 +27,8 @@ trait Errors { throw new ReificationError(defaultErrorPosition, msg) } - def CannotReifyTypeTagHavingUnresolvedTypeParameters(tpe: Type) = { - val msg = "cannot reify TypeTag having unresolved type parameter %s".format(tpe) + def CannotReifyWeakType(details: Any) = { + val msg = "cannot create a TypeTag" + details throw new ReificationError(defaultErrorPosition, msg) } diff --git a/src/compiler/scala/reflect/reify/States.scala b/src/compiler/scala/reflect/reify/States.scala index a01cfe5d74..58455c9f3c 100644 --- a/src/compiler/scala/reflect/reify/States.scala +++ b/src/compiler/scala/reflect/reify/States.scala @@ -34,9 +34,11 @@ trait States { def reificationIsConcrete_=(value: Boolean): Unit = { _reificationIsConcrete = value if (!value && concrete) { - assert(current.isInstanceOf[Type], current) - val offender = current.asInstanceOf[Type] - CannotReifyTypeTagHavingUnresolvedTypeParameters(offender) + current match { + case tpe: Type => CannotReifyWeakType(s" having unresolved type parameter $tpe") + case sym: Symbol => CannotReifyWeakType(s" referring to local ${sym.kindString} ${sym.fullName}") + case _ => CannotReifyWeakType("") + } } } var reifyStack = reifee :: Nil diff --git a/src/compiler/scala/reflect/reify/Taggers.scala b/src/compiler/scala/reflect/reify/Taggers.scala index a8523fe686..bc12d383a4 100644 --- a/src/compiler/scala/reflect/reify/Taggers.scala +++ b/src/compiler/scala/reflect/reify/Taggers.scala @@ -37,7 +37,7 @@ abstract class Taggers { } def materializeTypeTag(universe: Tree, mirror: Tree, tpe: Type, concrete: Boolean): Tree = { - val tagType = if (concrete) TypeTagClass else AbsTypeTagClass + val tagType = if (concrete) TypeTagClass else WeakTypeTagClass // what we need here is to compose a type BaseUniverse # TypeTag[$tpe] // to look for an implicit that conforms to this type // that's why neither appliedType(tagType, List(tpe)) aka TypeRef(TypeTagsClass.thisType, tagType, List(tpe)) @@ -50,7 +50,7 @@ abstract class Taggers { case success if !success.isEmpty => Apply(Select(success, nme.in), List(mirror orElse mkDefaultMirrorRef(c.universe)(universe, c.callsiteTyper))) case _ => - val tagModule = if (concrete) TypeTagModule else AbsTypeTagModule + val tagModule = if (concrete) TypeTagModule else WeakTypeTagModule materializeTag(universe, tpe, tagModule, c.reifyType(universe, mirror, tpe, concrete = concrete)) } } diff --git a/src/compiler/scala/reflect/reify/codegen/GenSymbols.scala b/src/compiler/scala/reflect/reify/codegen/GenSymbols.scala index ca6e14cfd3..c4b674955a 100644 --- a/src/compiler/scala/reflect/reify/codegen/GenSymbols.scala +++ b/src/compiler/scala/reflect/reify/codegen/GenSymbols.scala @@ -90,49 +90,61 @@ trait GenSymbols { } } else { // todo. make sure that free methods and free local defs work correctly - if (sym.isTerm) reifyFreeTerm(sym, Ident(sym)) - else reifyFreeType(sym, Ident(sym)) + if (sym.isExistential) reifySymDef(sym) + else if (sym.isTerm) reifyFreeTerm(Ident(sym)) + else reifyFreeType(Ident(sym)) } } - def reifyFreeTerm(sym: Symbol, value: Tree): Tree = - reifyIntoSymtab(sym) { + def reifyFreeTerm(binding: Tree): Tree = + reifyIntoSymtab(binding.symbol) { sym => if (reifyDebug) println("Free term" + (if (sym.isCapturedVariable) " (captured)" else "") + ": " + sym + "(" + sym.accurateKindString + ")") - var name = newTermName(nme.REIFY_FREE_PREFIX + sym.name) - if (sym.isType) name = name.append(nme.REIFY_FREE_THIS_SUFFIX) + val name = newTermName(nme.REIFY_FREE_PREFIX + sym.name + (if (sym.isType) nme.REIFY_FREE_THIS_SUFFIX else "")) if (sym.isCapturedVariable) { - assert(value.isInstanceOf[Ident], showRaw(value)) - val capturedTpe = capturedVariableType(sym) - val capturedValue = referenceCapturedVariable(sym) - (name, mirrorBuildCall(nme.newFreeTerm, reify(sym.name.toString), reify(capturedTpe), capturedValue, mirrorBuildCall(nme.flagsFromBits, reify(sym.flags)), reify(origin(sym)))) + assert(binding.isInstanceOf[Ident], showRaw(binding)) + val capturedBinding = referenceCapturedVariable(sym) + Reification(name, capturedBinding, mirrorBuildCall(nme.newFreeTerm, reify(sym.name.toString), capturedBinding, mirrorBuildCall(nme.flagsFromBits, reify(sym.flags)), reify(origin(sym)))) } else { - (name, mirrorBuildCall(nme.newFreeTerm, reify(sym.name.toString), reify(sym.tpe), value, mirrorBuildCall(nme.flagsFromBits, reify(sym.flags)), reify(origin(sym)))) + Reification(name, binding, mirrorBuildCall(nme.newFreeTerm, reify(sym.name.toString), binding, mirrorBuildCall(nme.flagsFromBits, reify(sym.flags)), reify(origin(sym)))) } } - def reifyFreeType(sym: Symbol, value: Tree): Tree = - reifyIntoSymtab(sym) { + def reifyFreeType(binding: Tree): Tree = + reifyIntoSymtab(binding.symbol) { sym => if (reifyDebug) println("Free type: %s (%s)".format(sym, sym.accurateKindString)) - var name = newTermName(nme.REIFY_FREE_PREFIX + sym.name) - val phantomTypeTag = Apply(TypeApply(Select(Ident(nme.UNIVERSE_SHORT), nme.TypeTag), List(value)), List(Literal(Constant(null)), Literal(Constant(null)))) - val flavor = if (sym.isExistential) nme.newFreeExistential else nme.newFreeType - (name, mirrorBuildCall(flavor, reify(sym.name.toString), reify(sym.info), phantomTypeTag, mirrorBuildCall(nme.flagsFromBits, reify(sym.flags)), reify(origin(sym)))) + state.reificationIsConcrete = false + val name = newTermName(nme.REIFY_FREE_PREFIX + sym.name) + Reification(name, binding, mirrorBuildCall(nme.newFreeType, reify(sym.name.toString), mirrorBuildCall(nme.flagsFromBits, reify(sym.flags)), reify(origin(sym)))) } def reifySymDef(sym: Symbol): Tree = - reifyIntoSymtab(sym) { + reifyIntoSymtab(sym) { sym => if (reifyDebug) println("Sym def: %s (%s)".format(sym, sym.accurateKindString)) - assert(!sym.isLocatable, sym) // if this assertion fires, then tough type reification needs to be rethought - sym.owner.ownersIterator find (!_.isLocatable) foreach reifySymDef - var name = newTermName(nme.REIFY_SYMDEF_PREFIX + sym.name) - (name, mirrorBuildCall(nme.newNestedSymbol, reify(sym.owner), reify(sym.name), reify(sym.pos), mirrorBuildCall(nme.flagsFromBits, reify(sym.flags)), reify(sym.isClass))) + val name = newTermName(nme.REIFY_SYMDEF_PREFIX + sym.name) + def reifiedOwner = if (sym.owner.isLocatable) reify(sym.owner) else reifySymDef(sym.owner) + Reification(name, Ident(sym), mirrorBuildCall(nme.newNestedSymbol, reifiedOwner, reify(sym.name), reify(sym.pos), mirrorBuildCall(nme.flagsFromBits, reify(sym.flags)), reify(sym.isClass))) } - private def reifyIntoSymtab(sym: Symbol)(reificode: => (TermName, Tree)): Tree ={ + case class Reification(name: Name, binding: Tree, tree: Tree) + + private def reifyIntoSymtab(sym: Symbol)(reificode: Symbol => Reification): Tree = { def fromSymtab = symtab symRef sym if (fromSymtab == EmptyTree) { - val reification = reificode - state.symtab += (sym, reification._1, reification._2) + // reification is lazy, so that we can carefully choose where to evaluate it + // and we choose this place to be exactly here: + // + // reasons: + // 1) reification happens at maximum once per symbol to prevent repeated reifications + // 2) reification happens before putting the symbol itself into the symbol table to ensure correct initialization order: + // for example, if reification of symbol A refers to reification of symbol B + // (this might happen when we're doing `reifySymDef`, which expands into `newNestedSymbol`, which needs `sym.owner`) + // then we have to put reification-B into the symbol table before reification-A + // so that subsequent code generation that traverses the symbol table in the first-added first-codegenned order + // produces valid Scala code (with vals in a block depending only on lexically preceding vals) + val reification = reificode(sym) + import reification.{name, binding} + val tree = reification.tree addAttachment ReifyBindingAttachment(binding) + state.symtab += (sym, name, tree) } fromSymtab } diff --git a/src/compiler/scala/reflect/reify/codegen/GenTrees.scala b/src/compiler/scala/reflect/reify/codegen/GenTrees.scala index f48df8df65..bdcc7383b0 100644 --- a/src/compiler/scala/reflect/reify/codegen/GenTrees.scala +++ b/src/compiler/scala/reflect/reify/codegen/GenTrees.scala @@ -124,7 +124,7 @@ trait GenTrees { val sym = tree.symbol if (reifyDebug) println("This for %s, reified as freeVar".format(sym)) if (reifyDebug) println("Free: " + sym) - mirrorBuildCall(nme.Ident, reifyFreeTerm(sym, This(sym))) + mirrorBuildCall(nme.Ident, reifyFreeTerm(This(sym))) case tree @ This(_) if !tree.symbol.isLocalToReifee => if (reifyDebug) println("This for %s, reified as This".format(tree.symbol)) mirrorBuildCall(nme.This, reify(tree.symbol)) diff --git a/src/compiler/scala/reflect/reify/codegen/GenTypes.scala b/src/compiler/scala/reflect/reify/codegen/GenTypes.scala index 1d2e177688..7aa87dc2f8 100644 --- a/src/compiler/scala/reflect/reify/codegen/GenTypes.scala +++ b/src/compiler/scala/reflect/reify/codegen/GenTypes.scala @@ -73,7 +73,7 @@ trait GenTypes { if (tpe.isSpliceable && !(quantified contains tpe.typeSymbol)) { if (reifyDebug) println("splicing " + tpe) - val tagFlavor = if (concrete) tpnme.TypeTag.toString else tpnme.AbsTypeTag.toString + val tagFlavor = if (concrete) tpnme.TypeTag.toString else tpnme.WeakTypeTag.toString val key = (tagFlavor, tpe.typeSymbol) // if this fails, it might produce the dreaded "erroneous or inaccessible type" error // to find out the whereabouts of the error run scalac with -Ydebug diff --git a/src/compiler/scala/reflect/reify/codegen/GenUtils.scala b/src/compiler/scala/reflect/reify/codegen/GenUtils.scala index 2b7733fb6c..8aef8d772f 100644 --- a/src/compiler/scala/reflect/reify/codegen/GenUtils.scala +++ b/src/compiler/scala/reflect/reify/codegen/GenUtils.scala @@ -131,7 +131,7 @@ trait GenUtils { def isCrossStageTypeBearer(tree: Tree): Boolean = tree match { case TypeApply(hk, _) => isCrossStageTypeBearer(hk) - case Select(sym @ Select(_, ctor), nme.apply) if ctor == nme.AbsTypeTag || ctor == nme.TypeTag || ctor == nme.Expr => true + case Select(sym @ Select(_, ctor), nme.apply) if ctor == nme.WeakTypeTag || ctor == nme.TypeTag || ctor == nme.Expr => true case _ => false } diff --git a/src/compiler/scala/reflect/reify/package.scala b/src/compiler/scala/reflect/reify/package.scala index a253effc1c..a76f147dc4 100644 --- a/src/compiler/scala/reflect/reify/package.scala +++ b/src/compiler/scala/reflect/reify/package.scala @@ -1,6 +1,6 @@ package scala.reflect -import language.implicitConversions +import scala.language.implicitConversions import scala.reflect.base.{Universe => BaseUniverse} import scala.reflect.macros.{Context, ReificationError, UnexpectedReificationError} import scala.tools.nsc.Global @@ -26,7 +26,14 @@ package object reify { private[reify] def mkDefaultMirrorRef(global: Global)(universe: global.Tree, typer0: global.analyzer.Typer): global.Tree = { import global._ import definitions._ - val enclosingErasure = reifyEnclosingRuntimeClass(global)(typer0) + val enclosingErasure = { + val rClassTree = reifyEnclosingRuntimeClass(global)(typer0) + // HACK around SI-6259 + // If we're in the constructor of an object or others don't have easy access to `this`, we have no good way to grab + // the class of that object. Instead, we construct an anonymous class and grab his class file, assuming + // this is enough to get the correct class loadeer for the class we *want* a mirror for, the object itself. + rClassTree orElse Apply(Select(treeBuilder.makeAnonymousNew(Nil), sn.GetClass), Nil) + } // JavaUniverse is defined in scala-reflect.jar, so we must be very careful in case someone reifies stuff having only scala-library.jar on the classpath val isJavaUniverse = JavaUniverseClass != NoSymbol && universe.tpe <:< JavaUniverseClass.toTypeConstructor if (isJavaUniverse && !enclosingErasure.isEmpty) Apply(Select(universe, nme.runtimeMirror), List(Select(enclosingErasure, sn.GetClassLoader))) @@ -61,6 +68,8 @@ package object reify { } } + // Note: If current context is inside the constructor of an object or otherwise not inside + // a class/object body, this will return an EmptyTree. def reifyEnclosingRuntimeClass(global: Global)(typer0: global.analyzer.Typer): global.Tree = { import global._ import definitions._ @@ -68,8 +77,15 @@ package object reify { if (isThisInScope) { val enclosingClasses = typer0.context.enclosingContextChain map (_.tree) collect { case classDef: ClassDef => classDef } val classInScope = enclosingClasses.headOption getOrElse EmptyTree + def isUnsafeToUseThis = { + val isInsideConstructorSuper = typer0.context.enclosingContextChain exists (_.inSelfSuperCall) + // Note: It's ok to check for any object here, because if we were in an enclosing class, we'd already have returned its classOf + val isInsideObject = typer0.context.enclosingContextChain map (_.tree) exists { case _: ModuleDef => true; case _ => false } + isInsideConstructorSuper && isInsideObject + } if (!classInScope.isEmpty) reifyRuntimeClass(global)(typer0, classInScope.symbol.toTypeConstructor, concrete = true) - else Select(This(tpnme.EMPTY), sn.GetClass) + else if(!isUnsafeToUseThis) Select(This(tpnme.EMPTY), sn.GetClass) + else EmptyTree } else EmptyTree } } diff --git a/src/compiler/scala/reflect/reify/phases/Reshape.scala b/src/compiler/scala/reflect/reify/phases/Reshape.scala index fcf3c0e65c..0b07c47c0f 100644 --- a/src/compiler/scala/reflect/reify/phases/Reshape.scala +++ b/src/compiler/scala/reflect/reify/phases/Reshape.scala @@ -103,8 +103,8 @@ trait Reshape { // of, say, ClassTag or TypeTag case Apply(TypeApply(_, List(tt)), _) if original.symbol == MacroInternal_materializeClassTag => gen.mkNullaryCall(Predef_implicitly, List(appliedType(ClassTagClass, tt.tpe))) - case Apply(TypeApply(_, List(tt)), List(pre)) if original.symbol == MacroInternal_materializeAbsTypeTag => - gen.mkNullaryCall(Predef_implicitly, List(typeRef(pre.tpe, AbsTypeTagClass, List(tt.tpe)))) + case Apply(TypeApply(_, List(tt)), List(pre)) if original.symbol == MacroInternal_materializeWeakTypeTag => + gen.mkNullaryCall(Predef_implicitly, List(typeRef(pre.tpe, WeakTypeTagClass, List(tt.tpe)))) case Apply(TypeApply(_, List(tt)), List(pre)) if original.symbol == MacroInternal_materializeTypeTag => gen.mkNullaryCall(Predef_implicitly, List(typeRef(pre.tpe, TypeTagClass, List(tt.tpe)))) case _ => diff --git a/src/compiler/scala/reflect/reify/utils/Extractors.scala b/src/compiler/scala/reflect/reify/utils/Extractors.scala index ebe3957e69..1df9efbb82 100644 --- a/src/compiler/scala/reflect/reify/utils/Extractors.scala +++ b/src/compiler/scala/reflect/reify/utils/Extractors.scala @@ -94,7 +94,7 @@ trait Extractors { object ReifiedTree { def apply(universe: Tree, mirror: Tree, symtab: SymbolTable, rtree: Tree, tpe: Type, rtpe: Tree, concrete: Boolean): Tree = { - val tagFactory = if (concrete) nme.TypeTag else nme.AbsTypeTag + val tagFactory = if (concrete) nme.TypeTag else nme.WeakTypeTag val tagCtor = TypeApply(Select(Select(Ident(nme.UNIVERSE_SHORT), tagFactory), nme.apply), List(TypeTree(tpe))) val exprCtor = TypeApply(Select(Select(Ident(nme.UNIVERSE_SHORT), nme.Expr), nme.apply), List(TypeTree(tpe))) val tagArgs = List(Ident(nme.MIRROR_SHORT), mkCreator(tpnme.REIFY_TYPECREATOR_PREFIX, symtab, rtpe)) @@ -122,7 +122,7 @@ trait Extractors { object ReifiedType { def apply(universe: Tree, mirror: Tree, symtab: SymbolTable, tpe: Type, rtpe: Tree, concrete: Boolean) = { - val tagFactory = if (concrete) nme.TypeTag else nme.AbsTypeTag + val tagFactory = if (concrete) nme.TypeTag else nme.WeakTypeTag val ctor = TypeApply(Select(Select(Ident(nme.UNIVERSE_SHORT), tagFactory), nme.apply), List(TypeTree(tpe))) val args = List(Ident(nme.MIRROR_SHORT), mkCreator(tpnme.REIFY_TYPECREATOR_PREFIX, symtab, rtpe)) val unwrapped = Apply(ctor, args) @@ -176,12 +176,11 @@ trait Extractors { List( _, _, - binding, Apply(Select(Select(uref2 @ Ident(_), build2), flagsFromBits), List(Literal(Constant(flags: Long)))), Literal(Constant(origin: String))))) if uref1.name == nme.UNIVERSE_SHORT && build1 == nme.build && newFreeTerm == nme.newFreeTerm && uref2.name == nme.UNIVERSE_SHORT && build2 == nme.build && flagsFromBits == nme.flagsFromBits => - Some(uref1, name, binding, flags, origin) + Some(uref1, name, reifyBinding(tree), flags, origin) case _ => None } @@ -194,22 +193,11 @@ trait Extractors { Select(Select(uref1 @ Ident(_), build1), newFreeType), List( _, - _, - value, Apply(Select(Select(uref2 @ Ident(_), build2), flagsFromBits), List(Literal(Constant(flags: Long)))), Literal(Constant(origin: String))))) - if uref1.name == nme.UNIVERSE_SHORT && build1 == nme.build && (newFreeType == nme.newFreeType || newFreeType == nme.newFreeExistential) && + if uref1.name == nme.UNIVERSE_SHORT && build1 == nme.build && newFreeType == nme.newFreeType && uref2.name == nme.UNIVERSE_SHORT && build2 == nme.build && flagsFromBits == nme.flagsFromBits => - value match { - case Apply(TypeApply(Select(Select(uref3 @ Ident(_), typeTag), apply), List(binding)), List(Literal(Constant(null)), _)) - if uref3.name == nme.UNIVERSE_SHORT && typeTag == nme.TypeTag && apply == nme.apply => - Some(uref1, name, binding, flags, origin) - case Apply(TypeApply(Select(uref3 @ Ident(_), typeTag), List(binding)), List(Literal(Constant(null)), _)) - if uref3.name == nme.UNIVERSE_SHORT && typeTag == nme.TypeTag => - Some(uref1, name, binding, flags, origin) - case _ => - throw new Error("unsupported free type def: %s%n%s".format(value, showRaw(value))) - } + Some(uref1, name, reifyBinding(tree), flags, origin) case _ => None } diff --git a/src/compiler/scala/reflect/reify/utils/StdAttachments.scala b/src/compiler/scala/reflect/reify/utils/StdAttachments.scala index abbed814e0..0b9cf58c89 100644 --- a/src/compiler/scala/reflect/reify/utils/StdAttachments.scala +++ b/src/compiler/scala/reflect/reify/utils/StdAttachments.scala @@ -6,7 +6,13 @@ trait StdAttachments { import global._ - case class ReifyBindingAttachment(binding: Symbol) + case class ReifyBindingAttachment(binding: Tree) - case class ReifyAliasAttachment(binding: Symbol, alias: TermName) + def reifyBinding(tree: Tree): Tree = + tree.attachments.get[ReifyBindingAttachment] match { + case Some(ReifyBindingAttachment(binding)) => binding + case other => Ident(NoSymbol) + } + + case class ReifyAliasAttachment(sym: Symbol, alias: TermName) }
\ No newline at end of file diff --git a/src/compiler/scala/reflect/reify/utils/SymbolTables.scala b/src/compiler/scala/reflect/reify/utils/SymbolTables.scala index 3892c86dd3..2e17558f54 100644 --- a/src/compiler/scala/reflect/reify/utils/SymbolTables.scala +++ b/src/compiler/scala/reflect/reify/utils/SymbolTables.scala @@ -17,6 +17,7 @@ trait SymbolTables { private[SymbolTable] val original: Option[List[Tree]] = None) { def syms: List[Symbol] = symtab.keys.toList + def isConcrete: Boolean = symtab.values forall (sym => !FreeTypeDef.unapply(sym).isDefined) // def aliases: Map[Symbol, List[TermName]] = aliases.distinct groupBy (_._1) mapValues (_ map (_._2)) @@ -45,28 +46,27 @@ trait SymbolTables { def symRef(sym: Symbol): Tree = symtab.get(sym) match { - case Some(FreeDef(_, name, _, _, _)) => Ident(name) addAttachment ReifyBindingAttachment(sym) - case Some(SymDef(_, name, _, _)) => Ident(name) addAttachment ReifyBindingAttachment(sym) + case Some(FreeDef(_, name, binding, _, _)) => Ident(name) addAttachment binding + case Some(SymDef(_, name, _, _)) => Ident(name) addAttachment ReifyBindingAttachment(Ident(sym)) case None => EmptyTree } def +(sym: Symbol, name: TermName, reification: Tree): SymbolTable = add(sym, name, reification) - def +(sym: Symbol, name: TermName): SymbolTable = add(sym, name) def +(symDef: Tree): SymbolTable = add(symDef) def ++(symDefs: TraversableOnce[Tree]): SymbolTable = (this /: symDefs)((symtab, symDef) => symtab.add(symDef)) def ++(symtab: SymbolTable): SymbolTable = { val updated = this ++ symtab.symtab.values; new SymbolTable(updated.symtab, updated.aliases ++ symtab.aliases) } def -(sym: Symbol): SymbolTable = remove(sym) def -(name: TermName): SymbolTable = remove(name) - def -(symDef: Tree): SymbolTable = remove(binding(symDef)) + def -(symDef: Tree): SymbolTable = remove(reifyBinding(symDef).symbol) def --(syms: GenTraversableOnce[Symbol]): SymbolTable = (this /: syms)((symtab, sym) => symtab.remove(sym)) def --(names: Iterable[TermName]): SymbolTable = (this /: names)((symtab, name) => symtab.remove(name)) - def --(symDefs: TraversableOnce[Tree]): SymbolTable = this -- (symDefs map (binding(_))) + def --(symDefs: TraversableOnce[Tree]): SymbolTable = this -- (symDefs map (reifyBinding(_))) def --(symtab: SymbolTable): SymbolTable = { val updated = this -- symtab.symtab.values; new SymbolTable(updated.symtab, updated.aliases diff symtab.aliases) } def filterSyms(p: Symbol => Boolean): SymbolTable = this -- (syms filterNot p) def filterAliases(p: (Symbol, TermName) => Boolean): SymbolTable = this -- (aliases filterNot (tuple => p(tuple._1, tuple._2)) map (_._2)) private def add(symDef: Tree): SymbolTable = { - val sym = binding(symDef) + val sym = reifyBinding(symDef).symbol assert(sym != NoSymbol, showRaw(symDef)) val name = symDef match { case FreeDef(_, name, _, _, _) => name @@ -85,7 +85,8 @@ trait SymbolTables { val fresh = typer.context.unit.fresh newTermName(fresh.newName(name)) } - add(ValDef(NoMods, freshName(name0), TypeTree(), reification) addAttachment ReifyBindingAttachment(sym)) + val bindingAttachment = reification.attachments.get[ReifyBindingAttachment].get + add(ValDef(NoMods, freshName(name0), TypeTree(), reification) addAttachment bindingAttachment) } private def add(sym: Symbol, name: TermName): SymbolTable = { @@ -115,12 +116,6 @@ trait SymbolTables { new SymbolTable(newSymtab, newAliases) } - private def binding(tree: Tree): Symbol = - tree.attachments.get[ReifyBindingAttachment] match { - case Some(ReifyBindingAttachment(binding)) => binding - case other => NoSymbol - } - private val cache = mutable.Map[SymbolTable, List[Tree]]() def encode: List[Tree] = cache.getOrElseUpdate(this, SymbolTable.encode(this)) map (_.duplicate) @@ -147,7 +142,7 @@ trait SymbolTables { def apply(encoded: List[Tree]): SymbolTable = { var result = new SymbolTable(original = Some(encoded)) encoded foreach (entry => (entry.attachments.get[ReifyBindingAttachment], entry.attachments.get[ReifyAliasAttachment]) match { - case (Some(ReifyBindingAttachment(sym)), _) => result += entry + case (Some(ReifyBindingAttachment(_)), _) => result += entry case (_, Some(ReifyAliasAttachment(sym, alias))) => result = new SymbolTable(result.symtab, result.aliases :+ (sym, alias)) case _ => // do nothing, this is boilerplate that can easily be recreated by subsequent `result.encode` }) @@ -169,30 +164,26 @@ trait SymbolTables { def fillInSymbol(sym: Symbol): Tree = { if (reifyDebug) println("Filling in: %s (%s)".format(sym, sym.accurateKindString)) - val isFree = currtab.symName(sym) startsWith nme.REIFY_FREE_PREFIX - if (isFree) { - if (sym.annotations.isEmpty) EmptyTree - else Apply(Select(currtab.symRef(sym), nme.setAnnotations), List(reifier.reify(sym.annotations))) - } else { - // SI-6204 don't reify signatures for incomplete symbols, because this might lead to cyclic reference errors - val signature = - if (sym.isInitialized) { - if (sym.isCapturedVariable) capturedVariableType(sym) - else sym.info - } else NoType - val rset = reifier.mirrorBuildCall(nme.setTypeSignature, currtab.symRef(sym), reifier.reify(signature)) - // `Symbol.annotations` doesn't initialize the symbol, so we don't need to do anything special here - // also since we call `sym.info` a few lines above, by now the symbol will be initialized (if possible) - // so the annotations will be filled in and will be waiting to be reified (unless symbol initialization is prohibited as described above) - if (sym.annotations.isEmpty) rset - else reifier.mirrorBuildCall(nme.setAnnotations, rset, reifier.mkList(sym.annotations map reifier.reifyAnnotationInfo)) - } + val isFreeTerm = FreeTermDef.unapply(currtab.symDef(sym)).isDefined + // SI-6204 don't reify signatures for incomplete symbols, because this might lead to cyclic reference errors + val signature = + if (sym.isInitialized) { + if (sym.isCapturedVariable) capturedVariableType(sym) + else if (isFreeTerm) sym.tpe + else sym.info + } else NoType + val rset = reifier.mirrorBuildCall(nme.setTypeSignature, currtab.symRef(sym), reifier.reify(signature)) + // `Symbol.annotations` doesn't initialize the symbol, so we don't need to do anything special here + // also since we call `sym.info` a few lines above, by now the symbol will be initialized (if possible) + // so the annotations will be filled in and will be waiting to be reified (unless symbol initialization is prohibited as described above) + if (sym.annotations.isEmpty) rset + else reifier.mirrorBuildCall(nme.setAnnotations, rset, reifier.mkList(sym.annotations map reifier.reifyAnnotationInfo)) } // `fillInSymbol` might add symbols to `symtab`, that's why this is done iteratively var progress = 0 while (progress < cumulativeSymtab.length) { - val sym = currtab.binding(cumulativeSymtab(progress)) + val sym = reifyBinding(cumulativeSymtab(progress)).symbol if (sym != NoSymbol) { val symtabProgress = currtab.symtab.size val aliasesProgress = currtab.aliases.length @@ -207,7 +198,7 @@ trait SymbolTables { val withAliases = cumulativeSymtab flatMap (entry => { val result = mutable.ListBuffer[Tree]() result += entry - val sym = currtab.binding(entry) + val sym = reifyBinding(entry).symbol if (sym != NoSymbol) result ++= cumulativeAliases.distinct filter (alias => alias._1 == sym && alias._2 != currtab.symName(sym)) map (alias => { val canonicalName = currtab.symName(sym) diff --git a/src/compiler/scala/tools/ant/ClassloadVerify.scala b/src/compiler/scala/tools/ant/ClassloadVerify.scala index 33a20f6894..d1d557b9d3 100644 --- a/src/compiler/scala/tools/ant/ClassloadVerify.scala +++ b/src/compiler/scala/tools/ant/ClassloadVerify.scala @@ -10,7 +10,7 @@ package scala.tools.ant import org.apache.tools.ant.Project import org.apache.tools.ant.types.{Path, Reference} -import collection.JavaConverters._ +import scala.collection.JavaConverters._ import scala.tools.util.VerifyClass class ClassloadVerify extends ScalaMatchingTask { diff --git a/src/compiler/scala/tools/ant/sabbus/Compilers.scala b/src/compiler/scala/tools/ant/sabbus/Compilers.scala index 843ee043ea..bb32149a75 100644 --- a/src/compiler/scala/tools/ant/sabbus/Compilers.scala +++ b/src/compiler/scala/tools/ant/sabbus/Compilers.scala @@ -11,7 +11,7 @@ package scala.tools.ant.sabbus import java.net.URL -object Compilers extends collection.DefaultMap[String, Compiler] { +object Compilers extends scala.collection.DefaultMap[String, Compiler] { val debug = false diff --git a/src/compiler/scala/tools/cmd/Property.scala b/src/compiler/scala/tools/cmd/Property.scala index aae5bebcc8..bde7bb8cb8 100644 --- a/src/compiler/scala/tools/cmd/Property.scala +++ b/src/compiler/scala/tools/cmd/Property.scala @@ -64,7 +64,7 @@ trait Property extends Reference { propertiesToOptions(loadProperties(file)) def propertiesToOptions(props: java.util.Properties): List[String] = { - import collection.JavaConversions._ + import scala.collection.JavaConversions._ propertiesToOptions(props.toList) } def propertiesToOptions(props: List[(String, String)]) = props flatMap propMapper diff --git a/src/compiler/scala/tools/cmd/Reference.scala b/src/compiler/scala/tools/cmd/Reference.scala index 77fe01051e..b6c564e9fb 100644 --- a/src/compiler/scala/tools/cmd/Reference.scala +++ b/src/compiler/scala/tools/cmd/Reference.scala @@ -6,7 +6,7 @@ package scala.tools package cmd -import collection.mutable.ListBuffer +import scala.collection.mutable.ListBuffer import nsc.Properties.envOrNone /** Mixes in the specification trait and uses the vals therein to diff --git a/src/compiler/scala/tools/cmd/gen/AnyVals.scala b/src/compiler/scala/tools/cmd/gen/AnyVals.scala index 7842603af7..910804245b 100644 --- a/src/compiler/scala/tools/cmd/gen/AnyVals.scala +++ b/src/compiler/scala/tools/cmd/gen/AnyVals.scala @@ -14,7 +14,7 @@ trait AnyValReps { sealed abstract class AnyValNum(name: String, repr: Option[String], javaEquiv: String) extends AnyValRep(name,repr,javaEquiv) { case class Op(val op : String, val doc : String) - + private def companionCoercions(tos: AnyValRep*) = { tos.toList map (to => """implicit def @javaequiv@2%s(x: @name@): %s = x.to%s""".format(to.javaEquiv, to.name, to.name) @@ -24,7 +24,7 @@ trait AnyValReps { def coercionComment = """ /** Language mandated coercions from @name@ to "wider" types.%s */""".format(coercionCommentExtra) - + def implicitCoercions: List[String] = { val coercions = this match { case B => companionCoercions(S, I, L, F, D) @@ -247,7 +247,7 @@ trait AnyValReps { def classDoc = interpolate(classDocTemplate) def objectDoc = "" def mkImports = "" - + def mkClass = assemble("final abstract class " + name + " private extends AnyVal", classLines) def mkObject = assemble("object " + name + " extends AnyValCompanion", objectLines) def make() = List[String]( @@ -281,7 +281,7 @@ trait AnyValTemplates { %s package scala -import language.implicitConversions +import scala.language.implicitConversions """.trim.format(timestampString) + "\n\n") diff --git a/src/compiler/scala/tools/cmd/gen/Codegen.scala b/src/compiler/scala/tools/cmd/gen/Codegen.scala index b94c640f1c..ff3d41c8b7 100644 --- a/src/compiler/scala/tools/cmd/gen/Codegen.scala +++ b/src/compiler/scala/tools/cmd/gen/Codegen.scala @@ -6,7 +6,7 @@ package scala.tools.cmd package gen -import language.postfixOps +import scala.language.postfixOps class Codegen(args: List[String]) extends { val parsed = CodegenSpec(args: _*) diff --git a/src/compiler/scala/tools/nsc/EvalLoop.scala b/src/compiler/scala/tools/nsc/EvalLoop.scala index da03419d8a..bd1381faf5 100644 --- a/src/compiler/scala/tools/nsc/EvalLoop.scala +++ b/src/compiler/scala/tools/nsc/EvalLoop.scala @@ -5,7 +5,7 @@ package scala.tools.nsc -import annotation.tailrec +import scala.annotation.tailrec import java.io.EOFException trait EvalLoop { diff --git a/src/compiler/scala/tools/nsc/Global.scala b/src/compiler/scala/tools/nsc/Global.scala index 187cba8410..16fd4e956d 100644 --- a/src/compiler/scala/tools/nsc/Global.scala +++ b/src/compiler/scala/tools/nsc/Global.scala @@ -7,13 +7,13 @@ package scala.tools.nsc import java.io.{ File, FileOutputStream, PrintWriter, IOException, FileNotFoundException } import java.nio.charset.{ Charset, CharsetDecoder, IllegalCharsetNameException, UnsupportedCharsetException } -import compat.Platform.currentTime +import scala.compat.Platform.currentTime import scala.tools.util.PathResolver import scala.collection.{ mutable, immutable } import io.{ SourceReader, AbstractFile, Path } import reporters.{ Reporter, ConsoleReporter } import util.{ Exceptional, ClassPath, MergedClassPath, StatisticsInfo, ScalaClassLoader, returning } -import scala.reflect.internal.util.{ NoPosition, SourceFile, NoSourceFile, BatchSourceFile, ScriptSourceFile } +import scala.reflect.internal.util.{ NoPosition, OffsetPosition, SourceFile, NoSourceFile, BatchSourceFile, ScriptSourceFile } import scala.reflect.internal.pickling.{ PickleBuffer, PickleFormat } import symtab.{ Flags, SymbolTable, SymbolLoaders, SymbolTrackers } import symtab.classfile.Pickler @@ -28,8 +28,8 @@ import backend.{ ScalaPrimitives, Platform, MSILPlatform, JavaPlatform } import backend.jvm.{GenJVM, GenASM} import backend.opt.{ Inliners, InlineExceptionHandlers, ClosureElimination, DeadCodeElimination } import backend.icode.analysis._ -import language.postfixOps -import reflect.internal.StdAttachments +import scala.language.postfixOps +import scala.reflect.internal.StdAttachments import scala.reflect.ClassTag class Global(var currentSettings: Settings, var reporter: Reporter) @@ -95,6 +95,7 @@ class Global(var currentSettings: Settings, var reporter: Reporter) /** Generate ASTs */ type TreeGen = scala.tools.nsc.ast.TreeGen + /** Tree generation, usually based on existing symbols. */ override object gen extends { val global: Global.this.type = Global.this } with TreeGen { @@ -102,6 +103,17 @@ class Global(var currentSettings: Settings, var reporter: Reporter) typer.typed(mkCast(tree, pt)) } + /** Trees fresh from the oven, mostly for use by the parser. */ + object treeBuilder extends { + val global: Global.this.type = Global.this + } with TreeBuilder { + def freshName(prefix: String): Name = freshTermName(prefix) + def freshTermName(prefix: String): TermName = currentUnit.freshTermName(prefix) + def freshTypeName(prefix: String): TypeName = currentUnit.freshTypeName(prefix) + def o2p(offset: Int): Position = new OffsetPosition(currentUnit.source, offset) + def r2p(start: Int, mid: Int, end: Int): Position = rangePos(currentUnit.source, start, mid, end) + } + /** Fold constants */ object constfold extends { val global: Global.this.type = Global.this @@ -265,9 +277,8 @@ class Global(var currentSettings: Settings, var reporter: Reporter) log("Running operation '%s' after every phase.\n".format(msg) + describeAfterEveryPhase(op)) } - def shouldLogAtThisPhase = ( - (settings.log.isSetByUser) - && ((settings.log containsPhase globalPhase) || (settings.log containsPhase phase)) + override def shouldLogAtThisPhase = settings.log.isSetByUser && ( + (settings.log containsPhase globalPhase) || (settings.log containsPhase phase) ) // Over 200 closure objects are eliminated by inlining this. @inline final def log(msg: => AnyRef) { @@ -883,7 +894,7 @@ class Global(var currentSettings: Settings, var reporter: Reporter) reSync(RootClass, Some(classPath), Some(oldEntries), Some(newEntries), invalidated, failed) } } - def show(msg: String, syms: collection.Traversable[Symbol]) = + def show(msg: String, syms: scala.collection.Traversable[Symbol]) = if (syms.nonEmpty) informProgress(s"$msg: ${syms map (_.fullName) mkString ","}") show("invalidated packages", invalidated) diff --git a/src/compiler/scala/tools/nsc/PhaseAssembly.scala b/src/compiler/scala/tools/nsc/PhaseAssembly.scala index e69382be21..46cdc6a4a0 100644 --- a/src/compiler/scala/tools/nsc/PhaseAssembly.scala +++ b/src/compiler/scala/tools/nsc/PhaseAssembly.scala @@ -8,7 +8,7 @@ package scala.tools.nsc import java.io.{ BufferedWriter, FileWriter } import scala.collection.mutable -import language.postfixOps +import scala.language.postfixOps /** * PhaseAssembly diff --git a/src/compiler/scala/tools/nsc/Phases.scala b/src/compiler/scala/tools/nsc/Phases.scala index d2274b108b..c80be474a6 100644 --- a/src/compiler/scala/tools/nsc/Phases.scala +++ b/src/compiler/scala/tools/nsc/Phases.scala @@ -6,8 +6,8 @@ package scala.tools.nsc import symtab.Flags -import reflect.internal.util.TableDef -import language.postfixOps +import scala.reflect.internal.util.TableDef +import scala.language.postfixOps object Phases { val MaxPhases = 64 diff --git a/src/compiler/scala/tools/nsc/ast/NodePrinters.scala b/src/compiler/scala/tools/nsc/ast/NodePrinters.scala index 0b54eda66d..d1faa4d219 100644 --- a/src/compiler/scala/tools/nsc/ast/NodePrinters.scala +++ b/src/compiler/scala/tools/nsc/ast/NodePrinters.scala @@ -6,9 +6,9 @@ package scala.tools.nsc package ast -import compat.Platform.EOL +import scala.compat.Platform.EOL import symtab.Flags._ -import language.postfixOps +import scala.language.postfixOps /** The object `nodePrinter` converts the internal tree * representation to a string. diff --git a/src/compiler/scala/tools/nsc/ast/Printers.scala b/src/compiler/scala/tools/nsc/ast/Printers.scala index 885fc3f518..3392b78595 100644 --- a/src/compiler/scala/tools/nsc/ast/Printers.scala +++ b/src/compiler/scala/tools/nsc/ast/Printers.scala @@ -10,7 +10,7 @@ import java.io.{ OutputStream, PrintWriter, StringWriter, Writer } import symtab.Flags._ import symtab.SymbolTable -trait Printers extends reflect.internal.Printers { this: Global => +trait Printers extends scala.reflect.internal.Printers { this: Global => import treeInfo.{ IsTrue, IsFalse } diff --git a/src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala b/src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala index 043834ae55..267a5dcefd 100644 --- a/src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala +++ b/src/compiler/scala/tools/nsc/ast/TreeBrowsers.scala @@ -18,7 +18,7 @@ import scala.concurrent.Lock import scala.text._ import symtab.Flags._ import symtab.SymbolTable -import language.implicitConversions +import scala.language.implicitConversions /** * Tree browsers can show the AST in a graphical and interactive diff --git a/src/compiler/scala/tools/nsc/ast/TreeDSL.scala b/src/compiler/scala/tools/nsc/ast/TreeDSL.scala index e90d779885..01bd0bbb06 100644 --- a/src/compiler/scala/tools/nsc/ast/TreeDSL.scala +++ b/src/compiler/scala/tools/nsc/ast/TreeDSL.scala @@ -9,7 +9,7 @@ package ast import PartialFunction._ import symtab.Flags -import language.implicitConversions +import scala.language.implicitConversions /** A DSL for generating scala code. The goal is that the * code generating code should look a lot like the code it diff --git a/src/compiler/scala/tools/nsc/ast/TreeGen.scala b/src/compiler/scala/tools/nsc/ast/TreeGen.scala index 3177ceefcd..20da5f0087 100644 --- a/src/compiler/scala/tools/nsc/ast/TreeGen.scala +++ b/src/compiler/scala/tools/nsc/ast/TreeGen.scala @@ -9,12 +9,12 @@ package ast import scala.collection.mutable.ListBuffer import symtab.Flags._ import symtab.SymbolTable -import language.postfixOps +import scala.language.postfixOps /** XXX to resolve: TreeGen only assumes global is a SymbolTable, but * TreeDSL at the moment expects a Global. Can we get by with SymbolTable? */ -abstract class TreeGen extends reflect.internal.TreeGen with TreeDSL { +abstract class TreeGen extends scala.reflect.internal.TreeGen with TreeDSL { val global: Global import global._ diff --git a/src/compiler/scala/tools/nsc/ast/TreeInfo.scala b/src/compiler/scala/tools/nsc/ast/TreeInfo.scala index e755553e25..9e46155d14 100644 --- a/src/compiler/scala/tools/nsc/ast/TreeInfo.scala +++ b/src/compiler/scala/tools/nsc/ast/TreeInfo.scala @@ -6,8 +6,8 @@ package scala.tools.nsc package ast -import reflect.internal.HasFlags -import reflect.internal.Flags._ +import scala.reflect.internal.HasFlags +import scala.reflect.internal.Flags._ import symtab._ /** This class ... @@ -15,7 +15,7 @@ import symtab._ * @author Martin Odersky * @version 1.0 */ -abstract class TreeInfo extends reflect.internal.TreeInfo { +abstract class TreeInfo extends scala.reflect.internal.TreeInfo { val global: Global import global._ diff --git a/src/compiler/scala/tools/nsc/ast/Trees.scala b/src/compiler/scala/tools/nsc/ast/Trees.scala index 30fc1778b1..acf0a8ee6f 100644 --- a/src/compiler/scala/tools/nsc/ast/Trees.scala +++ b/src/compiler/scala/tools/nsc/ast/Trees.scala @@ -15,7 +15,7 @@ import scala.reflect.internal.Flags.PRESUPER import scala.reflect.internal.Flags.TRAIT import scala.compat.Platform.EOL -trait Trees extends reflect.internal.Trees { self: Global => +trait Trees extends scala.reflect.internal.Trees { self: Global => def treeLine(t: Tree): String = if (t.pos.isDefined && t.pos.isRange) t.pos.lineContent.drop(t.pos.column - 1).take(t.pos.end - t.pos.start + 1) @@ -48,12 +48,12 @@ trait Trees extends reflect.internal.Trees { self: Global => override def isType = definition.isType } - /** Array selection <qualifier> . <name> only used during erasure */ + /** Array selection `<qualifier> . <name>` only used during erasure */ case class SelectFromArray(qualifier: Tree, name: Name, erasure: Type) extends RefTree with TermTree - /** Derived value class injection (equivalent to: new C(arg) after easure); only used during erasure - * The class C is stored as the symbol of the tree node. + /** Derived value class injection (equivalent to: `new C(arg)` after erasure); only used during erasure. + * The class `C` is stored as a tree attachment. */ case class InjectDerivedValue(arg: Tree) extends SymTree diff --git a/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala b/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala index bf21899438..8c131850e9 100644 --- a/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala +++ b/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala @@ -280,14 +280,6 @@ self => /** whether a non-continuable syntax error has been seen */ private var lastErrorOffset : Int = -1 - object treeBuilder extends TreeBuilder { - val global: self.global.type = self.global - def freshName(prefix: String): Name = freshTermName(prefix) - def freshTermName(prefix: String): TermName = Parser.this.freshTermName(prefix) - def freshTypeName(prefix: String): TypeName = Parser.this.freshTypeName(prefix) - def o2p(offset: Int) = Parser.this.o2p(offset) - def r2p(start: Int, point: Int, end: Int) = Parser.this.r2p(start, point, end) - } import treeBuilder.{global => _, _} /** The types of the context bounds of type parameters of the surrounding class @@ -404,8 +396,7 @@ self => def mainParamType = AppliedTypeTree(Ident(tpnme.Array), List(Ident(tpnme.String))) def mainParameter = List(ValDef(Modifiers(Flags.PARAM), nme.argv, mainParamType, EmptyTree)) def mainSetArgv = List(ValDef(NoMods, nme.args, TypeTree(), Ident(nme.argv))) - def mainNew = makeNew(Nil, emptyValDef, stmts, ListOfNil, NoPosition, NoPosition) - def mainDef = DefDef(NoMods, nme.main, Nil, List(mainParameter), scalaDot(tpnme.Unit), Block(mainSetArgv, mainNew)) + def mainDef = DefDef(NoMods, nme.main, Nil, List(mainParameter), scalaDot(tpnme.Unit), Block(mainSetArgv, makeAnonymousNew(stmts))) // object Main def moduleName = newTermName(ScriptRunner scriptMain settings) diff --git a/src/compiler/scala/tools/nsc/ast/parser/SymbolicXMLBuilder.scala b/src/compiler/scala/tools/nsc/ast/parser/SymbolicXMLBuilder.scala index 146329183c..9466b7222d 100755 --- a/src/compiler/scala/tools/nsc/ast/parser/SymbolicXMLBuilder.scala +++ b/src/compiler/scala/tools/nsc/ast/parser/SymbolicXMLBuilder.scala @@ -7,11 +7,11 @@ package scala.tools.nsc package ast.parser import scala.collection.{ mutable, immutable } -import xml.{ EntityRef, Text } -import xml.XML.{ xmlns } +import scala.xml.{ EntityRef, Text } +import scala.xml.XML.{ xmlns } import symtab.Flags.MUTABLE import scala.reflect.internal.util.StringOps.splitWhere -import language.implicitConversions +import scala.language.implicitConversions /** This class builds instance of `Tree` that represent XML. * @@ -144,7 +144,7 @@ abstract class SymbolicXMLBuilder(p: Parsers#Parser, preserveWS: Boolean) { (buf map convertToTextPat).toList def parseAttribute(pos: Position, s: String): Tree = { - val ts = xml.Utility.parseAttributeValue(s) map { + val ts = scala.xml.Utility.parseAttributeValue(s) map { case Text(s) => text(pos, s) case EntityRef(s) => entityRef(pos, s) } diff --git a/src/compiler/scala/tools/nsc/ast/parser/Tokens.scala b/src/compiler/scala/tools/nsc/ast/parser/Tokens.scala index 7e7972f9dd..9ce74b2b17 100644 --- a/src/compiler/scala/tools/nsc/ast/parser/Tokens.scala +++ b/src/compiler/scala/tools/nsc/ast/parser/Tokens.scala @@ -6,7 +6,7 @@ package scala.tools.nsc package ast.parser -import annotation.switch +import scala.annotation.switch /** Common code between JavaTokens and Tokens. Not as much (and not as concrete) * as one might like because JavaTokens for no clear reason chose new numbers for diff --git a/src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala b/src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala index 1cd1b63691..c6a38f5be6 100644 --- a/src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala +++ b/src/compiler/scala/tools/nsc/ast/parser/TreeBuilder.scala @@ -199,6 +199,15 @@ abstract class TreeBuilder { } } + /** Creates a tree representing new Object { stats }. + * To make sure an anonymous subclass of Object is created, + * if there are no stats, a () is added. + */ + def makeAnonymousNew(stats: List[Tree]): Tree = { + val stats1 = if (stats.isEmpty) List(Literal(Constant(()))) else stats + makeNew(Nil, emptyValDef, stats1, ListOfNil, NoPosition, NoPosition) + } + /** Create positioned tree representing an object creation <new parents { stats } * @param npos the position of the new * @param cpos the position of the anonymous class starting with parents diff --git a/src/compiler/scala/tools/nsc/backend/icode/BasicBlocks.scala b/src/compiler/scala/tools/nsc/backend/icode/BasicBlocks.scala index 486a43614b..06492e4ac6 100644 --- a/src/compiler/scala/tools/nsc/backend/icode/BasicBlocks.scala +++ b/src/compiler/scala/tools/nsc/backend/icode/BasicBlocks.scala @@ -11,7 +11,7 @@ import scala.collection.{ mutable, immutable } import mutable.{ ListBuffer, ArrayBuffer } import scala.reflect.internal.util.{ Position, NoPosition } import backend.icode.analysis.ProgramPoint -import language.postfixOps +import scala.language.postfixOps trait BasicBlocks { self: ICodes => diff --git a/src/compiler/scala/tools/nsc/backend/icode/GenICode.scala b/src/compiler/scala/tools/nsc/backend/icode/GenICode.scala index 142aacfdf7..147e0eb23c 100644 --- a/src/compiler/scala/tools/nsc/backend/icode/GenICode.scala +++ b/src/compiler/scala/tools/nsc/backend/icode/GenICode.scala @@ -13,7 +13,7 @@ import scala.collection.mutable.{ ListBuffer, Buffer } import scala.tools.nsc.symtab._ import scala.annotation.switch import PartialFunction._ -import language.postfixOps +import scala.language.postfixOps /** This class ... * @@ -128,7 +128,6 @@ abstract class GenICode extends SubComponent { if (staticfield != NoSymbol) { // in companion object accessors to @static fields, we access the static field directly val hostClass = m.symbol.owner.companionClass - if (m.symbol.isGetter) { ctx1.bb.emit(LOAD_FIELD(staticfield, true) setHostClass hostClass, tree.pos) ctx1.bb.closeWith(RETURN(m.returnType)) @@ -1000,14 +999,16 @@ abstract class GenICode extends SubComponent { fun match { case Select(qual, _) => val qualSym = findHostClass(qual.tpe, sym) - - if (qualSym == ArrayClass) cm setTargetTypeKind toTypeKind(qual.tpe) - else cm setHostClass qualSym - - log( - if (qualSym == ArrayClass) "Stored target type kind " + toTypeKind(qual.tpe) + " for " + sym.fullName - else s"Set more precise host class for ${sym.fullName} hostClass: $qualSym" - ) + if (qualSym == ArrayClass) { + val kind = toTypeKind(qual.tpe) + cm setTargetTypeKind kind + log(s"Stored target type kind for {$sym.fullName} as $kind") + } + else { + cm setHostClass qualSym + if (qual.tpe.typeSymbol != qualSym) + log(s"Precisified host class for $sym from ${qual.tpe.typeSymbol.fullName} to ${qualSym.fullName}") + } case _ => } ctx1.bb.emit(cm, tree.pos) diff --git a/src/compiler/scala/tools/nsc/backend/icode/Linearizers.scala b/src/compiler/scala/tools/nsc/backend/icode/Linearizers.scala index 1c5c9224f2..4739750daa 100644 --- a/src/compiler/scala/tools/nsc/backend/icode/Linearizers.scala +++ b/src/compiler/scala/tools/nsc/backend/icode/Linearizers.scala @@ -231,7 +231,7 @@ trait Linearizers { val handlersByCovered = m.exh.groupBy(_.covered) // number of basic blocks covered by the entire try-catch expression - def size(covered: collection.immutable.Set[BasicBlock]) = { + def size(covered: scala.collection.immutable.Set[BasicBlock]) = { val hs = handlersByCovered(covered) covered.size + (hs :\ 0)((h, s) => h.blocks.length + s) } diff --git a/src/compiler/scala/tools/nsc/backend/icode/Opcodes.scala b/src/compiler/scala/tools/nsc/backend/icode/Opcodes.scala index 1fcb406e96..63f0ab683b 100644 --- a/src/compiler/scala/tools/nsc/backend/icode/Opcodes.scala +++ b/src/compiler/scala/tools/nsc/backend/icode/Opcodes.scala @@ -128,7 +128,7 @@ trait Opcodes { self: ICodes => } /** Clone this instruction. */ - override def clone: Instruction = + override def clone(): Instruction = super.clone.asInstanceOf[Instruction] } diff --git a/src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala b/src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala index d1d8e4a385..df158a29ea 100644 --- a/src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala +++ b/src/compiler/scala/tools/nsc/backend/icode/analysis/CopyPropagation.scala @@ -200,7 +200,7 @@ abstract class CopyPropagation { in(b) = lattice.bottom out(b) = lattice.bottom assert(out.contains(b), out) - log("Added point: " + b) + debuglog("CopyAnalysis added point: " + b) } m.exh foreach { e => in(e.startBlock) = new copyLattice.State(copyLattice.emptyBinding, copyLattice.exceptionHandlerStack); @@ -531,11 +531,11 @@ abstract class CopyPropagation { case 0 => () case 1 if ctor.tpe.paramTypes.head == ctor.owner.rawowner.tpe => // it's an unused outer - log("considering unused outer at position 0 in " + ctor.tpe.paramTypes) + debuglog("considering unused outer at position 0 in " + ctor.tpe.paramTypes) paramTypes = paramTypes.tail values = values.tail case _ => - log("giving up on " + ctor + "(diff: " + diff + ")") + debuglog("giving up on " + ctor + "(diff: " + diff + ")") return bindings } @@ -566,7 +566,7 @@ abstract class CopyPropagation { method.blocks map { b => "\nIN(%s):\t Bindings: %s".format(b.label, in(b).bindings) + "\nIN(%s):\t Stack: %s".format(b.label, in(b).stack) - } + } ).mkString } /* class CopyAnalysis */ diff --git a/src/compiler/scala/tools/nsc/backend/icode/analysis/TypeFlowAnalysis.scala b/src/compiler/scala/tools/nsc/backend/icode/analysis/TypeFlowAnalysis.scala index 6bd3ac5791..31c2077097 100644 --- a/src/compiler/scala/tools/nsc/backend/icode/analysis/TypeFlowAnalysis.scala +++ b/src/compiler/scala/tools/nsc/backend/icode/analysis/TypeFlowAnalysis.scala @@ -640,7 +640,7 @@ abstract class TypeFlowAnalysis { For each of them, its `lastInstruction` (after which no more typeflows are needed) is found. */ - def reinit(m: icodes.IMethod, staleOut: List[BasicBlock], inlined: collection.Set[BasicBlock], staleIn: collection.Set[BasicBlock]) { + def reinit(m: icodes.IMethod, staleOut: List[BasicBlock], inlined: scala.collection.Set[BasicBlock], staleIn: scala.collection.Set[BasicBlock]) { if (this.method == null || this.method.symbol != m.symbol) { init(m) return @@ -691,7 +691,7 @@ abstract class TypeFlowAnalysis { bs foreach enqueue } - private def blankOut(blocks: collection.Set[BasicBlock]) { + private def blankOut(blocks: scala.collection.Set[BasicBlock]) { blocks foreach { b => in(b) = typeFlowLattice.bottom out(b) = typeFlowLattice.bottom diff --git a/src/compiler/scala/tools/nsc/backend/jvm/BytecodeWriters.scala b/src/compiler/scala/tools/nsc/backend/jvm/BytecodeWriters.scala index b9d8fb18a1..086327934b 100644 --- a/src/compiler/scala/tools/nsc/backend/jvm/BytecodeWriters.scala +++ b/src/compiler/scala/tools/nsc/backend/jvm/BytecodeWriters.scala @@ -12,7 +12,7 @@ import scala.tools.nsc.util.ScalaClassLoader import scala.tools.util.JavapClass import java.util.jar.{ JarEntry, JarOutputStream, Attributes } import Attributes.Name -import language.postfixOps +import scala.language.postfixOps /** For the last mile: turning generated bytecode in memory into * something you can use. Has implementations for writing to class diff --git a/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala b/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala index 2e0ac727f9..99d019ecd2 100644 --- a/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala +++ b/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala @@ -154,8 +154,10 @@ abstract class GenASM extends SubComponent with BytecodeWriters { inform("[running phase " + name + " on icode]") if (settings.Xdce.value) - for ((sym, cls) <- icodes.classes if inliner.isClosureClass(sym) && !deadCode.liveClosures(sym)) + for ((sym, cls) <- icodes.classes if inliner.isClosureClass(sym) && !deadCode.liveClosures(sym)) { + log(s"Optimizer eliminated ${sym.fullNameString}") icodes.classes -= sym + } // For predictably ordered error messages. var sortedClasses = classes.values.toList sortBy ("" + _.symbol.fullName) @@ -2042,12 +2044,12 @@ abstract class GenASM extends SubComponent with BytecodeWriters { var isModuleInitialized = false - val labels: collection.Map[BasicBlock, asm.Label] = mutable.HashMap(linearization map (_ -> new asm.Label()) : _*) + val labels: scala.collection.Map[BasicBlock, asm.Label] = mutable.HashMap(linearization map (_ -> new asm.Label()) : _*) val onePastLast = new asm.Label // token for the mythical instruction past the last instruction in the method being emitted // maps a BasicBlock b to the Label that corresponds to b's successor in the linearization. The last BasicBlock is mapped to the onePastLast label. - val linNext: collection.Map[BasicBlock, asm.Label] = { + val linNext: scala.collection.Map[BasicBlock, asm.Label] = { val result = mutable.HashMap.empty[BasicBlock, asm.Label] var rest = linearization var prev = rest.head @@ -2225,7 +2227,7 @@ abstract class GenASM extends SubComponent with BytecodeWriters { } } - def getMerged(): collection.Map[Local, List[Interval]] = { + def getMerged(): scala.collection.Map[Local, List[Interval]] = { // TODO should but isn't: unbalanced start(s) of scope(s) val shouldBeEmpty = pending filter { p => val Pair(k, st) = p; st.nonEmpty }; val merged = mutable.Map[Local, List[Interval]]() diff --git a/src/compiler/scala/tools/nsc/backend/jvm/GenJVM.scala b/src/compiler/scala/tools/nsc/backend/jvm/GenJVM.scala index aa857235b0..98e55bf435 100644 --- a/src/compiler/scala/tools/nsc/backend/jvm/GenJVM.scala +++ b/src/compiler/scala/tools/nsc/backend/jvm/GenJVM.scala @@ -18,7 +18,7 @@ import JAccessFlags._ import JObjectType.{ JAVA_LANG_STRING, JAVA_LANG_OBJECT } import java.util.jar.{ JarEntry, JarOutputStream } import scala.tools.nsc.io.AbstractFile -import language.postfixOps +import scala.language.postfixOps /** This class ... * @@ -122,8 +122,10 @@ abstract class GenJVM extends SubComponent with GenJVMUtil with GenAndroid with inform("[running phase " + name + " on icode]") if (settings.Xdce.value) - for ((sym, cls) <- icodes.classes if inliner.isClosureClass(sym) && !deadCode.liveClosures(sym)) + for ((sym, cls) <- icodes.classes if inliner.isClosureClass(sym) && !deadCode.liveClosures(sym)) { + log(s"Optimizer eliminated ${sym.fullNameString}") icodes.classes -= sym + } // For predictably ordered error messages. val sortedClasses = classes.values.toList sortBy ("" + _.symbol.fullName) diff --git a/src/compiler/scala/tools/nsc/backend/msil/GenMSIL.scala b/src/compiler/scala/tools/nsc/backend/msil/GenMSIL.scala index 5a0c30bdb7..242b60c769 100644 --- a/src/compiler/scala/tools/nsc/backend/msil/GenMSIL.scala +++ b/src/compiler/scala/tools/nsc/backend/msil/GenMSIL.scala @@ -15,7 +15,7 @@ import scala.tools.nsc.symtab._ import ch.epfl.lamp.compiler.msil.{Type => MsilType, _} import ch.epfl.lamp.compiler.msil.emit._ import ch.epfl.lamp.compiler.msil.util.PECustomMod -import language.postfixOps +import scala.language.postfixOps abstract class GenMSIL extends SubComponent { import global._ diff --git a/src/compiler/scala/tools/nsc/backend/opt/ClosureElimination.scala b/src/compiler/scala/tools/nsc/backend/opt/ClosureElimination.scala index 7772ccbdd5..eb2da72401 100644 --- a/src/compiler/scala/tools/nsc/backend/opt/ClosureElimination.scala +++ b/src/compiler/scala/tools/nsc/backend/opt/ClosureElimination.scala @@ -35,7 +35,7 @@ abstract class ClosureElimination extends SubComponent { case (STORE_LOCAL(x), LOAD_LOCAL(y)) if (x == y) => var liveOut = liveness.out(bb) if (!liveOut(x)) { - log("store/load to a dead local? " + x) + debuglog("store/load to a dead local? " + x) val instrs = bb.getArray var idx = instrs.length - 1 while (idx > 0 && (instrs(idx) ne i2)) { @@ -43,7 +43,7 @@ abstract class ClosureElimination extends SubComponent { idx -= 1 } if (!liveOut(x)) { - log("removing dead store/load " + x) + log("Removing dead store/load of " + x.sym.initialize.defString) Some(Nil) } else None } else @@ -84,6 +84,7 @@ abstract class ClosureElimination extends SubComponent { */ class ClosureElim { def analyzeClass(cls: IClass): Unit = if (settings.Xcloselim.value) { + log(s"Analyzing ${cls.methods.size} methods in $cls.") cls.methods foreach { m => analyzeMethod(m) peephole(m) @@ -95,7 +96,6 @@ abstract class ClosureElimination extends SubComponent { /* Some embryonic copy propagation. */ def analyzeMethod(m: IMethod): Unit = try {if (m.hasCode) { - log("Analyzing " + m) cpp.init(m) cpp.run @@ -110,23 +110,20 @@ abstract class ClosureElimination extends SubComponent { t match { case Deref(This) | Const(_) => bb.replaceInstruction(i, valueToInstruction(t)); - log("replaced " + i + " with " + t) + debuglog(s"replaced $i with $t") case _ => - bb.replaceInstruction(i, LOAD_LOCAL(info.getAlias(l))) - log("replaced " + i + " with " + info.getAlias(l)) - + val t = info.getAlias(l) + bb.replaceInstruction(i, LOAD_LOCAL(t)) + debuglog(s"replaced $i with $t") } case LOAD_FIELD(f, false) /* if accessible(f, m.symbol) */ => def replaceFieldAccess(r: Record) { val Record(cls, bindings) = r - info.getFieldNonRecordValue(r, f) match { - case Some(v) => - bb.replaceInstruction(i, - DROP(REFERENCE(cls)) :: valueToInstruction(v) :: Nil); - log("Replaced " + i + " with " + info.getFieldNonRecordValue(r, f)); - case None => + info.getFieldNonRecordValue(r, f) foreach { v => + bb.replaceInstruction(i, DROP(REFERENCE(cls)) :: valueToInstruction(v) :: Nil) + debuglog(s"replaced $i with $v") } } @@ -157,14 +154,14 @@ abstract class ClosureElimination extends SubComponent { value match { case Boxed(LocalVar(loc2)) => bb.replaceInstruction(i, DROP(icodes.ObjectReference) :: valueToInstruction(info.getBinding(loc2)) :: Nil) - log("replaced " + i + " with " + info.getBinding(loc2)) + debuglog("replaced " + i + " with " + info.getBinding(loc2)) case _ => () } case Boxed(LocalVar(loc1)) :: _ => val loc2 = info.getAlias(loc1) bb.replaceInstruction(i, DROP(icodes.ObjectReference) :: valueToInstruction(Deref(LocalVar(loc2))) :: Nil) - log("replaced " + i + " with " + LocalVar(loc2)) + debuglog("replaced " + i + " with " + LocalVar(loc2)) case _ => } diff --git a/src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala b/src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala index fd949576e1..36a5d61cfb 100644 --- a/src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala +++ b/src/compiler/scala/tools/nsc/backend/opt/DeadCodeElimination.scala @@ -44,6 +44,7 @@ abstract class DeadCodeElimination extends SubComponent { class DeadCode { def analyzeClass(cls: IClass) { + log(s"Analyzing ${cls.methods.size} methods in $cls.") cls.methods.foreach { m => this.method = m dieCodeDie(m) @@ -73,7 +74,7 @@ abstract class DeadCodeElimination extends SubComponent { def dieCodeDie(m: IMethod) { if (m.hasCode) { - log("dead code elimination on " + m); + debuglog("dead code elimination on " + m); dropOf.clear() m.code.blocks.clear() accessedLocals = m.params.reverse @@ -82,8 +83,10 @@ abstract class DeadCodeElimination extends SubComponent { mark sweep(m) accessedLocals = accessedLocals.distinct - if ((m.locals diff accessedLocals).nonEmpty) { - log("Removed dead locals: " + (m.locals diff accessedLocals)) + val diff = m.locals diff accessedLocals + if (diff.nonEmpty) { + val msg = diff.map(_.sym.name)mkString(", ") + log(s"Removed ${diff.size} dead locals: $msg") m.locals = accessedLocals.reverse } } @@ -126,7 +129,7 @@ abstract class DeadCodeElimination extends SubComponent { case RETURN(_) | JUMP(_) | CJUMP(_, _, _, _) | CZJUMP(_, _, _, _) | STORE_FIELD(_, _) | THROW(_) | LOAD_ARRAY_ITEM(_) | STORE_ARRAY_ITEM(_) | SCOPE_ENTER(_) | SCOPE_EXIT(_) | STORE_THIS(_) | LOAD_EXCEPTION(_) | SWITCH(_, _) | MONITOR_ENTER() | MONITOR_EXIT() => worklist += ((bb, idx)) - case CALL_METHOD(m1, _) if isSideEffecting(m1) => worklist += ((bb, idx)); log("marking " + m1) + case CALL_METHOD(m1, _) if isSideEffecting(m1) => worklist += ((bb, idx)); debuglog("marking " + m1) case CALL_METHOD(m1, SuperCall(_)) => worklist += ((bb, idx)) // super calls to constructor case DROP(_) => @@ -173,7 +176,7 @@ abstract class DeadCodeElimination extends SubComponent { instr match { case LOAD_LOCAL(l1) => for ((l2, bb1, idx1) <- defs((bb, idx)) if l1 == l2; if !useful(bb1)(idx1)) { - log("\tAdding " + bb1(idx1)) + debuglog("\tAdding " + bb1(idx1)) worklist += ((bb1, idx1)) } @@ -197,7 +200,7 @@ abstract class DeadCodeElimination extends SubComponent { case _ => for ((bb1, idx1) <- rdef.findDefs(bb, idx, instr.consumed) if !useful(bb1)(idx1)) { - log("\tAdding " + bb1(idx1)) + debuglog("\tAdding " + bb1(idx1)) worklist += ((bb1, idx1)) } } @@ -232,7 +235,7 @@ abstract class DeadCodeElimination extends SubComponent { } else { i match { case NEW(REFERENCE(sym)) => - log("skipped object creation: " + sym + "inside " + m) + log(s"Eliminated instantation of $sym inside $m") case _ => () } debuglog("Skipped: bb_" + bb + ": " + idx + "( " + i + ")") @@ -240,7 +243,7 @@ abstract class DeadCodeElimination extends SubComponent { } if (bb.nonEmpty) bb.close - else log("empty block encountered") + else log(s"empty block encountered in $m") } } @@ -252,7 +255,7 @@ abstract class DeadCodeElimination extends SubComponent { foreachWithIndex(bb.toList) { (i, idx) => if (!useful(bb)(idx)) { foreachWithIndex(i.consumedTypes.reverse) { (consumedType, depth) => - log("Finding definitions of: " + i + "\n\t" + consumedType + " at depth: " + depth) + debuglog("Finding definitions of: " + i + "\n\t" + consumedType + " at depth: " + depth) val defs = rdef.findDefs(bb, idx, 1, depth) for (d <- defs) { val (bb, idx) = d diff --git a/src/compiler/scala/tools/nsc/backend/opt/InlineExceptionHandlers.scala b/src/compiler/scala/tools/nsc/backend/opt/InlineExceptionHandlers.scala index f1f597322e..98120f0614 100644 --- a/src/compiler/scala/tools/nsc/backend/opt/InlineExceptionHandlers.scala +++ b/src/compiler/scala/tools/nsc/backend/opt/InlineExceptionHandlers.scala @@ -93,10 +93,9 @@ abstract class InlineExceptionHandlers extends SubComponent { val startTime = System.currentTimeMillis currentClass = c - log("Starting " + c) + debuglog("Starting InlineExceptionHandlers on " + c) c.methods foreach applyMethod - - log("Finished " + c + "... " + (System.currentTimeMillis - startTime) + "ms") + debuglog("Finished InlineExceptionHandlers on " + c + "... " + (System.currentTimeMillis - startTime) + "ms") currentClass = null } diff --git a/src/compiler/scala/tools/nsc/backend/opt/Inliners.scala b/src/compiler/scala/tools/nsc/backend/opt/Inliners.scala index 5828a6200e..5c2c2a37e6 100644 --- a/src/compiler/scala/tools/nsc/backend/opt/Inliners.scala +++ b/src/compiler/scala/tools/nsc/backend/opt/Inliners.scala @@ -44,7 +44,7 @@ abstract class Inliners extends SubComponent { import definitions.{ NullClass, NothingClass, ObjectClass, PredefModule, RuntimePackage, ScalaInlineClass, ScalaNoInlineClass, - isFunctionType + isFunctionType, isByNameParamType } val phaseName = "inliner" @@ -143,7 +143,6 @@ abstract class Inliners extends SubComponent { } def isBottomType(sym: Symbol) = sym == NullClass || sym == NothingClass - def posToStr(pos: scala.reflect.internal.util.Position) = if (pos.isDefined) pos.point.toString else "<nopos>" /** Is the given class a closure? */ def isClosureClass(cls: Symbol): Boolean = @@ -194,6 +193,27 @@ abstract class Inliners extends SubComponent { private var currentIClazz: IClass = _ private def warn(pos: Position, msg: String) = currentIClazz.cunit.inlinerWarning(pos, msg) + private def ownedName(sym: Symbol): String = exitingUncurry { + val count = ( + if (!sym.isMethod) 1 + else if (sym.owner.isAnonymousFunction) 3 + else 2 + ) + (sym.ownerChain take count filterNot (_.isPackageClass)).reverseMap(_.nameString).mkString(".") + } + private def inlineLog(what: String, main: => String, comment: => String) { + def cstr = comment match { + case "" => "" + case str => " // " + str + } + val width = if (currentIClazz eq null) 40 else currentIClazz.symbol.enclosingPackage.fullName.length + 25 + val fmt = "%8s %-" + width + "s" + cstr + log(fmt.format(what, main)) + } + private def inlineLog(what: String, main: Symbol, comment: => String) { + inlineLog(what, ownedName(main), comment) + } + val recentTFAs = mutable.Map.empty[Symbol, Tuple2[Boolean, analysis.MethodTFA]] private def getRecentTFA(incm: IMethod, forceable: Boolean): (Boolean, analysis.MethodTFA) = { @@ -244,14 +264,15 @@ abstract class Inliners extends SubComponent { def analyzeClass(cls: IClass): Unit = if (settings.inline.value) { - debuglog("Analyzing " + cls) + inlineLog("class", s"${cls.symbol.decodedName}", s"analyzing ${cls.methods.size} methods in $cls") this.currentIClazz = cls val ms = cls.methods sorted imethodOrdering ms foreach { im => - if(hasInline(im.symbol)) { - log("Not inlining into " + im.symbol.originalName.decode + " because it is marked @inline.") - } else if(im.hasCode && !im.symbol.isBridge) { + if (hasInline(im.symbol)) { + inlineLog("skip", im.symbol, "no inlining into @inline methods") + } + else if(im.hasCode && !im.symbol.isBridge) { analyzeMethod(im) } } @@ -296,6 +317,8 @@ abstract class Inliners extends SubComponent { * */ def analyzeMethod(m: IMethod): Unit = { // m.normalize + if (settings.debug.value) + inlineLog("caller", ownedName(m.symbol), "in " + m.symbol.owner.fullName) var sizeBeforeInlining = m.code.blockCount var instrBeforeInlining = m.code.instructionCount @@ -306,8 +329,8 @@ abstract class Inliners extends SubComponent { val fresh = mutable.HashMap.empty[String, Int] withDefaultValue 0 // how many times have we already inlined this method here? val inlinedMethodCount = mutable.HashMap.empty[Symbol, Int] withDefaultValue 0 - val caller = new IMethodInfo(m) + def analyzeMessage = s"Analyzing ${caller.length} blocks of $m for inlining sites." def preInline(isFirstRound: Boolean): Int = { val inputBlocks = caller.m.linearizedBlocks() @@ -354,15 +377,17 @@ abstract class Inliners extends SubComponent { */ def analyzeInc(i: CALL_METHOD, bb: BasicBlock, receiver: Symbol, stackLength: Int, concreteMethod: Symbol): Boolean = { assert(bb.toList contains i, "Candidate callsite does not belong to BasicBlock.") - - var inlined = false val shouldWarn = hasInline(i.method) - def warnNoInline(reason: String) = { - if (shouldWarn) { - warn(i.pos, "Could not inline required method %s because %s.".format(i.method.originalName.decode, reason)) - } - } + def warnNoInline(reason: String): Boolean = { + def msg = "Could not inline required method %s because %s.".format(i.method.originalName.decode, reason) + if (settings.debug.value) + inlineLog("fail", i.method.fullName, reason) + if (shouldWarn) + warn(i.pos, msg) + + false + } var isAvailable = icodes available concreteMethod.enclClass @@ -378,92 +403,69 @@ abstract class Inliners extends SubComponent { isAvailable = icodes.load(concreteMethod.enclClass) } - def isCandidate = ( - isClosureClass(receiver) - || concreteMethod.isEffectivelyFinal - || receiver.isEffectivelyFinal - ) + def isCandidate = ( + isClosureClass(receiver) + || concreteMethod.isEffectivelyFinal + || receiver.isEffectivelyFinal + ) - def isApply = concreteMethod.name == nme.apply + def isApply = concreteMethod.name == nme.apply - def isCountable = !( - isClosureClass(receiver) - || isApply - || isMonadicMethod(concreteMethod) - || receiver.enclosingPackage == definitions.RuntimePackage - ) // only count non-closures + def isCountable = !( + isClosureClass(receiver) + || isApply + || isMonadicMethod(concreteMethod) + || receiver.enclosingPackage == definitions.RuntimePackage + ) // only count non-closures debuglog("Treating " + i + "\n\treceiver: " + receiver + "\n\ticodes.available: " + isAvailable + "\n\tconcreteMethod.isEffectivelyFinal: " + concreteMethod.isEffectivelyFinal) - if (isAvailable && isCandidate) { - lookupIMethod(concreteMethod, receiver) match { - - case Some(callee) if callee.hasCode => - val inc = new IMethodInfo(callee) - val pair = new CallerCalleeInfo(caller, inc, fresh, inlinedMethodCount) - - if(inc.hasHandlers && (stackLength == -1)) { - // no inlining is done, yet don't warn about it, stackLength == -1 indicates we're trying to inlineWithoutTFA. - // Shortly, a TFA will be computed and an error message reported if indeed inlining not possible. - return false - } - - (pair isStampedForInlining stackLength) match { - - case inlInfo if inlInfo.isSafe => - - (inlInfo: @unchecked) match { - - case FeasibleInline(accessNeeded, toBecomePublic) => - for(f <- toBecomePublic) { - debuglog("Making public (synthetic) field-symbol: " + f) - f setFlag Flags.notPRIVATE - f setFlag Flags.notPROTECTED - } - // only add to `knownSafe` after all `toBecomePublic` fields actually made public. - if(accessNeeded == NonPublicRefs.Public) { tfa.knownSafe += inc.sym } - - case InlineableAtThisCaller => () - - } - - retry = true - inlined = true - if (isCountable) { count += 1 }; + if (!isCandidate) warnNoInline("it can be overridden") + else if (!isAvailable) warnNoInline("bytecode unavailable") + else lookupIMethod(concreteMethod, receiver) filter (callee => callee.hasCode || warnNoInline("callee has no code")) exists { callee => + val inc = new IMethodInfo(callee) + val pair = new CallerCalleeInfo(caller, inc, fresh, inlinedMethodCount) - pair.doInline(bb, i) - if (!pair.isInlineForced || inc.isMonadic) { caller.inlinedCalls += 1 }; - inlinedMethodCount(inc.sym) += 1 - - // Remove the caller from the cache (this inlining might have changed its calls-private relation). - usesNonPublics -= m - recentTFAs -= m.symbol - - - case DontInlineHere(msg) => - debuglog("inline failed, reason: " + msg) - warnNoInline(msg) - - case NeverSafeToInline => () - } - - case Some(callee) => - assert(!callee.hasCode, "The case clause right before this one should have handled this case.") - warnNoInline("callee (" + callee + ") has no code") - () + if (inc.hasHandlers && (stackLength == -1)) { + // no inlining is done, yet don't warn about it, stackLength == -1 indicates we're trying to inlineWithoutTFA. + // Shortly, a TFA will be computed and an error message reported if indeed inlining not possible. + false + } + else { + val isSafe = pair isStampedForInlining stackLength match { + case DontInlineHere(msg) => warnNoInline(msg) + case NeverSafeToInline => false + case InlineableAtThisCaller => true + case inl @ FeasibleInline(_, _) if !inl.isSafe => false + case FeasibleInline(required, toPublicize) => + for (f <- toPublicize) { + inlineLog("access", f, "making public") + f setFlag Flags.notPRIVATE + f setFlag Flags.notPROTECTED + } + // only add to `knownSafe` after all `toPublicize` fields actually made public. + if (required == NonPublicRefs.Public) + tfa.knownSafe += inc.sym - case None => - warnNoInline("bytecode was not available") - debuglog("could not find icode\n\treceiver: " + receiver + "\n\tmethod: " + concreteMethod) + true + } + isSafe && { + retry = true + if (isCountable) count += 1 + pair.doInline(bb, i) + if (!pair.isInlineForced || inc.isMonadic) caller.inlinedCalls += 1 + inlinedMethodCount(inc.sym) += 1 + + // Remove the caller from the cache (this inlining might have changed its calls-private relation). + usesNonPublics -= m + recentTFAs -= m.symbol + true + } } - } else { - warnNoInline(if(!isAvailable) "bytecode was not available" else "it can be overridden") } - - inlined } /* Pre-inlining consists in invoking the usual inlining subroutine with (receiver class, concrete method) pairs as input @@ -485,7 +487,7 @@ abstract class Inliners extends SubComponent { do { retry = false - log("Analyzing " + m + " count " + count + " with " + caller.length + " blocks") + debuglog(analyzeMessage) /* it's important not to inline in unreachable basic blocks. linearizedBlocks() returns only reachable ones. */ tfa.callerLin = caller.m.linearizedBlocks() @@ -567,9 +569,16 @@ abstract class Inliners extends SubComponent { m.normalize if (sizeBeforeInlining > 0) { val instrAfterInlining = m.code.instructionCount - val prefix = if ((instrAfterInlining > 2 * instrBeforeInlining) && (instrAfterInlining > 200)) " !! " else "" - log(prefix + " %s blocks before inlining: %d (%d) after: %d (%d)".format( - m.symbol.fullName, sizeBeforeInlining, instrBeforeInlining, m.code.blockCount, instrAfterInlining)) + val prefix = if ((instrAfterInlining > 2 * instrBeforeInlining) && (instrAfterInlining > 200)) "!!" else "" + val inlinings = caller.inlinedCalls + if (inlinings > 0) { + val s1 = s"instructions $instrBeforeInlining -> $instrAfterInlining" + val s2 = if (sizeBeforeInlining == m.code.blockCount) "" else s", blocks $sizeBeforeInlining -> ${m.code.blockCount}" + val callees = inlinedMethodCount.toList map { case (k, v) => k.fullNameString + ( if (v == 1) "" else "/" + v ) } + + inlineLog("inlined", m.symbol.fullName, callees.sorted.mkString(inlinings + " inlined: ", ", ", "")) + inlineLog("<<tldr>>", m.symbol.fullName, s"${m.symbol.nameString}: $s1$s2") + } } } @@ -589,6 +598,8 @@ abstract class Inliners extends SubComponent { } class IMethodInfo(val m: IMethod) { + override def toString = m.toString + val sym = m.symbol val name = sym.name def owner = sym.owner @@ -608,10 +619,11 @@ abstract class Inliners extends SubComponent { def instructions = m.code.instructions // def linearized = linearizer linearize m - def isSmall = (length <= SMALL_METHOD_SIZE) && blocks(0).length < 10 - def isLarge = length > MAX_INLINE_SIZE - def isRecursive = m.recursive - def hasHandlers = handlers.nonEmpty || m.bytecodeHasEHs + def isSmall = (length <= SMALL_METHOD_SIZE) && blocks(0).length < 10 + def isLarge = length > MAX_INLINE_SIZE + def isRecursive = m.recursive + def hasHandlers = handlers.nonEmpty || m.bytecodeHasEHs + def hasClosureParam = paramTypes exists (tp => isByNameParamType(tp) || isFunctionType(tp)) def isSynchronized = sym.hasFlag(Flags.SYNCHRONIZED) def hasNonFinalizerHandler = handlers exists { @@ -661,9 +673,9 @@ abstract class Inliners extends SubComponent { * * TODO handle more robustly the case of a trait var changed at the source-level from public to private[this] * (eg by having ICodeReader use unpickler, see SI-5442). - + DISABLED - + def potentiallyPublicized(f: Symbol): Boolean = { (m.sourceFile eq NoSourceFile) && f.name.containsChar('$') } @@ -687,7 +699,7 @@ abstract class Inliners extends SubComponent { val i = iter.next() getAccess(i) match { case Private => - log("instruction " + i + " requires private access.") + inlineLog("access", s"instruction $i requires private access", "pos=" + i.pos) toBecomePublic = Nil seen = Private case Protected => seen = Protected @@ -734,7 +746,7 @@ abstract class Inliners extends SubComponent { toBecomePublic: List[Symbol] ) - final class CallerCalleeInfo(val caller: IMethodInfo, val inc: IMethodInfo, fresh: mutable.Map[String, Int], inlinedMethodCount: collection.Map[Symbol, Int]) { + final class CallerCalleeInfo(val caller: IMethodInfo, val inc: IMethodInfo, fresh: mutable.Map[String, Int], inlinedMethodCount: scala.collection.Map[Symbol, Int]) { assert(!caller.isBridge && inc.m.hasCode, "A guard in Inliner.analyzeClass() should have prevented from getting here.") @@ -764,11 +776,10 @@ abstract class Inliners extends SubComponent { tfa.warnIfInlineFails.remove(instr) val targetPos = instr.pos - log("Inlining " + inc.m + " in " + caller.m + " at pos: " + posToStr(targetPos)) def blockEmit(i: Instruction) = block.emit(i, targetPos) def newLocal(baseName: String, kind: TypeKind) = - new Local(caller.sym.newVariable(freshName(baseName), targetPos), kind, false) + new Local(caller.sym.newVariable(freshName(baseName), targetPos) setInfo kind.toType, kind, false) val (hasRETURN, a) = getRecentTFA(inc.m, isInlineForced) @@ -955,6 +966,7 @@ abstract class Inliners extends SubComponent { if(reasonWhyNever != null) { tfa.knownNever += inc.sym + inlineLog("never", inc.sym, reasonWhyNever) // next time around NeverSafeToInline is returned, thus skipping (duplicate) msg, this is intended. return DontInlineHere(inc.m + " " + reasonWhyNever) } @@ -977,10 +989,15 @@ abstract class Inliners extends SubComponent { * As a result of (b), some synthetic private members can be chosen to become public. */ - if(!isInlineForced && !isScoreOK) { + val score = inlinerScore + val scoreStr = if (score > 0) "+" + score else "" + score + val what = if (score > 0) "ok to" else "don't" + inlineLog(scoreStr, inc.m.symbol, s"$what inline into ${ownedName(caller.m.symbol)}") + + if (!isInlineForced && score <= 0) { // During inlining retry, a previous caller-callee pair that scored low may pass. // Thus, adding the callee to tfa.knownUnsafe isn't warranted. - return DontInlineHere("too low score (heuristics)") + return DontInlineHere(s"inliner heuristic") } if(inc.hasHandlers && (stackLength > inc.minimumStack)) { @@ -999,7 +1016,9 @@ abstract class Inliners extends SubComponent { val accReq = inc.accessRequirements if(!canAccess(accReq.accessNeeded)) { tfa.knownUnsafe += inc.sym - return DontInlineHere("access level required by callee not matched by caller") + val msg = "access level required by callee not matched by caller" + inlineLog("fail", inc.sym, msg) + return DontInlineHere(msg) } FeasibleInline(accReq.accessNeeded, accReq.toBecomePublic) @@ -1021,9 +1040,7 @@ abstract class Inliners extends SubComponent { * - it's good to inline closures functions. * - it's bad (useless) to inline inside bridge methods */ - def isScoreOK: Boolean = { - debuglog("shouldInline: " + caller.m + " , callee:" + inc.m) - + def inlinerScore: Int = { var score = 0 // better not inline inside closures, but hope that the closure itself is repeatedly inlined @@ -1031,10 +1048,11 @@ abstract class Inliners extends SubComponent { else if (caller.inlinedCalls < 1) score -= 1 // only monadic methods can trigger the first inline if (inc.isSmall) score += 1; + // if (inc.hasClosureParam) score += 2 if (inc.isLarge) score -= 1; if (caller.isSmall && isLargeSum) { score -= 1 - debuglog("shouldInline: score decreased to " + score + " because small " + caller + " would become large") + debuglog(s"inliner score decreased to $score because small caller $caller would become large") } if (inc.isMonadic) score += 3 @@ -1042,10 +1060,7 @@ abstract class Inliners extends SubComponent { if (inc.isInClosure) score += 2; if (inlinedMethodCount(inc.sym) > 2) score -= 2; - - log("shouldInline(" + inc.m + ") score: " + score) - - score > 0 + score } } diff --git a/src/compiler/scala/tools/nsc/dependencies/Changes.scala b/src/compiler/scala/tools/nsc/dependencies/Changes.scala index 176c00c025..7f5f412a20 100644 --- a/src/compiler/scala/tools/nsc/dependencies/Changes.scala +++ b/src/compiler/scala/tools/nsc/dependencies/Changes.scala @@ -3,7 +3,7 @@ package dependencies import symtab.Flags -import collection._ +import scala.collection._ /** A component that describes the possible changes between successive * compilations of a class. diff --git a/src/compiler/scala/tools/nsc/dependencies/DependencyAnalysis.scala b/src/compiler/scala/tools/nsc/dependencies/DependencyAnalysis.scala index e35191ca20..ad6ca68fec 100644 --- a/src/compiler/scala/tools/nsc/dependencies/DependencyAnalysis.scala +++ b/src/compiler/scala/tools/nsc/dependencies/DependencyAnalysis.scala @@ -2,7 +2,7 @@ package scala.tools.nsc package dependencies import io.Path -import collection._ +import scala.collection._ import symtab.Flags import scala.tools.nsc.io.AbstractFile import scala.reflect.internal.util.SourceFile diff --git a/src/compiler/scala/tools/nsc/doc/Settings.scala b/src/compiler/scala/tools/nsc/doc/Settings.scala index dbc34bd7b3..f5df772d7d 100644 --- a/src/compiler/scala/tools/nsc/doc/Settings.scala +++ b/src/compiler/scala/tools/nsc/doc/Settings.scala @@ -8,7 +8,7 @@ package doc import java.io.File import java.lang.System -import language.postfixOps +import scala.language.postfixOps /** An extended version of compiler settings, with additional Scaladoc-specific options. * @param error A function that prints a string to the appropriate error stream @@ -257,7 +257,7 @@ class Settings(error: String => Unit, val printMsg: String => Unit = println(_)) ("scala.reflect.ClassManifest" -> ((tparam: String) => tparam + " is accompanied by a ClassManifest, which is a runtime representation of its type that survives erasure")) + ("scala.reflect.OptManifest" -> ((tparam: String) => tparam + " is accompanied by an OptManifest, which can be either a runtime representation of its type or the NoManifest, which means the runtime type is not available")) + ("scala.reflect.ClassTag" -> ((tparam: String) => tparam + " is accompanied by a ClassTag, which is a runtime representation of its type that survives erasure")) + - ("scala.reflect.AbsTypeTag" -> ((tparam: String) => tparam + " is accompanied by an AbsTypeTag, which is a runtime representation of its type that survives erasure")) + + ("scala.reflect.WeakTypeTag" -> ((tparam: String) => tparam + " is accompanied by an WeakTypeTag, which is a runtime representation of its type that survives erasure")) + ("scala.reflect.base.TypeTags.TypeTag" -> ((tparam: String) => tparam + " is accompanied by a TypeTag, which is a runtime representation of its type that survives erasure")) /** diff --git a/src/compiler/scala/tools/nsc/doc/Uncompilable.scala b/src/compiler/scala/tools/nsc/doc/Uncompilable.scala index 7e57f9fd9f..812b62a1c6 100644 --- a/src/compiler/scala/tools/nsc/doc/Uncompilable.scala +++ b/src/compiler/scala/tools/nsc/doc/Uncompilable.scala @@ -5,8 +5,8 @@ package scala.tools.nsc package doc -import language.implicitConversions -import language.postfixOps +import scala.language.implicitConversions +import scala.language.postfixOps /** Some glue between DocParser (which reads source files which can't be compiled) * and the scaladoc model. diff --git a/src/compiler/scala/tools/nsc/doc/html/HtmlPage.scala b/src/compiler/scala/tools/nsc/doc/html/HtmlPage.scala index 7a74c569f3..f7c5611b8a 100644 --- a/src/compiler/scala/tools/nsc/doc/html/HtmlPage.scala +++ b/src/compiler/scala/tools/nsc/doc/html/HtmlPage.scala @@ -10,8 +10,8 @@ package html import model._ import comment._ -import xml.{XML, NodeSeq} -import xml.dtd.{DocType, PublicID} +import scala.xml.{XML, NodeSeq} +import scala.xml.dtd.{DocType, PublicID} import scala.collection._ import java.io.Writer @@ -87,7 +87,7 @@ abstract class HtmlPage extends Page { thisPage => case Title(in, _) => <h6>{ inlineToHtml(in) }</h6> case Paragraph(in) => <p>{ inlineToHtml(in) }</p> case Code(data) => - <pre>{ SyntaxHigh(data) }</pre> //<pre>{ xml.Text(data) }</pre> + <pre>{ SyntaxHigh(data) }</pre> //<pre>{ scala.xml.Text(data) }</pre> case UnorderedList(items) => <ul>{ listItemsToHtml(items) }</ul> case OrderedList(items, listStyle) => @@ -119,9 +119,9 @@ abstract class HtmlPage extends Page { thisPage => case Subscript(in) => <sub>{ inlineToHtml(in) }</sub> case Link(raw, title) => <a href={ raw }>{ inlineToHtml(title) }</a> case Monospace(in) => <code>{ inlineToHtml(in) }</code> - case Text(text) => xml.Text(text) + case Text(text) => scala.xml.Text(text) case Summary(in) => inlineToHtml(in) - case HtmlTag(tag) => xml.Unparsed(tag) + case HtmlTag(tag) => scala.xml.Unparsed(tag) case EntityLink(target, link) => linkToHtml(target, link, true) } @@ -158,11 +158,11 @@ abstract class HtmlPage extends Page { thisPage => if (starts.isEmpty && (inPos == string.length)) NodeSeq.Empty else if (starts.isEmpty) - xml.Text(string.slice(inPos, string.length)) + scala.xml.Text(string.slice(inPos, string.length)) else if (inPos == starts.head) toLinksIn(inPos, starts) else { - xml.Text(string.slice(inPos, starts.head)) ++ toLinksIn(starts.head, starts) + scala.xml.Text(string.slice(inPos, starts.head)) ++ toLinksIn(starts.head, starts) } } def toLinksIn(inPos: Int, starts: List[Int]): NodeSeq = { @@ -173,7 +173,7 @@ abstract class HtmlPage extends Page { thisPage => if (hasLinks) toLinksOut(0, tpe.refEntity.keySet.toList) else - xml.Text(string) + scala.xml.Text(string) } def typesToHtml(tpess: List[model.TypeEntity], hasLinks: Boolean, sep: NodeSeq): NodeSeq = tpess match { @@ -192,10 +192,10 @@ abstract class HtmlPage extends Page { thisPage => if (hasPage(dTpl)) { <a href={ relativeLinkTo(dTpl) } class="extype" name={ dTpl.qualifiedName }>{ if (name eq null) dTpl.name else name }</a> } else { - xml.Text(if (name eq null) dTpl.name else name) + scala.xml.Text(if (name eq null) dTpl.name else name) } case ndTpl: NoDocTemplate => - xml.Text(if (name eq null) ndTpl.name else name) + scala.xml.Text(if (name eq null) ndTpl.name else name) } /** Returns the HTML code that represents the templates in `tpls` as a list of hyperlinked names. */ diff --git a/src/compiler/scala/tools/nsc/doc/html/SyntaxHigh.scala b/src/compiler/scala/tools/nsc/doc/html/SyntaxHigh.scala index f1eab841f9..e21ee07963 100644 --- a/src/compiler/scala/tools/nsc/doc/html/SyntaxHigh.scala +++ b/src/compiler/scala/tools/nsc/doc/html/SyntaxHigh.scala @@ -5,7 +5,7 @@ package scala.tools.nsc.doc.html -import xml.NodeSeq +import scala.xml.NodeSeq /** Highlight the syntax of Scala code appearing in a `{{{` wiki block * (see method `HtmlPage.blockToHtml`). @@ -40,7 +40,7 @@ private[html] object SyntaxHigh { /** Standard library classes/objects, sorted alphabetically */ val standards = Array ( - "AbsTypeTag", "Any", "AnyRef", "AnyVal", "App", "Application", "Array", + "WeakTypeTag", "Any", "AnyRef", "AnyVal", "App", "Application", "Array", "Boolean", "Byte", "Char", "Class", "ClassTag", "ClassManifest", "Console", "Double", "Enumeration", "Float", "Function", "Int", "List", "Long", "Manifest", "Map", @@ -281,6 +281,6 @@ private[html] object SyntaxHigh { } parse("", 0) - xml.Unparsed(out.toString) + scala.xml.Unparsed(out.toString) } } diff --git a/src/compiler/scala/tools/nsc/doc/html/page/ReferenceIndex.scala b/src/compiler/scala/tools/nsc/doc/html/page/ReferenceIndex.scala index 6d83b4e6a5..cd76f84a37 100755 --- a/src/compiler/scala/tools/nsc/doc/html/page/ReferenceIndex.scala +++ b/src/compiler/scala/tools/nsc/doc/html/page/ReferenceIndex.scala @@ -44,7 +44,7 @@ class ReferenceIndex(letter: Char, index: doc.Index, universe: Universe) extends <strike>{ name }</strike> }</div> <div class="occurrences">{ - for (owner <- occurrences) yield owner ++ xml.Text(" ") + for (owner <- occurrences) yield owner ++ scala.xml.Text(" ") }</div> </div> } diff --git a/src/compiler/scala/tools/nsc/doc/html/page/Source.scala b/src/compiler/scala/tools/nsc/doc/html/page/Source.scala index a51d66c6cc..edc0736400 100644 --- a/src/compiler/scala/tools/nsc/doc/html/page/Source.scala +++ b/src/compiler/scala/tools/nsc/doc/html/page/Source.scala @@ -10,7 +10,7 @@ package page import model._ import comment._ -import xml.{NodeSeq, Unparsed} +import scala.xml.{NodeSeq, Unparsed} import java.io.File class Source(sourceFile: File) extends HtmlPage { diff --git a/src/compiler/scala/tools/nsc/doc/html/page/Template.scala b/src/compiler/scala/tools/nsc/doc/html/page/Template.scala index 24a26b2ad3..d4e52ba120 100644 --- a/src/compiler/scala/tools/nsc/doc/html/page/Template.scala +++ b/src/compiler/scala/tools/nsc/doc/html/page/Template.scala @@ -13,7 +13,7 @@ import model.diagram._ import diagram._ import scala.xml.{ NodeSeq, Text, UnprefixedAttribute } -import language.postfixOps +import scala.language.postfixOps import model._ import model.diagram._ @@ -51,7 +51,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp var hash = '{ val p = templateToPath(tpl); (p.tail.reverse ::: List(p.head.replace(".html", ""))).mkString(".") }'; var anchor = window.location.hash; var anchor_opt = ''; - if (anchor.length { scala.xml.Unparsed(">=") /* unless we use Unparsed, it gets escaped and crashes the script */ } 1) + if (anchor.length { scala.xml.Unparsed(">=") /* unless we use Unparsed, it gets escaped and crashes the script */ } 1) anchor_opt = '@' + anchor.substring(1); window.location.href = url + '#' + hash + anchor_opt; }} @@ -93,7 +93,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp if (tpl.isRootPackage || tpl.inTemplate.isRootPackage) NodeSeq.Empty else - <p id="owner">{ templatesToHtml(tpl.inTemplate.toRoot.reverse.tail, xml.Text(".")) }</p> + <p id="owner">{ templatesToHtml(tpl.inTemplate.toRoot.reverse.tail, scala.xml.Text(".")) }</p> } <body class={ if (tpl.isType) "type" else "value" }> @@ -152,7 +152,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp <div id="ancestors"> <span class="filtertype">Implicitly<br/> </span> - <ol id="implicits"> { + <ol id="implicits"> { tpl.conversions.map { conv => val name = conv.conversionQualifiedName val hide = universe.settings.hiddenImplicits(name) @@ -415,14 +415,14 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp case Nil => NodeSeq.Empty case List(constraint) => - xml.Text("This conversion will take place only if ") ++ constraintToHtml(constraint) ++ xml.Text(".") + scala.xml.Text("This conversion will take place only if ") ++ constraintToHtml(constraint) ++ scala.xml.Text(".") case List(constraint1, constraint2) => - xml.Text("This conversion will take place only if ") ++ constraintToHtml(constraint1) ++ - xml.Text(" and at the same time ") ++ constraintToHtml(constraint2) ++ xml.Text(".") + scala.xml.Text("This conversion will take place only if ") ++ constraintToHtml(constraint1) ++ + scala.xml.Text(" and at the same time ") ++ constraintToHtml(constraint2) ++ scala.xml.Text(".") case constraints => <br/> ++ "This conversion will take place only if all of the following constraints are met:" ++ <br/> ++ { var index = 0 - constraints map { constraint => xml.Text({ index += 1; index } + ". ") ++ constraintToHtml(constraint) ++ <br/> } + constraints map { constraint => scala.xml.Text({ index += 1; index } + ". ") ++ constraintToHtml(constraint) ++ <br/> } } } @@ -440,18 +440,18 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp case d: Def => d.valueParams map (_ map (_ name) mkString("(", ", ", ")")) mkString case _ => "" // no parameters } - <br/> ++ xml.Text("To access this member you can use a ") ++ + <br/> ++ scala.xml.Text("To access this member you can use a ") ++ <a href="http://stackoverflow.com/questions/2087250/what-is-the-purpose-of-type-ascription-in-scala" - target="_blank">type ascription</a> ++ xml.Text(":") ++ + target="_blank">type ascription</a> ++ scala.xml.Text(":") ++ <br/> ++ <div class="cmt"><pre>{"(" + Template.lowerFirstLetter(tpl.name) + ": " + conv.targetType.name + ")." + mbr.name + params }</pre></div> } val shadowingWarning: NodeSeq = if (mbr.isShadowedImplicit) - xml.Text("This implicitly inherited member is shadowed by one or more members in this " + + scala.xml.Text("This implicitly inherited member is shadowed by one or more members in this " + "class.") ++ shadowingSuggestion else if (mbr.isAmbiguousImplicit) - xml.Text("This implicitly inherited member is ambiguous. One or more implicitly " + + scala.xml.Text("This implicitly inherited member is ambiguous. One or more implicitly " + "inherited members have similar signatures, so calling this member may produce an ambiguous " + "implicit conversion compiler error.") ++ shadowingSuggestion else NodeSeq.Empty @@ -471,7 +471,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp if (fvs.isEmpty || isReduced) NodeSeq.Empty else { <dt>Attributes</dt> - <dd>{ fvs map { fv => { inlineToHtml(fv.text) ++ xml.Text(" ") } } }</dd> + <dd>{ fvs map { fv => { inlineToHtml(fv.text) ++ scala.xml.Text(" ") } } }</dd> } } @@ -480,7 +480,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp if ((inDefTpls.tail.isEmpty && (inDefTpls.head == inTpl)) || isReduced) NodeSeq.Empty else { <dt>Definition Classes</dt> - <dd>{ templatesToHtml(inDefTpls, xml.Text(" → ")) }</dd> + <dd>{ templatesToHtml(inDefTpls, scala.xml.Text(" → ")) }</dd> } } @@ -628,7 +628,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp <div class="toggleContainer block"> <span class="toggle">Linear Supertypes</span> <div class="superTypes hiddenContent">{ - typesToHtml(dtpl.linearizationTypes, hasLinks = true, sep = xml.Text(", ")) + typesToHtml(dtpl.linearizationTypes, hasLinks = true, sep = scala.xml.Text(", ")) }</div> </div> case _ => NodeSeq.Empty @@ -639,7 +639,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp <div class="toggleContainer block"> <span class="toggle">Known Subclasses</span> <div class="subClasses hiddenContent">{ - templatesToHtml(dtpl.allSubClasses.sortBy(_.name), xml.Text(", ")) + templatesToHtml(dtpl.allSubClasses.sortBy(_.name), scala.xml.Text(", ")) }</div> </div> case _ => NodeSeq.Empty @@ -663,7 +663,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp def boundsToHtml(hi: Option[TypeEntity], lo: Option[TypeEntity], hasLinks: Boolean): NodeSeq = { def bound0(bnd: Option[TypeEntity], pre: String): NodeSeq = bnd match { case None => NodeSeq.Empty - case Some(tpe) => xml.Text(pre) ++ typeToHtml(tpe, hasLinks) + case Some(tpe) => scala.xml.Text(pre) ++ typeToHtml(tpe, hasLinks) } bound0(lo, " >: ") ++ bound0(hi, " <: ") } @@ -694,7 +694,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp def inside(hasLinks: Boolean, nameLink: String = ""): NodeSeq = <xml:group> <span class="modifier_kind"> - <span class="modifier">{ mbr.flags.map(flag => inlineToHtml(flag.text) ++ xml.Text(" ")) }</span> + <span class="modifier">{ mbr.flags.map(flag => inlineToHtml(flag.text) ++ scala.xml.Text(" ")) }</span> <span class="kind">{ kindToString(mbr) }</span> </span> <span class="symbol"> @@ -872,7 +872,7 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp def argumentsToHtml0(argss: List[ValueArgument]): NodeSeq = argss match { case Nil => NodeSeq.Empty case arg :: Nil => argumentToHtml(arg) - case arg :: args => argumentToHtml(arg) ++ xml.Text(", ") ++ argumentsToHtml0(args) + case arg :: args => argumentToHtml(arg) ++ scala.xml.Text(", ") ++ argumentsToHtml0(args) } <span class="args">({ argumentsToHtml0(argss) })</span> } @@ -922,29 +922,29 @@ class Template(universe: doc.Universe, generator: DiagramGenerator, tpl: DocTemp private def constraintToHtml(constraint: Constraint): NodeSeq = constraint match { case ktcc: KnownTypeClassConstraint => - xml.Text(ktcc.typeExplanation(ktcc.typeParamName) + " (" + ktcc.typeParamName + ": ") ++ - templateToHtml(ktcc.typeClassEntity) ++ xml.Text(")") + scala.xml.Text(ktcc.typeExplanation(ktcc.typeParamName) + " (" + ktcc.typeParamName + ": ") ++ + templateToHtml(ktcc.typeClassEntity) ++ scala.xml.Text(")") case tcc: TypeClassConstraint => - xml.Text(tcc.typeParamName + " is ") ++ + scala.xml.Text(tcc.typeParamName + " is ") ++ <a href="http://stackoverflow.com/questions/2982276/what-is-a-context-bound-in-scala" target="_blank"> - context-bounded</a> ++ xml.Text(" by " + tcc.typeClassEntity.qualifiedName + " (" + tcc.typeParamName + ": ") ++ - templateToHtml(tcc.typeClassEntity) ++ xml.Text(")") + context-bounded</a> ++ scala.xml.Text(" by " + tcc.typeClassEntity.qualifiedName + " (" + tcc.typeParamName + ": ") ++ + templateToHtml(tcc.typeClassEntity) ++ scala.xml.Text(")") case impl: ImplicitInScopeConstraint => - xml.Text("an implicit value of type ") ++ typeToHtml(impl.implicitType, true) ++ xml.Text(" is in scope") + scala.xml.Text("an implicit value of type ") ++ typeToHtml(impl.implicitType, true) ++ scala.xml.Text(" is in scope") case eq: EqualTypeParamConstraint => - xml.Text(eq.typeParamName + " is " + eq.rhs.name + " (" + eq.typeParamName + " =:= ") ++ - typeToHtml(eq.rhs, true) ++ xml.Text(")") + scala.xml.Text(eq.typeParamName + " is " + eq.rhs.name + " (" + eq.typeParamName + " =:= ") ++ + typeToHtml(eq.rhs, true) ++ scala.xml.Text(")") case bt: BoundedTypeParamConstraint => - xml.Text(bt.typeParamName + " is a superclass of " + bt.lowerBound.name + " and a subclass of " + + scala.xml.Text(bt.typeParamName + " is a superclass of " + bt.lowerBound.name + " and a subclass of " + bt.upperBound.name + " (" + bt.typeParamName + " >: ") ++ - typeToHtml(bt.lowerBound, true) ++ xml.Text(" <: ") ++ - typeToHtml(bt.upperBound, true) ++ xml.Text(")") + typeToHtml(bt.lowerBound, true) ++ scala.xml.Text(" <: ") ++ + typeToHtml(bt.upperBound, true) ++ scala.xml.Text(")") case lb: LowerBoundedTypeParamConstraint => - xml.Text(lb.typeParamName + " is a superclass of " + lb.lowerBound.name + " (" + lb.typeParamName + " >: ") ++ - typeToHtml(lb.lowerBound, true) ++ xml.Text(")") + scala.xml.Text(lb.typeParamName + " is a superclass of " + lb.lowerBound.name + " (" + lb.typeParamName + " >: ") ++ + typeToHtml(lb.lowerBound, true) ++ scala.xml.Text(")") case ub: UpperBoundedTypeParamConstraint => - xml.Text(ub.typeParamName + " is a subclass of " + ub.upperBound.name + " (" + ub.typeParamName + " <: ") ++ - typeToHtml(ub.upperBound, true) ++ xml.Text(")") + scala.xml.Text(ub.typeParamName + " is a subclass of " + ub.upperBound.name + " (" + ub.typeParamName + " <: ") ++ + typeToHtml(ub.upperBound, true) ++ scala.xml.Text(")") } def makeDiagramHtml(tpl: DocTemplateEntity, diagram: Option[Diagram], description: String, id: String) = { diff --git a/src/compiler/scala/tools/nsc/doc/html/page/diagram/DotDiagramGenerator.scala b/src/compiler/scala/tools/nsc/doc/html/page/diagram/DotDiagramGenerator.scala index c46c33c1ee..304c534bdc 100644 --- a/src/compiler/scala/tools/nsc/doc/html/page/diagram/DotDiagramGenerator.scala +++ b/src/compiler/scala/tools/nsc/doc/html/page/diagram/DotDiagramGenerator.scala @@ -426,7 +426,7 @@ class DotDiagramGenerator(settings: doc.Settings) extends DiagramGenerator { else if (klass.contains("object")) "object" else "" - def getPosition(g: xml.Node, axis: String, offset: Double): Option[Double] = { + def getPosition(g: scala.xml.Node, axis: String, offset: Double): Option[Double] = { val node = g \ "a" \ "text" \ ("@" + axis) if (node.isEmpty) None @@ -508,4 +508,4 @@ class DotDiagramGenerator(settings: doc.Settings) extends DiagramGenerator { private val graphAttributesStr = graphAttributes.map{ case (key, value) => key + "=\"" + value + "\";\n" }.mkString private val nodeAttributesStr = flatten(nodeAttributes) private val edgeAttributesStr = flatten(edgeAttributes) -}
\ No newline at end of file +} diff --git a/src/compiler/scala/tools/nsc/doc/model/ModelFactory.scala b/src/compiler/scala/tools/nsc/doc/model/ModelFactory.scala index 2b9638076c..0468d2c0f1 100644 --- a/src/compiler/scala/tools/nsc/doc/model/ModelFactory.scala +++ b/src/compiler/scala/tools/nsc/doc/model/ModelFactory.scala @@ -156,7 +156,7 @@ class ModelFactory(val global: Global, val settings: doc.Settings) { if (!sym.isTrait && (sym hasFlag Flags.ABSTRACT)) fgs += Paragraph(Text("abstract")) /* Resetting the DEFERRED flag is a little trick here for refined types: (example from scala.collections) * {{{ - * implicit def traversable2ops[T](t: collection.GenTraversableOnce[T]) = new TraversableOps[T] { + * implicit def traversable2ops[T](t: scala.collection.GenTraversableOnce[T]) = new TraversableOps[T] { * def isParallel = ... * }}} * the type the method returns is TraversableOps, which has all-abstract symbols. But in reality, it couldn't have diff --git a/src/compiler/scala/tools/nsc/doc/model/comment/CommentFactory.scala b/src/compiler/scala/tools/nsc/doc/model/comment/CommentFactory.scala index 59cdf05957..47eea52095 100644 --- a/src/compiler/scala/tools/nsc/doc/model/comment/CommentFactory.scala +++ b/src/compiler/scala/tools/nsc/doc/model/comment/CommentFactory.scala @@ -13,7 +13,7 @@ import scala.collection._ import scala.util.matching.Regex import scala.annotation.switch import scala.reflect.internal.util.{NoPosition, Position} -import language.postfixOps +import scala.language.postfixOps /** The comment parser transforms raw comment strings into `Comment` objects. * Call `parse` to run the parser. Note that the parser is stateless and diff --git a/src/compiler/scala/tools/nsc/doc/model/diagram/DiagramFactory.scala b/src/compiler/scala/tools/nsc/doc/model/diagram/DiagramFactory.scala index 2645d8fd14..fa698afaa6 100644 --- a/src/compiler/scala/tools/nsc/doc/model/diagram/DiagramFactory.scala +++ b/src/compiler/scala/tools/nsc/doc/model/diagram/DiagramFactory.scala @@ -4,7 +4,7 @@ package diagram import model._ import comment.CommentFactory -import collection.mutable +import scala.collection.mutable // statistics import html.page.diagram.DiagramStats diff --git a/src/compiler/scala/tools/nsc/interactive/BuildManager.scala b/src/compiler/scala/tools/nsc/interactive/BuildManager.scala index e31c5eda31..7067daec26 100644 --- a/src/compiler/scala/tools/nsc/interactive/BuildManager.scala +++ b/src/compiler/scala/tools/nsc/interactive/BuildManager.scala @@ -13,7 +13,7 @@ import scala.reflect.internal.util.FakePos import dependencies._ import io.AbstractFile -import language.implicitConversions +import scala.language.implicitConversions trait BuildManager { diff --git a/src/compiler/scala/tools/nsc/interactive/ContextTrees.scala b/src/compiler/scala/tools/nsc/interactive/ContextTrees.scala index 4a60211254..a906d1454c 100644 --- a/src/compiler/scala/tools/nsc/interactive/ContextTrees.scala +++ b/src/compiler/scala/tools/nsc/interactive/ContextTrees.scala @@ -5,7 +5,7 @@ package scala.tools.nsc package interactive -import collection.mutable.ArrayBuffer +import scala.collection.mutable.ArrayBuffer import scala.reflect.internal.util.Position trait ContextTrees { self: Global => diff --git a/src/compiler/scala/tools/nsc/interactive/Global.scala b/src/compiler/scala/tools/nsc/interactive/Global.scala index cd0cc93ba8..ec3ed110fd 100644 --- a/src/compiler/scala/tools/nsc/interactive/Global.scala +++ b/src/compiler/scala/tools/nsc/interactive/Global.scala @@ -20,7 +20,7 @@ import scala.tools.nsc.io.Pickler._ import scala.tools.nsc.typechecker.DivergentImplicit import scala.annotation.tailrec import symtab.Flags.{ACCESSOR, PARAMACCESSOR} -import language.implicitConversions +import scala.language.implicitConversions /** The main class of the presentation compiler in an interactive environment such as an IDE */ diff --git a/src/compiler/scala/tools/nsc/interactive/InteractiveReporter.scala b/src/compiler/scala/tools/nsc/interactive/InteractiveReporter.scala index f57786578a..104a69897d 100644 --- a/src/compiler/scala/tools/nsc/interactive/InteractiveReporter.scala +++ b/src/compiler/scala/tools/nsc/interactive/InteractiveReporter.scala @@ -5,7 +5,7 @@ package scala.tools.nsc package interactive -import collection.mutable.ArrayBuffer +import scala.collection.mutable.ArrayBuffer import scala.reflect.internal.util.Position import reporters.Reporter diff --git a/src/compiler/scala/tools/nsc/interactive/Picklers.scala b/src/compiler/scala/tools/nsc/interactive/Picklers.scala index f4ec03bb47..8ed7a67058 100644 --- a/src/compiler/scala/tools/nsc/interactive/Picklers.scala +++ b/src/compiler/scala/tools/nsc/interactive/Picklers.scala @@ -13,7 +13,7 @@ import util.EmptyAction import scala.reflect.internal.util.{Position, RangePosition, NoPosition, OffsetPosition, TransparentPosition} import io.{Pickler, CondPickler} import io.Pickler._ -import collection.mutable +import scala.collection.mutable import mutable.ListBuffer trait Picklers { self: Global => diff --git a/src/compiler/scala/tools/nsc/interactive/RefinedBuildManager.scala b/src/compiler/scala/tools/nsc/interactive/RefinedBuildManager.scala index 9afaa10449..f3d454ad3e 100644 --- a/src/compiler/scala/tools/nsc/interactive/RefinedBuildManager.scala +++ b/src/compiler/scala/tools/nsc/interactive/RefinedBuildManager.scala @@ -220,7 +220,7 @@ class RefinedBuildManager(val settings: Settings) extends Changes with BuildMana } /** Return the set of source files that are invalidated by the given changes. */ - def invalidated(files: Set[AbstractFile], changesOf: collection.Map[Symbol, List[Change]], + def invalidated(files: Set[AbstractFile], changesOf: scala.collection.Map[Symbol, List[Change]], processed: Set[AbstractFile] = Set.empty): Set[AbstractFile] = { val buf = new mutable.HashSet[AbstractFile] diff --git a/src/compiler/scala/tools/nsc/interactive/RichCompilationUnits.scala b/src/compiler/scala/tools/nsc/interactive/RichCompilationUnits.scala index 0f52258b7e..ca5bdd632f 100644 --- a/src/compiler/scala/tools/nsc/interactive/RichCompilationUnits.scala +++ b/src/compiler/scala/tools/nsc/interactive/RichCompilationUnits.scala @@ -6,7 +6,7 @@ package scala.tools.nsc package interactive import scala.reflect.internal.util.{SourceFile, Position, NoPosition} -import collection.mutable.ArrayBuffer +import scala.collection.mutable.ArrayBuffer trait RichCompilationUnits { self: Global => diff --git a/src/compiler/scala/tools/nsc/interactive/ScratchPadMaker.scala b/src/compiler/scala/tools/nsc/interactive/ScratchPadMaker.scala index 0080cfd753..dfbbb6ff88 100644 --- a/src/compiler/scala/tools/nsc/interactive/ScratchPadMaker.scala +++ b/src/compiler/scala/tools/nsc/interactive/ScratchPadMaker.scala @@ -2,8 +2,8 @@ package scala.tools.nsc package interactive import scala.reflect.internal.util.{SourceFile, BatchSourceFile, RangePosition} -import collection.mutable.ArrayBuffer -import reflect.internal.Chars.{isLineBreakChar, isWhitespace} +import scala.collection.mutable.ArrayBuffer +import scala.reflect.internal.Chars.{isLineBreakChar, isWhitespace} import ast.parser.Tokens._ trait ScratchPadMaker { self: Global => diff --git a/src/compiler/scala/tools/nsc/interactive/tests/InteractiveTest.scala b/src/compiler/scala/tools/nsc/interactive/tests/InteractiveTest.scala index deeb398d39..cb46c0fdca 100644 --- a/src/compiler/scala/tools/nsc/interactive/tests/InteractiveTest.scala +++ b/src/compiler/scala/tools/nsc/interactive/tests/InteractiveTest.scala @@ -15,7 +15,7 @@ import scala.annotation.migration import scala.reflect.internal.util.Position import scala.reflect.internal.util.SourceFile -import collection.mutable.ListBuffer +import scala.collection.mutable.ListBuffer /** A base class for writing interactive compiler tests. * @@ -127,4 +127,4 @@ abstract class InteractiveTest // the presentation compiler sys.exit(0) } -}
\ No newline at end of file +} diff --git a/src/compiler/scala/tools/nsc/interactive/tests/Tester.scala b/src/compiler/scala/tools/nsc/interactive/tests/Tester.scala index 5270b1971a..aadffe2da5 100644 --- a/src/compiler/scala/tools/nsc/interactive/tests/Tester.scala +++ b/src/compiler/scala/tools/nsc/interactive/tests/Tester.scala @@ -9,7 +9,7 @@ package tests import scala.reflect.internal.util._ import reporters._ import io.AbstractFile -import collection.mutable.ArrayBuffer +import scala.collection.mutable.ArrayBuffer class Tester(ntests: Int, inputs: Array[SourceFile], settings: Settings) { @@ -168,7 +168,7 @@ class Tester(ntests: Int, inputs: Array[SourceFile], settings: Settings) { } case class ErrorTrace( - sfidx: Int, changes: Seq[Change], infos: collection.Set[reporter.Info], content: Array[Char]) { + sfidx: Int, changes: Seq[Change], infos: scala.collection.Set[reporter.Info], content: Array[Char]) { override def toString = "Sourcefile: "+inputs(sfidx)+ "\nChanges:\n "+changes.mkString("\n ")+ diff --git a/src/compiler/scala/tools/nsc/interactive/tests/core/TestMarker.scala b/src/compiler/scala/tools/nsc/interactive/tests/core/TestMarker.scala index b5ea6ab7ce..ba1722382b 100644 --- a/src/compiler/scala/tools/nsc/interactive/tests/core/TestMarker.scala +++ b/src/compiler/scala/tools/nsc/interactive/tests/core/TestMarker.scala @@ -3,7 +3,7 @@ package scala.tools.nsc.interactive.tests.core case class DuplicateTestMarker(msg: String) extends Exception(msg) object TestMarker { - import collection.mutable.Map + import scala.collection.mutable.Map private val markers: Map[String, TestMarker] = Map.empty private def checkForDuplicate(marker: TestMarker) { @@ -24,4 +24,4 @@ object CompletionMarker extends TestMarker("/*!*/") object TypeMarker extends TestMarker("/*?*/") -object HyperlinkMarker extends TestMarker("/*#*/")
\ No newline at end of file +object HyperlinkMarker extends TestMarker("/*#*/") diff --git a/src/compiler/scala/tools/nsc/interpreter/CompletionAware.scala b/src/compiler/scala/tools/nsc/interpreter/CompletionAware.scala index abf326e746..5475410a84 100644 --- a/src/compiler/scala/tools/nsc/interpreter/CompletionAware.scala +++ b/src/compiler/scala/tools/nsc/interpreter/CompletionAware.scala @@ -77,7 +77,7 @@ object CompletionAware { /** Convenience factories. */ def apply(terms: () => List[String]): CompletionAware = apply(terms, _ => None) - def apply(map: collection.Map[String, CompletionAware]): CompletionAware = + def apply(map: scala.collection.Map[String, CompletionAware]): CompletionAware = apply(() => map.keys.toList, map.get _) } diff --git a/src/compiler/scala/tools/nsc/interpreter/ILoop.scala b/src/compiler/scala/tools/nsc/interpreter/ILoop.scala index 61c390b07f..1d6ec77ef2 100644 --- a/src/compiler/scala/tools/nsc/interpreter/ILoop.scala +++ b/src/compiler/scala/tools/nsc/interpreter/ILoop.scala @@ -23,7 +23,7 @@ import scala.reflect.NameTransformer._ import util.ScalaClassLoader import ScalaClassLoader._ import scala.tools.util._ -import language.{implicitConversions, existentials} +import scala.language.{implicitConversions, existentials} import scala.reflect.{ClassTag, classTag} import scala.tools.reflect.StdRuntimeTags._ @@ -839,7 +839,7 @@ class ILoop(in0: Option[BufferedReader], protected val out: JPrintWriter) addThunk({ import scala.tools.nsc.io._ import Properties.userHome - import compat.Platform.EOL + import scala.compat.Platform.EOL val autorun = replProps.replAutorunCode.option flatMap (f => io.File(f).safeSlurp()) if (autorun.isDefined) intp.quietRun(autorun.get) }) diff --git a/src/compiler/scala/tools/nsc/interpreter/IMain.scala b/src/compiler/scala/tools/nsc/interpreter/IMain.scala index c340b72ec3..790a1ac8d4 100644 --- a/src/compiler/scala/tools/nsc/interpreter/IMain.scala +++ b/src/compiler/scala/tools/nsc/interpreter/IMain.scala @@ -25,7 +25,7 @@ import scala.util.control.Exception.{ ultimately } import IMain._ import java.util.concurrent.Future import typechecker.Analyzer -import language.implicitConversions +import scala.language.implicitConversions import scala.reflect.runtime.{ universe => ru } import scala.reflect.{ ClassTag, classTag } import scala.tools.reflect.StdRuntimeTags._ @@ -387,8 +387,7 @@ class IMain(initialSettings: Settings, protected val out: JPrintWriter) extends newSym <- req.definedSymbols get name oldSym <- oldReq.definedSymbols get name.companionName } { - replwarn("warning: previously defined %s is not a companion to %s.".format( - stripString("" + oldSym), stripString("" + newSym))) + exitingTyper(replwarn(s"warning: previously defined $oldSym is not a companion to $newSym.")) replwarn("Companions must be defined together; you may wish to use :paste mode for this.") } diff --git a/src/compiler/scala/tools/nsc/interpreter/JLineCompletion.scala b/src/compiler/scala/tools/nsc/interpreter/JLineCompletion.scala index cf5871ea6f..b390ad5417 100644 --- a/src/compiler/scala/tools/nsc/interpreter/JLineCompletion.scala +++ b/src/compiler/scala/tools/nsc/interpreter/JLineCompletion.scala @@ -9,7 +9,7 @@ package interpreter import scala.tools.jline._ import scala.tools.jline.console.completer._ import Completion._ -import collection.mutable.ListBuffer +import scala.collection.mutable.ListBuffer // REPL completor - queries supplied interpreter for valid // completions based on current contents of buffer. diff --git a/src/compiler/scala/tools/nsc/interpreter/LoopCommands.scala b/src/compiler/scala/tools/nsc/interpreter/LoopCommands.scala index 2dc394a081..f0e643d572 100644 --- a/src/compiler/scala/tools/nsc/interpreter/LoopCommands.scala +++ b/src/compiler/scala/tools/nsc/interpreter/LoopCommands.scala @@ -6,12 +6,12 @@ package scala.tools.nsc package interpreter -import collection.{ mutable, immutable } +import scala.collection.{ mutable, immutable } import mutable.ListBuffer -import language.implicitConversions +import scala.language.implicitConversions class ProcessResult(val line: String) { - import sys.process._ + import scala.sys.process._ private val buffer = new ListBuffer[String] val builder = Process(line) diff --git a/src/compiler/scala/tools/nsc/interpreter/MemberHandlers.scala b/src/compiler/scala/tools/nsc/interpreter/MemberHandlers.scala index 5cc6c8e6d0..df96a27291 100644 --- a/src/compiler/scala/tools/nsc/interpreter/MemberHandlers.scala +++ b/src/compiler/scala/tools/nsc/interpreter/MemberHandlers.scala @@ -10,7 +10,7 @@ import scala.collection.{ mutable, immutable } import scala.PartialFunction.cond import scala.reflect.internal.Chars import scala.reflect.internal.Flags._ -import language.implicitConversions +import scala.language.implicitConversions trait MemberHandlers { val intp: IMain diff --git a/src/compiler/scala/tools/nsc/interpreter/NamedParam.scala b/src/compiler/scala/tools/nsc/interpreter/NamedParam.scala index a2b42aeefc..3203e2ba49 100644 --- a/src/compiler/scala/tools/nsc/interpreter/NamedParam.scala +++ b/src/compiler/scala/tools/nsc/interpreter/NamedParam.scala @@ -7,7 +7,7 @@ package scala.tools.nsc package interpreter import NamedParam._ -import language.implicitConversions +import scala.language.implicitConversions import scala.reflect.runtime.{universe => ru} import scala.reflect.{ClassTag, classTag} diff --git a/src/compiler/scala/tools/nsc/interpreter/Phased.scala b/src/compiler/scala/tools/nsc/interpreter/Phased.scala index 98ac86587b..83d7012bb1 100644 --- a/src/compiler/scala/tools/nsc/interpreter/Phased.scala +++ b/src/compiler/scala/tools/nsc/interpreter/Phased.scala @@ -7,7 +7,7 @@ package scala.tools.nsc package interpreter import scala.collection.{ mutable, immutable } -import language.implicitConversions +import scala.language.implicitConversions /** Mix this into an object and use it as a phasing * swiss army knife. diff --git a/src/compiler/scala/tools/nsc/interpreter/Power.scala b/src/compiler/scala/tools/nsc/interpreter/Power.scala index 1852b2d94b..4aef54bce5 100644 --- a/src/compiler/scala/tools/nsc/interpreter/Power.scala +++ b/src/compiler/scala/tools/nsc/interpreter/Power.scala @@ -13,7 +13,7 @@ import session.{ History } import scala.io.Codec import java.net.{ URL, MalformedURLException } import io.{ Path } -import language.implicitConversions +import scala.language.implicitConversions import scala.reflect.runtime.{universe => ru} import scala.reflect.{ClassTag, classTag} diff --git a/src/compiler/scala/tools/nsc/interpreter/ReplVals.scala b/src/compiler/scala/tools/nsc/interpreter/ReplVals.scala index 5b8e4c3d92..f27c4a8123 100644 --- a/src/compiler/scala/tools/nsc/interpreter/ReplVals.scala +++ b/src/compiler/scala/tools/nsc/interpreter/ReplVals.scala @@ -6,7 +6,7 @@ package scala.tools.nsc package interpreter -import language.implicitConversions +import scala.language.implicitConversions import scala.reflect.base.{Universe => BaseUniverse} import scala.reflect.runtime.{universe => ru} @@ -65,7 +65,7 @@ object ReplVals { * I have this forwarder which widens the type and then cast the result back * to the dependent type. */ - def compilerTypeFromTag(t: BaseUniverse # AbsTypeTag[_]): Global#Type = + def compilerTypeFromTag(t: BaseUniverse # WeakTypeTag[_]): Global#Type = definitions.compilerTypeFromTag(t) class AppliedTypeFromTags(sym: Symbol) { diff --git a/src/compiler/scala/tools/nsc/interpreter/TypeStrings.scala b/src/compiler/scala/tools/nsc/interpreter/TypeStrings.scala index 04ccb87389..fe1c4c0ca8 100644 --- a/src/compiler/scala/tools/nsc/interpreter/TypeStrings.scala +++ b/src/compiler/scala/tools/nsc/interpreter/TypeStrings.scala @@ -14,7 +14,7 @@ import scala.reflect.runtime.{universe => ru} import scala.reflect.{ClassTag, classTag} import typechecker.DestructureTypes import scala.reflect.internal.util.StringOps.ojoin -import language.implicitConversions +import scala.language.implicitConversions /** A more principled system for turning types into strings. */ diff --git a/src/compiler/scala/tools/nsc/interpreter/package.scala b/src/compiler/scala/tools/nsc/interpreter/package.scala index 98129aded8..89006be8e2 100644 --- a/src/compiler/scala/tools/nsc/interpreter/package.scala +++ b/src/compiler/scala/tools/nsc/interpreter/package.scala @@ -5,7 +5,7 @@ package scala.tools.nsc -import language.implicitConversions +import scala.language.implicitConversions /** The main REPL related classes and values are as follows. * In addition to standard compiler classes Global and Settings, there are: @@ -38,7 +38,7 @@ package object interpreter extends ReplConfig with ReplStrings { implicit def postfixOps = language.postfixOps // make all postfix ops in this package compile without warning private[interpreter] implicit def javaCharSeqCollectionToScala(xs: JCollection[_ <: CharSequence]): List[String] = { - import collection.JavaConverters._ + import scala.collection.JavaConverters._ xs.asScala.toList map ("" + _) } diff --git a/src/compiler/scala/tools/nsc/interpreter/session/package.scala b/src/compiler/scala/tools/nsc/interpreter/session/package.scala index c1cd599941..58232e6b9a 100644 --- a/src/compiler/scala/tools/nsc/interpreter/session/package.scala +++ b/src/compiler/scala/tools/nsc/interpreter/session/package.scala @@ -5,7 +5,7 @@ package scala.tools.nsc package interpreter -import language.implicitConversions +import scala.language.implicitConversions /** Files having to do with the state of a repl session: * lines of text entered, types and terms defined, etc. diff --git a/src/compiler/scala/tools/nsc/io/Jar.scala b/src/compiler/scala/tools/nsc/io/Jar.scala index 12ba3e4bd7..f66f3daa32 100644 --- a/src/compiler/scala/tools/nsc/io/Jar.scala +++ b/src/compiler/scala/tools/nsc/io/Jar.scala @@ -8,10 +8,10 @@ package io import java.io.{ InputStream, OutputStream, IOException, FileNotFoundException, FileInputStream, DataOutputStream } import java.util.jar._ -import collection.JavaConverters._ +import scala.collection.JavaConverters._ import Attributes.Name import util.ClassPath -import language.implicitConversions +import scala.language.implicitConversions // Attributes.Name instances: // diff --git a/src/compiler/scala/tools/nsc/io/Pickler.scala b/src/compiler/scala/tools/nsc/io/Pickler.scala index 48361cd157..b03a921e87 100644 --- a/src/compiler/scala/tools/nsc/io/Pickler.scala +++ b/src/compiler/scala/tools/nsc/io/Pickler.scala @@ -1,10 +1,10 @@ package scala.tools.nsc.io -import annotation.unchecked +import scala.annotation.unchecked import Lexer._ import java.io.Writer -import language.implicitConversions -import reflect.ClassTag +import scala.language.implicitConversions +import scala.reflect.ClassTag /** An abstract class for writing and reading Scala objects to and * from a legible representation. The presesentation follows the following grammar: diff --git a/src/compiler/scala/tools/nsc/io/package.scala b/src/compiler/scala/tools/nsc/io/package.scala index 3c4f004198..6385706830 100644 --- a/src/compiler/scala/tools/nsc/io/package.scala +++ b/src/compiler/scala/tools/nsc/io/package.scala @@ -8,7 +8,7 @@ package scala.tools.nsc import java.util.concurrent.{ Future, Callable } import java.util.{ Timer, TimerTask } import java.util.jar.{ Attributes } -import language.implicitConversions +import scala.language.implicitConversions package object io { implicit def postfixOps = language.postfixOps // make all postfix ops in this package compile without warning diff --git a/src/compiler/scala/tools/nsc/javac/JavaParsers.scala b/src/compiler/scala/tools/nsc/javac/JavaParsers.scala index c5da8822d5..a30ae1cb36 100644 --- a/src/compiler/scala/tools/nsc/javac/JavaParsers.scala +++ b/src/compiler/scala/tools/nsc/javac/JavaParsers.scala @@ -12,7 +12,7 @@ import scala.reflect.internal.util.OffsetPosition import scala.collection.mutable.ListBuffer import symtab.Flags import JavaTokens._ -import language.implicitConversions +import scala.language.implicitConversions trait JavaParsers extends ast.parser.ParsersCommon with JavaScanners { val global : Global diff --git a/src/compiler/scala/tools/nsc/javac/JavaScanners.scala b/src/compiler/scala/tools/nsc/javac/JavaScanners.scala index 0367119547..7aeae485d0 100644 --- a/src/compiler/scala/tools/nsc/javac/JavaScanners.scala +++ b/src/compiler/scala/tools/nsc/javac/JavaScanners.scala @@ -11,7 +11,7 @@ import scala.reflect.internal.util._ import scala.reflect.internal.Chars._ import JavaTokens._ import scala.annotation.switch -import language.implicitConversions +import scala.language.implicitConversions // Todo merge these better with Scanners trait JavaScanners extends ast.parser.ScannersCommon { diff --git a/src/compiler/scala/tools/nsc/matching/MatchSupport.scala b/src/compiler/scala/tools/nsc/matching/MatchSupport.scala index 6d8c80d1d0..be8f1e3d9e 100644 --- a/src/compiler/scala/tools/nsc/matching/MatchSupport.scala +++ b/src/compiler/scala/tools/nsc/matching/MatchSupport.scala @@ -9,8 +9,8 @@ package matching import transform.ExplicitOuter import ast.{ Printers, Trees } import java.io.{ StringWriter, PrintWriter } -import annotation.elidable -import language.postfixOps +import scala.annotation.elidable +import scala.language.postfixOps /** Ancillary bits of ParallelMatching which are better off * out of the way. diff --git a/src/compiler/scala/tools/nsc/matching/Matrix.scala b/src/compiler/scala/tools/nsc/matching/Matrix.scala index 1cf4bccb40..93e936fe1f 100644 --- a/src/compiler/scala/tools/nsc/matching/Matrix.scala +++ b/src/compiler/scala/tools/nsc/matching/Matrix.scala @@ -9,7 +9,7 @@ package matching import transform.ExplicitOuter import symtab.Flags import scala.collection.mutable -import language.implicitConversions +import scala.language.implicitConversions trait Matrix extends MatrixAdditions { self: ExplicitOuter with ParallelMatching => diff --git a/src/compiler/scala/tools/nsc/matching/ParallelMatching.scala b/src/compiler/scala/tools/nsc/matching/ParallelMatching.scala index 71deb2d356..1d21e4952f 100644 --- a/src/compiler/scala/tools/nsc/matching/ParallelMatching.scala +++ b/src/compiler/scala/tools/nsc/matching/ParallelMatching.scala @@ -13,8 +13,8 @@ import scala.reflect.internal.util.Position import transform.ExplicitOuter import symtab.Flags import mutable.ListBuffer -import annotation.elidable -import language.postfixOps +import scala.annotation.elidable +import scala.language.postfixOps trait ParallelMatching extends ast.TreeDSL with MatchSupport diff --git a/src/compiler/scala/tools/nsc/matching/PatternBindings.scala b/src/compiler/scala/tools/nsc/matching/PatternBindings.scala index 8e043613b8..ee96f15f40 100644 --- a/src/compiler/scala/tools/nsc/matching/PatternBindings.scala +++ b/src/compiler/scala/tools/nsc/matching/PatternBindings.scala @@ -8,7 +8,7 @@ package matching import transform.ExplicitOuter import PartialFunction._ -import language.postfixOps +import scala.language.postfixOps trait PatternBindings extends ast.TreeDSL { diff --git a/src/compiler/scala/tools/nsc/scratchpad/Mixer.scala b/src/compiler/scala/tools/nsc/scratchpad/Mixer.scala index 67ff916b11..f7ad39bd95 100644 --- a/src/compiler/scala/tools/nsc/scratchpad/Mixer.scala +++ b/src/compiler/scala/tools/nsc/scratchpad/Mixer.scala @@ -5,7 +5,7 @@ import java.io.{FileInputStream, InputStreamReader, IOException} import scala.runtime.ScalaRunTime.stringOf import java.lang.reflect.InvocationTargetException import scala.reflect.runtime.ReflectionUtils._ -import collection.mutable.ArrayBuffer +import scala.collection.mutable.ArrayBuffer class Mixer { diff --git a/src/compiler/scala/tools/nsc/scratchpad/SourceInserter.scala b/src/compiler/scala/tools/nsc/scratchpad/SourceInserter.scala index 1c4fad5511..5eeab53fca 100644 --- a/src/compiler/scala/tools/nsc/scratchpad/SourceInserter.scala +++ b/src/compiler/scala/tools/nsc/scratchpad/SourceInserter.scala @@ -3,8 +3,7 @@ package scratchpad import java.io.Writer import scala.reflect.internal.util.SourceFile - -import reflect.internal.Chars._ +import scala.reflect.internal.Chars._ object SourceInserter { def stripRight(cs: Array[Char]): Array[Char] = { diff --git a/src/compiler/scala/tools/nsc/settings/AbsSettings.scala b/src/compiler/scala/tools/nsc/settings/AbsSettings.scala index 120ada965a..78b56a8596 100644 --- a/src/compiler/scala/tools/nsc/settings/AbsSettings.scala +++ b/src/compiler/scala/tools/nsc/settings/AbsSettings.scala @@ -15,7 +15,7 @@ trait AbsSettings extends scala.reflect.internal.settings.AbsSettings { type Setting <: AbsSetting // Fix to the concrete Setting type type ResultOfTryToSet // List[String] in mutable, (Settings, List[String]) in immutable def errorFn: String => Unit - protected def allSettings: collection.Set[Setting] + protected def allSettings: scala.collection.Set[Setting] // settings minus internal usage settings def visibleSettings = allSettings filterNot (_.isInternalOnly) diff --git a/src/compiler/scala/tools/nsc/settings/MutableSettings.scala b/src/compiler/scala/tools/nsc/settings/MutableSettings.scala index 116eed0f31..2ff81ae603 100644 --- a/src/compiler/scala/tools/nsc/settings/MutableSettings.scala +++ b/src/compiler/scala/tools/nsc/settings/MutableSettings.scala @@ -536,7 +536,7 @@ class MutableSettings(val errorFn: String => Unit) } override def tryToSetColon(args: List[String]) = tryToSet(args) override def tryToSetFromPropertyValue(s: String) = tryToSet(s.trim.split(',').toList) - def unparse: List[String] = name :: value + def unparse: List[String] = value map (name + ":" + _) withHelpSyntax(name + ":<" + arg + ">") } diff --git a/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala b/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala index 19392ec23a..3ff7af791b 100644 --- a/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala +++ b/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala @@ -8,10 +8,10 @@ package scala.tools package nsc package settings -import annotation.elidable +import scala.annotation.elidable import scala.tools.util.PathResolver.Defaults import scala.collection.mutable -import language.{implicitConversions, existentials} +import scala.language.{implicitConversions, existentials} trait ScalaSettings extends AbsScalaSettings with StandardScalaSettings diff --git a/src/compiler/scala/tools/nsc/symtab/SymbolLoaders.scala b/src/compiler/scala/tools/nsc/symtab/SymbolLoaders.scala index 8e77f8b6f4..f7c3a55954 100644 --- a/src/compiler/scala/tools/nsc/symtab/SymbolLoaders.scala +++ b/src/compiler/scala/tools/nsc/symtab/SymbolLoaders.scala @@ -10,9 +10,9 @@ import java.io.IOException import scala.compat.Platform.currentTime import scala.tools.nsc.util.{ ClassPath } import classfile.ClassfileParser -import reflect.internal.Flags._ -import reflect.internal.MissingRequirementError -import reflect.internal.util.Statistics +import scala.reflect.internal.Flags._ +import scala.reflect.internal.MissingRequirementError +import scala.reflect.internal.util.Statistics import scala.tools.nsc.io.{ AbstractFile, MsilFile } /** This class ... @@ -300,6 +300,6 @@ abstract class SymbolLoaders { } object SymbolLoadersStats { - import reflect.internal.TypesStats.typerNanos + import scala.reflect.internal.TypesStats.typerNanos val classReadNanos = Statistics.newSubTimer ("time classfilereading", typerNanos) } diff --git a/src/compiler/scala/tools/nsc/symtab/SymbolTable.scala b/src/compiler/scala/tools/nsc/symtab/SymbolTable.scala index c6bd236e8a..7e2741f6bc 100644 --- a/src/compiler/scala/tools/nsc/symtab/SymbolTable.scala +++ b/src/compiler/scala/tools/nsc/symtab/SymbolTable.scala @@ -6,4 +6,4 @@ package scala.tools.nsc package symtab -abstract class SymbolTable extends reflect.internal.SymbolTable
\ No newline at end of file +abstract class SymbolTable extends scala.reflect.internal.SymbolTable diff --git a/src/compiler/scala/tools/nsc/symtab/SymbolTrackers.scala b/src/compiler/scala/tools/nsc/symtab/SymbolTrackers.scala index c596eb014a..d9d25bf95a 100644 --- a/src/compiler/scala/tools/nsc/symtab/SymbolTrackers.scala +++ b/src/compiler/scala/tools/nsc/symtab/SymbolTrackers.scala @@ -7,8 +7,8 @@ package scala.tools.nsc package symtab import scala.collection.{ mutable, immutable } -import language.implicitConversions -import language.postfixOps +import scala.language.implicitConversions +import scala.language.postfixOps /** Printing the symbol graph (for those symbols attached to an AST node) * after each phase. diff --git a/src/compiler/scala/tools/nsc/symtab/classfile/ClassfileParser.scala b/src/compiler/scala/tools/nsc/symtab/classfile/ClassfileParser.scala index b358785714..3c1377e081 100644 --- a/src/compiler/scala/tools/nsc/symtab/classfile/ClassfileParser.scala +++ b/src/compiler/scala/tools/nsc/symtab/classfile/ClassfileParser.scala @@ -1164,7 +1164,7 @@ abstract class ClassfileParser { originalName + " in " + outerName + "(" + externalName +")" } - object innerClasses extends collection.mutable.HashMap[Name, InnerClassEntry] { + object innerClasses extends scala.collection.mutable.HashMap[Name, InnerClassEntry] { /** Return the Symbol of the top level class enclosing `name`, * or 'name's symbol if no entry found for `name`. */ diff --git a/src/compiler/scala/tools/nsc/symtab/classfile/ICodeReader.scala b/src/compiler/scala/tools/nsc/symtab/classfile/ICodeReader.scala index e4338a6421..c02503902e 100644 --- a/src/compiler/scala/tools/nsc/symtab/classfile/ICodeReader.scala +++ b/src/compiler/scala/tools/nsc/symtab/classfile/ICodeReader.scala @@ -37,7 +37,7 @@ abstract class ICodeReader extends ClassfileParser { cls.info // ensure accurate type information isScalaModule = cls.isModule && !cls.isJavaDefined - log("Reading class: " + cls + " isScalaModule?: " + isScalaModule) + log("ICodeReader reading " + cls) val name = cls.javaClassName classPath.findSourceFile(name) match { @@ -99,11 +99,9 @@ abstract class ICodeReader extends ClassfileParser { if (sym == NoSymbol) sym = owner.info.findMember(newTermName(name + nme.LOCAL_SUFFIX_STRING), 0, 0, false).suchThat(_.tpe =:= tpe) if (sym == NoSymbol) { - log("Could not find symbol for " + name + ": " + tpe) - log(owner.info.member(name).tpe + " : " + tpe) sym = if (field) owner.newValue(name, owner.pos, toScalaFieldFlags(jflags)) else dummySym sym setInfoAndEnter tpe - log("added " + sym + ": " + sym.tpe) + log(s"ICodeReader could not locate ${name.decode} in $owner. Created ${sym.defString}.") } (jflags, sym) } @@ -172,10 +170,7 @@ abstract class ICodeReader extends ClassfileParser { } else if (nme.isModuleName(name)) { val strippedName = nme.stripModuleSuffix(name) - val sym = forceMangledName(newTermName(strippedName.decode), true) - - if (sym == NoSymbol) rootMirror.getModule(strippedName) - else sym + forceMangledName(newTermName(strippedName.decode), true) orElse rootMirror.getModule(strippedName) } else { forceMangledName(name, false) @@ -956,7 +951,7 @@ abstract class ICodeReader extends ClassfileParser { case None => checkValidIndex val l = freshLocal(idx, kind, false) - log("Added new local for idx " + idx + ": " + kind) + debuglog("Added new local for idx " + idx + ": " + kind) locals += (idx -> List((l, kind))) l } diff --git a/src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala b/src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala index 3c34cf1c80..b30969d451 100644 --- a/src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala +++ b/src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala @@ -512,7 +512,7 @@ abstract class Pickler extends SubComponent { private def writeName(name: Name) { ensureCapacity(name.length * 3) val utfBytes = Codec toUTF8 name.toString - compat.Platform.arraycopy(utfBytes, 0, bytes, writeIndex, utfBytes.length) + scala.compat.Platform.arraycopy(utfBytes, 0, bytes, writeIndex, utfBytes.length) writeIndex += utfBytes.length } diff --git a/src/compiler/scala/tools/nsc/symtab/classfile/package.scala b/src/compiler/scala/tools/nsc/symtab/classfile/package.scala index fe66c515de..1f9a823bb4 100644 --- a/src/compiler/scala/tools/nsc/symtab/classfile/package.scala +++ b/src/compiler/scala/tools/nsc/symtab/classfile/package.scala @@ -2,6 +2,6 @@ package scala.tools.nsc.symtab package object classfile { - val ClassfileConstants = reflect.internal.ClassfileConstants + val ClassfileConstants = scala.reflect.internal.ClassfileConstants } diff --git a/src/compiler/scala/tools/nsc/symtab/clr/TypeParser.scala b/src/compiler/scala/tools/nsc/symtab/clr/TypeParser.scala index 5e52415ab2..18b95ba191 100644 --- a/src/compiler/scala/tools/nsc/symtab/clr/TypeParser.scala +++ b/src/compiler/scala/tools/nsc/symtab/clr/TypeParser.scala @@ -12,7 +12,7 @@ import ch.epfl.lamp.compiler.msil.{Type => MSILType, Attribute => MSILAttribute, import scala.collection.{ mutable, immutable } import scala.reflect.internal.pickling.UnPickler import ch.epfl.lamp.compiler.msil.Type.TMVarUsage -import language.implicitConversions +import scala.language.implicitConversions /** * @author Nikolay Mihaylov diff --git a/src/compiler/scala/tools/nsc/symtab/package.scala b/src/compiler/scala/tools/nsc/symtab/package.scala index 1cf0d2c2ae..0e6719f225 100644 --- a/src/compiler/scala/tools/nsc/symtab/package.scala +++ b/src/compiler/scala/tools/nsc/symtab/package.scala @@ -2,6 +2,6 @@ package scala.tools.nsc package object symtab { - val Flags = reflect.internal.Flags + val Flags = scala.reflect.internal.Flags } diff --git a/src/compiler/scala/tools/nsc/transform/AddInterfaces.scala b/src/compiler/scala/tools/nsc/transform/AddInterfaces.scala index 182a9505f8..9073fa4504 100644 --- a/src/compiler/scala/tools/nsc/transform/AddInterfaces.scala +++ b/src/compiler/scala/tools/nsc/transform/AddInterfaces.scala @@ -9,7 +9,7 @@ package transform import symtab._ import Flags._ import scala.collection.{ mutable, immutable } -import collection.mutable.ListBuffer +import scala.collection.mutable.ListBuffer abstract class AddInterfaces extends InfoTransform { self: Erasure => import global._ // the global environment @@ -79,12 +79,11 @@ abstract class AddInterfaces extends InfoTransform { self: Erasure => // -optimise and not otherwise, but the classpath can use arbitrary // logic so the classpath must be queried. if (classPath.context.isValidName(implName + ".class")) { - log("unlinking impl class " + implSym) iface.owner.info.decls unlink implSym NoSymbol } else { - log("not unlinking existing " + implSym + " as the impl class is not visible on the classpath.") + log(s"not unlinking $iface's existing implClass ${implSym.name} because it is not on the classpath.") implSym } } @@ -113,9 +112,10 @@ abstract class AddInterfaces extends InfoTransform { self: Erasure => iface.info implClassMap.getOrElse(iface, enteringPhase(implClassPhase) { - log("Creating implClass for " + iface) - if (iface.implClass ne NoSymbol) - log("%s.implClass already exists: %s".format(iface, iface.implClass)) + if (iface.implClass eq NoSymbol) + debuglog(s"${iface.fullLocationString} has no implClass yet, creating it now.") + else + log(s"${iface.fullLocationString} impl class is ${iface.implClass.nameString}") newImplClass(iface) }) @@ -137,7 +137,7 @@ abstract class AddInterfaces extends InfoTransform { self: Erasure => * given the decls ifaceDecls of its interface. */ private def implDecls(implClass: Symbol, ifaceDecls: Scope): Scope = { - log("LazyImplClassType calculating decls for " + implClass) + debuglog("LazyImplClassType calculating decls for " + implClass) val decls = newScope if ((ifaceDecls lookup nme.MIXIN_CONSTRUCTOR) == NoSymbol) { @@ -152,16 +152,16 @@ abstract class AddInterfaces extends InfoTransform { self: Erasure => for (sym <- ifaceDecls) { if (isInterfaceMember(sym)) { if (needsImplMethod(sym)) { - log("Cloning " + sym + " for implementation method in " + implClass) val clone = sym.cloneSymbol(implClass).resetFlag(lateDEFERRED) if (currentRun.compiles(implClass)) implMethodMap(sym) = clone decls enter clone sym setFlag lateDEFERRED + if (!sym.isSpecialized) + log(s"Cloned ${sym.name} from ${sym.owner} into implClass ${implClass.fullName}") } - else log(sym + " needs no implementation method in " + implClass) } else { - log("Destructively modifying owner of %s from %s to %s".format(sym, sym.owner, implClass)) + log(s"Destructively modifying owner of $sym from ${sym.owner} to $implClass") sym.owner = implClass // note: OK to destructively modify the owner here, // because symbol will not be accessible from outside the sourcefile. @@ -174,7 +174,7 @@ abstract class AddInterfaces extends InfoTransform { self: Erasure => } override def complete(implSym: Symbol) { - log("LazyImplClassType completing " + implSym) + debuglog("LazyImplClassType completing " + implSym) /** If `tp` refers to a non-interface trait, return a * reference to its implementation class. Otherwise return `tp`. diff --git a/src/compiler/scala/tools/nsc/transform/CleanUp.scala b/src/compiler/scala/tools/nsc/transform/CleanUp.scala index 3630cb3dbe..d69c8eb831 100644 --- a/src/compiler/scala/tools/nsc/transform/CleanUp.scala +++ b/src/compiler/scala/tools/nsc/transform/CleanUp.scala @@ -9,7 +9,7 @@ package transform import symtab._ import Flags._ import scala.collection._ -import language.postfixOps +import scala.language.postfixOps abstract class CleanUp extends Transform with ast.TreeDSL { import global._ @@ -351,8 +351,8 @@ abstract class CleanUp extends Transform with ast.TreeDSL { /** Normal non-Array call */ def genDefaultCall = { // reflective method call machinery - val invokeName = MethodClass.tpe member nme.invoke_ // reflect.Method.invoke(...) - def cache = REF(reflectiveMethodCache(ad.symbol.name.toString, paramTypes)) // cache Symbol + val invokeName = MethodClass.tpe member nme.invoke_ // scala.reflect.Method.invoke(...) + def cache = REF(reflectiveMethodCache(ad.symbol.name.toString, paramTypes)) // cache Symbol def lookup = Apply(cache, List(qual1() GETCLASS)) // get Method object from cache def invokeArgs = ArrayValue(TypeTree(ObjectClass.tpe), params) // args for invocation def invocation = (lookup DOT invokeName)(qual1(), invokeArgs) // .invoke(qual1, ...) diff --git a/src/compiler/scala/tools/nsc/transform/Erasure.scala b/src/compiler/scala/tools/nsc/transform/Erasure.scala index 6c8417eb56..2c989af003 100644 --- a/src/compiler/scala/tools/nsc/transform/Erasure.scala +++ b/src/compiler/scala/tools/nsc/transform/Erasure.scala @@ -12,7 +12,7 @@ import symtab._ import Flags._ abstract class Erasure extends AddInterfaces - with reflect.internal.transform.Erasure + with scala.reflect.internal.transform.Erasure with typechecker.Analyzer with TypingTransformers with ast.TreeDSL @@ -326,7 +326,7 @@ abstract class Erasure extends AddInterfaces } // Methods on Any/Object which we rewrite here while we still know what // is a primitive and what arrived boxed. - private lazy val interceptedMethods = Set[Symbol](Any_##, Object_##, Any_getClass) ++ ( + private lazy val interceptedMethods = Set[Symbol](Any_##, Object_##, Any_getClass, AnyVal_getClass) ++ ( // Each value class has its own getClass for ultra-precise class object typing. ScalaValueClasses map (_.tpe member nme.getClass_) ) @@ -490,7 +490,7 @@ abstract class Erasure extends AddInterfaces @inline private def box(tree: Tree, target: => String): Tree = { val result = box1(tree) - log("boxing "+tree+":"+tree.tpe+" to "+target+" = "+result+":"+result.tpe) + log(s"boxing ${tree.summaryString}: ${tree.tpe} into $target: ${result.tpe}") result } @@ -525,7 +525,7 @@ abstract class Erasure extends AddInterfaces * fields (see TupleX). (ID) */ case Apply(boxFun, List(arg)) if isUnbox(tree.symbol) && safeToRemoveUnbox(arg.tpe.typeSymbol) => - log("boxing an unbox: " + tree + "/" + tree.symbol + " and replying with " + arg + " of type " + arg.tpe) + log(s"boxing an unbox: ${tree.symbol} -> ${arg.tpe}") arg case _ => (REF(boxMethod(x)) APPLY tree) setPos (tree.pos) setType ObjectClass.tpe @@ -537,7 +537,7 @@ abstract class Erasure extends AddInterfaces private def unbox(tree: Tree, pt: Type): Tree = { val result = unbox1(tree, pt) - log("unboxing "+tree+":"+tree.tpe+" to "+pt+" = "+result+":"+result.tpe) + log(s"unboxing ${tree.summaryString}: ${tree.tpe} with pt=$pt as type ${result.tpe}") result } @@ -614,7 +614,7 @@ abstract class Erasure extends AddInterfaces * @return the adapted tree */ private def adaptToType(tree: Tree, pt: Type): Tree = { - //if (settings.debug.value && pt != WildcardType) + if (settings.debug.value && pt != WildcardType) log("adapting " + tree + ":" + tree.tpe + " : " + tree.tpe.parents + " to " + pt)//debug if (tree.tpe <:< pt) tree @@ -1085,6 +1085,8 @@ abstract class Erasure extends AddInterfaces } else if (isPrimitiveValueClass(qual.tpe.typeSymbol)) { // Rewrite 5.getClass to ScalaRunTime.anyValClass(5) global.typer.typed(gen.mkRuntimeCall(nme.anyValClass, List(qual, typer.resolveClassTag(tree.pos, qual.tpe.widen)))) + } else if (fn.symbol == AnyVal_getClass) { + tree setSymbol Object_getClass } else { tree } @@ -1092,8 +1094,8 @@ abstract class Erasure extends AddInterfaces case New(tpt) if name == nme.CONSTRUCTOR && tpt.tpe.typeSymbol.isDerivedValueClass => // println("inject derived: "+arg+" "+tpt.tpe) val List(arg) = args - InjectDerivedValue(arg) addAttachment //@@@ setSymbol tpt.tpe.typeSymbol - new TypeRefAttachment(tree.tpe.asInstanceOf[TypeRef]) + val attachment = new TypeRefAttachment(tree.tpe.asInstanceOf[TypeRef]) + InjectDerivedValue(arg) addAttachment attachment case _ => preEraseNormalApply(tree) } diff --git a/src/compiler/scala/tools/nsc/transform/Flatten.scala b/src/compiler/scala/tools/nsc/transform/Flatten.scala index de2f96c378..e2913bea0d 100644 --- a/src/compiler/scala/tools/nsc/transform/Flatten.scala +++ b/src/compiler/scala/tools/nsc/transform/Flatten.scala @@ -22,12 +22,14 @@ abstract class Flatten extends InfoTransform { */ private def replaceSymbolInCurrentScope(sym: Symbol): Symbol = exitingFlatten { val scope = sym.owner.info.decls - val old = scope lookup sym.name - if (old ne NoSymbol) - scope unlink old - + val old = scope lookup sym.name andAlso scope.unlink scope enter sym - log("lifted " + sym.fullLocationString) + + if (old eq NoSymbol) + log(s"lifted ${sym.fullLocationString}") + else + log(s"lifted ${sym.fullLocationString} after unlinking existing $old from scope.") + old } @@ -35,9 +37,7 @@ abstract class Flatten extends InfoTransform { if (!sym.isLifted) { sym setFlag LIFTED debuglog("re-enter " + sym.fullLocationString) - val old = replaceSymbolInCurrentScope(sym) - if (old ne NoSymbol) - log("unlinked " + old.fullLocationString + " after lifting " + sym) + replaceSymbolInCurrentScope(sym) } } private def liftSymbol(sym: Symbol) { diff --git a/src/compiler/scala/tools/nsc/transform/Mixin.scala b/src/compiler/scala/tools/nsc/transform/Mixin.scala index e5d365f1d2..27ceb66af4 100644 --- a/src/compiler/scala/tools/nsc/transform/Mixin.scala +++ b/src/compiler/scala/tools/nsc/transform/Mixin.scala @@ -430,7 +430,7 @@ abstract class Mixin extends InfoTransform with ast.TreeDSL { * * Such fields will be nulled after the initializer has memoized the lazy value. */ - def singleUseFields(templ: Template): collection.Map[Symbol, List[Symbol]] = { + def singleUseFields(templ: Template): scala.collection.Map[Symbol, List[Symbol]] = { val usedIn = mutable.HashMap[Symbol, List[Symbol]]() withDefaultValue Nil object SingleUseTraverser extends Traverser { diff --git a/src/compiler/scala/tools/nsc/transform/OverridingPairs.scala b/src/compiler/scala/tools/nsc/transform/OverridingPairs.scala index 982b7a680e..1e360c09d3 100644 --- a/src/compiler/scala/tools/nsc/transform/OverridingPairs.scala +++ b/src/compiler/scala/tools/nsc/transform/OverridingPairs.scala @@ -9,7 +9,7 @@ package transform import scala.collection.mutable import symtab.Flags._ import util.HashSet -import annotation.tailrec +import scala.annotation.tailrec /** A class that yields a kind of iterator (`Cursor`), * which yields all pairs of overriding/overridden symbols diff --git a/src/compiler/scala/tools/nsc/transform/SpecializeTypes.scala b/src/compiler/scala/tools/nsc/transform/SpecializeTypes.scala index 6a6d0cdea1..998cf17716 100644 --- a/src/compiler/scala/tools/nsc/transform/SpecializeTypes.scala +++ b/src/compiler/scala/tools/nsc/transform/SpecializeTypes.scala @@ -8,8 +8,8 @@ package transform import scala.tools.nsc.symtab.Flags import scala.collection.{ mutable, immutable } -import language.postfixOps -import language.existentials +import scala.language.postfixOps +import scala.language.existentials /** Specialize code on types. * @@ -461,7 +461,7 @@ abstract class SpecializeTypes extends InfoTransform with TypingTransformers { val sClassMap = anyrefSpecCache.getOrElseUpdate(sClass, mutable.Map[Symbol, Symbol]()) sClassMap.getOrElseUpdate(tparam, - tparam.cloneSymbol(sClass, tparam.flags, (tparam.name append tpnme.SPECIALIZED_SUFFIX).asInstanceOf[Name]) // [Eugene] why do we need this cast? + tparam.cloneSymbol(sClass, tparam.flags, tparam.name append tpnme.SPECIALIZED_SUFFIX) modifyInfo (info => TypeBounds(info.bounds.lo, AnyRefClass.tpe)) ).tpe } @@ -836,12 +836,17 @@ abstract class SpecializeTypes extends InfoTransform with TypingTransformers { specializingOn = specializingOn filterNot (unusedStvars contains) } for (env0 <- specializations(specializingOn) if needsSpecialization(env0, sym)) yield { + // !!! Can't this logic be structured so that the new symbol's name is + // known when the symbol is cloned? It is much cleaner not to be mutating + // names after the fact. And it adds about a billion lines of + // "Renaming value _1 in class Tuple2 to _1$mcZ$sp" to obscure the small + // number of other (important) actual symbol renamings. val tps = survivingParams(sym.info.typeParams, env0) - val specMember = sym.cloneSymbol(owner, (sym.flags | SPECIALIZED) & ~DEFERRED) + val specMember = sym.cloneSymbol(owner, (sym.flags | SPECIALIZED) & ~DEFERRED) // <-- this needs newName = ... val env = mapAnyRefsInSpecSym(env0, sym, specMember) val (keys, vals) = env.toList.unzip - specMember setName specializedName(sym, env) + specMember setName specializedName(sym, env) // <-- but the name is calculated based on the cloned symbol // debuglog("%s normalizes to %s%s".format(sym, specMember, // if (tps.isEmpty) "" else " with params " + tps.mkString(", "))) @@ -923,7 +928,7 @@ abstract class SpecializeTypes extends InfoTransform with TypingTransformers { val newFlags = (sym.flags | SPECIALIZED) & ~(DEFERRED | CASEACCESSOR) // this method properly duplicates the symbol's info val specname = specializedName(nameSymbol orElse sym, env) - ( sym.cloneSymbol(owner, newFlags, specname) + ( sym.cloneSymbol(owner, newFlags, newName = specname) modifyInfo (info => subst(env, info.asSeenFrom(owner.thisType, sym.owner))) ) } @@ -938,7 +943,7 @@ abstract class SpecializeTypes extends InfoTransform with TypingTransformers { * * this method will return List('apply$mcII$sp') */ - private def specialOverrides(clazz: Symbol) = logResultIf[List[Symbol]]("specialOverrides(" + clazz + ")", _.nonEmpty) { + private def specialOverrides(clazz: Symbol) = logResultIf[List[Symbol]]("specialized overrides in " + clazz, _.nonEmpty) { /** Return the overridden symbol in syms that needs a specialized overriding symbol, * together with its specialization environment. The overridden symbol may not be * the closest to 'overriding', in a given hierarchy. diff --git a/src/compiler/scala/tools/nsc/transform/UnCurry.scala b/src/compiler/scala/tools/nsc/transform/UnCurry.scala index 816fedb0ed..d541b7be0a 100644 --- a/src/compiler/scala/tools/nsc/transform/UnCurry.scala +++ b/src/compiler/scala/tools/nsc/transform/UnCurry.scala @@ -8,7 +8,7 @@ package transform import symtab.Flags._ import scala.collection.{ mutable, immutable } -import language.postfixOps +import scala.language.postfixOps /*<export> */ /** - uncurry all symbol and tree types (@see UnCurryPhase) -- this includes normalizing all proper types. @@ -44,7 +44,7 @@ import language.postfixOps */ /*</export> */ abstract class UnCurry extends InfoTransform - with reflect.internal.transform.UnCurry + with scala.reflect.internal.transform.UnCurry with TypingTransformers with ast.TreeDSL { val global: Global // need to repeat here because otherwise last mixin defines global as // SymbolTable. If we had DOT this would not be an issue @@ -218,11 +218,6 @@ abstract class UnCurry extends InfoTransform /** Undo eta expansion for parameterless and nullary methods */ def deEta(fun: Function): Tree = fun match { - case Function(List(), Apply(expr, List())) if treeInfo.isExprSafeToInline(expr) => - if (expr hasSymbolWhich (_.isLazy)) - fun - else - expr case Function(List(), expr) if isByNameRef(expr) => noApply += expr expr @@ -490,11 +485,7 @@ abstract class UnCurry extends InfoTransform arg setType functionType(Nil, arg.tpe) } else { - log("byname | %s | %s | %s".format( - arg.pos.source.path + ":" + arg.pos.line, fun.fullName, - if (fun.isPrivate) "private" else "") - ) - + log(s"Argument '$arg' at line ${arg.pos.safeLine} is $formal from ${fun.fullName}") arg match { // don't add a thunk for by-name argument if argument already is an application of // a Function0. We can then remove the application and use the existing Function0. diff --git a/src/compiler/scala/tools/nsc/typechecker/Analyzer.scala b/src/compiler/scala/tools/nsc/typechecker/Analyzer.scala index 8218289f93..3526d932d3 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Analyzer.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Analyzer.scala @@ -6,7 +6,7 @@ package scala.tools.nsc package typechecker -import reflect.internal.util.Statistics +import scala.reflect.internal.util.Statistics /** The main attribution phase. */ @@ -72,7 +72,7 @@ trait Analyzer extends AnyRef } object typerFactory extends SubComponent { - import reflect.internal.TypesStats.typerNanos + import scala.reflect.internal.TypesStats.typerNanos val global: Analyzer.this.global.type = Analyzer.this.global val phaseName = "typer" val runsAfter = List[String]() diff --git a/src/compiler/scala/tools/nsc/typechecker/ContextErrors.scala b/src/compiler/scala/tools/nsc/typechecker/ContextErrors.scala index 6b69184d0a..f9f61b10a4 100644 --- a/src/compiler/scala/tools/nsc/typechecker/ContextErrors.scala +++ b/src/compiler/scala/tools/nsc/typechecker/ContextErrors.scala @@ -467,9 +467,6 @@ trait ContextErrors { def NamedAndDefaultArgumentsNotSupportedForMacros(tree: Tree, fun: Tree) = NormalTypeError(tree, "macros application do not support named and/or default arguments") - def WrongNumberOfArgsError(tree: Tree, fun: Tree) = - NormalTypeError(tree, "wrong number of arguments for "+ treeSymTypeMsg(fun)) - def TooManyArgsNamesDefaultsError(tree: Tree, fun: Tree) = NormalTypeError(tree, "too many arguments for "+treeSymTypeMsg(fun)) @@ -509,8 +506,8 @@ trait ContextErrors { def TooManyArgsPatternError(fun: Tree) = NormalTypeError(fun, "too many arguments for unapply pattern, maximum = "+definitions.MaxTupleArity) - def WrongNumberArgsPatternError(tree: Tree, fun: Tree) = - NormalTypeError(tree, "wrong number of arguments for "+treeSymTypeMsg(fun)) + def WrongNumberOfArgsError(tree: Tree, fun: Tree) = + NormalTypeError(tree, "wrong number of arguments for "+ treeSymTypeMsg(fun)) def ApplyWithoutArgsError(tree: Tree, fun: Tree) = NormalTypeError(tree, fun.tpe+" does not take parameters") @@ -738,7 +735,7 @@ trait ContextErrors { ) val forgotten = ( if (sym.isTerm) "splice when splicing this variable into a reifee" - else "c.AbsTypeTag annotation for this type parameter" + else "c.WeakTypeTag annotation for this type parameter" ) macroExpansionError(expandee, template(sym.name.nameKind).format(sym.name + " " + sym.origin, forgotten)) } @@ -1234,7 +1231,7 @@ trait ContextErrors { message + suffix } - private def abbreviateCoreAliases(s: String): String = List("AbsTypeTag", "Expr").foldLeft(s)((res, x) => res.replace("c.universe." + x, "c." + x)) + private def abbreviateCoreAliases(s: String): String = List("WeakTypeTag", "Expr").foldLeft(s)((res, x) => res.replace("c.universe." + x, "c." + x)) private def showMeth(pss: List[List[Symbol]], restpe: Type, abbreviate: Boolean) = { var argsPart = (pss map (ps => ps map (_.defString) mkString ("(", ", ", ")"))).mkString @@ -1313,7 +1310,7 @@ trait ContextErrors { // aXXX (e.g. aparams) => characteristics of the macro impl ("a" stands for "actual") // rXXX (e.g. rparams) => characteristics of a reference macro impl signature synthesized from the macro def ("r" stands for "reference") - def MacroImplNonTagImplicitParameters(params: List[Symbol]) = compatibilityError("macro implementations cannot have implicit parameters other than AbsTypeTag evidences") + def MacroImplNonTagImplicitParameters(params: List[Symbol]) = compatibilityError("macro implementations cannot have implicit parameters other than WeakTypeTag evidences") def MacroImplParamssMismatchError() = compatibilityError("number of parameter sections differ") diff --git a/src/compiler/scala/tools/nsc/typechecker/Contexts.scala b/src/compiler/scala/tools/nsc/typechecker/Contexts.scala index 6a908c6c65..dbf769c79f 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Contexts.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Contexts.scala @@ -8,7 +8,7 @@ package typechecker import symtab.Flags._ import scala.collection.mutable.{LinkedHashSet, Set} -import annotation.tailrec +import scala.annotation.tailrec /** * @author Martin Odersky diff --git a/src/compiler/scala/tools/nsc/typechecker/DestructureTypes.scala b/src/compiler/scala/tools/nsc/typechecker/DestructureTypes.scala index 5802d36878..6a21639391 100644 --- a/src/compiler/scala/tools/nsc/typechecker/DestructureTypes.scala +++ b/src/compiler/scala/tools/nsc/typechecker/DestructureTypes.scala @@ -6,7 +6,7 @@ package scala.tools.nsc package typechecker -import language.implicitConversions +import scala.language.implicitConversions /** A generic means of breaking down types into their subcomponents. * Types are decomposed top down, and recognizable substructure is diff --git a/src/compiler/scala/tools/nsc/typechecker/Duplicators.scala b/src/compiler/scala/tools/nsc/typechecker/Duplicators.scala index 745250e167..2dd0836322 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Duplicators.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Duplicators.scala @@ -29,7 +29,7 @@ abstract class Duplicators extends Analyzer { * the old class with the new class, and map symbols through the given 'env'. The * environment is a map from type skolems to concrete types (see SpecializedTypes). */ - def retyped(context: Context, tree: Tree, oldThis: Symbol, newThis: Symbol, env: collection.Map[Symbol, Type]): Tree = { + def retyped(context: Context, tree: Tree, oldThis: Symbol, newThis: Symbol, env: scala.collection.Map[Symbol, Type]): Tree = { if (oldThis ne newThis) { oldClassOwner = oldThis newClassOwner = newThis diff --git a/src/compiler/scala/tools/nsc/typechecker/Implicits.scala b/src/compiler/scala/tools/nsc/typechecker/Implicits.scala index 6a91922b4c..e3f0756b6c 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Implicits.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Implicits.scala @@ -11,13 +11,13 @@ package scala.tools.nsc package typechecker -import annotation.tailrec +import scala.annotation.tailrec import scala.collection.{ mutable, immutable } import mutable.{ LinkedHashMap, ListBuffer } import scala.util.matching.Regex import symtab.Flags._ import scala.reflect.internal.util.Statistics -import language.implicitConversions +import scala.language.implicitConversions /** This trait provides methods to find various kinds of implicits. * @@ -1151,7 +1151,7 @@ trait Implicits { private def TagSymbols = TagMaterializers.keySet private val TagMaterializers = Map[Symbol, Symbol]( ClassTagClass -> MacroInternal_materializeClassTag, - AbsTypeTagClass -> MacroInternal_materializeAbsTypeTag, + WeakTypeTagClass -> MacroInternal_materializeWeakTypeTag, TypeTagClass -> MacroInternal_materializeTypeTag ) @@ -1217,14 +1217,14 @@ trait Implicits { private val ManifestSymbols = Set[Symbol](PartialManifestClass, FullManifestClass, OptManifestClass) /** Creates a tree that calls the relevant factory method in object - * reflect.Manifest for type 'tp'. An EmptyTree is returned if + * scala.reflect.Manifest for type 'tp'. An EmptyTree is returned if * no manifest is found. todo: make this instantiate take type params as well? */ private def manifestOfType(tp: Type, flavor: Symbol): SearchResult = { val full = flavor == FullManifestClass val opt = flavor == OptManifestClass - /** Creates a tree that calls the factory method called constructor in object reflect.Manifest */ + /** Creates a tree that calls the factory method called constructor in object scala.reflect.Manifest */ def manifestFactoryCall(constructor: String, tparg: Type, args: Tree*): Tree = if (args contains EmptyTree) EmptyTree else typedPos(tree.pos.focus) { @@ -1472,7 +1472,7 @@ trait Implicits { interpolate(msg, Map((typeParamNames zip typeArgs): _*)) // TODO: give access to the name and type of the implicit argument, etc? def validate: Option[String] = { - import scala.util.matching.Regex; import collection.breakOut + import scala.util.matching.Regex; import scala.collection.breakOut // is there a shorter way to avoid the intermediate toList? val refs = """\$\{([^}]+)\}""".r.findAllIn(msg).matchData.map(_ group 1).toSet val decls = typeParamNames.toSet @@ -1492,7 +1492,7 @@ trait Implicits { object ImplicitsStats { - import reflect.internal.TypesStats._ + import scala.reflect.internal.TypesStats._ val rawTypeImpl = Statistics.newSubCounter (" of which in implicits", rawTypeCount) val subtypeImpl = Statistics.newSubCounter(" of which in implicit", subtypeCount) diff --git a/src/compiler/scala/tools/nsc/typechecker/Infer.scala b/src/compiler/scala/tools/nsc/typechecker/Infer.scala index 96dcbb5b80..12766116d1 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Infer.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Infer.scala @@ -941,10 +941,13 @@ trait Infer { /** Is sym1 (or its companion class in case it is a module) a subclass of * sym2 (or its companion class in case it is a module)? */ - def isProperSubClassOrObject(sym1: Symbol, sym2: Symbol): Boolean = - sym1 != sym2 && sym1 != NoSymbol && (sym1 isSubClass sym2) || - sym1.isModuleClass && isProperSubClassOrObject(sym1.linkedClassOfClass, sym2) || - sym2.isModuleClass && isProperSubClassOrObject(sym1, sym2.linkedClassOfClass) + def isProperSubClassOrObject(sym1: Symbol, sym2: Symbol): Boolean = ( + (sym1 != sym2) && (sym1 != NoSymbol) && ( + (sym1 isSubClass sym2) + || (sym1.isModuleClass && isProperSubClassOrObject(sym1.linkedClassOfClass, sym2)) + || (sym2.isModuleClass && isProperSubClassOrObject(sym1, sym2.linkedClassOfClass)) + ) + ) /** is symbol `sym1` defined in a proper subclass of symbol `sym2`? */ diff --git a/src/compiler/scala/tools/nsc/typechecker/Macros.scala b/src/compiler/scala/tools/nsc/typechecker/Macros.scala index 01e773e528..7e9b288853 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Macros.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Macros.scala @@ -7,7 +7,7 @@ import scala.tools.nsc.util.ClassPath._ import scala.reflect.runtime.ReflectionUtils import scala.collection.mutable.ListBuffer import scala.compat.Platform.EOL -import reflect.internal.util.Statistics +import scala.reflect.internal.util.Statistics import scala.reflect.macros.util._ import java.lang.{Class => jClass} import java.lang.reflect.{Array => jArray, Method => jMethod} @@ -26,7 +26,7 @@ import scala.reflect.macros.runtime.AbortMacroException * * Then fooBar needs to point to a static method of the following form: * - * def fooBar[T: c.AbsTypeTag] // type tag annotation is optional + * def fooBar[T: c.WeakTypeTag] // type tag annotation is optional * (c: scala.reflect.macros.Context) * (xs: c.Expr[List[T]]) * : c.Expr[T] = { @@ -84,7 +84,7 @@ trait Macros extends scala.tools.reflect.FastTrack with Traces { val methName: String, // flattens the macro impl's parameter lists having symbols replaced with metadata // currently metadata is an index of the type parameter corresponding to that type tag (if applicable) - // f.ex. for: def impl[T: AbsTypeTag, U: AbsTypeTag, V](c: Context)(x: c.Expr[T]): (U, V) = ??? + // f.ex. for: def impl[T: WeakTypeTag, U: WeakTypeTag, V](c: Context)(x: c.Expr[T]): (U, V) = ??? // `signature` will be equal to List(-1, -1, 0, 1) val signature: List[Int], // type arguments part of a macro impl ref (the right-hand side of a macro definition) @@ -216,7 +216,7 @@ trait Macros extends scala.tools.reflect.FastTrack with Traces { } /** Transforms parameters lists of a macro impl. - * The `transform` function is invoked only for AbsTypeTag evidence parameters. + * The `transform` function is invoked only for WeakTypeTag evidence parameters. * * The transformer takes two arguments: a value parameter from the parameter list * and a type parameter that is witnesses by the value parameter. @@ -232,7 +232,7 @@ trait Macros extends scala.tools.reflect.FastTrack with Traces { if (paramss.isEmpty || paramss.last.isEmpty) return paramss // no implicit parameters in the signature => nothing to do if (paramss.head.isEmpty || !(paramss.head.head.tpe <:< MacroContextClass.tpe)) return paramss // no context parameter in the signature => nothing to do def transformTag(param: Symbol): Symbol = param.tpe.dealias match { - case TypeRef(SingleType(SingleType(NoPrefix, c), universe), AbsTypeTagClass, targ :: Nil) + case TypeRef(SingleType(SingleType(NoPrefix, c), universe), WeakTypeTagClass, targ :: Nil) if c == paramss.head.head && universe == MacroContextUniverse => transform(param, targ.typeSymbol) case _ => @@ -336,7 +336,7 @@ trait Macros extends scala.tools.reflect.FastTrack with Traces { RepeatedParamClass.typeConstructor, List(implType(isType, sigma(origTpe.typeArgs.head)))) else { - val tsym = getMember(MacroContextClass, if (isType) tpnme.AbsTypeTag else tpnme.Expr) + val tsym = getMember(MacroContextClass, if (isType) tpnme.WeakTypeTag else tpnme.Expr) typeRef(singleType(NoPrefix, ctxParam), tsym, List(sigma(origTpe))) } val paramCache = collection.mutable.Map[Symbol, Symbol]() @@ -630,7 +630,7 @@ trait Macros extends scala.tools.reflect.FastTrack with Traces { macroDef.owner) } else targ.tpe - if (tpe.isConcrete) context.TypeTag(tpe) else context.AbsTypeTag(tpe) + context.WeakTypeTag(tpe) }) macroTraceVerbose("tags: ")(tags) @@ -832,7 +832,7 @@ trait Macros extends scala.tools.reflect.FastTrack with Traces { var hasPendingMacroExpansions = false private val delayed = perRunCaches.newWeakMap[Tree, collection.mutable.Set[Int]] private def isDelayed(expandee: Tree) = delayed contains expandee - private def calculateUndetparams(expandee: Tree): collection.mutable.Set[Int] = + private def calculateUndetparams(expandee: Tree): scala.collection.mutable.Set[Int] = delayed.get(expandee).getOrElse { val calculated = collection.mutable.Set[Symbol]() expandee foreach (sub => { @@ -872,13 +872,13 @@ trait Macros extends scala.tools.reflect.FastTrack with Traces { new Transformer { override def transform(tree: Tree) = super.transform(tree match { // todo. expansion should work from the inside out - case wannabe if (delayed contains wannabe) && calculateUndetparams(wannabe).isEmpty => - val context = wannabe.attachments.get[MacroRuntimeAttachment].get.typerContext - delayed -= wannabe + case tree if (delayed contains tree) && calculateUndetparams(tree).isEmpty => + val context = tree.attachments.get[MacroRuntimeAttachment].get.typerContext + delayed -= tree context.implicitsEnabled = typer.context.implicitsEnabled context.enrichmentEnabled = typer.context.enrichmentEnabled context.macrosEnabled = typer.context.macrosEnabled - macroExpand(newTyper(context), wannabe, EXPRmode, WildcardType) + macroExpand(newTyper(context), tree, EXPRmode, WildcardType) case _ => tree }) @@ -886,7 +886,7 @@ trait Macros extends scala.tools.reflect.FastTrack with Traces { } object MacrosStats { - import reflect.internal.TypesStats.typerNanos + import scala.reflect.internal.TypesStats.typerNanos val macroExpandCount = Statistics.newCounter ("#macro expansions", "typer") val macroExpandNanos = Statistics.newSubTimer("time spent in macroExpand", typerNanos) } diff --git a/src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala b/src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala index 4f597f97c9..91dcd90962 100644 --- a/src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala +++ b/src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala @@ -10,7 +10,7 @@ import scala.collection.{ mutable, immutable } import scala.reflect.internal.util.StringOps.{ ojoin } import scala.reflect.ClassTag import scala.reflect.runtime.{ universe => ru } -import language.higherKinds +import scala.language.higherKinds /** Logic related to method synthesis which involves cooperation between * Namer and Typer. @@ -369,7 +369,7 @@ trait MethodSynthesis { } /** A synthetic method which performs the implicit conversion implied by - * the declaration of an implicit class. Yet to be written. + * the declaration of an implicit class. */ case class ImplicitClassWrapper(tree: ClassDef) extends DerivedFromClassDef { def completer(sym: Symbol): Type = ??? // not needed @@ -377,7 +377,7 @@ trait MethodSynthesis { def derivedSym: Symbol = { // Only methods will do! Don't want to pick up any stray // companion objects of the same name. - val result = enclClass.info decl name suchThat (_.isMethod) + val result = enclClass.info decl name suchThat (x => x.isMethod && x.isSynthetic) assert(result != NoSymbol, "not found: "+name+" in "+enclClass+" "+enclClass.info.decls) result } diff --git a/src/compiler/scala/tools/nsc/typechecker/Namers.scala b/src/compiler/scala/tools/nsc/typechecker/Namers.scala index 18b3fe5f4c..7f14216e76 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Namers.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Namers.scala @@ -359,10 +359,39 @@ trait Namers extends MethodSynthesis { } } + /** Given a ClassDef or ModuleDef, verifies there isn't a companion which + * has been defined in a separate file. + */ + private def validateCompanionDefs(tree: ImplDef) { + val sym = tree.symbol + if (sym eq NoSymbol) return + + val ctx = if (context.owner.isPackageObjectClass) context.outer else context + val module = if (sym.isModule) sym else ctx.scope lookup tree.name.toTermName + val clazz = if (sym.isClass) sym else ctx.scope lookup tree.name.toTypeName + val fails = ( + module.isModule + && clazz.isClass + && !module.isSynthetic + && !clazz.isSynthetic + && (clazz.sourceFile ne null) + && (module.sourceFile ne null) + && !(module isCoDefinedWith clazz) + ) + if (fails) { + context.unit.error(tree.pos, ( + s"Companions '$clazz' and '$module' must be defined in same file:\n" + + s" Found in ${clazz.sourceFile.canonicalPath} and ${module.sourceFile.canonicalPath}") + ) + } + } + def enterModuleDef(tree: ModuleDef) = { val sym = enterModuleSymbol(tree) sym.moduleClass setInfo namerOf(sym).moduleClassTypeCompleter(tree) sym setInfo completerOf(tree) + validateCompanionDefs(tree) + sym } /** Enter a module symbol. The tree parameter can be either @@ -467,7 +496,6 @@ trait Namers extends MethodSynthesis { // for Java code importing Scala objects if (!nme.isModuleName(from) || isValid(nme.stripModuleSuffix(from))) { typer.TyperErrorGen.NotAMemberError(tree, expr, from) - typer.infer.setError(tree) } } // Setting the position at the import means that if there is @@ -635,6 +663,7 @@ trait Namers extends MethodSynthesis { } else context.unit.error(tree.pos, "implicit classes must accept exactly one primary constructor parameter") } + validateCompanionDefs(tree) } // this logic is needed in case typer was interrupted half @@ -699,7 +728,7 @@ trait Namers extends MethodSynthesis { // } } - def moduleClassTypeCompleter(tree: Tree) = { + def moduleClassTypeCompleter(tree: ModuleDef) = { mkTypeCompleter(tree) { sym => val moduleSymbol = tree.symbol assert(moduleSymbol.moduleClass == sym, moduleSymbol.moduleClass) @@ -1545,18 +1574,11 @@ trait Namers extends MethodSynthesis { * call this method? */ def companionSymbolOf(original: Symbol, ctx: Context): Symbol = { - try { - original.companionSymbol orElse { - ctx.lookup(original.name.companionName, original.owner).suchThat(sym => - (original.isTerm || sym.hasModuleFlag) && - (sym isCoDefinedWith original) - ) - } - } - catch { - case e: InvalidCompanions => - ctx.unit.error(original.pos, e.getMessage) - NoSymbol + original.companionSymbol orElse { + ctx.lookup(original.name.companionName, original.owner).suchThat(sym => + (original.isTerm || sym.hasModuleFlag) && + (sym isCoDefinedWith original) + ) } } } diff --git a/src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala b/src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala index 14c9aca078..7a035bb33b 100644 --- a/src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala +++ b/src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala @@ -9,12 +9,12 @@ package typechecker import symtab._ import Flags.{MUTABLE, METHOD, LABEL, SYNTHETIC, ARTIFACT} -import language.postfixOps +import scala.language.postfixOps import scala.tools.nsc.transform.TypingTransformers import scala.tools.nsc.transform.Transform import scala.collection.mutable.HashSet import scala.collection.mutable.HashMap -import reflect.internal.util.Statistics +import scala.reflect.internal.util.Statistics import scala.reflect.internal.Types /** Translate pattern matching. @@ -2941,7 +2941,7 @@ trait PatternMatching extends Transform with TypingTransformers with ast.TreeDSL } // node in the tree that describes how to construct a counter-example - case class VariableAssignment(variable: Var, equalTo: List[Const], notEqualTo: List[Const], fields: collection.mutable.Map[Symbol, VariableAssignment]) { + case class VariableAssignment(variable: Var, equalTo: List[Const], notEqualTo: List[Const], fields: scala.collection.mutable.Map[Symbol, VariableAssignment]) { // need to prune since the model now incorporates all super types of a constant (needed for reachability) private lazy val uniqueEqualTo = equalTo filterNot (subsumed => equalTo.exists(better => (better ne subsumed) && instanceOfTpImplies(better.tp, subsumed.tp))) private lazy val prunedEqualTo = uniqueEqualTo filterNot (subsumed => variable.staticTpCheckable <:< subsumed.tp) diff --git a/src/compiler/scala/tools/nsc/typechecker/RefChecks.scala b/src/compiler/scala/tools/nsc/typechecker/RefChecks.scala index 93a8dfc9cb..2335a9e3b6 100644 --- a/src/compiler/scala/tools/nsc/typechecker/RefChecks.scala +++ b/src/compiler/scala/tools/nsc/typechecker/RefChecks.scala @@ -7,10 +7,10 @@ package scala.tools.nsc package typechecker import symtab.Flags._ -import collection.{ mutable, immutable } +import scala.collection.{ mutable, immutable } import transform.InfoTransform import scala.collection.mutable.ListBuffer -import language.postfixOps +import scala.language.postfixOps /** <p> * Post-attribution checking and transformation. @@ -38,7 +38,7 @@ import language.postfixOps * * @todo Check whether we always check type parameter bounds. */ -abstract class RefChecks extends InfoTransform with reflect.internal.transform.RefChecks { +abstract class RefChecks extends InfoTransform with scala.reflect.internal.transform.RefChecks { val global: Global // need to repeat here because otherwise last mixin defines global as // SymbolTable. If we had DOT this would not be an issue @@ -430,6 +430,7 @@ abstract class RefChecks extends InfoTransform with reflect.internal.transform.R overrideError("cannot override a macro") } else { checkOverrideTypes() + checkOverrideDeprecated() if (settings.warnNullaryOverride.value) { if (other.paramss.isEmpty && !member.paramss.isEmpty) { unit.warning(member.pos, "non-nullary method overrides nullary method") @@ -508,6 +509,14 @@ abstract class RefChecks extends InfoTransform with reflect.internal.transform.R } } } + + def checkOverrideDeprecated() { + if (other.hasDeprecatedOverridingAnnotation) { + val suffix = other.deprecatedOverridingMessage map (": " + _) getOrElse "" + val msg = s"overriding ${other.fullLocationString} is deprecated$suffix" + unit.deprecationWarning(member.pos, msg) + } + } } val opc = new overridingPairs.Cursor(clazz) @@ -1199,6 +1208,23 @@ abstract class RefChecks extends InfoTransform with reflect.internal.transform.R case _ => } + // SI-6276 warn for `def foo = foo` or `val bar: X = bar`, which come up more frequently than you might think. + def checkInfiniteLoop(valOrDef: ValOrDefDef) { + def callsSelf = valOrDef.rhs match { + case t @ (Ident(_) | Select(This(_), _)) => + t hasSymbolWhich (_.accessedOrSelf == valOrDef.symbol) + case _ => false + } + val trivialInifiniteLoop = ( + !valOrDef.isErroneous + && !valOrDef.symbol.isValueParameter + && valOrDef.symbol.paramss.isEmpty + && callsSelf + ) + if (trivialInifiniteLoop) + unit.warning(valOrDef.rhs.pos, s"${valOrDef.symbol.fullLocationString} does nothing other than call itself recursively") + } + // Transformation ------------------------------------------------------------ /* Convert a reference to a case factory of type `tpe` to a new of the class it produces. */ @@ -1642,6 +1668,7 @@ abstract class RefChecks extends InfoTransform with reflect.internal.transform.R case ValDef(_, _, _, _) | DefDef(_, _, _, _, _, _) => checkDeprecatedOvers(tree) + checkInfiniteLoop(tree.asInstanceOf[ValOrDefDef]) if (settings.warnNullaryUnit.value) checkNullaryMethodReturnType(sym) if (settings.warnInaccessible.value) { diff --git a/src/compiler/scala/tools/nsc/typechecker/SyntheticMethods.scala b/src/compiler/scala/tools/nsc/typechecker/SyntheticMethods.scala index 0c9ed29182..2fe8925c95 100644 --- a/src/compiler/scala/tools/nsc/typechecker/SyntheticMethods.scala +++ b/src/compiler/scala/tools/nsc/typechecker/SyntheticMethods.scala @@ -63,7 +63,7 @@ trait SyntheticMethods extends ast.TreeDSL { // in the original order. def accessors = clazz.caseFieldAccessors sortBy { acc => originalAccessors indexWhere { orig => - (acc.name == orig.name) || (acc.name startsWith (orig.name append "$").asInstanceOf[Name]) // [Eugene] why do we need this cast? + (acc.name == orig.name) || (acc.name startsWith (orig.name append "$")) } } val arity = accessors.size @@ -87,7 +87,7 @@ trait SyntheticMethods extends ast.TreeDSL { ) def forwardToRuntime(method: Symbol): Tree = - forwardMethod(method, getMember(ScalaRunTimeModule, (method.name prepend "_").asInstanceOf[Name]))(mkThis :: _) // [Eugene] why do we need this cast? + forwardMethod(method, getMember(ScalaRunTimeModule, (method.name prepend "_")))(mkThis :: _) def callStaticsMethod(name: String)(args: Tree*): Tree = { val method = termMember(RuntimeStaticsModule, name) diff --git a/src/compiler/scala/tools/nsc/typechecker/Tags.scala b/src/compiler/scala/tools/nsc/typechecker/Tags.scala index d4e4100dfa..44fa9a5d7a 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Tags.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Tags.scala @@ -26,7 +26,7 @@ trait Tags { /** Finds in scope or materializes a ClassTag. * Should be used instead of ClassManifest every time compiler needs to persist an erasure. * - * Once upon a time, we had an `ErasureTag` which was to `ClassTag` the same that `AbsTypeTag` is for `TypeTag`. + * Once upon a time, we had an `ErasureTag` which was to `ClassTag` the same that `WeakTypeTag` is for `TypeTag`. * However we found out that we don't really need this concept, so it got removed. * * @param pos Position for error reporting. Please, provide meaningful value. @@ -43,7 +43,7 @@ trait Tags { resolveTag(pos, taggedTp, allowMaterialization) } - /** Finds in scope or materializes an AbsTypeTag (if `concrete` is false) or a TypeTag (if `concrete` is true). + /** Finds in scope or materializes an WeakTypeTag (if `concrete` is false) or a TypeTag (if `concrete` is true). * * @param pos Position for error reporting. Please, provide meaningful value. * @param pre Prefix that represents a universe this type tag will be bound to. @@ -60,7 +60,7 @@ trait Tags { * EmptyTree if `allowMaterialization` is false, and there is no array tag in scope. */ def resolveTypeTag(pos: Position, pre: Type, tp: Type, concrete: Boolean, allowMaterialization: Boolean = true): Tree = { - val tagSym = if (concrete) TypeTagClass else AbsTypeTagClass + val tagSym = if (concrete) TypeTagClass else WeakTypeTagClass val tagTp = if (pre == NoType) TypeRef(BaseUniverseClass.toTypeConstructor, tagSym, List(tp)) else singleType(pre, pre member tagSym.name) val taggedTp = appliedType(tagTp, List(tp)) resolveTag(pos, taggedTp, allowMaterialization) diff --git a/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala b/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala index f8a5c401df..e5c0f5767c 100644 --- a/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala +++ b/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala @@ -59,6 +59,19 @@ trait TypeDiagnostics { * the map, the addendum should also be printed. */ private var addendums = perRunCaches.newMap[Position, () => String]() + private var isTyperInPattern = false + + /** Devising new ways of communicating error info out of + * desperation to work on error messages. This is used + * by typedPattern to wrap its business so we can generate + * a sensible error message when things go south. + */ + def typingInPattern[T](body: => T): T = { + val saved = isTyperInPattern + isTyperInPattern = true + try body + finally isTyperInPattern = saved + } def setAddendum(pos: Position, msg: () => String) = if (pos != NoPosition) @@ -138,13 +151,17 @@ trait TypeDiagnostics { def hasParams = tree.tpe.paramSectionCount > 0 def preResultString = if (hasParams) ": " else " of type " - def nullMessage = "expression of type " + tree.tpe - def overloadedMessage = "overloaded method " + sym + " with alternatives:\n" + alternativesString(tree) + def patternMessage = "pattern " + tree.tpe.finalResultType + valueParamsString(tree.tpe) + def exprMessage = "expression of type " + tree.tpe + def overloadedMessage = s"overloaded method $sym with alternatives:\n" + alternativesString(tree) def moduleMessage = "" + sym def defaultMessage = moduleMessage + preResultString + tree.tpe def applyMessage = defaultMessage + tree.symbol.locationString - if (sym == null) nullMessage + if ((sym eq null) || (sym eq NoSymbol)) { + if (isTyperInPattern) patternMessage + else exprMessage + } else if (sym.isOverloaded) overloadedMessage else if (sym.isModule) moduleMessage else if (sym.name == nme.apply) applyMessage diff --git a/src/compiler/scala/tools/nsc/typechecker/Typers.scala b/src/compiler/scala/tools/nsc/typechecker/Typers.scala index 87937519fc..a58d73bd69 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Typers.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Typers.scala @@ -13,10 +13,9 @@ package scala.tools.nsc package typechecker import scala.collection.mutable -import scala.reflect.internal.util.BatchSourceFile +import scala.reflect.internal.util.{ BatchSourceFile, Statistics } import mutable.ListBuffer import symtab.Flags._ -import reflect.internal.util.Statistics // Suggestion check whether we can do without priming scopes with symbols of outer scopes, // like the IDE does. @@ -779,7 +778,7 @@ trait Typers extends Modes with Adaptations with Tags { var raw = featureDesc + " " + req + " be enabled\n" + "by making the implicit value language." + featureName + " visible." if (!(currentRun.reportedFeature contains featureTrait)) - raw += "\nThis can be achieved by adding the import clause 'import language." + featureName + "'\n" + + raw += "\nThis can be achieved by adding the import clause 'import scala.language." + featureName + "'\n" + "or by setting the compiler option -language:" + featureName + ".\n" + "See the Scala docs for value scala.language." + featureName + " for a discussion\n" + "why the feature " + req + " be explicitly enabled." @@ -1405,14 +1404,15 @@ trait Typers extends Modes with Adaptations with Tags { unit.error(clazz.pos, "value class needs to have exactly one public val parameter") } } - body foreach { - case md: ModuleDef => - unit.error(md.pos, "value class may not have nested module definitions") - case cd: ClassDef => - unit.error(cd.pos, "value class may not have nested class definitions") - case md: DefDef if md.symbol.isConstructor && !md.symbol.isPrimaryConstructor => - unit.error(md.pos, "value class may not have secondary constructors") - case _ => + + def valueClassMayNotHave(at: Tree, what: String) = unit.error(at.pos, s"value class may not have $what") + body.foreach { + case dd: DefDef if dd.symbol.isAuxiliaryConstructor => valueClassMayNotHave(dd, "secondary constructors") + case t => t.foreach { + case md: ModuleDef => valueClassMayNotHave(md, "nested module definitions") + case cd: ClassDef => valueClassMayNotHave(cd, "nested class definitions") + case _ => + } } for (tparam <- clazz.typeParams) if (tparam hasAnnotation definitions.SpecializedClass) @@ -1577,6 +1577,12 @@ trait Typers extends Modes with Adaptations with Tags { if (psym.isFinal) pending += ParentFinalInheritanceError(parent, psym) + if (psym.hasDeprecatedInheritanceAnnotation) { + val suffix = psym.deprecatedInheritanceMessage map (": " + _) getOrElse "" + val msg = s"inheritance from ${psym.fullLocationString} is deprecated$suffix" + unit.deprecationWarning(parent.pos, msg) + } + if (psym.isSealed && !phase.erasedTypes) if (context.unit.source.file == psym.sourceFile) psym addChild context.owner @@ -1868,7 +1874,7 @@ trait Typers extends Modes with Adaptations with Tags { * @param rhs ... */ def computeParamAliases(clazz: Symbol, vparamss: List[List[ValDef]], rhs: Tree) { - log("computing param aliases for "+clazz+":"+clazz.primaryConstructor.tpe+":"+rhs)//debug + debuglog(s"computing param aliases for $clazz:${clazz.primaryConstructor.tpe}:$rhs") def decompose(call: Tree): (Tree, List[Tree]) = call match { case Apply(fn, args) => val (superConstr, args1) = decompose(fn) @@ -2392,7 +2398,7 @@ trait Typers extends Modes with Adaptations with Tags { else targs.init def mkParams(methodSym: Symbol, formals: List[Type] = deriveFormals) = - if (formals.isEmpty) { MissingParameterTypeAnonMatchError(tree, pt); Nil } + if (formals.isEmpty || !formals.forall(isFullyDefined)) { MissingParameterTypeAnonMatchError(tree, pt); Nil } else methodSym newSyntheticValueParams formals def mkSel(params: List[Symbol]) = @@ -3227,7 +3233,7 @@ trait Typers extends Modes with Adaptations with Tags { val nbSubPats = args.length val (formals, formalsExpanded) = extractorFormalTypes(resTp, nbSubPats, fun1.symbol) - if (formals == null) duplErrorTree(WrongNumberArgsPatternError(tree, fun)) + if (formals == null) duplErrorTree(WrongNumberOfArgsError(tree, fun)) else { val args1 = typedArgs(args, mode, formals, formalsExpanded) // This used to be the following (failing) assert: @@ -3434,7 +3440,7 @@ trait Typers extends Modes with Adaptations with Tags { } if (hasError) annotationError - else AnnotationInfo(annType, List(), nvPairs map {p => (p._1.asInstanceOf[Name], p._2.get)}).setOriginal(Apply(typedFun, args).setPos(ann.pos)) // [Eugene] why do we need this cast? + else AnnotationInfo(annType, List(), nvPairs map {p => (p._1, p._2.get)}).setOriginal(Apply(typedFun, args).setPos(ann.pos)) } } else if (requireJava) { reportAnnotationError(NestedAnnotationError(ann, annType)) @@ -3813,18 +3819,23 @@ trait Typers extends Modes with Adaptations with Tags { * - simplest solution: have two method calls * */ - def mkInvoke(cxTree: Tree, tree: Tree, qual: Tree, name: Name): Option[Tree] = + def mkInvoke(cxTree: Tree, tree: Tree, qual: Tree, name: Name): Option[Tree] = { + debuglog(s"mkInvoke($cxTree, $tree, $qual, $name)") acceptsApplyDynamicWithType(qual, name) map { tp => // tp eq NoType => can call xxxDynamic, but not passing any type args (unless specified explicitly by the user) // in scala-virtualized, when not NoType, tp is passed as type argument (for selection on a staged Struct) - // strip off type application -- we're not doing much with outer, so don't bother preserving cxTree's attributes etc - val (outer, explicitTargs) = cxTree match { - case TypeApply(fun, targs) => (fun, targs) - case Apply(TypeApply(fun, targs), args) => (Apply(fun, args), targs) - case t => (t, Nil) + // strip off type application -- we're not doing much with outer, + // so don't bother preserving cxTree's attributes etc + val cxTree1 = cxTree match { + case t: ValOrDefDef => t.rhs + case t => t + } + val (outer, explicitTargs) = cxTree1 match { + case TypeApply(fun, targs) => (fun, targs) + case Apply(TypeApply(fun, targs), args) => (Apply(fun, args), targs) + case t => (t, Nil) } - @inline def hasNamedArg(as: List[Tree]) = as.collectFirst{case AssignOrNamedArg(lhs, rhs) =>}.nonEmpty // note: context.tree includes at most one Apply node @@ -3849,6 +3860,7 @@ trait Typers extends Modes with Adaptations with Tags { atPos(qual.pos)(Apply(tappSel, List(Literal(Constant(name.decode))))) } + } } @inline final def deindentTyping() = context.typingIndentLevel -= 2 @@ -4069,7 +4081,7 @@ trait Typers extends Modes with Adaptations with Tags { if ( !settings.XoldPatmat.value && !isPastTyper && thenp1.tpe.annotations.isEmpty && elsep1.tpe.annotations.isEmpty // annotated types need to be lubbed regardless (at least, continations break if you by pass them like this) && thenTp =:= elseTp - ) (thenp1.tpe, false) // use unpacked type + ) (thenp1.tpe.deconst, false) // use unpacked type. Important to deconst, as is done in ptOrLub, otherwise `if (???) 0 else 0` evaluates to 0 (SI-6331) // TODO: skolemize (lub of packed types) when that no longer crashes on files/pos/t4070b.scala else ptOrLub(thenp1.tpe :: elsep1.tpe :: Nil, pt) @@ -5454,7 +5466,7 @@ trait Typers extends Modes with Adaptations with Tags { // as a compromise, context.enrichmentEnabled tells adaptToMember to go ahead and enrich, // but arbitrary conversions (in adapt) are disabled // TODO: can we achieve the pattern matching bit of the string interpolation SIP without this? - context.withImplicitsDisabledAllowEnrichment(typed(tree, PATTERNmode, pt)) + typingInPattern(context.withImplicitsDisabledAllowEnrichment(typed(tree, PATTERNmode, pt))) } /** Types a (fully parameterized) type tree */ @@ -5559,8 +5571,8 @@ trait Typers extends Modes with Adaptations with Tags { } object TypersStats { - import reflect.internal.TypesStats._ - import reflect.internal.BaseTypeSeqsStats._ + import scala.reflect.internal.TypesStats._ + import scala.reflect.internal.BaseTypeSeqsStats._ val typedIdentCount = Statistics.newCounter("#typechecked identifiers") val typedSelectCount = Statistics.newCounter("#typechecked selections") val typedApplyCount = Statistics.newCounter("#typechecked applications") diff --git a/src/compiler/scala/tools/nsc/util/Exceptional.scala b/src/compiler/scala/tools/nsc/util/Exceptional.scala index 90d032518a..34344263e8 100644 --- a/src/compiler/scala/tools/nsc/util/Exceptional.scala +++ b/src/compiler/scala/tools/nsc/util/Exceptional.scala @@ -4,7 +4,7 @@ package util import java.util.concurrent.ExecutionException import java.lang.reflect.{ InvocationTargetException, UndeclaredThrowableException } import scala.reflect.internal.util.StringOps._ -import language.implicitConversions +import scala.language.implicitConversions object Exceptional { def unwrap(x: Throwable): Throwable = x match { diff --git a/src/compiler/scala/tools/nsc/util/ScalaClassLoader.scala b/src/compiler/scala/tools/nsc/util/ScalaClassLoader.scala index 25caae9ecb..9de3a2427f 100644 --- a/src/compiler/scala/tools/nsc/util/ScalaClassLoader.scala +++ b/src/compiler/scala/tools/nsc/util/ScalaClassLoader.scala @@ -14,7 +14,7 @@ import java.net.URL import scala.reflect.runtime.ReflectionUtils.unwrapHandler import ScalaClassLoader._ import scala.util.control.Exception.{ catching } -import language.implicitConversions +import scala.language.implicitConversions import scala.reflect.{ ClassTag, classTag } trait HasClassPath { diff --git a/src/compiler/scala/tools/nsc/util/StatisticsInfo.scala b/src/compiler/scala/tools/nsc/util/StatisticsInfo.scala index 8cdb96c586..3682b9fb54 100644 --- a/src/compiler/scala/tools/nsc/util/StatisticsInfo.scala +++ b/src/compiler/scala/tools/nsc/util/StatisticsInfo.scala @@ -6,13 +6,13 @@ package scala.tools.nsc package util -import reflect.internal.util.Statistics +import scala.reflect.internal.util.Statistics abstract class StatisticsInfo { val global: Global import global._ - import reflect.internal.TreesStats.nodeByType + import scala.reflect.internal.TreesStats.nodeByType val phasesShown = List("parser", "typer", "patmat", "erasure", "cleanup") @@ -35,4 +35,4 @@ abstract class StatisticsInfo { for (q <- quants if q.showAt(phase.name)) inform(q.line) } -}
\ No newline at end of file +} diff --git a/src/compiler/scala/tools/reflect/FastTrack.scala b/src/compiler/scala/tools/reflect/FastTrack.scala index 07c972899e..38e4e3c9f1 100644 --- a/src/compiler/scala/tools/reflect/FastTrack.scala +++ b/src/compiler/scala/tools/reflect/FastTrack.scala @@ -13,7 +13,7 @@ trait FastTrack { import global._ import definitions._ - import language.implicitConversions + import scala.language.implicitConversions private implicit def context2taggers(c0: MacroContext): Taggers { val c: c0.type } = new { val c: c0.type = c0 } with Taggers private implicit def context2macroimplementations(c0: MacroContext): MacroImplementations { val c: c0.type } = new { val c: c0.type = c0 } with MacroImplementations @@ -23,7 +23,7 @@ trait FastTrack { def validate(c: MacroContext): Boolean = expander.isDefinedAt((c, c.expandee)) def run(c: MacroContext): Any = { val result = expander((c, c.expandee)) - c.Expr[Nothing](result)(c.AbsTypeTag.Nothing) + c.Expr[Nothing](result)(c.WeakTypeTag.Nothing) } } @@ -31,11 +31,11 @@ trait FastTrack { var registry = Map[Symbol, FastTrackEntry]() implicit class BindTo(sym: Symbol) { def bindTo(expander: FastTrackExpander): Unit = if (sym != NoSymbol) registry += sym -> FastTrackEntry(sym, expander) } MacroInternal_materializeClassTag bindTo { case (c, Apply(TypeApply(_, List(tt)), List(u))) => c.materializeClassTag(u, tt.tpe) } - MacroInternal_materializeAbsTypeTag bindTo { case (c, Apply(TypeApply(_, List(tt)), List(u))) => c.materializeTypeTag(u, EmptyTree, tt.tpe, concrete = false) } + MacroInternal_materializeWeakTypeTag bindTo { case (c, Apply(TypeApply(_, List(tt)), List(u))) => c.materializeTypeTag(u, EmptyTree, tt.tpe, concrete = false) } MacroInternal_materializeTypeTag bindTo { case (c, Apply(TypeApply(_, List(tt)), List(u))) => c.materializeTypeTag(u, EmptyTree, tt.tpe, concrete = true) } BaseUniverseReify bindTo { case (c, Apply(TypeApply(_, List(tt)), List(expr))) => c.materializeExpr(c.prefix.tree, EmptyTree, expr) } ReflectRuntimeCurrentMirror bindTo { case (c, _) => scala.reflect.runtime.Macros.currentMirror(c).tree } StringContext_f bindTo { case (c, app@Apply(Select(Apply(_, parts), _), args)) => c.macro_StringInterpolation_f(parts, args, app.pos) } registry } -}
\ No newline at end of file +} diff --git a/src/compiler/scala/tools/reflect/package.scala b/src/compiler/scala/tools/reflect/package.scala index 3008930823..d5569e448d 100644 --- a/src/compiler/scala/tools/reflect/package.scala +++ b/src/compiler/scala/tools/reflect/package.scala @@ -6,7 +6,7 @@ package scala.tools import scala.reflect.api.JavaUniverse -import language.implicitConversions +import scala.language.implicitConversions package object reflect extends FrontEnds { // [todo: can we generalize this? diff --git a/src/compiler/scala/tools/util/Javap.scala b/src/compiler/scala/tools/util/Javap.scala index ce149a5aa0..70f71a222a 100644 --- a/src/compiler/scala/tools/util/Javap.scala +++ b/src/compiler/scala/tools/util/Javap.scala @@ -12,7 +12,7 @@ import scala.tools.nsc.util.ScalaClassLoader import java.io.{ InputStream, PrintWriter, ByteArrayInputStream, FileNotFoundException } import scala.tools.nsc.io.File import Javap._ -import language.reflectiveCalls +import scala.language.reflectiveCalls trait Javap { def loader: ScalaClassLoader diff --git a/src/compiler/scala/tools/util/PathResolver.scala b/src/compiler/scala/tools/util/PathResolver.scala index 739878c282..f6dc92f96e 100644 --- a/src/compiler/scala/tools/util/PathResolver.scala +++ b/src/compiler/scala/tools/util/PathResolver.scala @@ -13,7 +13,7 @@ import nsc.util.{ ClassPath, JavaClassPath, ScalaClassLoader } import nsc.io.{ File, Directory, Path, AbstractFile } import ClassPath.{ JavaContext, DefaultJavaContext, join, split } import PartialFunction.condOpt -import language.postfixOps +import scala.language.postfixOps // Loosely based on the draft specification at: // https://wiki.scala-lang.org/display/SW/Classpath diff --git a/src/compiler/scala/tools/util/VerifyClass.scala b/src/compiler/scala/tools/util/VerifyClass.scala index e0e089d0b2..d208a9f9c2 100644 --- a/src/compiler/scala/tools/util/VerifyClass.scala +++ b/src/compiler/scala/tools/util/VerifyClass.scala @@ -2,7 +2,7 @@ package scala.tools.util import scala.tools.nsc.io._ import java.net.URLClassLoader -import collection.JavaConverters._ +import scala.collection.JavaConverters._ object VerifyClass { diff --git a/src/continuations/library/scala/util/continuations/ControlContext.scala b/src/continuations/library/scala/util/continuations/ControlContext.scala index 910ca60eb0..37e3f45a4f 100644 --- a/src/continuations/library/scala/util/continuations/ControlContext.scala +++ b/src/continuations/library/scala/util/continuations/ControlContext.scala @@ -8,7 +8,7 @@ package scala.util.continuations -import annotation.{ Annotation, StaticAnnotation, TypeConstraint } +import scala.annotation.{ Annotation, StaticAnnotation, TypeConstraint } /** This annotation is used to mark a parameter as part of a continuation * context. diff --git a/src/detach/library/scala/remoting/Channel.scala b/src/detach/library/scala/remoting/Channel.scala index 54b8fb100e..18944a152d 100644 --- a/src/detach/library/scala/remoting/Channel.scala +++ b/src/detach/library/scala/remoting/Channel.scala @@ -116,7 +116,7 @@ class Channel protected (socket: Socket) { * the expected type. */ @throws(classOf[ChannelException]) - def receive[T](implicit expected: reflect.ClassTag[T]): T = { + def receive[T](implicit expected: scala.reflect.ClassTag[T]): T = { val found = in.readObject().asInstanceOf[reflect.ClassTag[_]] info("receive: found="+found+", expected="+expected) import scala.reflect.ClassTag @@ -144,11 +144,11 @@ class Channel protected (socket: Socket) { /** <code>?</code> method may throw either an * <code>ClassNotFoundException</code> or an <code>IOException</code>. */ - def ?[T](implicit t: reflect.ClassTag[T]): T = receive[T](t) + def ?[T](implicit t: scala.reflect.ClassTag[T]): T = receive[T](t) /** <code>send</code> method may throw an <code>IOException</code>. */ - def send[T](x: T)(implicit t: reflect.ClassTag[T]) { + def send[T](x: T)(implicit t: scala.reflect.ClassTag[T]) { out writeObject t x match { case x: Unit => // nop @@ -168,7 +168,7 @@ class Channel protected (socket: Socket) { /** <code>!</code> method may throw an <code>IOException</code>. */ - def (implicit m: reflect.ClassTag[T]) { send(x)(m) } + def (implicit m: scala.reflect.ClassTag[T]) { send(x)(m) } def close() { try { socket.close() } diff --git a/src/library/scala/Array.scala b/src/library/scala/Array.scala index 7511b5309d..c61a255e3b 100644 --- a/src/library/scala/Array.scala +++ b/src/library/scala/Array.scala @@ -11,7 +11,7 @@ package scala import scala.collection.generic._ import scala.collection.{ mutable, immutable } import mutable.{ ArrayBuilder, ArraySeq } -import compat.Platform.arraycopy +import scala.compat.Platform.arraycopy import scala.reflect.ClassTag import scala.runtime.ScalaRunTime.{ array_apply, array_update } @@ -511,5 +511,5 @@ final class Array[T](_length: Int) extends java.io.Serializable with java.lang.C * * @return A clone of the Array. */ - override def clone: Array[T] = throw new Error() + override def clone(): Array[T] = throw new Error() } diff --git a/src/library/scala/Boolean.scala b/src/library/scala/Boolean.scala index 014928d986..440e546f19 100644 --- a/src/library/scala/Boolean.scala +++ b/src/library/scala/Boolean.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Boolean` (equivalent to Java's `boolean` primitive type) is a * subtype of [[scala.AnyVal]]. Instances of `Boolean` are not diff --git a/src/library/scala/Byte.scala b/src/library/scala/Byte.scala index 6f54f6cedf..df0d2c73b1 100644 --- a/src/library/scala/Byte.scala +++ b/src/library/scala/Byte.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Byte`, a 8-bit signed integer (equivalent to Java's `byte` primitive type) is a * subtype of [[scala.AnyVal]]. Instances of `Byte` are not diff --git a/src/library/scala/Char.scala b/src/library/scala/Char.scala index b681ae1693..1fa0c0d9e8 100644 --- a/src/library/scala/Char.scala +++ b/src/library/scala/Char.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Char`, a 16-bit unsigned integer (equivalent to Java's `char` primitive type) is a * subtype of [[scala.AnyVal]]. Instances of `Char` are not diff --git a/src/library/scala/Double.scala b/src/library/scala/Double.scala index 510de92a2a..f058d7c26b 100644 --- a/src/library/scala/Double.scala +++ b/src/library/scala/Double.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Double`, a 64-bit IEEE-754 floating point number (equivalent to Java's `double` primitive type) is a * subtype of [[scala.AnyVal]]. Instances of `Double` are not diff --git a/src/library/scala/Float.scala b/src/library/scala/Float.scala index b9c116da0b..d942acec23 100644 --- a/src/library/scala/Float.scala +++ b/src/library/scala/Float.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Float`, a 32-bit IEEE-754 floating point number (equivalent to Java's `float` primitive type) is a * subtype of [[scala.AnyVal]]. Instances of `Float` are not diff --git a/src/library/scala/Int.scala b/src/library/scala/Int.scala index b2a4f93253..ae36413469 100644 --- a/src/library/scala/Int.scala +++ b/src/library/scala/Int.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Int`, a 32-bit signed integer (equivalent to Java's `int` primitive type) is a * subtype of [[scala.AnyVal]]. Instances of `Int` are not diff --git a/src/library/scala/Long.scala b/src/library/scala/Long.scala index 40932a65a7..4ee9383c2a 100644 --- a/src/library/scala/Long.scala +++ b/src/library/scala/Long.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Long`, a 64-bit signed integer (equivalent to Java's `long` primitive type) is a * subtype of [[scala.AnyVal]]. Instances of `Long` are not diff --git a/src/library/scala/LowPriorityImplicits.scala b/src/library/scala/LowPriorityImplicits.scala index 8c49d2f67b..7697a7367a 100644 --- a/src/library/scala/LowPriorityImplicits.scala +++ b/src/library/scala/LowPriorityImplicits.scala @@ -12,7 +12,7 @@ import scala.collection.{ mutable, immutable, generic } import mutable.WrappedArray import immutable.WrappedString import generic.CanBuildFrom -import language.implicitConversions +import scala.language.implicitConversions /** The `LowPriorityImplicits` class provides implicit values that * are valid in all Scala compilation units without explicit qualification, diff --git a/src/library/scala/Option.scala b/src/library/scala/Option.scala index 5e347b051f..d241b86b91 100644 --- a/src/library/scala/Option.scala +++ b/src/library/scala/Option.scala @@ -10,7 +10,7 @@ package scala object Option { - import language.implicitConversions + import scala.language.implicitConversions /** An implicit conversion that converts an option to an iterable value */ diff --git a/src/library/scala/PartialFunction.scala b/src/library/scala/PartialFunction.scala index d0a339bdd5..7c6e2d2e3e 100644 --- a/src/library/scala/PartialFunction.scala +++ b/src/library/scala/PartialFunction.scala @@ -211,8 +211,8 @@ object PartialFunction { @inline private final def checkFallback[B] = fallback_pf.asInstanceOf[PartialFunction[Any, B]] @inline private final def fallbackOccurred[B](x: B) = (fallback_pf eq x.asInstanceOf[AnyRef]) - private final class Lifted[-A, +B] (val pf: PartialFunction[A, B]) - extends runtime.AbstractFunction1[A, Option[B]] { + private final class Lifted[-A, +B] (val pf: PartialFunction[A, B]) + extends scala.runtime.AbstractFunction1[A, Option[B]] { def apply(x: A): Option[B] = { val z = pf.applyOrElse(x, checkFallback[B]) @@ -220,7 +220,7 @@ object PartialFunction { } } - private final class Unlifted[A, B] (f: A => Option[B]) extends runtime.AbstractPartialFunction[A, B] { + private final class Unlifted[A, B] (f: A => Option[B]) extends scala.runtime.AbstractPartialFunction[A, B] { def isDefinedAt(x: A): Boolean = f(x).isDefined override def applyOrElse[A1 <: A, B1 >: B](x: A1, default: A1 => B1): B1 = { diff --git a/src/library/scala/Predef.scala b/src/library/scala/Predef.scala index f3d36473dd..4792de6bf5 100644 --- a/src/library/scala/Predef.scala +++ b/src/library/scala/Predef.scala @@ -12,9 +12,9 @@ import scala.collection.{ mutable, immutable, generic } import immutable.StringOps import mutable.ArrayOps import generic.CanBuildFrom -import annotation.{ elidable, implicitNotFound } -import annotation.elidable.ASSERTION -import language.{implicitConversions, existentials} +import scala.annotation.{ elidable, implicitNotFound } +import scala.annotation.elidable.ASSERTION +import scala.language.{implicitConversions, existentials} /** The `Predef` object provides definitions that are accessible in all Scala * compilation units without explicit qualification. @@ -301,7 +301,7 @@ object Predef extends LowPriorityImplicits { implicit def exceptionWrapper(exc: Throwable) = new runtime.RichException(exc) implicit def tuple2ToZippedOps[T1, T2](x: (T1, T2)) = new runtime.Tuple2Zipped.Ops(x) implicit def tuple3ToZippedOps[T1, T2, T3](x: (T1, T2, T3)) = new runtime.Tuple3Zipped.Ops(x) - implicit def seqToCharSequence(xs: collection.IndexedSeq[Char]): CharSequence = new runtime.SeqCharSequence(xs) + implicit def seqToCharSequence(xs: scala.collection.IndexedSeq[Char]): CharSequence = new runtime.SeqCharSequence(xs) implicit def arrayToCharSequence(xs: Array[Char]): CharSequence = new runtime.ArrayCharSequence(xs, 0, xs.length) implicit def genericArrayOps[T](xs: Array[T]): ArrayOps[T] = (xs match { diff --git a/src/library/scala/SerialVersionUID.scala b/src/library/scala/SerialVersionUID.scala index 0cb924c3d4..f59aa94bd7 100644 --- a/src/library/scala/SerialVersionUID.scala +++ b/src/library/scala/SerialVersionUID.scala @@ -12,4 +12,4 @@ package scala * Annotation for specifying the `static SerialVersionUID` field * of a serializable class. */ -class SerialVersionUID(uid: Long) extends annotation.StaticAnnotation +class SerialVersionUID(uid: Long) extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/Short.scala b/src/library/scala/Short.scala index 687b198a11..35c5fe3ff0 100644 --- a/src/library/scala/Short.scala +++ b/src/library/scala/Short.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Short`, a 16-bit signed integer (equivalent to Java's `short` primitive type) is a * subtype of [[scala.AnyVal]]. Instances of `Short` are not diff --git a/src/library/scala/Unit.scala b/src/library/scala/Unit.scala index 4156071f29..dc67e60314 100644 --- a/src/library/scala/Unit.scala +++ b/src/library/scala/Unit.scala @@ -10,7 +10,7 @@ package scala -import language.implicitConversions +import scala.language.implicitConversions /** `Unit` is a subtype of [[scala.AnyVal]]. There is only one value of type diff --git a/src/library/scala/annotation/bridge.scala b/src/library/scala/annotation/bridge.scala index a56129fb96..c3a7f47e62 100644 --- a/src/library/scala/annotation/bridge.scala +++ b/src/library/scala/annotation/bridge.scala @@ -11,4 +11,4 @@ package scala.annotation /** If this annotation is present on a method, it will be treated as a bridge method. */ @deprecated("Reconsider whether using this annotation will accomplish anything", "2.10.0") -private[scala] class bridge extends annotation.StaticAnnotation +private[scala] class bridge extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/cloneable.scala b/src/library/scala/annotation/cloneable.scala index aa45e8325f..dc2031ba8d 100644 --- a/src/library/scala/annotation/cloneable.scala +++ b/src/library/scala/annotation/cloneable.scala @@ -12,4 +12,4 @@ package scala.annotation * An annotation that designates the class to which it is applied as cloneable */ @deprecated("instead of `@cloneable class C`, use `class C extends Cloneable`", "2.10.0") -class cloneable extends annotation.StaticAnnotation +class cloneable extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/elidable.scala b/src/library/scala/annotation/elidable.scala index 18be2450f5..0b4f5ac4b2 100644 --- a/src/library/scala/annotation/elidable.scala +++ b/src/library/scala/annotation/elidable.scala @@ -22,7 +22,7 @@ import java.util.logging.Level * @elidable(123) // annotation priority * scalac -Xelide-below 456 // command line priority * }}} - * + * * The method call will be replaced with an expression which depends on * the type of the elided expression. In decreasing order of precedence: * @@ -33,10 +33,10 @@ import java.util.logging.Level * T >: Null null * T >: Nothing Predef.??? * }}} - * + * * Complete example: {{{ - import annotation._, elidable._ + import scala.annotation._, elidable._ object Test extends App { def expensiveComputation(): Int = { Thread.sleep(1000) ; 172 } @@ -62,7 +62,7 @@ import java.util.logging.Level * @author Paul Phillips * @since 2.8 */ -final class elidable(final val level: Int) extends annotation.StaticAnnotation {} +final class elidable(final val level: Int) extends scala.annotation.StaticAnnotation {} /** This useless appearing code was necessary to allow people to use * named constants for the elidable annotation. This is what it takes diff --git a/src/library/scala/annotation/implicitNotFound.scala b/src/library/scala/annotation/implicitNotFound.scala index 0c6a5d610f..993e99d382 100644 --- a/src/library/scala/annotation/implicitNotFound.scala +++ b/src/library/scala/annotation/implicitNotFound.scala @@ -15,4 +15,4 @@ package scala.annotation * @author Adriaan Moors * @since 2.8.1 */ -final class implicitNotFound(msg: String) extends annotation.StaticAnnotation {}
\ No newline at end of file +final class implicitNotFound(msg: String) extends scala.annotation.StaticAnnotation {} diff --git a/src/library/scala/annotation/meta/beanGetter.scala b/src/library/scala/annotation/meta/beanGetter.scala index 040a3f415a..48eccf9337 100644 --- a/src/library/scala/annotation/meta/beanGetter.scala +++ b/src/library/scala/annotation/meta/beanGetter.scala @@ -10,4 +10,4 @@ package scala.annotation.meta /** * Consult the documentation in package [[scala.annotation.meta]]. */ -final class beanGetter extends annotation.StaticAnnotation +final class beanGetter extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/beanSetter.scala b/src/library/scala/annotation/meta/beanSetter.scala index 45ea063169..c9f68449fc 100644 --- a/src/library/scala/annotation/meta/beanSetter.scala +++ b/src/library/scala/annotation/meta/beanSetter.scala @@ -10,4 +10,4 @@ package scala.annotation.meta /** * Consult the documentation in package [[scala.annotation.meta]]. */ -final class beanSetter extends annotation.StaticAnnotation +final class beanSetter extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/companionClass.scala b/src/library/scala/annotation/meta/companionClass.scala index 8e53f6caf9..d165f37bad 100644 --- a/src/library/scala/annotation/meta/companionClass.scala +++ b/src/library/scala/annotation/meta/companionClass.scala @@ -12,6 +12,6 @@ package scala.annotation.meta * conversion method for it. Annotations `@companionClass` and `@companionMethod` * control where an annotation on the implicit class will go. By default, annotations * on an implicit class end up only on the class. - * + * */ -final class companionClass extends annotation.StaticAnnotation +final class companionClass extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/companionMethod.scala b/src/library/scala/annotation/meta/companionMethod.scala index 379c4f3385..c069b47f04 100644 --- a/src/library/scala/annotation/meta/companionMethod.scala +++ b/src/library/scala/annotation/meta/companionMethod.scala @@ -12,6 +12,6 @@ package scala.annotation.meta * conversion method for it. Annotations `@companionClass` and `@companionMethod` * control where an annotation on the implicit class will go. By default, annotations * on an implicit class end up only on the class. - * + * */ -final class companionMethod extends annotation.StaticAnnotation +final class companionMethod extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/companionObject.scala b/src/library/scala/annotation/meta/companionObject.scala index d329df5c42..5bd58f6365 100644 --- a/src/library/scala/annotation/meta/companionObject.scala +++ b/src/library/scala/annotation/meta/companionObject.scala @@ -11,4 +11,4 @@ package scala.annotation.meta * Currently unused; intended as an annotation target for classes such as case classes * that automatically generate a companion object */ -final class companionObject extends annotation.StaticAnnotation +final class companionObject extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/field.scala b/src/library/scala/annotation/meta/field.scala index 78f4a98544..96ed13abc4 100644 --- a/src/library/scala/annotation/meta/field.scala +++ b/src/library/scala/annotation/meta/field.scala @@ -10,4 +10,4 @@ package scala.annotation.meta /** * Consult the documentation in package [[scala.annotation.meta]]. */ -final class field extends annotation.StaticAnnotation +final class field extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/getter.scala b/src/library/scala/annotation/meta/getter.scala index 07e4512f00..0a28a5bb52 100644 --- a/src/library/scala/annotation/meta/getter.scala +++ b/src/library/scala/annotation/meta/getter.scala @@ -10,4 +10,4 @@ package scala.annotation.meta /** * Consult the documentation in package [[scala.annotation.meta]]. */ -final class getter extends annotation.StaticAnnotation +final class getter extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/languageFeature.scala b/src/library/scala/annotation/meta/languageFeature.scala index 23acc01b51..2e0ddb91cf 100644 --- a/src/library/scala/annotation/meta/languageFeature.scala +++ b/src/library/scala/annotation/meta/languageFeature.scala @@ -10,4 +10,4 @@ package scala.annotation.meta /** * An annotation giving particulars for a language feature in object `scala.language`. */ -final class languageFeature(feature: String, enableRequired: Boolean) extends annotation.StaticAnnotation +final class languageFeature(feature: String, enableRequired: Boolean) extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/param.scala b/src/library/scala/annotation/meta/param.scala index d9ebcc76d3..ef535d79c6 100644 --- a/src/library/scala/annotation/meta/param.scala +++ b/src/library/scala/annotation/meta/param.scala @@ -10,4 +10,4 @@ package scala.annotation.meta /** * Consult the documentation in package [[scala.annotation.meta]]. */ -final class param extends annotation.StaticAnnotation +final class param extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/meta/setter.scala b/src/library/scala/annotation/meta/setter.scala index c27cee2985..87ee2e28f4 100644 --- a/src/library/scala/annotation/meta/setter.scala +++ b/src/library/scala/annotation/meta/setter.scala @@ -10,4 +10,4 @@ package scala.annotation.meta /** * Consult the documentation in package [[scala.annotation.meta]]. */ -final class setter extends annotation.StaticAnnotation +final class setter extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/migration.scala b/src/library/scala/annotation/migration.scala index 8ab12a7c8e..f60c827620 100644 --- a/src/library/scala/annotation/migration.scala +++ b/src/library/scala/annotation/migration.scala @@ -24,7 +24,7 @@ package scala.annotation * * @since 2.8 */ - private[scala] final class migration(message: String, changedIn: String) extends annotation.StaticAnnotation { + private[scala] final class migration(message: String, changedIn: String) extends scala.annotation.StaticAnnotation { @deprecated("Use the constructor taking two Strings instead.", "2.10") def this(majorVersion: Int, minorVersion: Int, message: String) = this(message, majorVersion + "." + minorVersion) - }
\ No newline at end of file + } diff --git a/src/library/scala/annotation/serializable.scala b/src/library/scala/annotation/serializable.scala index 5a0d1261d6..e300ae9010 100644 --- a/src/library/scala/annotation/serializable.scala +++ b/src/library/scala/annotation/serializable.scala @@ -12,4 +12,4 @@ package scala.annotation * An annotation that designates the class to which it is applied as serializable */ @deprecated("instead of `@serializable class C`, use `class C extends Serializable`", "2.9.0") -class serializable extends annotation.StaticAnnotation +class serializable extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/strictfp.scala b/src/library/scala/annotation/strictfp.scala index e4efa6e663..4c33ea9678 100644 --- a/src/library/scala/annotation/strictfp.scala +++ b/src/library/scala/annotation/strictfp.scala @@ -15,4 +15,4 @@ package scala.annotation * @version 2.9 * @since 2.9 */ -class strictfp extends annotation.StaticAnnotation +class strictfp extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/switch.scala b/src/library/scala/annotation/switch.scala index ee068f50d4..a867783455 100644 --- a/src/library/scala/annotation/switch.scala +++ b/src/library/scala/annotation/switch.scala @@ -26,4 +26,4 @@ package scala.annotation * @author Paul Phillips * @since 2.8 */ -final class switch extends annotation.StaticAnnotation +final class switch extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/tailrec.scala b/src/library/scala/annotation/tailrec.scala index 14775535e8..020f0c4325 100644 --- a/src/library/scala/annotation/tailrec.scala +++ b/src/library/scala/annotation/tailrec.scala @@ -16,4 +16,4 @@ package scala.annotation * * @since 2.8 */ -final class tailrec extends annotation.StaticAnnotation +final class tailrec extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/unchecked/uncheckedStable.scala b/src/library/scala/annotation/unchecked/uncheckedStable.scala index 13b500fe44..8162a3ab11 100644 --- a/src/library/scala/annotation/unchecked/uncheckedStable.scala +++ b/src/library/scala/annotation/unchecked/uncheckedStable.scala @@ -12,4 +12,4 @@ package scala.annotation.unchecked * * @since 2.7 */ -final class uncheckedStable extends annotation.StaticAnnotation {} +final class uncheckedStable extends scala.annotation.StaticAnnotation {} diff --git a/src/library/scala/annotation/unchecked/uncheckedVariance.scala b/src/library/scala/annotation/unchecked/uncheckedVariance.scala index 51433be79f..61a0ebc6b8 100644 --- a/src/library/scala/annotation/unchecked/uncheckedVariance.scala +++ b/src/library/scala/annotation/unchecked/uncheckedVariance.scala @@ -12,4 +12,4 @@ package scala.annotation.unchecked * * @since 2.7 */ -final class uncheckedVariance extends annotation.StaticAnnotation {} +final class uncheckedVariance extends scala.annotation.StaticAnnotation {} diff --git a/src/library/scala/annotation/unspecialized.scala b/src/library/scala/annotation/unspecialized.scala index 28d9aa169c..717ca1597d 100644 --- a/src/library/scala/annotation/unspecialized.scala +++ b/src/library/scala/annotation/unspecialized.scala @@ -14,4 +14,4 @@ package scala.annotation * * @since 2.10 */ -class unspecialized extends annotation.StaticAnnotation +class unspecialized extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/annotation/varargs.scala b/src/library/scala/annotation/varargs.scala index 1d7a2f7183..b44f8c505e 100644 --- a/src/library/scala/annotation/varargs.scala +++ b/src/library/scala/annotation/varargs.scala @@ -14,4 +14,4 @@ package scala.annotation * * @since 2.9 */ -final class varargs extends annotation.StaticAnnotation +final class varargs extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/beans/BeanDescription.scala b/src/library/scala/beans/BeanDescription.scala index d6c9b0c736..5e1d3b873e 100644 --- a/src/library/scala/beans/BeanDescription.scala +++ b/src/library/scala/beans/BeanDescription.scala @@ -15,5 +15,5 @@ package scala.beans * * @author Ross Judson (rjudson@managedobjects.com) */ -class BeanDescription(val description: String) extends annotation.Annotation +class BeanDescription(val description: String) extends scala.annotation.Annotation diff --git a/src/library/scala/beans/BeanDisplayName.scala b/src/library/scala/beans/BeanDisplayName.scala index fbbfa08ffc..2c862e3700 100644 --- a/src/library/scala/beans/BeanDisplayName.scala +++ b/src/library/scala/beans/BeanDisplayName.scala @@ -14,5 +14,5 @@ package scala.beans * * @author Ross Judson (rjudson@managedobjects.com) */ -class BeanDisplayName(val name: String) extends annotation.Annotation +class BeanDisplayName(val name: String) extends scala.annotation.Annotation diff --git a/src/library/scala/beans/BeanInfo.scala b/src/library/scala/beans/BeanInfo.scala index 1a1d8defa4..23a55edfc5 100644 --- a/src/library/scala/beans/BeanInfo.scala +++ b/src/library/scala/beans/BeanInfo.scala @@ -17,4 +17,4 @@ package scala.beans * * @author Ross Judson (rjudson@managedobjects.com) */ -class BeanInfo extends annotation.Annotation +class BeanInfo extends scala.annotation.Annotation diff --git a/src/library/scala/beans/BeanInfoSkip.scala b/src/library/scala/beans/BeanInfoSkip.scala index 23adf74924..f08dde99d9 100644 --- a/src/library/scala/beans/BeanInfoSkip.scala +++ b/src/library/scala/beans/BeanInfoSkip.scala @@ -15,4 +15,4 @@ package scala.beans * * @author Ross Judson (rjudson@managedobjects.com) */ -class BeanInfoSkip extends annotation.Annotation +class BeanInfoSkip extends scala.annotation.Annotation diff --git a/src/library/scala/beans/BeanProperty.scala b/src/library/scala/beans/BeanProperty.scala index 4a2fb716c7..ab63e92c6f 100644 --- a/src/library/scala/beans/BeanProperty.scala +++ b/src/library/scala/beans/BeanProperty.scala @@ -23,4 +23,4 @@ package scala.beans * use the `scala.beans.BooleanBeanProperty` annotation instead. */ @scala.annotation.meta.field -class BeanProperty extends annotation.StaticAnnotation +class BeanProperty extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/beans/BooleanBeanProperty.scala b/src/library/scala/beans/BooleanBeanProperty.scala index 1c85a88c84..972d8fb77e 100644 --- a/src/library/scala/beans/BooleanBeanProperty.scala +++ b/src/library/scala/beans/BooleanBeanProperty.scala @@ -13,4 +13,4 @@ package scala.beans * named `isFieldName` instead of `getFieldName`. */ @scala.annotation.meta.field -class BooleanBeanProperty extends annotation.StaticAnnotation +class BooleanBeanProperty extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/collection/GenIterableViewLike.scala b/src/library/scala/collection/GenIterableViewLike.scala index 9e3927eaf4..142561df20 100644 --- a/src/library/scala/collection/GenIterableViewLike.scala +++ b/src/library/scala/collection/GenIterableViewLike.scala @@ -25,6 +25,7 @@ self => def iterator: Iterator[B] override def foreach[U](f: B => U): Unit = iterator foreach f override def toString = viewToString + override def isEmpty = !iterator.hasNext } trait EmptyView extends Transformed[Nothing] with super.EmptyView { diff --git a/src/library/scala/collection/GenTraversableLike.scala b/src/library/scala/collection/GenTraversableLike.scala index 9b04256c8d..987f124f55 100644 --- a/src/library/scala/collection/GenTraversableLike.scala +++ b/src/library/scala/collection/GenTraversableLike.scala @@ -10,7 +10,7 @@ package scala.collection import generic._ -import annotation.migration +import scala.annotation.migration /** A template trait for all traversable collections upon which operations diff --git a/src/library/scala/collection/GenTraversableOnce.scala b/src/library/scala/collection/GenTraversableOnce.scala index 4e0f71ee8b..a872bc0948 100644 --- a/src/library/scala/collection/GenTraversableOnce.scala +++ b/src/library/scala/collection/GenTraversableOnce.scala @@ -11,7 +11,7 @@ package scala.collection import scala.reflect.ClassTag import scala.collection.generic.CanBuildFrom import scala.annotation.unchecked.{ uncheckedVariance => uV } -import language.higherKinds +import scala.language.higherKinds /** A template trait for all traversable-once objects which may be * traversed in parallel. @@ -507,7 +507,7 @@ trait GenTraversableOnce[+A] extends Any { * $willNotTerminateInf * @return a buffer containing all elements of this $coll. */ - def toBuffer[A1 >: A]: collection.mutable.Buffer[A1] + def toBuffer[A1 >: A]: scala.collection.mutable.Buffer[A1] /** Converts this $coll to an unspecified Traversable. Will return * the same collection if this instance is already Traversable. @@ -565,7 +565,7 @@ trait GenTraversableOnce[+A] extends Any { /** Converts this $coll into another by copying all elements. * @tparam Col The collection type to build. * @return a new collection containing all elements of this $coll. - * + * * @usecase def to[Col[_]]: Col[A] * @inheritdoc * $willNotTerminateInf diff --git a/src/library/scala/collection/IterableLike.scala b/src/library/scala/collection/IterableLike.scala index ac6d754f9e..7ef3b39576 100644 --- a/src/library/scala/collection/IterableLike.scala +++ b/src/library/scala/collection/IterableLike.scala @@ -11,7 +11,7 @@ package scala.collection import generic._ import immutable.{ List, Stream } -import annotation.unchecked.uncheckedVariance +import scala.annotation.unchecked.uncheckedVariance /** A template trait for iterable collections of type `Iterable[A]`. * $iterableInfo diff --git a/src/library/scala/collection/IterableViewLike.scala b/src/library/scala/collection/IterableViewLike.scala index e0c8b21d09..d9ccb3f011 100644 --- a/src/library/scala/collection/IterableViewLike.scala +++ b/src/library/scala/collection/IterableViewLike.scala @@ -11,7 +11,7 @@ package scala.collection import generic._ import TraversableView.NoBuilder import immutable.Stream -import language.implicitConversions +import scala.language.implicitConversions /** A template trait for non-strict views of iterable collections. * $iterableViewInfo diff --git a/src/library/scala/collection/Iterator.scala b/src/library/scala/collection/Iterator.scala index 5f369de3b7..9989a8d9e8 100644 --- a/src/library/scala/collection/Iterator.scala +++ b/src/library/scala/collection/Iterator.scala @@ -9,7 +9,7 @@ package scala.collection import mutable.ArrayBuffer -import annotation.migration +import scala.annotation.migration import immutable.Stream import scala.collection.generic.CanBuildFrom import scala.annotation.unchecked.{ uncheckedVariance => uV } @@ -393,7 +393,7 @@ trait Iterator[+A] extends TraversableOnce[A] { def next() = if (hasNext) { hdDefined = false; hd } else empty.next() } - + /** Tests whether every element of this iterator relates to the * corresponding element of another collection by satisfying a test predicate. * @@ -1140,7 +1140,7 @@ trait Iterator[+A] extends TraversableOnce[A] { def toStream: Stream[A] = if (self.hasNext) Stream.cons(self.next, self.toStream) else Stream.empty[A] - + /** Converts this iterator to a string. * diff --git a/src/library/scala/collection/LinearSeqLike.scala b/src/library/scala/collection/LinearSeqLike.scala index bfe27ef94a..8e72c5618c 100644 --- a/src/library/scala/collection/LinearSeqLike.scala +++ b/src/library/scala/collection/LinearSeqLike.scala @@ -13,7 +13,7 @@ import generic._ import mutable.ListBuffer import immutable.List import scala.util.control.Breaks._ -import annotation.tailrec +import scala.annotation.tailrec /** A template trait for linear sequences of type `LinearSeq[A]`. * diff --git a/src/library/scala/collection/MapLike.scala b/src/library/scala/collection/MapLike.scala index ed2a877631..3877f07089 100644 --- a/src/library/scala/collection/MapLike.scala +++ b/src/library/scala/collection/MapLike.scala @@ -11,7 +11,7 @@ package scala.collection import generic._ import mutable.{ Builder, MapBuilder } -import annotation.{migration, bridge} +import scala.annotation.{migration, bridge} import parallel.ParMap /** A template trait for maps, which associate keys with values. @@ -226,21 +226,21 @@ self => */ def default(key: A): B = throw new NoSuchElementException("key not found: " + key) - + protected class FilteredKeys(p: A => Boolean) extends AbstractMap[A, B] with DefaultMap[A, B] { override def foreach[C](f: ((A, B)) => C): Unit = for (kv <- self) if (p(kv._1)) f(kv) def iterator = self.iterator.filter(kv => p(kv._1)) override def contains(key: A) = self.contains(key) && p(key) def get(key: A) = if (!p(key)) None else self.get(key) } - + /** Filters this map by retaining only keys satisfying a predicate. * @param p the predicate used to test keys * @return an immutable map consisting only of those key value pairs of this map where the key satisfies * the predicate `p`. The resulting map wraps the original map without copying any elements. */ def filterKeys(p: A => Boolean): Map[A, B] = new FilteredKeys(p) - + protected class MappedValues[C](f: B => C) extends AbstractMap[A, C] with DefaultMap[A, C] { override def foreach[D](g: ((A, C)) => D): Unit = for ((k, v) <- self) g((k, f(v))) def iterator = for ((k, v) <- self.iterator) yield (k, f(v)) @@ -248,7 +248,7 @@ self => override def contains(key: A) = self.contains(key) def get(key: A) = self.get(key).map(f) } - + /** Transforms this map by applying a function to every retrieved value. * @param f the function used to transform values of this map. * @return a map view which maps every key of this map diff --git a/src/library/scala/collection/SetLike.scala b/src/library/scala/collection/SetLike.scala index 04ec4af830..b359044f0d 100644 --- a/src/library/scala/collection/SetLike.scala +++ b/src/library/scala/collection/SetLike.scala @@ -11,7 +11,7 @@ package scala.collection import generic._ import mutable.{ Builder, SetBuilder } -import annotation.{migration, bridge} +import scala.annotation.{migration, bridge} import parallel.ParSet /** A template trait for sets. diff --git a/src/library/scala/collection/TraversableLike.scala b/src/library/scala/collection/TraversableLike.scala index b2051bf209..411d17e935 100644 --- a/src/library/scala/collection/TraversableLike.scala +++ b/src/library/scala/collection/TraversableLike.scala @@ -10,10 +10,10 @@ package scala.collection import generic._ import mutable.{ Builder } -import annotation.{tailrec, migration, bridge} -import annotation.unchecked.{ uncheckedVariance => uV } +import scala.annotation.{tailrec, migration, bridge} +import scala.annotation.unchecked.{ uncheckedVariance => uV } import parallel.ParIterable -import language.higherKinds +import scala.language.higherKinds /** A template trait for traversable collections of type `Traversable[A]`. * diff --git a/src/library/scala/collection/TraversableOnce.scala b/src/library/scala/collection/TraversableOnce.scala index fb73805cc5..d77d278fca 100644 --- a/src/library/scala/collection/TraversableOnce.scala +++ b/src/library/scala/collection/TraversableOnce.scala @@ -10,9 +10,9 @@ package scala.collection import mutable.{ Buffer, Builder, ListBuffer, ArrayBuffer } import generic.CanBuildFrom -import annotation.unchecked.{ uncheckedVariance => uV } -import language.{implicitConversions, higherKinds} -import reflect.ClassTag +import scala.annotation.unchecked.{ uncheckedVariance => uV } +import scala.language.{implicitConversions, higherKinds} +import scala.reflect.ClassTag /** A template trait for collections which can be traversed either once only * or one or more times. @@ -374,12 +374,12 @@ object TraversableOnce { implicit def alternateImplicit[A](trav: TraversableOnce[A]) = new ForceImplicitAmbiguity implicit def flattenTraversableOnce[A, CC[_]](travs: TraversableOnce[CC[A]])(implicit ev: CC[A] => TraversableOnce[A]) = new FlattenOps[A](travs map ev) - + /* Functionality reused in Iterator.CanBuildFrom */ private[collection] abstract class BufferedCanBuildFrom[A, Coll[X] <: TraversableOnce[X]] extends generic.CanBuildFrom[Coll[_], A, Coll[A]] { def bufferToColl[B](buff: ArrayBuffer[B]): Coll[B] def traversableToColl[B](t: GenTraversable[B]): Coll[B] - + def newIterator: Builder[A, Coll[A]] = new ArrayBuffer[A] mapResult bufferToColl /** Creates a new builder on request of a collection. @@ -398,7 +398,7 @@ object TraversableOnce { */ def apply() = newIterator } - + /** With the advent of `TraversableOnce`, it can be useful to have a builder which * operates on `Iterator`s so they can be treated uniformly along with the collections. * See `scala.util.Random.shuffle` or `scala.concurrent.Future.sequence` for an example. @@ -407,10 +407,10 @@ object TraversableOnce { def bufferToColl[B](buff: ArrayBuffer[B]) = buff.iterator def traversableToColl[B](t: GenTraversable[B]) = t.seq } - + /** Evidence for building collections from `TraversableOnce` collections */ implicit def OnceCanBuildFrom[A] = new OnceCanBuildFrom[A] - + class FlattenOps[A](travs: TraversableOnce[TraversableOnce[A]]) { def flatten: Iterator[A] = new AbstractIterator[A] { val its = travs.toIterator diff --git a/src/library/scala/collection/TraversableProxyLike.scala b/src/library/scala/collection/TraversableProxyLike.scala index 74b30e0faf..b7be87b125 100644 --- a/src/library/scala/collection/TraversableProxyLike.scala +++ b/src/library/scala/collection/TraversableProxyLike.scala @@ -12,7 +12,7 @@ package scala.collection import generic._ import mutable.{Buffer, StringBuilder} -import reflect.ClassTag +import scala.reflect.ClassTag // Methods could be printed by cat TraversableLike.scala | egrep '^ (override )?def' diff --git a/src/library/scala/collection/TraversableViewLike.scala b/src/library/scala/collection/TraversableViewLike.scala index 7fbcf1374b..5ee32e90b2 100644 --- a/src/library/scala/collection/TraversableViewLike.scala +++ b/src/library/scala/collection/TraversableViewLike.scala @@ -11,8 +11,8 @@ package scala.collection import generic._ import mutable.{ Builder, ArrayBuffer } import TraversableView.NoBuilder -import annotation.migration -import language.implicitConversions +import scala.annotation.migration +import scala.language.implicitConversions trait ViewMkString[+A] { self: Traversable[A] => diff --git a/src/library/scala/collection/concurrent/TrieMap.scala b/src/library/scala/collection/concurrent/TrieMap.scala index 3d0aa6fd07..7609910b65 100644 --- a/src/library/scala/collection/concurrent/TrieMap.scala +++ b/src/library/scala/collection/concurrent/TrieMap.scala @@ -9,17 +9,14 @@ package scala.collection package concurrent - - import java.util.concurrent.atomic._ -import collection.immutable.{ ListMap => ImmutableListMap } -import collection.parallel.mutable.ParTrieMap -import util.hashing.Hashing +import scala.collection.immutable.{ ListMap => ImmutableListMap } +import scala.collection.parallel.mutable.ParTrieMap +import scala.util.hashing.Hashing +import scala.util.control.ControlThrowable import generic._ -import annotation.tailrec -import annotation.switch - - +import scala.annotation.tailrec +import scala.annotation.switch private[collection] final class INode[K, V](bn: MainNode[K, V], g: Gen) extends INodeBase[K, V](g) { import INodeBase._ @@ -647,22 +644,22 @@ extends scala.collection.concurrent.Map[K, V] def hashing = hashingobj def equality = equalityobj @volatile var root = r - + def this(hashf: Hashing[K], ef: Equiv[K]) = this( INode.newRootNode, AtomicReferenceFieldUpdater.newUpdater(classOf[TrieMap[K, V]], classOf[AnyRef], "root"), hashf, ef ) - + def this() = this(Hashing.default, Equiv.universal) - + /* internal methods */ private def writeObject(out: java.io.ObjectOutputStream) { out.writeObject(hashf) out.writeObject(ef) - + val it = iterator while (it.hasNext) { val (k, v) = it.next() @@ -678,7 +675,7 @@ extends scala.collection.concurrent.Map[K, V] hashingobj = in.readObject().asInstanceOf[Hashing[K]] equalityobj = in.readObject().asInstanceOf[Equiv[K]] - + var obj: AnyRef = null do { obj = in.readObject() @@ -816,7 +813,7 @@ extends scala.collection.concurrent.Map[K, V] * * This method is used by other methods such as `size` and `iterator`. */ - @tailrec final def readOnlySnapshot(): collection.Map[K, V] = { + @tailrec final def readOnlySnapshot(): scala.collection.Map[K, V] = { val r = RDCSS_READ_ROOT() val expmain = r.gcasRead(this) if (RDCSS_ROOT(r, expmain, r.copyToGen(new Gen, this))) new TrieMap(r, null, hashing, equality) @@ -827,10 +824,10 @@ extends scala.collection.concurrent.Map[K, V] val r = RDCSS_READ_ROOT() if (!RDCSS_ROOT(r, r.gcasRead(this), INode.newRootNode[K, V])) clear() } - + @inline def computeHash(k: K) = hashingobj.hash(k) - + final def lookup(k: K): V = { val hc = computeHash(k) lookuphc(k, hc).asInstanceOf[V] @@ -917,11 +914,11 @@ object TrieMap extends MutableMapFactory[TrieMap] { implicit def canBuildFrom[K, V]: CanBuildFrom[Coll, (K, V), TrieMap[K, V]] = new MapCanBuildFrom[K, V] def empty[K, V]: TrieMap[K, V] = new TrieMap[K, V] - + class MangledHashing[K] extends Hashing[K] { def hash(k: K) = util.hashing.byteswap32(k.##) } - + } @@ -1058,7 +1055,7 @@ private[collection] class TrieMapIterator[K, V](var level: Int, private var ct: } -private[concurrent] object RestartException extends util.control.ControlThrowable +private[concurrent] object RestartException extends ControlThrowable /** Only used for ctrie serialization. */ @@ -1067,7 +1064,7 @@ private[concurrent] case object TrieMapSerializationEnd private[concurrent] object Debug { - import collection._ + import scala.collection._ lazy val logbuffer = new java.util.concurrent.ConcurrentLinkedQueue[AnyRef] @@ -1083,13 +1080,3 @@ private[concurrent] object Debug { } } - - - - - - - - - - diff --git a/src/library/scala/collection/convert/DecorateAsJava.scala b/src/library/scala/collection/convert/DecorateAsJava.scala index bde13f2830..e14769739d 100644 --- a/src/library/scala/collection/convert/DecorateAsJava.scala +++ b/src/library/scala/collection/convert/DecorateAsJava.scala @@ -12,7 +12,7 @@ package convert import java.{ lang => jl, util => ju }, java.util.{ concurrent => juc } import Decorators._ import WrapAsJava._ -import language.implicitConversions +import scala.language.implicitConversions /** A collection of decorators that allow to convert between diff --git a/src/library/scala/collection/convert/DecorateAsScala.scala b/src/library/scala/collection/convert/DecorateAsScala.scala index 539584b148..4ee7e2d1c7 100644 --- a/src/library/scala/collection/convert/DecorateAsScala.scala +++ b/src/library/scala/collection/convert/DecorateAsScala.scala @@ -12,7 +12,7 @@ package convert import java.{ lang => jl, util => ju }, java.util.{ concurrent => juc } import Decorators._ import WrapAsScala._ -import language.implicitConversions +import scala.language.implicitConversions trait DecorateAsScala { /** diff --git a/src/library/scala/collection/convert/WrapAsJava.scala b/src/library/scala/collection/convert/WrapAsJava.scala index fcfe402a68..c79c651e96 100644 --- a/src/library/scala/collection/convert/WrapAsJava.scala +++ b/src/library/scala/collection/convert/WrapAsJava.scala @@ -11,7 +11,7 @@ package convert import java.{ lang => jl, util => ju }, java.util.{ concurrent => juc } import Wrappers._ -import language.implicitConversions +import scala.language.implicitConversions trait WrapAsJava { /** @@ -253,7 +253,7 @@ trait WrapAsJava { case JConcurrentMapDeprecatedWrapper(wrapped) => wrapped case _ => new ConcurrentMapDeprecatedWrapper(m) } - + /** * Implicitly converts a Scala mutable `concurrent.Map` to a Java * `ConcurrentMap`. diff --git a/src/library/scala/collection/convert/WrapAsScala.scala b/src/library/scala/collection/convert/WrapAsScala.scala index c2994a0986..6ef4243d0d 100644 --- a/src/library/scala/collection/convert/WrapAsScala.scala +++ b/src/library/scala/collection/convert/WrapAsScala.scala @@ -11,7 +11,7 @@ package convert import java.{ lang => jl, util => ju }, java.util.{ concurrent => juc } import Wrappers._ -import language.implicitConversions +import scala.language.implicitConversions trait LowPriorityWrapAsScala { this: WrapAsScala => diff --git a/src/library/scala/collection/convert/Wrappers.scala b/src/library/scala/collection/convert/Wrappers.scala index 75707b69b0..a459aa15be 100644 --- a/src/library/scala/collection/convert/Wrappers.scala +++ b/src/library/scala/collection/convert/Wrappers.scala @@ -96,6 +96,9 @@ private[collection] trait Wrappers { def remove(i: Int) = underlying.remove(i) def clear() = underlying.clear() def result = this + // Note: Clone cannot just call underlying.clone because in Java, only specific collections + // expose clone methods. Generically, they're protected. + override def clone(): JListWrapper[A] = JListWrapper(new ju.ArrayList[A](underlying)) } class SetWrapper[A](underlying: Set[A]) extends ju.AbstractSet[A] { @@ -149,6 +152,10 @@ private[collection] trait Wrappers { override def clear() = underlying.clear() override def empty = JSetWrapper(new ju.HashSet[A]) + // Note: Clone cannot just call underlying.clone because in Java, only specific collections + // expose clone methods. Generically, they're protected. + override def clone() = + new JSetWrapper[A](new ju.LinkedHashSet[A](underlying)) } class MapWrapper[A, B](underlying: Map[A, B]) extends ju.AbstractMap[A, B] { self => @@ -171,12 +178,12 @@ private[collection] trait Wrappers { var prev : Option[A] = None def hasNext = ui.hasNext - + def next() = { val (k, v) = ui.next prev = Some(k) new ju.Map.Entry[A, B] { - import util.hashing.byteswap32 + import scala.util.hashing.byteswap32 def getKey = k def getValue = v def setValue(v1 : B) = self.put(k, v1) diff --git a/src/library/scala/collection/generic/ClassTagTraversableFactory.scala b/src/library/scala/collection/generic/ClassTagTraversableFactory.scala index 95835d3e90..c9c75a5f23 100644 --- a/src/library/scala/collection/generic/ClassTagTraversableFactory.scala +++ b/src/library/scala/collection/generic/ClassTagTraversableFactory.scala @@ -9,8 +9,8 @@ package scala.collection package generic -import language.higherKinds -import reflect.ClassTag +import scala.language.higherKinds +import scala.reflect.ClassTag /** A template for companion objects of `ClassTagTraversable` and * subclasses thereof. diff --git a/src/library/scala/collection/generic/GenMapFactory.scala b/src/library/scala/collection/generic/GenMapFactory.scala index 31fe4e100d..6ce99646e8 100644 --- a/src/library/scala/collection/generic/GenMapFactory.scala +++ b/src/library/scala/collection/generic/GenMapFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic import mutable.{Builder, MapBuilder} -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `Map` and subclasses thereof. * diff --git a/src/library/scala/collection/generic/GenSeqFactory.scala b/src/library/scala/collection/generic/GenSeqFactory.scala index 19eeba9b1d..bb352f707c 100644 --- a/src/library/scala/collection/generic/GenSeqFactory.scala +++ b/src/library/scala/collection/generic/GenSeqFactory.scala @@ -11,7 +11,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of Seq and subclasses thereof. * diff --git a/src/library/scala/collection/generic/GenSetFactory.scala b/src/library/scala/collection/generic/GenSetFactory.scala index 4f812b337c..526927ce26 100644 --- a/src/library/scala/collection/generic/GenSetFactory.scala +++ b/src/library/scala/collection/generic/GenSetFactory.scala @@ -12,7 +12,7 @@ package scala.collection package generic import mutable.Builder -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `Set` and subclasses thereof. * diff --git a/src/library/scala/collection/generic/GenTraversableFactory.scala b/src/library/scala/collection/generic/GenTraversableFactory.scala index 6614dbdc62..91faed9e48 100644 --- a/src/library/scala/collection/generic/GenTraversableFactory.scala +++ b/src/library/scala/collection/generic/GenTraversableFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `Traversable` and subclasses thereof. * This class provides a set of operations to create `$Coll` objects. diff --git a/src/library/scala/collection/generic/GenericClassTagCompanion.scala b/src/library/scala/collection/generic/GenericClassTagCompanion.scala index 8cce592627..fd5a3bae4c 100644 --- a/src/library/scala/collection/generic/GenericClassTagCompanion.scala +++ b/src/library/scala/collection/generic/GenericClassTagCompanion.scala @@ -10,8 +10,8 @@ package scala.collection package generic import mutable.Builder -import language.higherKinds -import reflect.ClassTag +import scala.language.higherKinds +import scala.reflect.ClassTag /** This class represents companions of classes which require ClassTags * for their element types. diff --git a/src/library/scala/collection/generic/GenericClassTagTraversableTemplate.scala b/src/library/scala/collection/generic/GenericClassTagTraversableTemplate.scala index d368d0007b..d5d6c53c1e 100644 --- a/src/library/scala/collection/generic/GenericClassTagTraversableTemplate.scala +++ b/src/library/scala/collection/generic/GenericClassTagTraversableTemplate.scala @@ -10,9 +10,9 @@ package scala.collection package generic import mutable.Builder -import annotation.unchecked.uncheckedVariance -import language.higherKinds -import reflect.ClassTag +import scala.annotation.unchecked.uncheckedVariance +import scala.language.higherKinds +import scala.reflect.ClassTag /** This trait represents collections classes which require class * tags for their element types. diff --git a/src/library/scala/collection/generic/GenericCompanion.scala b/src/library/scala/collection/generic/GenericCompanion.scala index 1844542315..d4e77f68f5 100644 --- a/src/library/scala/collection/generic/GenericCompanion.scala +++ b/src/library/scala/collection/generic/GenericCompanion.scala @@ -10,7 +10,7 @@ package scala.collection package generic import mutable.Builder -import language.higherKinds +import scala.language.higherKinds /** A template class for companion objects of "regular" collection classes * represent an unconstrained higher-kinded type. Typically diff --git a/src/library/scala/collection/generic/GenericOrderedCompanion.scala b/src/library/scala/collection/generic/GenericOrderedCompanion.scala index 290dc435c8..ba432f012a 100644 --- a/src/library/scala/collection/generic/GenericOrderedCompanion.scala +++ b/src/library/scala/collection/generic/GenericOrderedCompanion.scala @@ -10,7 +10,7 @@ package scala.collection package generic import mutable.Builder -import language.higherKinds +import scala.language.higherKinds /** This class represents companions of classes which require the ordered trait * for their element types. diff --git a/src/library/scala/collection/generic/GenericOrderedTraversableTemplate.scala b/src/library/scala/collection/generic/GenericOrderedTraversableTemplate.scala index 6e04420315..b041670161 100644 --- a/src/library/scala/collection/generic/GenericOrderedTraversableTemplate.scala +++ b/src/library/scala/collection/generic/GenericOrderedTraversableTemplate.scala @@ -12,8 +12,8 @@ package scala.collection package generic import mutable.Builder -import annotation.unchecked.uncheckedVariance -import language.higherKinds +import scala.annotation.unchecked.uncheckedVariance +import scala.language.higherKinds /** This trait represents collections classes which require * ordered element types. diff --git a/src/library/scala/collection/generic/GenericParCompanion.scala b/src/library/scala/collection/generic/GenericParCompanion.scala index 484da5c6d9..aea7d8f25a 100644 --- a/src/library/scala/collection/generic/GenericParCompanion.scala +++ b/src/library/scala/collection/generic/GenericParCompanion.scala @@ -11,7 +11,7 @@ package scala.collection.generic import scala.collection.parallel.Combiner import scala.collection.parallel.ParIterable import scala.collection.parallel.ParMap -import language.higherKinds +import scala.language.higherKinds /** A template class for companion objects of parallel collection classes. * They should be mixed in together with `GenericCompanion` type. diff --git a/src/library/scala/collection/generic/GenericParTemplate.scala b/src/library/scala/collection/generic/GenericParTemplate.scala index fc1c3f5eaa..3dfdc98133 100644 --- a/src/library/scala/collection/generic/GenericParTemplate.scala +++ b/src/library/scala/collection/generic/GenericParTemplate.scala @@ -13,8 +13,8 @@ import scala.collection.parallel.ParIterable import scala.collection.parallel.ParMap import scala.collection.parallel.TaskSupport -import annotation.unchecked.uncheckedVariance -import language.higherKinds +import scala.annotation.unchecked.uncheckedVariance +import scala.language.higherKinds /** A template trait for collections having a companion. * @@ -29,7 +29,7 @@ extends GenericTraversableTemplate[A, CC] { def companion: GenericCompanion[CC] with GenericParCompanion[CC] - protected[this] override def newBuilder: collection.mutable.Builder[A, CC[A]] = newCombiner + protected[this] override def newBuilder: scala.collection.mutable.Builder[A, CC[A]] = newCombiner protected[this] override def newCombiner: Combiner[A, CC[A]] = { val cb = companion.newCombiner[A] diff --git a/src/library/scala/collection/generic/GenericSeqCompanion.scala b/src/library/scala/collection/generic/GenericSeqCompanion.scala index 90063c1ca2..63fca78a98 100644 --- a/src/library/scala/collection/generic/GenericSeqCompanion.scala +++ b/src/library/scala/collection/generic/GenericSeqCompanion.scala @@ -10,7 +10,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds trait GenericSeqCompanion[CC[X] <: Traversable[X]] - extends GenericCompanion[CC]
\ No newline at end of file + extends GenericCompanion[CC] diff --git a/src/library/scala/collection/generic/GenericSetTemplate.scala b/src/library/scala/collection/generic/GenericSetTemplate.scala index 221bcfb379..cf7259100d 100644 --- a/src/library/scala/collection/generic/GenericSetTemplate.scala +++ b/src/library/scala/collection/generic/GenericSetTemplate.scala @@ -8,7 +8,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds /** * @since 2.8 */ diff --git a/src/library/scala/collection/generic/GenericTraversableTemplate.scala b/src/library/scala/collection/generic/GenericTraversableTemplate.scala index 7cb0e812d8..62e7061237 100644 --- a/src/library/scala/collection/generic/GenericTraversableTemplate.scala +++ b/src/library/scala/collection/generic/GenericTraversableTemplate.scala @@ -12,9 +12,9 @@ package scala.collection package generic import mutable.Builder -import annotation.migration -import annotation.unchecked.uncheckedVariance -import language.higherKinds +import scala.annotation.migration +import scala.annotation.unchecked.uncheckedVariance +import scala.language.higherKinds /** A template class for companion objects of ``regular`` collection classes * that represent an unconstrained higher-kinded type. @@ -128,7 +128,7 @@ trait GenericTraversableTemplate[+A, +CC[X] <: GenTraversable[X]] extends HasNew * @usecase def flatten[B]: $Coll[B] * * @inheritdoc - * + * * The resulting collection's type will be guided by the * static type of $coll. For example: * @@ -138,7 +138,7 @@ trait GenericTraversableTemplate[+A, +CC[X] <: GenTraversable[X]] extends HasNew * * val ys = Set(List(1, 2, 3), List(3, 2, 1)) * // ys == Set(1, 2, 3) - * }}} + * }}} */ def flatten[B](implicit asTraversable: A => /*<:<!!!*/ GenTraversableOnce[B]): CC[B] = { val b = genericBuilder[B] diff --git a/src/library/scala/collection/generic/ImmutableMapFactory.scala b/src/library/scala/collection/generic/ImmutableMapFactory.scala index d893188e92..9448222568 100644 --- a/src/library/scala/collection/generic/ImmutableMapFactory.scala +++ b/src/library/scala/collection/generic/ImmutableMapFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `immutable.Map` and subclasses thereof. * @author Martin Odersky diff --git a/src/library/scala/collection/generic/ImmutableSetFactory.scala b/src/library/scala/collection/generic/ImmutableSetFactory.scala index 7bd5bf2ef8..b6dc85470f 100644 --- a/src/library/scala/collection/generic/ImmutableSetFactory.scala +++ b/src/library/scala/collection/generic/ImmutableSetFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic import mutable.{ Builder, SetBuilder } -import language.higherKinds +import scala.language.higherKinds abstract class ImmutableSetFactory[CC[X] <: immutable.Set[X] with SetLike[X, CC[X]]] extends SetFactory[CC] { diff --git a/src/library/scala/collection/generic/ImmutableSortedMapFactory.scala b/src/library/scala/collection/generic/ImmutableSortedMapFactory.scala index f415a52b4d..19c52b77ed 100644 --- a/src/library/scala/collection/generic/ImmutableSortedMapFactory.scala +++ b/src/library/scala/collection/generic/ImmutableSortedMapFactory.scala @@ -11,7 +11,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `SortedMap` and subclasses thereof. * diff --git a/src/library/scala/collection/generic/ImmutableSortedSetFactory.scala b/src/library/scala/collection/generic/ImmutableSortedSetFactory.scala index 1317bb4796..64f35c35c4 100644 --- a/src/library/scala/collection/generic/ImmutableSortedSetFactory.scala +++ b/src/library/scala/collection/generic/ImmutableSortedSetFactory.scala @@ -11,7 +11,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `SortedSet` and subclasses thereof. * diff --git a/src/library/scala/collection/generic/IsTraversableLike.scala b/src/library/scala/collection/generic/IsTraversableLike.scala index 7288322903..efa9178740 100644 --- a/src/library/scala/collection/generic/IsTraversableLike.scala +++ b/src/library/scala/collection/generic/IsTraversableLike.scala @@ -42,7 +42,7 @@ trait IsTraversableLike[Repr] { } object IsTraversableLike { - import language.higherKinds + import scala.language.higherKinds implicit val stringRepr: IsTraversableLike[String] { type A = Char } = new IsTraversableLike[String] { @@ -50,7 +50,7 @@ object IsTraversableLike { val conversion = implicitly[String => GenTraversableLike[Char, String]] } - implicit def genTraversableLikeRepr[C[_], A0](implicit conv: C[A0] => GenTraversableLike[A0,C[A0]]): IsTraversableLike[C[A0]] { type A = A0 } = + implicit def genTraversableLikeRepr[C[_], A0](implicit conv: C[A0] => GenTraversableLike[A0,C[A0]]): IsTraversableLike[C[A0]] { type A = A0 } = new IsTraversableLike[C[A0]] { type A = A0 val conversion = conv diff --git a/src/library/scala/collection/generic/IsTraversableOnce.scala b/src/library/scala/collection/generic/IsTraversableOnce.scala index b336553231..49675b4d5e 100644 --- a/src/library/scala/collection/generic/IsTraversableOnce.scala +++ b/src/library/scala/collection/generic/IsTraversableOnce.scala @@ -45,7 +45,7 @@ trait IsTraversableOnce[Repr] { } object IsTraversableOnce { - import language.higherKinds + import scala.language.higherKinds implicit val stringRepr: IsTraversableOnce[String] { type A = Char } = new IsTraversableOnce[String] { @@ -53,7 +53,7 @@ object IsTraversableOnce { val conversion = implicitly[String => GenTraversableOnce[Char]] } - implicit def genTraversableLikeRepr[C[_], A0](implicit conv: C[A0] => GenTraversableOnce[A0]): IsTraversableOnce[C[A0]] { type A = A0 } = + implicit def genTraversableLikeRepr[C[_], A0](implicit conv: C[A0] => GenTraversableOnce[A0]): IsTraversableOnce[C[A0]] { type A = A0 } = new IsTraversableOnce[C[A0]] { type A = A0 val conversion = conv diff --git a/src/library/scala/collection/generic/IterableForwarder.scala b/src/library/scala/collection/generic/IterableForwarder.scala index 89b67a6c18..d1ba252ba7 100644 --- a/src/library/scala/collection/generic/IterableForwarder.scala +++ b/src/library/scala/collection/generic/IterableForwarder.scala @@ -11,7 +11,7 @@ package scala.collection.generic import scala.collection._ -import collection.mutable.Buffer +import scala.collection.mutable.Buffer /** This trait implements a forwarder for iterable objects. It forwards * all calls to a different iterable object, except for diff --git a/src/library/scala/collection/generic/MapFactory.scala b/src/library/scala/collection/generic/MapFactory.scala index ce44ae9bf4..cbf5e06202 100644 --- a/src/library/scala/collection/generic/MapFactory.scala +++ b/src/library/scala/collection/generic/MapFactory.scala @@ -11,7 +11,7 @@ package generic import mutable.{Builder, MapBuilder} -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `Map` and subclasses thereof. * diff --git a/src/library/scala/collection/generic/MutableMapFactory.scala b/src/library/scala/collection/generic/MutableMapFactory.scala index 8b38b4ddd5..3b3d6d1946 100644 --- a/src/library/scala/collection/generic/MutableMapFactory.scala +++ b/src/library/scala/collection/generic/MutableMapFactory.scala @@ -12,7 +12,7 @@ package scala.collection package generic import mutable.Builder -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `mutable.Map` and subclasses thereof. * @author Martin Odersky diff --git a/src/library/scala/collection/generic/MutableSetFactory.scala b/src/library/scala/collection/generic/MutableSetFactory.scala index f130489814..516cbd722d 100644 --- a/src/library/scala/collection/generic/MutableSetFactory.scala +++ b/src/library/scala/collection/generic/MutableSetFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic import mutable.{ Builder, GrowingBuilder } -import language.higherKinds +import scala.language.higherKinds abstract class MutableSetFactory[CC[X] <: mutable.Set[X] with mutable.SetLike[X, CC[X]]] extends SetFactory[CC] { diff --git a/src/library/scala/collection/generic/MutableSortedSetFactory.scala b/src/library/scala/collection/generic/MutableSortedSetFactory.scala index 0e90ed999c..e5a69779f3 100644 --- a/src/library/scala/collection/generic/MutableSortedSetFactory.scala +++ b/src/library/scala/collection/generic/MutableSortedSetFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic import scala.collection.mutable.{ Builder, GrowingBuilder } -import language.higherKinds +import scala.language.higherKinds /** * @define Coll `mutable.SortedSet` diff --git a/src/library/scala/collection/generic/OrderedTraversableFactory.scala b/src/library/scala/collection/generic/OrderedTraversableFactory.scala index 92f166ae08..b3d096ccd2 100644 --- a/src/library/scala/collection/generic/OrderedTraversableFactory.scala +++ b/src/library/scala/collection/generic/OrderedTraversableFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds abstract class OrderedTraversableFactory[CC[X] <: Traversable[X] with GenericOrderedTraversableTemplate[X, CC]] extends GenericOrderedCompanion[CC] { diff --git a/src/library/scala/collection/generic/ParFactory.scala b/src/library/scala/collection/generic/ParFactory.scala index 41dca8fbe9..9624aafd06 100644 --- a/src/library/scala/collection/generic/ParFactory.scala +++ b/src/library/scala/collection/generic/ParFactory.scala @@ -10,7 +10,7 @@ package scala.collection.generic import scala.collection.parallel.ParIterable import scala.collection.parallel.Combiner -import language.higherKinds +import scala.language.higherKinds /** A template class for companion objects of `ParIterable` and subclasses * thereof. This class extends `TraversableFactory` and provides a set of diff --git a/src/library/scala/collection/generic/ParMapFactory.scala b/src/library/scala/collection/generic/ParMapFactory.scala index 5aedf67924..fdf23581f7 100644 --- a/src/library/scala/collection/generic/ParMapFactory.scala +++ b/src/library/scala/collection/generic/ParMapFactory.scala @@ -12,7 +12,7 @@ import scala.collection.parallel.ParMap import scala.collection.parallel.ParMapLike import scala.collection.parallel.Combiner import scala.collection.mutable.Builder -import language.higherKinds +import scala.language.higherKinds /** A template class for companion objects of `ParMap` and subclasses thereof. * This class extends `TraversableFactory` and provides a set of operations diff --git a/src/library/scala/collection/generic/ParSetFactory.scala b/src/library/scala/collection/generic/ParSetFactory.scala index 30a36a734a..e6db6f4721 100644 --- a/src/library/scala/collection/generic/ParSetFactory.scala +++ b/src/library/scala/collection/generic/ParSetFactory.scala @@ -8,11 +8,11 @@ package scala.collection.generic -import collection.mutable.Builder -import collection.parallel.Combiner -import collection.parallel.ParSet -import collection.parallel.ParSetLike -import language.higherKinds +import scala.collection.mutable.Builder +import scala.collection.parallel.Combiner +import scala.collection.parallel.ParSet +import scala.collection.parallel.ParSetLike +import scala.language.higherKinds /** * @author Aleksandar Prokopec diff --git a/src/library/scala/collection/generic/SeqFactory.scala b/src/library/scala/collection/generic/SeqFactory.scala index 3f61de6ceb..e943b93ef0 100644 --- a/src/library/scala/collection/generic/SeqFactory.scala +++ b/src/library/scala/collection/generic/SeqFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of Seq and subclasses thereof. * diff --git a/src/library/scala/collection/generic/SetFactory.scala b/src/library/scala/collection/generic/SetFactory.scala index 646e99dd1e..f386596c26 100644 --- a/src/library/scala/collection/generic/SetFactory.scala +++ b/src/library/scala/collection/generic/SetFactory.scala @@ -12,7 +12,7 @@ package scala.collection package generic import mutable.Builder -import language.higherKinds +import scala.language.higherKinds abstract class SetFactory[CC[X] <: Set[X] with SetLike[X, CC[X]]] - extends GenSetFactory[CC] with GenericSeqCompanion[CC]
\ No newline at end of file + extends GenSetFactory[CC] with GenericSeqCompanion[CC] diff --git a/src/library/scala/collection/generic/SortedMapFactory.scala b/src/library/scala/collection/generic/SortedMapFactory.scala index f038c8b09b..2781cbcc15 100644 --- a/src/library/scala/collection/generic/SortedMapFactory.scala +++ b/src/library/scala/collection/generic/SortedMapFactory.scala @@ -12,7 +12,7 @@ package scala.collection package generic import mutable.{Builder, MapBuilder} -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of mutable.Map and subclasses thereof. * diff --git a/src/library/scala/collection/generic/SortedSetFactory.scala b/src/library/scala/collection/generic/SortedSetFactory.scala index bb261803a9..4abccd3827 100644 --- a/src/library/scala/collection/generic/SortedSetFactory.scala +++ b/src/library/scala/collection/generic/SortedSetFactory.scala @@ -12,7 +12,7 @@ package scala.collection package generic import mutable.{Builder, SetBuilder} -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of Set and subclasses thereof. * diff --git a/src/library/scala/collection/generic/TraversableFactory.scala b/src/library/scala/collection/generic/TraversableFactory.scala index 254a6a224f..a09b92a75b 100644 --- a/src/library/scala/collection/generic/TraversableFactory.scala +++ b/src/library/scala/collection/generic/TraversableFactory.scala @@ -10,7 +10,7 @@ package scala.collection package generic -import language.higherKinds +import scala.language.higherKinds /** A template for companion objects of `Traversable` and subclasses thereof. * This class provides a set of operations to create `$Coll` objects. diff --git a/src/library/scala/collection/generic/TraversableForwarder.scala b/src/library/scala/collection/generic/TraversableForwarder.scala index 5c55c27983..62c1dc095b 100644 --- a/src/library/scala/collection/generic/TraversableForwarder.scala +++ b/src/library/scala/collection/generic/TraversableForwarder.scala @@ -11,7 +11,7 @@ package scala.collection.generic import scala.collection._ import mutable.{ Buffer, StringBuilder } import immutable.{ List, Stream } -import reflect.ClassTag +import scala.reflect.ClassTag /** This trait implements a forwarder for traversable objects. It forwards * all calls to a different traversable, except for: diff --git a/src/library/scala/collection/generic/package.scala b/src/library/scala/collection/generic/package.scala index 6eecb5e3ff..dd47b7ace6 100644 --- a/src/library/scala/collection/generic/package.scala +++ b/src/library/scala/collection/generic/package.scala @@ -1,7 +1,7 @@ package scala.collection import generic.CanBuildFrom -import language.higherKinds +import scala.language.higherKinds package object generic { type CanBuild[-Elem, +To] = CanBuildFrom[Nothing, Elem, To] diff --git a/src/library/scala/collection/immutable/HashMap.scala b/src/library/scala/collection/immutable/HashMap.scala index b41327ed95..01372aa618 100644 --- a/src/library/scala/collection/immutable/HashMap.scala +++ b/src/library/scala/collection/immutable/HashMap.scala @@ -10,7 +10,7 @@ package scala.collection package immutable import generic._ -import annotation.unchecked.{ uncheckedVariance=> uV } +import scala.annotation.unchecked.{ uncheckedVariance=> uV } import parallel.immutable.ParHashMap /** This class implements immutable maps using a hash trie. @@ -72,7 +72,7 @@ class HashMap[A, +B] extends AbstractMap[A, B] } private[collection] def computeHash(key: A) = improve(elemHashCode(key)) - + import HashMap.{Merger, MergeFunction, liftMerger} private[collection] def get0(key: A, hash: Int, level: Int): Option[B] = None @@ -88,22 +88,22 @@ class HashMap[A, +B] extends AbstractMap[A, B] @deprecated("Use the `merged` method instead.", "2.10.0") def merge[B1 >: B](that: HashMap[A, B1], mergef: MergeFunction[A, B1] = null): HashMap[A, B1] = merge0(that, 0, liftMerger(mergef)) - + /** Creates a new map which is the merge of this and the argument hash map. - * + * * Uses the specified collision resolution function if two keys are the same. * The collision resolution function will always take the first argument from * `this` hash map and the second from `that`. - * + * * The `merged` method is on average more performant than doing a traversal and reconstructing a * new immutable hash map from scratch, or `++`. - * + * * @tparam B1 the value type of the other hash map * @param that the other hash map * @param mergef the merge function or null if the first key-value pair is to be picked */ def merged[B1 >: B](that: HashMap[A, B1])(mergef: MergeFunction[A, B1]): HashMap[A, B1] = merge0(that, 0, liftMerger(mergef)) - + protected def merge0[B1 >: B](that: HashMap[A, B1], level: Int, merger: Merger[A, B1]): HashMap[A, B1] = that override def par = ParHashMap.fromTrie(this) @@ -118,7 +118,7 @@ class HashMap[A, +B] extends AbstractMap[A, B] * @since 2.3 */ object HashMap extends ImmutableMapFactory[HashMap] with BitOperations.Int { - + private abstract class Merger[A, B] { def apply(kv1: (A, B), kv2: (A, B)): (A, B) def invert: Merger[A, B] @@ -139,7 +139,7 @@ object HashMap extends ImmutableMapFactory[HashMap] with BitOperations.Int { def invert: Merger[A1, B1] = self } } - + /** $mapCanBuildFromInfo */ implicit def canBuildFrom[A, B]: CanBuildFrom[Coll, (A, B), HashMap[A, B]] = new MapCanBuildFrom[A, B] def empty[A, B]: HashMap[A, B] = EmptyHashMap.asInstanceOf[HashMap[A, B]] diff --git a/src/library/scala/collection/immutable/HashSet.scala b/src/library/scala/collection/immutable/HashSet.scala index d9ce7a68f7..03af4deaae 100644 --- a/src/library/scala/collection/immutable/HashSet.scala +++ b/src/library/scala/collection/immutable/HashSet.scala @@ -11,9 +11,9 @@ package scala.collection package immutable -import annotation.unchecked.{ uncheckedVariance => uV } +import scala.annotation.unchecked.{ uncheckedVariance => uV } import generic._ -import collection.parallel.immutable.ParHashSet +import scala.collection.parallel.immutable.ParHashSet /** This class implements immutable sets using a hash trie. * diff --git a/src/library/scala/collection/immutable/List.scala b/src/library/scala/collection/immutable/List.scala index 5e32dd86c9..d3402e16a2 100644 --- a/src/library/scala/collection/immutable/List.scala +++ b/src/library/scala/collection/immutable/List.scala @@ -13,7 +13,7 @@ package immutable import generic._ import mutable.{Builder, ListBuffer} -import annotation.tailrec +import scala.annotation.tailrec import java.io._ /** A class for immutable linked lists representing ordered collections @@ -331,7 +331,7 @@ case object Nil extends List[Nothing] { throw new UnsupportedOperationException("tail of empty list") // Removal of equals method here might lead to an infinite recursion similar to IntMap.equals. override def equals(that: Any) = that match { - case that1: collection.GenSeq[_] => that1.isEmpty + case that1: scala.collection.GenSeq[_] => that1.isEmpty case _ => false } } diff --git a/src/library/scala/collection/immutable/ListMap.scala b/src/library/scala/collection/immutable/ListMap.scala index c21032603f..13282101b3 100644 --- a/src/library/scala/collection/immutable/ListMap.scala +++ b/src/library/scala/collection/immutable/ListMap.scala @@ -12,7 +12,7 @@ package scala.collection package immutable import generic._ -import annotation.{tailrec, bridge} +import scala.annotation.{tailrec, bridge} /** $factoryInfo * @since 1 diff --git a/src/library/scala/collection/immutable/ListSet.scala b/src/library/scala/collection/immutable/ListSet.scala index 4dd0d62fc0..6dcdee8938 100644 --- a/src/library/scala/collection/immutable/ListSet.scala +++ b/src/library/scala/collection/immutable/ListSet.scala @@ -10,7 +10,7 @@ package scala.collection package immutable import generic._ -import annotation.{tailrec, bridge} +import scala.annotation.{tailrec, bridge} import mutable.{ ListBuffer, Builder } /** $factoryInfo diff --git a/src/library/scala/collection/immutable/Map.scala b/src/library/scala/collection/immutable/Map.scala index e73da01ac4..17951e73fd 100644 --- a/src/library/scala/collection/immutable/Map.scala +++ b/src/library/scala/collection/immutable/Map.scala @@ -76,7 +76,7 @@ object Map extends ImmutableMapFactory[Map] { def empty[A, B]: Map[A, B] = EmptyMap.asInstanceOf[Map[A, B]] - class WithDefault[A, +B](underlying: Map[A, B], d: A => B) extends collection.Map.WithDefault[A, B](underlying, d) with Map[A, B] { + class WithDefault[A, +B](underlying: Map[A, B], d: A => B) extends scala.collection.Map.WithDefault[A, B](underlying, d) with Map[A, B] { override def empty = new WithDefault(underlying.empty, d) override def updated[B1 >: B](key: A, value: B1): WithDefault[A, B1] = new WithDefault[A, B1](underlying.updated[B1](key, value), d) override def + [B1 >: B](kv: (A, B1)): WithDefault[A, B1] = updated(kv._1, kv._2) diff --git a/src/library/scala/collection/immutable/PagedSeq.scala b/src/library/scala/collection/immutable/PagedSeq.scala index 7d373b7b39..8975b440d2 100644 --- a/src/library/scala/collection/immutable/PagedSeq.scala +++ b/src/library/scala/collection/immutable/PagedSeq.scala @@ -13,7 +13,7 @@ package immutable import java.io._ import scala.util.matching.Regex -import reflect.ClassTag +import scala.reflect.ClassTag /** The `PagedSeq` object defines a lazy implementations of * a random access sequence. diff --git a/src/library/scala/collection/immutable/Queue.scala b/src/library/scala/collection/immutable/Queue.scala index e980dda847..8d82f4932f 100644 --- a/src/library/scala/collection/immutable/Queue.scala +++ b/src/library/scala/collection/immutable/Queue.scala @@ -11,7 +11,7 @@ package immutable import generic._ import mutable.{ Builder, ListBuffer } -import annotation.tailrec +import scala.annotation.tailrec /** `Queue` objects implement data structures that allow to * insert and retrieve elements in a first-in-first-out (FIFO) manner. diff --git a/src/library/scala/collection/immutable/Range.scala b/src/library/scala/collection/immutable/Range.scala index 7607837491..a2875ec3fb 100644 --- a/src/library/scala/collection/immutable/Range.scala +++ b/src/library/scala/collection/immutable/Range.scala @@ -43,9 +43,9 @@ import scala.collection.parallel.immutable.ParRange */ @SerialVersionUID(7618862778670199309L) class Range(val start: Int, val end: Int, val step: Int) -extends collection.AbstractSeq[Int] +extends scala.collection.AbstractSeq[Int] with IndexedSeq[Int] - with collection.CustomParallelizable[Int, ParRange] + with scala.collection.CustomParallelizable[Int, ParRange] with Serializable { override def par = new ParRange(this) @@ -78,19 +78,19 @@ extends collection.AbstractSeq[Int] final val terminalElement = start + numRangeElements * step override def last = if (isEmpty) Nil.last else lastElement - + override def min[A1 >: Int](implicit ord: Ordering[A1]): Int = if (ord eq Ordering.Int) { if (step > 0) start else last } else super.min(ord) - - override def max[A1 >: Int](implicit ord: Ordering[A1]): Int = + + override def max[A1 >: Int](implicit ord: Ordering[A1]): Int = if (ord eq Ordering.Int) { if (step > 0) last else start } else super.max(ord) - + protected def copy(start: Int, end: Int, step: Int): Range = new Range(start, end, step) /** Create a new range with the `start` and `end` values of this range and diff --git a/src/library/scala/collection/immutable/RedBlackTree.scala b/src/library/scala/collection/immutable/RedBlackTree.scala index 4b573511d1..9eeebb641e 100644 --- a/src/library/scala/collection/immutable/RedBlackTree.scala +++ b/src/library/scala/collection/immutable/RedBlackTree.scala @@ -11,8 +11,8 @@ package scala.collection package immutable -import annotation.tailrec -import annotation.meta.getter +import scala.annotation.tailrec +import scala.annotation.meta.getter /** An object containing the RedBlack tree implementation used by for `TreeMaps` and `TreeSets`. * diff --git a/src/library/scala/collection/immutable/SortedMap.scala b/src/library/scala/collection/immutable/SortedMap.scala index f147b673f7..c0a1e0fec9 100644 --- a/src/library/scala/collection/immutable/SortedMap.scala +++ b/src/library/scala/collection/immutable/SortedMap.scala @@ -13,7 +13,7 @@ package immutable import generic._ import mutable.Builder -import annotation.unchecked.uncheckedVariance +import scala.annotation.unchecked.uncheckedVariance /** A map whose keys are sorted. * @@ -78,17 +78,17 @@ self => */ override def ++[B1 >: B](xs: GenTraversableOnce[(A, B1)]): SortedMap[A, B1] = ((repr: SortedMap[A, B1]) /: xs.seq) (_ + _) - + override def filterKeys(p: A => Boolean): SortedMap[A, B] = new FilteredKeys(p) with SortedMap.Default[A, B] { implicit def ordering: Ordering[A] = self.ordering override def rangeImpl(from : Option[A], until : Option[A]): SortedMap[A, B] = self.rangeImpl(from, until).filterKeys(p) } - + override def mapValues[C](f: B => C): SortedMap[A, C] = new MappedValues(f) with SortedMap.Default[A, C] { implicit def ordering: Ordering[A] = self.ordering override def rangeImpl(from : Option[A], until : Option[A]): SortedMap[A, C] = self.rangeImpl(from, until).mapValues(f) } - + } /** $factoryInfo @@ -99,8 +99,8 @@ object SortedMap extends ImmutableSortedMapFactory[SortedMap] { /** $sortedMapCanBuildFromInfo */ implicit def canBuildFrom[A, B](implicit ord: Ordering[A]): CanBuildFrom[Coll, (A, B), SortedMap[A, B]] = new SortedMapCanBuildFrom[A, B] def empty[A, B](implicit ord: Ordering[A]): SortedMap[A, B] = TreeMap.empty[A, B] - - private[collection] trait Default[A, +B] extends SortedMap[A, B] with collection.SortedMap.Default[A, B] { + + private[collection] trait Default[A, +B] extends SortedMap[A, B] with scala.collection.SortedMap.Default[A, B] { self => override def +[B1 >: B](kv: (A, B1)): SortedMap[A, B1] = { val b = SortedMap.newBuilder[A, B1] @@ -108,7 +108,7 @@ object SortedMap extends ImmutableSortedMapFactory[SortedMap] { b += ((kv._1, kv._2)) b.result } - + override def - (key: A): SortedMap[A, B] = { val b = newBuilder for (kv <- this; if kv._1 != key) b += kv diff --git a/src/library/scala/collection/immutable/Stream.scala b/src/library/scala/collection/immutable/Stream.scala index 97707d4f7c..bac90341ec 100644 --- a/src/library/scala/collection/immutable/Stream.scala +++ b/src/library/scala/collection/immutable/Stream.scala @@ -13,7 +13,7 @@ import generic._ import mutable.{Builder, StringBuilder, LazyBuilder, ListBuffer} import scala.annotation.tailrec import Stream.cons -import language.implicitConversions +import scala.language.implicitConversions /** The class `Stream` implements lazy lists where elements * are only evaluated when they are needed. Here is an example: @@ -631,7 +631,7 @@ self => * // (5,6) * }}} */ - override final def zip[A1 >: A, B, That](that: collection.GenIterable[B])(implicit bf: CanBuildFrom[Stream[A], (A1, B), That]): That = + override final def zip[A1 >: A, B, That](that: scala.collection.GenIterable[B])(implicit bf: CanBuildFrom[Stream[A], (A1, B), That]): That = // we assume there is no other builder factory on streams and therefore know that That = Stream[(A1, B)] if (isStreamBuilder(bf)) asThat( if (this.isEmpty || that.isEmpty) Stream.Empty diff --git a/src/library/scala/collection/immutable/StreamViewLike.scala b/src/library/scala/collection/immutable/StreamViewLike.scala index 3fd92aaff9..bb378bc337 100644 --- a/src/library/scala/collection/immutable/StreamViewLike.scala +++ b/src/library/scala/collection/immutable/StreamViewLike.scala @@ -51,19 +51,19 @@ extends SeqView[A, Coll] /** boilerplate */ protected override def newForced[B](xs: => collection.GenSeq[B]): Transformed[B] = new { val forced = xs } with AbstractTransformed[B] with Forced[B] - protected override def newAppended[B >: A](that: collection.GenTraversable[B]): Transformed[B] = new { val rest = that } with AbstractTransformed[B] with Appended[B] + protected override def newAppended[B >: A](that: scala.collection.GenTraversable[B]): Transformed[B] = new { val rest = that } with AbstractTransformed[B] with Appended[B] protected override def newMapped[B](f: A => B): Transformed[B] = new { val mapping = f } with AbstractTransformed[B] with Mapped[B] protected override def newFlatMapped[B](f: A => collection.GenTraversableOnce[B]): Transformed[B] = new { val mapping = f } with AbstractTransformed[B] with FlatMapped[B] protected override def newFiltered(p: A => Boolean): Transformed[A] = new { val pred = p } with AbstractTransformed[A] with Filtered protected override def newSliced(_endpoints: SliceInterval): Transformed[A] = new { val endpoints = _endpoints } with AbstractTransformed[A] with Sliced protected override def newDroppedWhile(p: A => Boolean): Transformed[A] = new { val pred = p } with AbstractTransformed[A] with DroppedWhile protected override def newTakenWhile(p: A => Boolean): Transformed[A] = new { val pred = p } with AbstractTransformed[A] with TakenWhile - protected override def newZipped[B](that: collection.GenIterable[B]): Transformed[(A, B)] = new { val other = that } with AbstractTransformed[(A, B)] with Zipped[B] - protected override def newZippedAll[A1 >: A, B](that: collection.GenIterable[B], _thisElem: A1, _thatElem: B): Transformed[(A1, B)] = { + protected override def newZipped[B](that: scala.collection.GenIterable[B]): Transformed[(A, B)] = new { val other = that } with AbstractTransformed[(A, B)] with Zipped[B] + protected override def newZippedAll[A1 >: A, B](that: scala.collection.GenIterable[B], _thisElem: A1, _thatElem: B): Transformed[(A1, B)] = { new { val other = that; val thisElem = _thisElem; val thatElem = _thatElem } with AbstractTransformed[(A1, B)] with ZippedAll[A1, B] } protected override def newReversed: Transformed[A] = new Reversed { } - protected override def newPatched[B >: A](_from: Int, _patch: collection.GenSeq[B], _replaced: Int): Transformed[B] = { + protected override def newPatched[B >: A](_from: Int, _patch: scala.collection.GenSeq[B], _replaced: Int): Transformed[B] = { new { val from = _from; val patch = _patch; val replaced = _replaced } with AbstractTransformed[B] with Patched[B] } protected override def newPrepended[B >: A](elem: B): Transformed[B] = new { protected[this] val fst = elem } with AbstractTransformed[B] with Prepended[B] diff --git a/src/library/scala/collection/immutable/StringLike.scala b/src/library/scala/collection/immutable/StringLike.scala index af7662d2e0..4d28bf9518 100644 --- a/src/library/scala/collection/immutable/StringLike.scala +++ b/src/library/scala/collection/immutable/StringLike.scala @@ -13,7 +13,7 @@ import generic._ import mutable.Builder import scala.util.matching.Regex import scala.math.ScalaNumber -import reflect.ClassTag +import scala.reflect.ClassTag /** A companion object for the `StringLike` containing some constants. * @since 2.8 @@ -41,7 +41,7 @@ import StringLike._ * @define mayNotTerminateInf * @define willNotTerminateInf */ -trait StringLike[+Repr] extends Any with collection.IndexedSeqOptimized[Char, Repr] with Ordered[String] { +trait StringLike[+Repr] extends Any with scala.collection.IndexedSeqOptimized[Char, Repr] with Ordered[String] { self => /** Creates a string builder buffer as builder for this class */ diff --git a/src/library/scala/collection/immutable/TrieIterator.scala b/src/library/scala/collection/immutable/TrieIterator.scala index ead1a8c744..e8e904f1f9 100644 --- a/src/library/scala/collection/immutable/TrieIterator.scala +++ b/src/library/scala/collection/immutable/TrieIterator.scala @@ -11,7 +11,7 @@ package immutable import HashMap.{ HashTrieMap, HashMapCollision1, HashMap1 } import HashSet.{ HashTrieSet, HashSetCollision1, HashSet1 } -import annotation.unchecked.{ uncheckedVariance => uV } +import scala.annotation.unchecked.{ uncheckedVariance => uV } import scala.annotation.tailrec /** Abandons any pretense of type safety for speed. You can't say I diff --git a/src/library/scala/collection/immutable/Vector.scala b/src/library/scala/collection/immutable/Vector.scala index dc65253a55..49537df50d 100644 --- a/src/library/scala/collection/immutable/Vector.scala +++ b/src/library/scala/collection/immutable/Vector.scala @@ -10,7 +10,7 @@ package scala.collection package immutable import scala.annotation.unchecked.uncheckedVariance -import compat.Platform +import scala.compat.Platform import scala.collection.generic._ import scala.collection.mutable.Builder import scala.collection.parallel.immutable.ParVector diff --git a/src/library/scala/collection/mutable/ArrayBuffer.scala b/src/library/scala/collection/mutable/ArrayBuffer.scala index 3034fc2bce..90b7ca03de 100644 --- a/src/library/scala/collection/mutable/ArrayBuffer.scala +++ b/src/library/scala/collection/mutable/ArrayBuffer.scala @@ -66,7 +66,7 @@ class ArrayBuffer[A](override protected val initialSize: Int) override def sizeHint(len: Int) { if (len > size && len >= 1) { val newarray = new Array[AnyRef](len) - compat.Platform.arraycopy(array, 0, newarray, 0, size0) + scala.compat.Platform.arraycopy(array, 0, newarray, 0, size0) array = newarray } } @@ -93,7 +93,7 @@ class ArrayBuffer[A](override protected val initialSize: Int) * @return the updated buffer. */ override def ++=(xs: TraversableOnce[A]): this.type = xs match { - case v: collection.IndexedSeqLike[_, _] => + case v: scala.collection.IndexedSeqLike[_, _] => val n = v.length ensureSize(size0 + n) v.copyToArray(array.asInstanceOf[scala.Array[Any]], size0, n) @@ -169,12 +169,6 @@ class ArrayBuffer[A](override protected val initialSize: Int) result } - /** Return a clone of this buffer. - * - * @return an `ArrayBuffer` with the same elements. - */ - override def clone(): ArrayBuffer[A] = new ArrayBuffer[A] ++= this - def result: ArrayBuffer[A] = this /** Defines the prefix of the string representation. diff --git a/src/library/scala/collection/mutable/ArrayOps.scala b/src/library/scala/collection/mutable/ArrayOps.scala index b3cd6a95c5..c87feaddc5 100644 --- a/src/library/scala/collection/mutable/ArrayOps.scala +++ b/src/library/scala/collection/mutable/ArrayOps.scala @@ -9,7 +9,7 @@ package scala.collection package mutable -import compat.Platform.arraycopy +import scala.compat.Platform.arraycopy import scala.reflect.ClassTag import scala.runtime.ScalaRunTime._ import parallel.mutable.ParArray @@ -62,7 +62,7 @@ trait ArrayOps[T] extends Any with ArrayLike[T, Array[T]] with CustomParalleliza */ def flatten[U](implicit asTrav: T => collection.Traversable[U], m: ClassTag[U]): Array[U] = { val b = Array.newBuilder[U] - b.sizeHint(map{case is: collection.IndexedSeq[_] => is.size case _ => 0}.sum) + b.sizeHint(map{case is: scala.collection.IndexedSeq[_] => is.size case _ => 0}.sum) for (xs <- this) b ++= asTrav(xs) b.result diff --git a/src/library/scala/collection/mutable/ArraySeq.scala b/src/library/scala/collection/mutable/ArraySeq.scala index d0eaee348b..60baf7b35b 100644 --- a/src/library/scala/collection/mutable/ArraySeq.scala +++ b/src/library/scala/collection/mutable/ArraySeq.scala @@ -89,6 +89,13 @@ extends AbstractSeq[A] Array.copy(array, 0, xs, start, len1) } + override def clone(): ArraySeq[A] = { + val cloned = array.clone.asInstanceOf[Array[AnyRef]] + new ArraySeq[A](length) { + override val array = cloned + } + } + } /** $factoryInfo diff --git a/src/library/scala/collection/mutable/ArrayStack.scala b/src/library/scala/collection/mutable/ArrayStack.scala index 8f834d265b..e408d74353 100644 --- a/src/library/scala/collection/mutable/ArrayStack.scala +++ b/src/library/scala/collection/mutable/ArrayStack.scala @@ -10,7 +10,7 @@ package scala.collection package mutable import generic._ -import reflect.ClassTag +import scala.reflect.ClassTag /** Factory object for the `ArrayStack` class. * diff --git a/src/library/scala/collection/mutable/BufferLike.scala b/src/library/scala/collection/mutable/BufferLike.scala index 3274fe6194..91983ba0d2 100644 --- a/src/library/scala/collection/mutable/BufferLike.scala +++ b/src/library/scala/collection/mutable/BufferLike.scala @@ -13,7 +13,7 @@ package mutable import generic._ import script._ -import annotation.{migration, bridge} +import scala.annotation.{migration, bridge} /** A template trait for buffers of type `Buffer[A]`. * @@ -93,7 +93,7 @@ trait BufferLike[A, +This <: BufferLike[A, This] with Buffer[A]] * @throws IndexOutOfBoundsException if the index `n` is not in the valid range * `0 <= n <= length`. */ - def insertAll(n: Int, elems: collection.Traversable[A]) + def insertAll(n: Int, elems: scala.collection.Traversable[A]) /** Removes the element at a given index from this buffer. * @@ -252,4 +252,14 @@ trait BufferLike[A, +This <: BufferLike[A, This] with Buffer[A]] */ @migration("`--` creates a new buffer. Use `--=` to remove an element from this buffer and return that buffer itself.", "2.8.0") override def --(xs: GenTraversableOnce[A]): This = clone() --= xs.seq + + /** Return a clone of this buffer. + * + * @return a `Buffer` with the same elements. + */ + override def clone(): This = { + val bf = newBuilder + bf ++= this + bf.result.asInstanceOf[This] + } } diff --git a/src/library/scala/collection/mutable/Cloneable.scala b/src/library/scala/collection/mutable/Cloneable.scala index 6daac3094a..a3c1b7213b 100644 --- a/src/library/scala/collection/mutable/Cloneable.scala +++ b/src/library/scala/collection/mutable/Cloneable.scala @@ -18,5 +18,5 @@ package mutable * @tparam A Type of the elements contained in the collection, covariant and with reference types as upperbound. */ trait Cloneable[+A <: AnyRef] extends scala.Cloneable { - override def clone: A = super.clone().asInstanceOf[A] + override def clone(): A = super.clone().asInstanceOf[A] } diff --git a/src/library/scala/collection/mutable/DoubleLinkedListLike.scala b/src/library/scala/collection/mutable/DoubleLinkedListLike.scala index ebccacf976..feff48cca3 100644 --- a/src/library/scala/collection/mutable/DoubleLinkedListLike.scala +++ b/src/library/scala/collection/mutable/DoubleLinkedListLike.scala @@ -11,7 +11,7 @@ package scala.collection package mutable -import annotation.migration +import scala.annotation.migration /** This extensible class may be used as a basis for implementing double * linked lists. Type variable `A` refers to the element type diff --git a/src/library/scala/collection/mutable/HashMap.scala b/src/library/scala/collection/mutable/HashMap.scala index bf640cdb90..da486f4042 100644 --- a/src/library/scala/collection/mutable/HashMap.scala +++ b/src/library/scala/collection/mutable/HashMap.scala @@ -98,12 +98,12 @@ extends AbstractMap[A, B] override def foreach[C](f: ((A, B)) => C): Unit = foreachEntry(e => f(e.key, e.value)) /* Override to avoid tuple allocation in foreach */ - override def keySet: collection.Set[A] = new DefaultKeySet { + override def keySet: scala.collection.Set[A] = new DefaultKeySet { override def foreach[C](f: A => C) = foreachEntry(e => f(e.key)) } /* Override to avoid tuple allocation in foreach */ - override def values: collection.Iterable[B] = new DefaultValuesIterable { + override def values: scala.collection.Iterable[B] = new DefaultValuesIterable { override def foreach[C](f: B => C) = foreachEntry(e => f(e.value)) } diff --git a/src/library/scala/collection/mutable/HashSet.scala b/src/library/scala/collection/mutable/HashSet.scala index e040d1e421..b263b46d36 100644 --- a/src/library/scala/collection/mutable/HashSet.scala +++ b/src/library/scala/collection/mutable/HashSet.scala @@ -12,7 +12,7 @@ package scala.collection package mutable import generic._ -import collection.parallel.mutable.ParHashSet +import scala.collection.parallel.mutable.ParHashSet /** This class implements mutable sets using a hashtable. * diff --git a/src/library/scala/collection/mutable/HashTable.scala b/src/library/scala/collection/mutable/HashTable.scala index 97e794f06e..67e7348672 100644 --- a/src/library/scala/collection/mutable/HashTable.scala +++ b/src/library/scala/collection/mutable/HashTable.scala @@ -452,7 +452,7 @@ private[collection] object HashTable { val seedvalue: Int, val sizemap: Array[Int] ) { - import collection.DebugUtils._ + import scala.collection.DebugUtils._ private[collection] def debugInformation = buildString { append => append("Hash table contents") diff --git a/src/library/scala/collection/mutable/ImmutableMapAdaptor.scala b/src/library/scala/collection/mutable/ImmutableMapAdaptor.scala index 3232179dbb..1a3b7119a9 100644 --- a/src/library/scala/collection/mutable/ImmutableMapAdaptor.scala +++ b/src/library/scala/collection/mutable/ImmutableMapAdaptor.scala @@ -11,7 +11,7 @@ package scala.collection package mutable -import annotation.migration +import scala.annotation.migration /** This class can be used as an adaptor to create mutable maps from * immutable map implementations. Only method `empty` has @@ -42,17 +42,17 @@ extends AbstractMap[A, B] override def isDefinedAt(key: A) = imap.isDefinedAt(key) - override def keySet: collection.Set[A] = imap.keySet + override def keySet: scala.collection.Set[A] = imap.keySet override def keysIterator: Iterator[A] = imap.keysIterator @migration("`keys` returns Iterable[A] rather than Iterator[A].", "2.8.0") - override def keys: collection.Iterable[A] = imap.keys + override def keys: scala.collection.Iterable[A] = imap.keys override def valuesIterator: Iterator[B] = imap.valuesIterator @migration("`values` returns Iterable[B] rather than Iterator[B].", "2.8.0") - override def values: collection.Iterable[B] = imap.values + override def values: scala.collection.Iterable[B] = imap.values def iterator: Iterator[(A, B)] = imap.iterator diff --git a/src/library/scala/collection/mutable/IndexedSeqView.scala b/src/library/scala/collection/mutable/IndexedSeqView.scala index a0de2ec8ad..ab3d0ec312 100644 --- a/src/library/scala/collection/mutable/IndexedSeqView.scala +++ b/src/library/scala/collection/mutable/IndexedSeqView.scala @@ -14,7 +14,7 @@ package mutable import generic._ import TraversableView.NoBuilder -import language.implicitConversions +import scala.language.implicitConversions /** A non-strict view of a mutable `IndexedSeq`. * $viewInfo diff --git a/src/library/scala/collection/mutable/LinkedListLike.scala b/src/library/scala/collection/mutable/LinkedListLike.scala index 07a8501ca4..307836907c 100644 --- a/src/library/scala/collection/mutable/LinkedListLike.scala +++ b/src/library/scala/collection/mutable/LinkedListLike.scala @@ -12,7 +12,7 @@ package scala.collection package mutable import generic._ -import annotation.tailrec +import scala.annotation.tailrec /** This extensible class may be used as a basis for implementing linked * list. Type variable `A` refers to the element type of the @@ -180,4 +180,14 @@ trait LinkedListLike[A, This <: Seq[A] with LinkedListLike[A, This]] extends Seq these = these.next } } + + /** Return a clone of this list. + * + * @return a `LinkedList` with the same elements. + */ + override def clone(): This = { + val bf = newBuilder + bf ++= this + bf.result + } } diff --git a/src/library/scala/collection/mutable/Map.scala b/src/library/scala/collection/mutable/Map.scala index 207b3f3324..8ae3f20cc8 100644 --- a/src/library/scala/collection/mutable/Map.scala +++ b/src/library/scala/collection/mutable/Map.scala @@ -71,7 +71,7 @@ object Map extends MutableMapFactory[Map] { def empty[A, B]: Map[A, B] = new HashMap[A, B] - class WithDefault[A, B](underlying: Map[A, B], d: A => B) extends collection.Map.WithDefault(underlying, d) with Map[A, B] { + class WithDefault[A, B](underlying: Map[A, B], d: A => B) extends scala.collection.Map.WithDefault(underlying, d) with Map[A, B] { override def += (kv: (A, B)) = {underlying += kv; this} def -= (key: A) = {underlying -= key; this} override def empty = new WithDefault(underlying.empty, d) diff --git a/src/library/scala/collection/mutable/MapLike.scala b/src/library/scala/collection/mutable/MapLike.scala index 3046207533..56be5adcca 100644 --- a/src/library/scala/collection/mutable/MapLike.scala +++ b/src/library/scala/collection/mutable/MapLike.scala @@ -11,7 +11,7 @@ package scala.collection package mutable import generic._ -import annotation.{migration, bridge} +import scala.annotation.{migration, bridge} import parallel.mutable.ParMap /** A template trait for mutable maps. diff --git a/src/library/scala/collection/mutable/MutableList.scala b/src/library/scala/collection/mutable/MutableList.scala index c9e44ac165..6fa1f4872a 100644 --- a/src/library/scala/collection/mutable/MutableList.scala +++ b/src/library/scala/collection/mutable/MutableList.scala @@ -140,6 +140,13 @@ extends AbstractSeq[A] } def result = this + + override def clone(): MutableList[A] = { + val bf = newBuilder + bf ++= seq + bf.result + } + } diff --git a/src/library/scala/collection/mutable/ObservableBuffer.scala b/src/library/scala/collection/mutable/ObservableBuffer.scala index 6b5079e402..aaf26327b2 100644 --- a/src/library/scala/collection/mutable/ObservableBuffer.scala +++ b/src/library/scala/collection/mutable/ObservableBuffer.scala @@ -70,8 +70,8 @@ trait ObservableBuffer[A] extends Buffer[A] with Publisher[Message[A] with Undoa def undo() { throw new UnsupportedOperationException("cannot undo") } }) } - - abstract override def insertAll(n: Int, elems: collection.Traversable[A]) { + + abstract override def insertAll(n: Int, elems: scala.collection.Traversable[A]) { super.insertAll(n, elems) var curr = n - 1 val msg = elems.foldLeft(new Script[A]() with Undoable { @@ -83,5 +83,5 @@ trait ObservableBuffer[A] extends Buffer[A] with Publisher[Message[A] with Undoa } publish(msg) } - + } diff --git a/src/library/scala/collection/mutable/OpenHashMap.scala b/src/library/scala/collection/mutable/OpenHashMap.scala index 2634deb819..c33a7a906e 100644 --- a/src/library/scala/collection/mutable/OpenHashMap.scala +++ b/src/library/scala/collection/mutable/OpenHashMap.scala @@ -195,7 +195,7 @@ extends AbstractMap[Key, Value] } } - override def clone = { + override def clone() = { val it = new OpenHashMap[Key, Value] foreachUndeletedEntry(entry => it.put(entry.key, entry.hash, entry.value.get)); it diff --git a/src/library/scala/collection/mutable/Queue.scala b/src/library/scala/collection/mutable/Queue.scala index 21c3a84699..fc7e76125e 100644 --- a/src/library/scala/collection/mutable/Queue.scala +++ b/src/library/scala/collection/mutable/Queue.scala @@ -177,6 +177,12 @@ extends MutableList[A] tl.len = len - 1 tl } + + override def clone(): Queue[A] = { + val bf = newBuilder + bf ++= seq + bf.result + } } diff --git a/src/library/scala/collection/mutable/ResizableArray.scala b/src/library/scala/collection/mutable/ResizableArray.scala index c7d10573c9..54bf93252f 100644 --- a/src/library/scala/collection/mutable/ResizableArray.scala +++ b/src/library/scala/collection/mutable/ResizableArray.scala @@ -96,7 +96,7 @@ trait ResizableArray[A] extends IndexedSeq[A] newsize = newsize * 2 val newar: Array[AnyRef] = new Array(newsize) - compat.Platform.arraycopy(array, 0, newar, 0, size0) + scala.compat.Platform.arraycopy(array, 0, newar, 0, size0) array = newar } } @@ -112,7 +112,7 @@ trait ResizableArray[A] extends IndexedSeq[A] /** Move parts of the array. */ protected def copy(m: Int, n: Int, len: Int) { - compat.Platform.arraycopy(array, m, array, n, len) + scala.compat.Platform.arraycopy(array, m, array, n, len) } } diff --git a/src/library/scala/collection/mutable/SetBuilder.scala b/src/library/scala/collection/mutable/SetBuilder.scala index 582ca898c7..0a95a18392 100644 --- a/src/library/scala/collection/mutable/SetBuilder.scala +++ b/src/library/scala/collection/mutable/SetBuilder.scala @@ -19,7 +19,7 @@ import generic._ * @param empty The empty element of the collection. * @since 2.8 */ -class SetBuilder[A, Coll <: collection.Set[A] with collection.SetLike[A, Coll]](empty: Coll) extends Builder[A, Coll] { +class SetBuilder[A, Coll <: scala.collection.Set[A] with scala.collection.SetLike[A, Coll]](empty: Coll) extends Builder[A, Coll] { protected var elems: Coll = empty def +=(x: A): this.type = { elems = elems + x; this } def clear() { elems = empty } diff --git a/src/library/scala/collection/mutable/SetLike.scala b/src/library/scala/collection/mutable/SetLike.scala index 37313c8ca3..38342d4454 100644 --- a/src/library/scala/collection/mutable/SetLike.scala +++ b/src/library/scala/collection/mutable/SetLike.scala @@ -11,7 +11,7 @@ package mutable import generic._ import script._ -import annotation.{ migration, bridge } +import scala.annotation.{ migration, bridge } import parallel.mutable.ParSet /** A template trait for mutable sets of type `mutable.Set[A]`. diff --git a/src/library/scala/collection/mutable/SortedSet.scala b/src/library/scala/collection/mutable/SortedSet.scala index 78d12f3d64..809f584f4d 100644 --- a/src/library/scala/collection/mutable/SortedSet.scala +++ b/src/library/scala/collection/mutable/SortedSet.scala @@ -20,7 +20,7 @@ import generic._ * @author Lucien Pereira * */ -trait SortedSet[A] extends collection.SortedSet[A] with collection.SortedSetLike[A,SortedSet[A]] +trait SortedSet[A] extends scala.collection.SortedSet[A] with scala.collection.SortedSetLike[A,SortedSet[A]] with mutable.Set[A] with mutable.SetLike[A, SortedSet[A]] { /** Needs to be overridden in subclasses. */ diff --git a/src/library/scala/collection/mutable/Stack.scala b/src/library/scala/collection/mutable/Stack.scala index db9e48d1cf..1ba531ac82 100644 --- a/src/library/scala/collection/mutable/Stack.scala +++ b/src/library/scala/collection/mutable/Stack.scala @@ -12,9 +12,9 @@ package scala.collection package mutable import generic._ -import collection.immutable.{List, Nil} -import collection.Iterator -import annotation.migration +import scala.collection.immutable.{List, Nil} +import scala.collection.Iterator +import scala.annotation.migration /** Factory object for the `mutable.Stack` class. * diff --git a/src/library/scala/collection/mutable/StringBuilder.scala b/src/library/scala/collection/mutable/StringBuilder.scala index 08c881dbb8..92506548e9 100644 --- a/src/library/scala/collection/mutable/StringBuilder.scala +++ b/src/library/scala/collection/mutable/StringBuilder.scala @@ -10,7 +10,7 @@ package scala.collection package mutable import java.lang.{ StringBuilder => JavaStringBuilder } -import annotation.migration +import scala.annotation.migration import immutable.StringLike /** A builder for mutable sequence of characters. This class provides an API diff --git a/src/library/scala/collection/mutable/SynchronizedMap.scala b/src/library/scala/collection/mutable/SynchronizedMap.scala index 037b8ec5f5..6b3264a66d 100644 --- a/src/library/scala/collection/mutable/SynchronizedMap.scala +++ b/src/library/scala/collection/mutable/SynchronizedMap.scala @@ -11,7 +11,7 @@ package scala.collection package mutable -import annotation.migration +import scala.annotation.migration /** This class should be used as a mixin. It synchronizes the `Map` * functions of the class into which it is mixed in. @@ -41,14 +41,14 @@ trait SynchronizedMap[A, B] extends Map[A, B] { override def transform(f: (A, B) => B): this.type = synchronized[this.type] { super.transform(f) } override def retain(p: (A, B) => Boolean): this.type = synchronized[this.type] { super.retain(p) } @migration("`values` returns `Iterable[B]` rather than `Iterator[B]`.", "2.8.0") - override def values: collection.Iterable[B] = synchronized { super.values } + override def values: scala.collection.Iterable[B] = synchronized { super.values } override def valuesIterator: Iterator[B] = synchronized { super.valuesIterator } override def clone(): Self = synchronized { super.clone() } override def foreach[U](f: ((A, B)) => U) = synchronized { super.foreach(f) } override def apply(key: A): B = synchronized { super.apply(key) } - override def keySet: collection.Set[A] = synchronized { super.keySet } + override def keySet: scala.collection.Set[A] = synchronized { super.keySet } @migration("`keys` returns `Iterable[A]` rather than `Iterator[A]`.", "2.8.0") - override def keys: collection.Iterable[A] = synchronized { super.keys } + override def keys: scala.collection.Iterable[A] = synchronized { super.keys } override def keysIterator: Iterator[A] = synchronized { super.keysIterator } override def isEmpty: Boolean = synchronized { super.isEmpty } override def contains(key: A): Boolean = synchronized {super.contains(key) } diff --git a/src/library/scala/collection/mutable/TreeSet.scala b/src/library/scala/collection/mutable/TreeSet.scala index 00675b9119..53b0c25a8f 100644 --- a/src/library/scala/collection/mutable/TreeSet.scala +++ b/src/library/scala/collection/mutable/TreeSet.scala @@ -103,7 +103,7 @@ class TreeSet[A](implicit val ordering: Ordering[A]) extends SortedSet[A] with S * the clone. So clone complexity in time is O(1). * */ - override def clone: TreeSet[A] = { + override def clone(): TreeSet[A] = { val clone = new TreeSet[A](base, from, until) clone.avl = resolve.avl clone.cardinality = resolve.cardinality diff --git a/src/library/scala/collection/mutable/UnrolledBuffer.scala b/src/library/scala/collection/mutable/UnrolledBuffer.scala index 6785aba10d..1c913c7ce7 100644 --- a/src/library/scala/collection/mutable/UnrolledBuffer.scala +++ b/src/library/scala/collection/mutable/UnrolledBuffer.scala @@ -8,11 +8,11 @@ package scala.collection.mutable -import collection.AbstractIterator -import collection.Iterator -import collection.generic._ -import annotation.tailrec -import reflect.ClassTag +import scala.collection.AbstractIterator +import scala.collection.Iterator +import scala.collection.generic._ +import scala.annotation.tailrec +import scala.reflect.ClassTag /** A buffer that stores elements in an unrolled linked list. * @@ -43,11 +43,11 @@ import reflect.ClassTag */ @SerialVersionUID(1L) class UnrolledBuffer[T](implicit val tag: ClassTag[T]) -extends collection.mutable.AbstractBuffer[T] - with collection.mutable.Buffer[T] - with collection.mutable.BufferLike[T, UnrolledBuffer[T]] +extends scala.collection.mutable.AbstractBuffer[T] + with scala.collection.mutable.Buffer[T] + with scala.collection.mutable.BufferLike[T, UnrolledBuffer[T]] with GenericClassTagTraversableTemplate[T, UnrolledBuffer] - with collection.mutable.Builder[T, UnrolledBuffer[T]] + with scala.collection.mutable.Builder[T, UnrolledBuffer[T]] with Serializable { import UnrolledBuffer.Unrolled @@ -153,7 +153,7 @@ extends collection.mutable.AbstractBuffer[T] this } - def insertAll(idx: Int, elems: collection.Traversable[T]) = + def insertAll(idx: Int, elems: scala.collection.Traversable[T]) = if (idx >= 0 && idx <= sz) { headptr.insertAll(idx, elems, this) sz += elems.size @@ -181,7 +181,7 @@ extends collection.mutable.AbstractBuffer[T] } override def clone(): UnrolledBuffer[T] = new UnrolledBuffer[T] ++= this - + override def stringPrefix = "UnrolledBuffer" } @@ -285,7 +285,7 @@ object UnrolledBuffer extends ClassTagTraversableFactory[UnrolledBuffer] { if (next eq null) true else false // checks if last node was thrown out } else false - @tailrec final def insertAll(idx: Int, t: collection.Traversable[T], buffer: UnrolledBuffer[T]): Unit = if (idx < size) { + @tailrec final def insertAll(idx: Int, t: scala.collection.Traversable[T], buffer: UnrolledBuffer[T]): Unit = if (idx < size) { // divide this node at the appropriate position and insert all into head // update new next val newnextnode = new Unrolled[T](0, new Array(array.length), null, buff) diff --git a/src/library/scala/collection/mutable/WrappedArray.scala b/src/library/scala/collection/mutable/WrappedArray.scala index fec0fbaa3c..4d9b510e57 100644 --- a/src/library/scala/collection/mutable/WrappedArray.scala +++ b/src/library/scala/collection/mutable/WrappedArray.scala @@ -75,7 +75,7 @@ extends AbstractSeq[T] override def stringPrefix = "WrappedArray" /** Clones this object, including the underlying Array. */ - override def clone: WrappedArray[T] = WrappedArray make array.clone() + override def clone(): WrappedArray[T] = WrappedArray make array.clone() /** Creates new builder for this collection ==> move to subclasses */ diff --git a/src/library/scala/collection/parallel/ParIterableLike.scala b/src/library/scala/collection/parallel/ParIterableLike.scala index 388e3f193f..4e0818ff45 100644 --- a/src/library/scala/collection/parallel/ParIterableLike.scala +++ b/src/library/scala/collection/parallel/ParIterableLike.scala @@ -24,13 +24,13 @@ import scala.collection.GenIterable import scala.collection.GenTraversableOnce import scala.collection.GenTraversable import immutable.HashMapCombiner -import reflect.{ClassTag, classTag} +import scala.reflect.{ClassTag, classTag} import java.util.concurrent.atomic.AtomicBoolean -import annotation.unchecked.uncheckedVariance -import annotation.unchecked.uncheckedStable -import language.{ higherKinds, implicitConversions } +import scala.annotation.unchecked.uncheckedVariance +import scala.annotation.unchecked.uncheckedStable +import scala.language.{ higherKinds, implicitConversions } /** A template trait for parallel collections of type `ParIterable[T]`. @@ -263,7 +263,7 @@ self: ParIterableLike[T, Repr, Sequential] => /** The `newBuilder` operation returns a parallel builder assigned to this collection's fork/join pool. * This method forwards the call to `newCombiner`. */ - //protected[this] def newBuilder: collection.mutable.Builder[T, Repr] = newCombiner + //protected[this] def newBuilder: scala.collection.mutable.Builder[T, Repr] = newCombiner /** Optionally reuses an existing combiner for better performance. By default it doesn't - subclasses may override this behaviour. * The provided combiner `oldc` that can potentially be reused will be either some combiner from the previous computational task, or `None` if there @@ -859,7 +859,7 @@ self: ParIterableLike[T, Repr, Sequential] => override def toList: List[T] = seq.toList - override def toIndexedSeq: collection.immutable.IndexedSeq[T] = seq.toIndexedSeq + override def toIndexedSeq: scala.collection.immutable.IndexedSeq[T] = seq.toIndexedSeq override def toStream: Stream[T] = seq.toStream @@ -867,7 +867,7 @@ self: ParIterableLike[T, Repr, Sequential] => // the methods below are overridden - override def toBuffer[U >: T]: collection.mutable.Buffer[U] = seq.toBuffer // have additional, parallel buffers? + override def toBuffer[U >: T]: scala.collection.mutable.Buffer[U] = seq.toBuffer // have additional, parallel buffers? override def toTraversable: GenTraversable[T] = this.asInstanceOf[GenTraversable[T]] @@ -1496,7 +1496,7 @@ self: ParIterableLike[T, Repr, Sequential] => debugBuffer += s } - import collection.DebugUtils._ + import scala.collection.DebugUtils._ private[parallel] def printDebugBuffer() = println(buildString { append => for (s <- debugBuffer) { diff --git a/src/library/scala/collection/parallel/ParIterableViewLike.scala b/src/library/scala/collection/parallel/ParIterableViewLike.scala index 91eefc2aa5..4f6962ff05 100644 --- a/src/library/scala/collection/parallel/ParIterableViewLike.scala +++ b/src/library/scala/collection/parallel/ParIterableViewLike.scala @@ -18,7 +18,7 @@ import scala.collection.GenSeq import scala.collection.generic.{ CanBuildFrom, SliceInterval } import scala.collection.generic.CanCombineFrom import scala.collection.parallel.immutable.ParRange -import language.implicitConversions +import scala.language.implicitConversions diff --git a/src/library/scala/collection/parallel/ParMapLike.scala b/src/library/scala/collection/parallel/ParMapLike.scala index afd1f30903..8bf7334c5f 100644 --- a/src/library/scala/collection/parallel/ParMapLike.scala +++ b/src/library/scala/collection/parallel/ParMapLike.scala @@ -16,7 +16,7 @@ import scala.collection.MapLike import scala.collection.GenMapLike import scala.collection.Map import scala.collection.mutable.Builder -import annotation.unchecked.uncheckedVariance +import scala.annotation.unchecked.uncheckedVariance import scala.collection.generic.IdleSignalling import scala.collection.generic.Signalling diff --git a/src/library/scala/collection/parallel/Tasks.scala b/src/library/scala/collection/parallel/Tasks.scala index 7a0116b3b3..67552e1c89 100644 --- a/src/library/scala/collection/parallel/Tasks.scala +++ b/src/library/scala/collection/parallel/Tasks.scala @@ -16,7 +16,7 @@ import scala.concurrent.forkjoin._ import scala.concurrent.ExecutionContext import scala.util.control.Breaks._ -import annotation.unchecked.uncheckedVariance +import scala.annotation.unchecked.uncheckedVariance @@ -534,11 +534,11 @@ trait AdaptiveWorkStealingThreadPoolTasks extends ThreadPoolTasks with AdaptiveW trait ExecutionContextTasks extends Tasks { - + def executionContext = environment - + val environment: ExecutionContext - + // this part is a hack which allows switching val driver: Tasks = executionContext match { case eci: scala.concurrent.impl.ExecutionContextImpl => eci.executor match { @@ -548,13 +548,13 @@ trait ExecutionContextTasks extends Tasks { } case _ => ??? } - + def execute[R, Tp](task: Task[R, Tp]): () => R = driver execute task - + def executeAndWaitResult[R, Tp](task: Task[R, Tp]): R = driver executeAndWaitResult task - + def parallelismLevel = driver.parallelismLevel - + } diff --git a/src/library/scala/collection/parallel/immutable/ParHashMap.scala b/src/library/scala/collection/parallel/immutable/ParHashMap.scala index c9876c4d74..7f5255f5a3 100644 --- a/src/library/scala/collection/parallel/immutable/ParHashMap.scala +++ b/src/library/scala/collection/parallel/immutable/ParHashMap.scala @@ -20,8 +20,8 @@ import scala.collection.generic.CanCombineFrom import scala.collection.generic.GenericParMapTemplate import scala.collection.generic.GenericParMapCompanion import scala.collection.immutable.{ HashMap, TrieIterator } -import annotation.unchecked.uncheckedVariance -import collection.parallel.Task +import scala.annotation.unchecked.uncheckedVariance +import scala.collection.parallel.Task @@ -118,9 +118,9 @@ self => def remaining = sz - i override def toString = "HashTrieIterator(" + sz + ")" } - + /* debug */ - + private[parallel] def printDebugInfo() { println("Parallel hash trie") println("Top level inner trie type: " + trie.getClass) @@ -159,7 +159,7 @@ object ParHashMap extends ParMapFactory[ParHashMap] { private[parallel] abstract class HashMapCombiner[K, V] -extends collection.parallel.BucketCombiner[(K, V), ParHashMap[K, V], (K, V), HashMapCombiner[K, V]](HashMapCombiner.rootsize) { +extends scala.collection.parallel.BucketCombiner[(K, V), ParHashMap[K, V], (K, V), HashMapCombiner[K, V]](HashMapCombiner.rootsize) { //self: EnvironmentPassingCombiner[(K, V), ParHashMap[K, V]] => import HashMapCombiner._ val emptyTrie = HashMap.empty[K, V] @@ -202,7 +202,7 @@ extends collection.parallel.BucketCombiner[(K, V), ParHashMap[K, V], (K, V), Has def groupByKey[Repr](cbf: () => Combiner[V, Repr]): ParHashMap[K, Repr] = { val bucks = buckets.filter(_ != null).map(_.headPtr) val root = new Array[HashMap[K, AnyRef]](bucks.length) - + combinerTaskSupport.executeAndWaitResult(new CreateGroupedTrie(cbf, bucks, root, 0, bucks.length)) var bitmap = 0 diff --git a/src/library/scala/collection/parallel/immutable/ParHashSet.scala b/src/library/scala/collection/parallel/immutable/ParHashSet.scala index d1899601d7..42d00623ab 100644 --- a/src/library/scala/collection/parallel/immutable/ParHashSet.scala +++ b/src/library/scala/collection/parallel/immutable/ParHashSet.scala @@ -21,7 +21,7 @@ import scala.collection.generic.GenericParTemplate import scala.collection.generic.GenericParCompanion import scala.collection.generic.GenericCompanion import scala.collection.immutable.{ HashSet, TrieIterator } -import collection.parallel.Task +import scala.collection.parallel.Task @@ -132,7 +132,7 @@ object ParHashSet extends ParSetFactory[ParHashSet] { private[immutable] abstract class HashSetCombiner[T] -extends collection.parallel.BucketCombiner[T, ParHashSet[T], Any, HashSetCombiner[T]](HashSetCombiner.rootsize) { +extends scala.collection.parallel.BucketCombiner[T, ParHashSet[T], Any, HashSetCombiner[T]](HashSetCombiner.rootsize) { //self: EnvironmentPassingCombiner[T, ParHashSet[T]] => import HashSetCombiner._ val emptyTrie = HashSet.empty[T] diff --git a/src/library/scala/collection/parallel/immutable/ParIterable.scala b/src/library/scala/collection/parallel/immutable/ParIterable.scala index 349f4fa44c..4b0773ce7b 100644 --- a/src/library/scala/collection/parallel/immutable/ParIterable.scala +++ b/src/library/scala/collection/parallel/immutable/ParIterable.scala @@ -31,7 +31,7 @@ import scala.collection.GenIterable */ trait ParIterable[+T] extends collection/*.immutable*/.GenIterable[T] - with collection.parallel.ParIterable[T] + with scala.collection.parallel.ParIterable[T] with GenericParTemplate[T, ParIterable] with ParIterableLike[T, ParIterable[T], collection.immutable.Iterable[T]] with Immutable diff --git a/src/library/scala/collection/parallel/immutable/ParMap.scala b/src/library/scala/collection/parallel/immutable/ParMap.scala index 5060b36e7a..74b2672e67 100644 --- a/src/library/scala/collection/parallel/immutable/ParMap.scala +++ b/src/library/scala/collection/parallel/immutable/ParMap.scala @@ -56,7 +56,7 @@ self => * @param d the function mapping keys to values, used for non-present keys * @return a wrapper of the map with a default value */ - def withDefault[U >: V](d: K => U): collection.parallel.immutable.ParMap[K, U] = new ParMap.WithDefault[K, U](this, d) + def withDefault[U >: V](d: K => U): scala.collection.parallel.immutable.ParMap[K, U] = new ParMap.WithDefault[K, U](this, d) /** The same map with a given default value. * @@ -65,7 +65,7 @@ self => * @param d the function mapping keys to values, used for non-present keys * @return a wrapper of the map with a default value */ - def withDefaultValue[U >: V](d: U): collection.parallel.immutable.ParMap[K, U] = new ParMap.WithDefault[K, U](this, x => d) + def withDefaultValue[U >: V](d: U): scala.collection.parallel.immutable.ParMap[K, U] = new ParMap.WithDefault[K, U](this, x => d) } @@ -79,7 +79,7 @@ object ParMap extends ParMapFactory[ParMap] { implicit def canBuildFrom[K, V]: CanCombineFrom[Coll, (K, V), ParMap[K, V]] = new CanCombineFromMap[K, V] class WithDefault[K, +V](underlying: ParMap[K, V], d: K => V) - extends collection.parallel.ParMap.WithDefault[K, V](underlying, d) with ParMap[K, V] { + extends scala.collection.parallel.ParMap.WithDefault[K, V](underlying, d) with ParMap[K, V] { override def empty = new WithDefault(underlying.empty, d) override def updated[U >: V](key: K, value: U): WithDefault[K, U] = new WithDefault[K, U](underlying.updated[U](key, value), d) override def + [U >: V](kv: (K, U)): WithDefault[K, U] = updated(kv._1, kv._2) diff --git a/src/library/scala/collection/parallel/immutable/ParSeq.scala b/src/library/scala/collection/parallel/immutable/ParSeq.scala index dde6533c82..300efe9a58 100644 --- a/src/library/scala/collection/parallel/immutable/ParSeq.scala +++ b/src/library/scala/collection/parallel/immutable/ParSeq.scala @@ -29,7 +29,7 @@ import scala.collection.GenSeq */ trait ParSeq[+T] extends collection/*.immutable*/.GenSeq[T] - with collection.parallel.ParSeq[T] + with scala.collection.parallel.ParSeq[T] with ParIterable[T] with GenericParTemplate[T, ParSeq] with ParSeqLike[T, ParSeq[T], collection.immutable.Seq[T]] diff --git a/src/library/scala/collection/parallel/mutable/LazyCombiner.scala b/src/library/scala/collection/parallel/mutable/LazyCombiner.scala index 3694f40477..44ae7e2ce9 100644 --- a/src/library/scala/collection/parallel/mutable/LazyCombiner.scala +++ b/src/library/scala/collection/parallel/mutable/LazyCombiner.scala @@ -22,7 +22,7 @@ import scala.collection.parallel.Combiner * @tparam Buff the type of the buffers that contain leaf results and this combiner chains together */ trait LazyCombiner[Elem, +To, Buff <: Growable[Elem] with Sizing] extends Combiner[Elem, To] { -//self: collection.parallel.EnvironmentPassingCombiner[Elem, To] => +//self: scala.collection.parallel.EnvironmentPassingCombiner[Elem, To] => val chain: ArrayBuffer[Buff] val lastbuff = chain.last def +=(elem: Elem) = { lastbuff += elem; this } diff --git a/src/library/scala/collection/parallel/mutable/ParFlatHashTable.scala b/src/library/scala/collection/parallel/mutable/ParFlatHashTable.scala index d0c7f6050e..c7f025207c 100644 --- a/src/library/scala/collection/parallel/mutable/ParFlatHashTable.scala +++ b/src/library/scala/collection/parallel/mutable/ParFlatHashTable.scala @@ -9,7 +9,7 @@ package scala.collection package parallel.mutable -import collection.parallel.IterableSplitter +import scala.collection.parallel.IterableSplitter /** Parallel flat hash table. * @@ -19,13 +19,13 @@ import collection.parallel.IterableSplitter * * @author Aleksandar Prokopec */ -trait ParFlatHashTable[T] extends collection.mutable.FlatHashTable[T] { +trait ParFlatHashTable[T] extends scala.collection.mutable.FlatHashTable[T] { override def alwaysInitSizeMap = true abstract class ParFlatHashTableIterator(var idx: Int, val until: Int, val totalsize: Int) extends IterableSplitter[T] with SizeMapUtils { - import collection.DebugUtils._ + import scala.collection.DebugUtils._ private var traversed = 0 private val itertable = table diff --git a/src/library/scala/collection/parallel/mutable/ParHashMap.scala b/src/library/scala/collection/parallel/mutable/ParHashMap.scala index 8d39d6e0de..33a39e6038 100644 --- a/src/library/scala/collection/parallel/mutable/ParHashMap.scala +++ b/src/library/scala/collection/parallel/mutable/ParHashMap.scala @@ -12,12 +12,12 @@ package mutable -import collection.generic._ -import collection.mutable.DefaultEntry -import collection.mutable.HashEntry -import collection.mutable.HashTable -import collection.mutable.UnrolledBuffer -import collection.parallel.Task +import scala.collection.generic._ +import scala.collection.mutable.DefaultEntry +import scala.collection.mutable.HashEntry +import scala.collection.mutable.HashTable +import scala.collection.mutable.UnrolledBuffer +import scala.collection.parallel.Task @@ -157,8 +157,8 @@ object ParHashMap extends ParMapFactory[ParHashMap] { private[mutable] abstract class ParHashMapCombiner[K, V](private val tableLoadFactor: Int) -extends collection.parallel.BucketCombiner[(K, V), ParHashMap[K, V], DefaultEntry[K, V], ParHashMapCombiner[K, V]](ParHashMapCombiner.numblocks) - with collection.mutable.HashTable.HashUtils[K] +extends scala.collection.parallel.BucketCombiner[(K, V), ParHashMap[K, V], DefaultEntry[K, V], ParHashMapCombiner[K, V]](ParHashMapCombiner.numblocks) + with scala.collection.mutable.HashTable.HashUtils[K] { private var mask = ParHashMapCombiner.discriminantmask private var nonmasklen = ParHashMapCombiner.nonmasklength diff --git a/src/library/scala/collection/parallel/mutable/ParHashSet.scala b/src/library/scala/collection/parallel/mutable/ParHashSet.scala index 783f8dce77..870cae75de 100644 --- a/src/library/scala/collection/parallel/mutable/ParHashSet.scala +++ b/src/library/scala/collection/parallel/mutable/ParHashSet.scala @@ -10,11 +10,11 @@ package scala.collection.parallel.mutable -import collection.generic._ -import collection.mutable.FlatHashTable -import collection.parallel.Combiner -import collection.mutable.UnrolledBuffer -import collection.parallel.Task +import scala.collection.generic._ +import scala.collection.mutable.FlatHashTable +import scala.collection.parallel.Combiner +import scala.collection.mutable.UnrolledBuffer +import scala.collection.parallel.Task @@ -88,7 +88,7 @@ extends ParSet[T] init(in, x => x) } - import collection.DebugUtils._ + import scala.collection.DebugUtils._ override def debugInformation = buildString { append => append("Parallel flat hash table set") @@ -117,8 +117,8 @@ object ParHashSet extends ParSetFactory[ParHashSet] { private[mutable] abstract class ParHashSetCombiner[T](private val tableLoadFactor: Int) -extends collection.parallel.BucketCombiner[T, ParHashSet[T], Any, ParHashSetCombiner[T]](ParHashSetCombiner.numblocks) -with collection.mutable.FlatHashTable.HashUtils[T] { +extends scala.collection.parallel.BucketCombiner[T, ParHashSet[T], Any, ParHashSetCombiner[T]](ParHashSetCombiner.numblocks) +with scala.collection.mutable.FlatHashTable.HashUtils[T] { //self: EnvironmentPassingCombiner[T, ParHashSet[T]] => private var mask = ParHashSetCombiner.discriminantmask private var nonmasklen = ParHashSetCombiner.nonmasklength diff --git a/src/library/scala/collection/parallel/mutable/ParHashTable.scala b/src/library/scala/collection/parallel/mutable/ParHashTable.scala index 8c93732427..7cf464c287 100644 --- a/src/library/scala/collection/parallel/mutable/ParHashTable.scala +++ b/src/library/scala/collection/parallel/mutable/ParHashTable.scala @@ -13,8 +13,8 @@ package parallel.mutable -import collection.mutable.HashEntry -import collection.parallel.IterableSplitter +import scala.collection.mutable.HashEntry +import scala.collection.parallel.IterableSplitter @@ -22,7 +22,7 @@ import collection.parallel.IterableSplitter * enriching the data structure by fulfilling certain requirements * for their parallel construction and iteration. */ -trait ParHashTable[K, Entry >: Null <: HashEntry[K, Entry]] extends collection.mutable.HashTable[K, Entry] { +trait ParHashTable[K, Entry >: Null <: HashEntry[K, Entry]] extends scala.collection.mutable.HashTable[K, Entry] { override def alwaysInitSizeMap = true diff --git a/src/library/scala/collection/parallel/mutable/ParIterable.scala b/src/library/scala/collection/parallel/mutable/ParIterable.scala index b5747a31cf..a2847c3beb 100644 --- a/src/library/scala/collection/parallel/mutable/ParIterable.scala +++ b/src/library/scala/collection/parallel/mutable/ParIterable.scala @@ -27,7 +27,7 @@ import scala.collection.GenIterable * @since 2.9 */ trait ParIterable[T] extends collection/*.mutable*/.GenIterable[T] - with collection.parallel.ParIterable[T] + with scala.collection.parallel.ParIterable[T] with GenericParTemplate[T, ParIterable] with ParIterableLike[T, ParIterable[T], Iterable[T]] with Mutable { @@ -39,7 +39,7 @@ trait ParIterable[T] extends collection/*.mutable*/.GenIterable[T] override def toSeq: ParSeq[T] = toParCollection[T, ParSeq[T]](() => ParSeq.newCombiner[T]) - def seq: collection.mutable.Iterable[T] + def seq: scala.collection.mutable.Iterable[T] } /** $factoryInfo diff --git a/src/library/scala/collection/parallel/mutable/ParMap.scala b/src/library/scala/collection/parallel/mutable/ParMap.scala index 4b3eae4ad1..9ad14f15f8 100644 --- a/src/library/scala/collection/parallel/mutable/ParMap.scala +++ b/src/library/scala/collection/parallel/mutable/ParMap.scala @@ -12,8 +12,8 @@ package scala.collection.parallel.mutable -import collection.generic._ -import collection.parallel.Combiner +import scala.collection.generic._ +import scala.collection.parallel.Combiner @@ -29,7 +29,7 @@ import collection.parallel.Combiner */ trait ParMap[K, V] extends collection/*.mutable*/.GenMap[K, V] - with collection.parallel.ParMap[K, V] + with scala.collection.parallel.ParMap[K, V] with /* mutable */ ParIterable[(K, V)] with GenericParMapTemplate[K, V, ParMap] with /* mutable */ ParMapLike[K, V, ParMap[K, V], collection.mutable.Map[K, V]] @@ -41,7 +41,7 @@ extends collection/*.mutable*/.GenMap[K, V] override def empty: ParMap[K, V] = new ParHashMap[K, V] - def seq: collection.mutable.Map[K, V] + def seq: scala.collection.mutable.Map[K, V] override def updated [U >: V](key: K, value: U): ParMap[K, U] = this + ((key, value)) @@ -53,7 +53,7 @@ extends collection/*.mutable*/.GenMap[K, V] * @param d the function mapping keys to values, used for non-present keys * @return a wrapper of the map with a default value */ - def withDefault(d: K => V): collection.parallel.mutable.ParMap[K, V] = new ParMap.WithDefault[K, V](this, d) + def withDefault(d: K => V): scala.collection.parallel.mutable.ParMap[K, V] = new ParMap.WithDefault[K, V](this, d) /** The same map with a given default value. * @@ -62,7 +62,7 @@ extends collection/*.mutable*/.GenMap[K, V] * @param d the function mapping keys to values, used for non-present keys * @return a wrapper of the map with a default value */ - def withDefaultValue(d: V): collection.parallel.mutable.ParMap[K, V] = new ParMap.WithDefault[K, V](this, x => d) + def withDefaultValue(d: V): scala.collection.parallel.mutable.ParMap[K, V] = new ParMap.WithDefault[K, V](this, x => d) } @@ -76,7 +76,7 @@ object ParMap extends ParMapFactory[ParMap] { implicit def canBuildFrom[K, V]: CanCombineFrom[Coll, (K, V), ParMap[K, V]] = new CanCombineFromMap[K, V] class WithDefault[K, V](underlying: ParMap[K, V], d: K => V) - extends collection.parallel.ParMap.WithDefault(underlying, d) with ParMap[K, V] { + extends scala.collection.parallel.ParMap.WithDefault(underlying, d) with ParMap[K, V] { override def += (kv: (K, V)) = {underlying += kv; this} def -= (key: K) = {underlying -= key; this} override def empty = new WithDefault(underlying.empty, d) diff --git a/src/library/scala/collection/parallel/mutable/ParMapLike.scala b/src/library/scala/collection/parallel/mutable/ParMapLike.scala index 5c69c2e045..675b20949f 100644 --- a/src/library/scala/collection/parallel/mutable/ParMapLike.scala +++ b/src/library/scala/collection/parallel/mutable/ParMapLike.scala @@ -11,11 +11,11 @@ package mutable -import collection.generic._ -import collection.mutable.Builder -import collection.mutable.Cloneable -import collection.generic.Growable -import collection.generic.Shrinkable +import scala.collection.generic._ +import scala.collection.mutable.Builder +import scala.collection.mutable.Cloneable +import scala.collection.generic.Growable +import scala.collection.generic.Shrinkable @@ -33,9 +33,9 @@ import collection.generic.Shrinkable trait ParMapLike[K, V, +Repr <: ParMapLike[K, V, Repr, Sequential] with ParMap[K, V], - +Sequential <: collection.mutable.Map[K, V] with collection.mutable.MapLike[K, V, Sequential]] -extends collection.GenMapLike[K, V, Repr] - with collection.parallel.ParMapLike[K, V, Repr, Sequential] + +Sequential <: scala.collection.mutable.Map[K, V] with scala.collection.mutable.MapLike[K, V, Sequential]] +extends scala.collection.GenMapLike[K, V, Repr] + with scala.collection.parallel.ParMapLike[K, V, Repr, Sequential] with Growable[(K, V)] with Shrinkable[K] with Cloneable[Repr] diff --git a/src/library/scala/collection/parallel/mutable/ParSeq.scala b/src/library/scala/collection/parallel/mutable/ParSeq.scala index f46b369494..15f8d1d0b5 100644 --- a/src/library/scala/collection/parallel/mutable/ParSeq.scala +++ b/src/library/scala/collection/parallel/mutable/ParSeq.scala @@ -29,9 +29,9 @@ import scala.collection.GenSeq * @define Coll `mutable.ParSeq` * @define coll mutable parallel sequence */ -trait ParSeq[T] extends collection/*.mutable*/.GenSeq[T] // was: collection.mutable.Seq[T] +trait ParSeq[T] extends collection/*.mutable*/.GenSeq[T] // was: scala.collection.mutable.Seq[T] with ParIterable[T] - with collection.parallel.ParSeq[T] + with scala.collection.parallel.ParSeq[T] with GenericParTemplate[T, ParSeq] with ParSeqLike[T, ParSeq[T], collection.mutable.Seq[T]] { self => @@ -40,7 +40,7 @@ self => def update(i: Int, elem: T): Unit - def seq: collection.mutable.Seq[T] + def seq: scala.collection.mutable.Seq[T] override def toSeq: ParSeq[T] = this } diff --git a/src/library/scala/collection/parallel/mutable/ParSet.scala b/src/library/scala/collection/parallel/mutable/ParSet.scala index 6da4c8a7bc..689ce3436f 100644 --- a/src/library/scala/collection/parallel/mutable/ParSet.scala +++ b/src/library/scala/collection/parallel/mutable/ParSet.scala @@ -29,14 +29,14 @@ import scala.collection.GenSet trait ParSet[T] extends collection/*.mutable*/.GenSet[T] with ParIterable[T] - with collection.parallel.ParSet[T] + with scala.collection.parallel.ParSet[T] with GenericParTemplate[T, ParSet] with ParSetLike[T, ParSet[T], collection.mutable.Set[T]] { self => override def companion: GenericCompanion[ParSet] with GenericParCompanion[ParSet] = ParSet override def empty: ParSet[T] = ParHashSet() - def seq: collection.mutable.Set[T] + def seq: scala.collection.mutable.Set[T] } diff --git a/src/library/scala/collection/parallel/mutable/ParSetLike.scala b/src/library/scala/collection/parallel/mutable/ParSetLike.scala index 969fc2a405..e41d779a4d 100644 --- a/src/library/scala/collection/parallel/mutable/ParSetLike.scala +++ b/src/library/scala/collection/parallel/mutable/ParSetLike.scala @@ -35,8 +35,8 @@ trait ParSetLike[T, +Repr <: ParSetLike[T, Repr, Sequential] with ParSet[T], +Sequential <: mutable.Set[T] with mutable.SetLike[T, Sequential]] extends GenSetLike[T, Repr] - with collection.parallel.ParIterableLike[T, Repr, Sequential] - with collection.parallel.ParSetLike[T, Repr, Sequential] + with scala.collection.parallel.ParIterableLike[T, Repr, Sequential] + with scala.collection.parallel.ParSetLike[T, Repr, Sequential] with Growable[T] with Shrinkable[T] with Cloneable[Repr] diff --git a/src/library/scala/collection/parallel/mutable/ParTrieMap.scala b/src/library/scala/collection/parallel/mutable/ParTrieMap.scala index 359c35f1dd..5c452f628c 100644 --- a/src/library/scala/collection/parallel/mutable/ParTrieMap.scala +++ b/src/library/scala/collection/parallel/mutable/ParTrieMap.scala @@ -34,7 +34,7 @@ import scala.collection.concurrent.TrieMapIterator * @author Aleksandar Prokopec * @since 2.10 * @see [[http://docs.scala-lang.org/overviews/parallel-collections/concrete-parallel-collections.html#parallel_concurrent_tries Scala's Parallel Collections Library overview]] - * section on `ParTrieMap` for more information. + * section on `ParTrieMap` for more information. */ final class ParTrieMap[K, V] private[collection] (private val ctrie: TrieMap[K, V]) extends ParMap[K, V] @@ -130,7 +130,7 @@ extends TrieMapIterator[K, V](lev, ct, mustInit) protected override def newIterator(_lev: Int, _ct: TrieMap[K, V], _mustInit: Boolean) = new ParTrieMapSplitter[K, V](_lev, _ct, _mustInit) - override def shouldSplitFurther[S](coll: collection.parallel.ParIterable[S], parallelismLevel: Int) = { + override def shouldSplitFurther[S](coll: scala.collection.parallel.ParIterable[S], parallelismLevel: Int) = { val maxsplits = 3 + Integer.highestOneBit(parallelismLevel) level < maxsplits } diff --git a/src/library/scala/collection/parallel/package.scala b/src/library/scala/collection/parallel/package.scala index e3124af12e..30b4c0c914 100644 --- a/src/library/scala/collection/parallel/package.scala +++ b/src/library/scala/collection/parallel/package.scala @@ -12,8 +12,8 @@ import scala.collection.generic.CanBuildFrom import scala.collection.generic.CanCombineFrom import scala.collection.parallel.mutable.ParArray import scala.collection.mutable.UnrolledBuffer -import annotation.unchecked.uncheckedVariance -import language.implicitConversions +import scala.annotation.unchecked.uncheckedVariance +import scala.language.implicitConversions /** Package object for parallel collections. */ @@ -48,7 +48,7 @@ package object parallel { } else new ThreadPoolTaskSupport val defaultTaskSupport: TaskSupport = getTaskSupport - + def setTaskSupport[Coll](c: Coll, t: TaskSupport): Coll = { c match { case pc: ParIterableLike[_, _, _] => pc.tasksupport = t @@ -56,7 +56,7 @@ package object parallel { } c } - + /* implicit conversions */ implicit def factory2ops[From, Elem, To](bf: CanBuildFrom[From, Elem, To]) = new FactoryOps[From, Elem, To] { @@ -66,7 +66,7 @@ package object parallel { def otherwise(notbody: => R) = if (isParallel) isbody(asParallel) else notbody } } - implicit def traversable2ops[T](t: collection.GenTraversableOnce[T]) = new TraversableOps[T] { + implicit def traversable2ops[T](t: scala.collection.GenTraversableOnce[T]) = new TraversableOps[T] { def isParallel = t.isInstanceOf[Parallel] def isParIterable = t.isInstanceOf[ParIterable[_]] def asParIterable = t.asInstanceOf[ParIterable[T]] @@ -149,7 +149,7 @@ package parallel { * Automatically forwards the signal delegate when splitting. */ private[parallel] class BufferSplitter[T] - (private val buffer: collection.mutable.ArrayBuffer[T], private var index: Int, private val until: Int, _sigdel: collection.generic.Signalling) + (private val buffer: scala.collection.mutable.ArrayBuffer[T], private var index: Int, private val until: Int, _sigdel: scala.collection.generic.Signalling) extends IterableSplitter[T] { signalDelegate = _sigdel def hasNext = index < until diff --git a/src/library/scala/concurrent/Awaitable.scala b/src/library/scala/concurrent/Awaitable.scala index 99bdfbc5a9..655115349a 100644 --- a/src/library/scala/concurrent/Awaitable.scala +++ b/src/library/scala/concurrent/Awaitable.scala @@ -16,15 +16,34 @@ import scala.concurrent.util.Duration trait Awaitable[+T] { /** - * Should throw [[scala.concurrent.TimeoutException]] if it times out + * Await the "resolved" state of this Awaitable. * This method should not be called directly. + * + * @param atMost + * maximum wait time, which may be negative (no waiting is done), + * [[Duration.Inf]] for unbounded waiting, or a finite positive + * duration + * @return the Awaitable itself + * @throws InterruptedException if the wait call was interrupted + * @throws TimeoutException if after waiting for the specified time this Awaitable is still not ready + * @throws IllegalArgumentException if `atMost` is [[Duration.Undefined]] */ @throws(classOf[TimeoutException]) + @throws(classOf[InterruptedException]) def ready(atMost: Duration)(implicit permit: CanAwait): this.type /** - * Throws exceptions if it cannot produce a T within the specified time. + * Await and return the result of this Awaitable, which is either of type T or a thrown exception (any Throwable). * This method should not be called directly. + * + * @param atMost + * maximum wait time, which may be negative (no waiting is done), + * [[Duration.Inf]] for unbounded waiting, or a finite positive + * duration + * @return the value if the Awaitable was successful within the specific maximum wait time + * @throws InterruptedException if the wait call was interrupted + * @throws TimeoutException if after waiting for the specified time this Awaitable is still not ready + * @throws IllegalArgumentException if `atMost` is [[Duration.Undefined]] */ @throws(classOf[Exception]) def result(atMost: Duration)(implicit permit: CanAwait): T diff --git a/src/library/scala/concurrent/BlockContext.scala b/src/library/scala/concurrent/BlockContext.scala index 640560a174..83333a9e94 100644 --- a/src/library/scala/concurrent/BlockContext.scala +++ b/src/library/scala/concurrent/BlockContext.scala @@ -8,9 +8,6 @@ package scala.concurrent -import java.lang.Thread -import scala.concurrent.util.Duration - /** * A context to be notified by `scala.concurrent.blocking` when * a thread is about to block. In effect this trait provides diff --git a/src/library/scala/concurrent/ExecutionContext.scala b/src/library/scala/concurrent/ExecutionContext.scala index 1be6050303..844ec14241 100644 --- a/src/library/scala/concurrent/ExecutionContext.scala +++ b/src/library/scala/concurrent/ExecutionContext.scala @@ -10,7 +10,6 @@ package scala.concurrent import java.util.concurrent.{ ExecutorService, Executor } -import scala.concurrent.util.Duration import scala.annotation.implicitNotFound import scala.util.Try diff --git a/src/library/scala/concurrent/Future.scala b/src/library/scala/concurrent/Future.scala index bc0b437a33..111900e7bc 100644 --- a/src/library/scala/concurrent/Future.scala +++ b/src/library/scala/concurrent/Future.scala @@ -8,7 +8,7 @@ package scala.concurrent -import language.higherKinds +import scala.language.higherKinds import java.util.concurrent.{ ConcurrentLinkedQueue, TimeUnit, Callable } import java.util.concurrent.TimeUnit.{ NANOSECONDS => NANOS, MILLISECONDS ⇒ MILLIS } @@ -16,7 +16,6 @@ import java.lang.{ Iterable => JIterable } import java.util.{ LinkedList => JLinkedList } import java.util.concurrent.atomic.{ AtomicReferenceFieldUpdater, AtomicInteger, AtomicBoolean } -import scala.concurrent.util.Duration import scala.util.control.NonFatal import scala.Option import scala.util.{Try, Success, Failure} @@ -213,7 +212,7 @@ trait Future[+T] extends Awaitable[T] { * this future, or the 'f' function to the failed result. If there is any non-fatal * exception thrown when 's' or 'f' is applied, that exception will be propagated * to the resulting future. - * + * * @param s function that transforms a successful result of the receiver into a * successful result of the returned future * @param f function that transforms a failure of the receiver into a failure of @@ -429,7 +428,7 @@ trait Future[+T] extends Awaitable[T] { */ def zip[U](that: Future[U]): Future[(T, U)] = { val p = Promise[(T, U)]() - + this onComplete { case f: Failure[_] => p complete f.asInstanceOf[Failure[(T, U)]] case Success(r) => @@ -440,7 +439,7 @@ trait Future[+T] extends Awaitable[T] { case f => p failure f } } - + p.future } @@ -556,7 +555,7 @@ trait Future[+T] extends Awaitable[T] { * Note: using this method yields nondeterministic dataflow programs. */ object Future { - + private[concurrent] val toBoxed = Map[Class[_], Class[_]]( classOf[Boolean] -> classOf[java.lang.Boolean], classOf[Byte] -> classOf[java.lang.Byte], @@ -570,19 +569,19 @@ object Future { ) /** Creates an already completed Future with the specified exception. - * + * * @tparam T the type of the value in the future * @return the newly created `Future` object */ def failed[T](exception: Throwable): Future[T] = Promise.failed(exception).future /** Creates an already completed Future with the specified result. - * + * * @tparam T the type of the value in the future * @return the newly created `Future` object */ def successful[T](result: T): Future[T] = Promise.successful(result).future - + /** Starts an asynchronous computation and returns a `Future` object with the result of that computation. * * The result becomes available once the asynchronous computation is completed. diff --git a/src/library/scala/concurrent/FutureTaskRunner.scala b/src/library/scala/concurrent/FutureTaskRunner.scala index d7f1e1c2f9..eeadaddb5e 100644 --- a/src/library/scala/concurrent/FutureTaskRunner.scala +++ b/src/library/scala/concurrent/FutureTaskRunner.scala @@ -8,7 +8,7 @@ package scala.concurrent -import language.{implicitConversions, higherKinds} +import scala.language.{implicitConversions, higherKinds} /** The `FutureTaskRunner</code> trait is a base trait of task runners * that provide some sort of future abstraction. diff --git a/src/library/scala/concurrent/JavaConversions.scala b/src/library/scala/concurrent/JavaConversions.scala index ffb9926fef..f66d64bc3b 100644 --- a/src/library/scala/concurrent/JavaConversions.scala +++ b/src/library/scala/concurrent/JavaConversions.scala @@ -9,7 +9,7 @@ package scala.concurrent import java.util.concurrent.{ExecutorService, Executor} -import language.implicitConversions +import scala.language.implicitConversions /** The `JavaConversions` object provides implicit converstions supporting * interoperability between Scala and Java concurrency classes. diff --git a/src/library/scala/concurrent/TaskRunner.scala b/src/library/scala/concurrent/TaskRunner.scala index 2e11ac42b0..2037c43cf8 100644 --- a/src/library/scala/concurrent/TaskRunner.scala +++ b/src/library/scala/concurrent/TaskRunner.scala @@ -8,7 +8,7 @@ package scala.concurrent -import language.{higherKinds, implicitConversions} +import scala.language.{higherKinds, implicitConversions} /** The `TaskRunner` trait... * diff --git a/src/library/scala/concurrent/ThreadPoolRunner.scala b/src/library/scala/concurrent/ThreadPoolRunner.scala index 594555d49b..4b777ba069 100644 --- a/src/library/scala/concurrent/ThreadPoolRunner.scala +++ b/src/library/scala/concurrent/ThreadPoolRunner.scala @@ -9,7 +9,7 @@ package scala.concurrent import java.util.concurrent.{ExecutorService, Callable, TimeUnit} -import language.implicitConversions +import scala.language.implicitConversions /** The `ThreadPoolRunner` trait uses a `java.util.concurrent.ExecutorService` * to run submitted tasks. diff --git a/src/library/scala/concurrent/ThreadRunner.scala b/src/library/scala/concurrent/ThreadRunner.scala index ab709e0210..067269a911 100644 --- a/src/library/scala/concurrent/ThreadRunner.scala +++ b/src/library/scala/concurrent/ThreadRunner.scala @@ -9,7 +9,7 @@ package scala.concurrent import java.lang.Thread -import language.implicitConversions +import scala.language.implicitConversions /** The `ThreadRunner` trait... * diff --git a/src/library/scala/concurrent/impl/ExecutionContextImpl.scala b/src/library/scala/concurrent/impl/ExecutionContextImpl.scala index 875a558887..c517a05a81 100644 --- a/src/library/scala/concurrent/impl/ExecutionContextImpl.scala +++ b/src/library/scala/concurrent/impl/ExecutionContextImpl.scala @@ -14,7 +14,6 @@ import java.util.concurrent.{ LinkedBlockingQueue, Callable, Executor, ExecutorS import java.util.Collection import scala.concurrent.forkjoin._ import scala.concurrent.{ BlockContext, ExecutionContext, Awaitable, CanAwait, ExecutionContextExecutor, ExecutionContextExecutorService } -import scala.concurrent.util.Duration import scala.util.control.NonFatal diff --git a/src/library/scala/concurrent/impl/Promise.scala b/src/library/scala/concurrent/impl/Promise.scala index b19bed004b..9228872f2b 100644 --- a/src/library/scala/concurrent/impl/Promise.scala +++ b/src/library/scala/concurrent/impl/Promise.scala @@ -12,7 +12,7 @@ package scala.concurrent.impl import java.util.concurrent.TimeUnit.NANOSECONDS import scala.concurrent.{ ExecutionContext, CanAwait, OnCompleteRunnable, TimeoutException, ExecutionException } -import scala.concurrent.util.Duration +import scala.concurrent.util.{ Duration, Deadline, FiniteDuration } import scala.annotation.tailrec import scala.util.control.NonFatal import scala.util.{ Try, Success, Failure } @@ -64,30 +64,40 @@ private[concurrent] object Promise { protected final def tryAwait(atMost: Duration): Boolean = { @tailrec - def awaitUnsafe(waitTimeNanos: Long): Boolean = { - if (value.isEmpty && waitTimeNanos > 0) { - val ms = NANOSECONDS.toMillis(waitTimeNanos) - val ns = (waitTimeNanos % 1000000l).toInt // as per object.wait spec - val start = System.nanoTime() - try { - synchronized { - if (!isCompleted) wait(ms, ns) // previously - this was a `while`, ending up in an infinite loop - } - } catch { - case e: InterruptedException => - } + def awaitUnsafe(deadline: Deadline, nextWait: FiniteDuration): Boolean = { + if (!isCompleted && nextWait > Duration.Zero) { + val ms = nextWait.toMillis + val ns = (nextWait.toNanos % 1000000l).toInt // as per object.wait spec + + synchronized { if (!isCompleted) wait(ms, ns) } - awaitUnsafe(waitTimeNanos - (System.nanoTime() - start)) + awaitUnsafe(deadline, deadline.timeLeft) } else isCompleted } - awaitUnsafe(if (atMost.isFinite) atMost.toNanos else Long.MaxValue) + @tailrec + def awaitUnbounded(): Boolean = { + if (isCompleted) true + else { + synchronized { if (!isCompleted) wait() } + awaitUnbounded() + } + } + + import Duration.Undefined + atMost match { + case u if u eq Undefined => throw new IllegalArgumentException("cannot wait for Undefined period") + case Duration.Inf => awaitUnbounded + case Duration.MinusInf => isCompleted + case f: FiniteDuration => if (f > Duration.Zero) awaitUnsafe(f.fromNow, f) else isCompleted + } } @throws(classOf[TimeoutException]) + @throws(classOf[InterruptedException]) def ready(atMost: Duration)(implicit permit: CanAwait): this.type = if (isCompleted || tryAwait(atMost)) this - else throw new TimeoutException("Futures timed out after [" + atMost.toMillis + "] milliseconds") + else throw new TimeoutException("Futures timed out after [" + atMost + "]") @throws(classOf[Exception]) def result(atMost: Duration)(implicit permit: CanAwait): T = diff --git a/src/library/scala/concurrent/package.scala b/src/library/scala/concurrent/package.scala index a2ef42fac8..1d06341d4d 100644 --- a/src/library/scala/concurrent/package.scala +++ b/src/library/scala/concurrent/package.scala @@ -67,26 +67,39 @@ package concurrent { */ object Await { /** + * Await the "resolved" state of this Awaitable. * Invokes ready() on the awaitable, properly wrapped by a call to `scala.concurrent.blocking`. - * ready() blocks until the awaitable has completed or the timeout expires. * - * Throws a TimeoutException if the timeout expires, as that is in the contract of `Awaitable.ready`. - * @param awaitable the `Awaitable` on which `ready` is to be called - * @param atMost the maximum timeout for which to wait - * @return the result of `awaitable.ready` which is defined to be the awaitable itself. + * @param awaitable + * the `Awaitable` on which `ready` is to be called + * @param atMost + * maximum wait time, which may be negative (no waiting is done), + * [[Duration.Inf]] for unbounded waiting, or a finite positive + * duration + * @return the awaitable itself + * @throws InterruptedException if the wait call was interrupted + * @throws TimeoutException if after waiting for the specified time this Awaitable is still not ready + * @throws IllegalArgumentException if `atMost` is [[Duration.Undefined]] */ @throws(classOf[TimeoutException]) + @throws(classOf[InterruptedException]) def ready[T](awaitable: Awaitable[T], atMost: Duration): awaitable.type = blocking(awaitable.ready(atMost)(AwaitPermission)) /** + * Await and return the result of this Awaitable, which is either of type T or a thrown exception (any Throwable). * Invokes result() on the awaitable, properly wrapped by a call to `scala.concurrent.blocking`. - * result() blocks until the awaitable has completed or the timeout expires. * - * Throws a TimeoutException if the timeout expires, or any exception thrown by `Awaitable.result`. - * @param awaitable the `Awaitable` on which `result` is to be called - * @param atMost the maximum timeout for which to wait - * @return the result of `awaitable.result` + * @param awaitable + * the `Awaitable` on which `result` is to be called + * @param atMost + * maximum wait time, which may be negative (no waiting is done), + * [[Duration.Inf]] for unbounded waiting, or a finite positive + * duration + * @return the value if the Awaitable was successful within the specific maximum wait time + * @throws InterruptedException if the wait call was interrupted + * @throws TimeoutException if after waiting for the specified time this Awaitable is still not ready + * @throws IllegalArgumentException if `atMost` is [[Duration.Undefined]] */ @throws(classOf[Exception]) def result[T](awaitable: Awaitable[T], atMost: Duration): T = diff --git a/src/library/scala/concurrent/util/Duration.scala b/src/library/scala/concurrent/util/Duration.scala index bf0f3006f1..3f8b98831e 100644 --- a/src/library/scala/concurrent/util/Duration.scala +++ b/src/library/scala/concurrent/util/Duration.scala @@ -10,36 +10,121 @@ package scala.concurrent.util import java.util.concurrent.TimeUnit import TimeUnit._ -import java.lang.{ Double => JDouble } -import language.implicitConversions - -case class Deadline private (time: Duration) { - def +(other: Duration): Deadline = copy(time = time + other) - def -(other: Duration): Deadline = copy(time = time - other) - def -(other: Deadline): Duration = time - other.time - def timeLeft: Duration = this - Deadline.now +import java.lang.{ Double => JDouble, Long => JLong } +import scala.language.implicitConversions + +/** + * This class stores a deadline, as obtained via `Deadline.now` or the + * duration DSL: + * + * {{{ + * import scala.concurrent.util.duration._ + * 3.seconds.fromNow + * }}} + * + * Its main purpose is to manage repeated attempts to achieve something (like + * awaiting a condition) by offering the methods `hasTimeLeft` and `timeLeft`. All + * durations are measured according to `System.nanoTime` aka wall-time; this + * does not take into account changes to the system clock (such as leap + * seconds). + */ +case class Deadline private (time: FiniteDuration) extends Ordered[Deadline] { + /** + * Return a deadline advanced (i.e. moved into the future) by the given duration. + */ + def +(other: FiniteDuration): Deadline = copy(time = time + other) + /** + * Return a deadline moved backwards (i.e. towards the past) by the given duration. + */ + def -(other: FiniteDuration): Deadline = copy(time = time - other) + /** + * Calculate time difference between this and the other deadline, where the result is directed (i.e. may be negative). + */ + def -(other: Deadline): FiniteDuration = time - other.time + /** + * Calculate time difference between this duration and now; the result is negative if the deadline has passed. + * + * '''''Note that on some systems this operation is costly because it entails a system call.''''' + * Check `System.nanoTime` for your platform. + */ + def timeLeft: FiniteDuration = this - Deadline.now + /** + * Determine whether the deadline still lies in the future at the point where this method is called. + * + * '''''Note that on some systems this operation is costly because it entails a system call.''''' + * Check `System.nanoTime` for your platform. + */ def hasTimeLeft(): Boolean = !isOverdue() + /** + * Determine whether the deadline lies in the past at the point where this method is called. + * + * '''''Note that on some systems this operation is costly because it entails a system call.''''' + * Check `System.nanoTime` for your platform. + */ def isOverdue(): Boolean = (time.toNanos - System.nanoTime()) < 0 + /** + * The natural ordering for deadline is determined by the natural order of the underlying (finite) duration. + */ + def compare(other: Deadline) = time compare other.time } object Deadline { + /** + * Construct a deadline due exactly at the point where this method is called. Useful for then + * advancing it to obtain a future deadline, or for sampling the current time exactly once and + * then comparing it to multiple deadlines (using subtraction). + */ def now: Deadline = Deadline(Duration(System.nanoTime, NANOSECONDS)) + + /** + * The natural ordering for deadline is determined by the natural order of the underlying (finite) duration. + */ + implicit object DeadlineIsOrdered extends Ordering[Deadline] { + def compare(a: Deadline, b: Deadline) = a compare b + } } -// TODO: "Inf", "PlusInf", "MinusInf", where did these names come from? -// TODO: Duration.create(n, DAYS) == Duration(Long.MaxValue, NANOSECONDS) forall (n: Double) >= 106752d object Duration { + /** + * This implicit conversion allows the use of a Deadline in place of a Duration, which will + * insert the time left until the deadline in its place. + */ implicit def timeLeft(implicit d: Deadline): Duration = d.timeLeft - def apply(length: Double, unit: TimeUnit): FiniteDuration = fromNanos(unit.toNanos(1) * length) - def apply(length: Long, unit: TimeUnit): FiniteDuration = new FiniteDuration(length, unit) - def apply(length: Long, unit: String): FiniteDuration = new FiniteDuration(length, Duration.timeUnit(unit)) + /** + * Construct a Duration from the given length and unit. Observe that nanosecond precision may be lost if + * + * - the unit is NANOSECONDS + * - and the length has an absolute value greater than 2^53 + * + * Infinite inputs (and NaN) are converted into [[Duration.Inf]], [[Duration.MinusInf]] and [[Duration.Undefined]], respectively. + * + * @throws IllegalArgumentException if the length was finite but the resulting duration cannot be expressed as a [[FiniteDuration]] + */ + def apply(length: Double, unit: TimeUnit): Duration = fromNanos(unit.toNanos(1) * length) + /** + * Construct a finite duration from the given length and time unit. The unit given is retained + * throughout calculations as long as possible, so that it can be retrieved later. + */ + def apply(length: Long, unit: TimeUnit): FiniteDuration = new FiniteDuration(length, unit) + /** + * Construct a finite duration from the given length and time unit, where the latter is + * looked up in a list of string representation. Valid choices are: + * + * `d, day, h, hour, min, minute, s, sec, second, ms, milli, millisecond, µs, micro, microsecond, ns, nano, nanosecond` + * and their pluralized forms (for every but the first mentioned form of each unit, i.e. no "ds", but "days"). + */ + def apply(length: Long, unit: String): FiniteDuration = new FiniteDuration(length, Duration.timeUnit(unit)) + + // Double stores 52 bits mantissa, but there is an implied '1' in front, making the limit 2^53 + final val maxPreciseDouble = 9007199254740992d /** * Parse String into Duration. Format is `"<length><unit>"`, where * whitespace is allowed before, between and after the parts. Infinities are * designated by `"Inf"`, `"PlusInf"`, `"+Inf"` and `"-Inf"` or `"MinusInf"`. - * Throws exception if format is not parseable. + * + * @throws NumberFormatException if format is not parseable */ def apply(s: String): Duration = { val s1: String = s filterNot (_.isWhitespace) @@ -48,21 +133,24 @@ object Duration { case "MinusInf" | "-Inf" => MinusInf case _ => val unitName = s1.reverse takeWhile (_.isLetter) reverse; - def length = JDouble.parseDouble(s1 dropRight unitName.length) timeUnit get unitName match { - case Some(unit) => Duration(length, unit) - case _ => sys.error("format error " + s) + case Some(unit) => + val valueStr = s1 dropRight unitName.length + val valueD = JDouble.parseDouble(valueStr) + if (valueD >= -maxPreciseDouble && valueD <= maxPreciseDouble) Duration(valueD, unit) + else Duration(JLong.parseLong(valueStr), unit) + case _ => throw new NumberFormatException("format error " + s) } } } // "ms milli millisecond" -> List("ms", "milli", "millis", "millisecond", "milliseconds") - private def words(s: String) = (s.trim split "\\s+").toList - private def expandLabels(labels: String): List[String] = { + private[this] def words(s: String) = (s.trim split "\\s+").toList + private[this] def expandLabels(labels: String): List[String] = { val hd :: rest = words(labels) hd :: rest.flatMap(s => List(s, s + "s")) } - private val timeUnitLabels = List( + private[this] val timeUnitLabels = List( DAYS -> "d day", HOURS -> "h hour", MINUTES -> "min minute", @@ -80,124 +168,218 @@ object Duration { protected[util] val timeUnit: Map[String, TimeUnit] = timeUnitLabels flatMap { case (unit, names) => expandLabels(names) map (_ -> unit) } toMap + /** + * Extract length and time unit out of a string, where the format must match the description for [[Duration$.apply(String):Duration apply(String)]]. + * The extractor will not match for malformed strings or non-finite durations. + */ def unapply(s: String): Option[(Long, TimeUnit)] = ( try Some(apply(s)) catch { case _: RuntimeException => None } ) flatMap unapply + /** + * Extract length and time unit out of a duration, if it is finite. + */ def unapply(d: Duration): Option[(Long, TimeUnit)] = if (d.isFinite) Some((d.length, d.unit)) else None - def fromNanos(nanos: Double): FiniteDuration = - fromNanos((nanos + 0.5).toLong) + /** + * Construct a possibly infinite or undefined Duration from the given number of nanoseconds. + * + * - `Double.PositiveInfinity` is mapped to [[Duration.Inf]] + * - `Double.NegativeInfinity` is mapped to [[Duration.MinusInf]] + * - `Double.NaN` is mapped to [[Duration.Undefined]] + * - `-0d` is mapped to [[Duration.Zero]] (exactly like `0d`) + * + * The semantics of the resulting Duration objects matches the semantics of their Double + * counterparts with respect to arithmetic operations. + * + * @throws IllegalArgumentException if the length was finite but the resulting duration cannot be expressed as a [[FiniteDuration]] + */ + def fromNanos(nanos: Double): Duration = { + if (nanos.isInfinite) + if (nanos > 0) Inf else MinusInf + else if (nanos.isNaN) + Undefined + else if (nanos > Long.MaxValue || nanos < Long.MinValue) + throw new IllegalArgumentException("trying to construct too large duration with " + nanos + "ns") + else + fromNanos((nanos + 0.5).toLong) + } + private[this] final val µs_per_ns = 1000L + private[this] final val ms_per_ns = µs_per_ns * 1000 + private[this] final val s_per_ns = ms_per_ns * 1000 + private[this] final val min_per_ns = s_per_ns * 60 + private[this] final val h_per_ns = min_per_ns * 60 + private[this] final val d_per_ns = h_per_ns * 24 + + /** + * Construct a finite duration from the given number of nanoseconds. The + * result will have the coarsest possible time unit which can exactly express + * this duration. + * + * @throws IllegalArgumentException for `Long.MinValue` since that would lead to inconsistent behavior afterwards (cannot be negated) + */ def fromNanos(nanos: Long): FiniteDuration = { - if (nanos % 86400000000000L == 0) { - Duration(nanos / 86400000000000L, DAYS) - } else if (nanos % 3600000000000L == 0) { - Duration(nanos / 3600000000000L, HOURS) - } else if (nanos % 60000000000L == 0) { - Duration(nanos / 60000000000L, MINUTES) - } else if (nanos % 1000000000L == 0) { - Duration(nanos / 1000000000L, SECONDS) - } else if (nanos % 1000000L == 0) { - Duration(nanos / 1000000L, MILLISECONDS) - } else if (nanos % 1000L == 0) { - Duration(nanos / 1000L, MICROSECONDS) - } else { - Duration(nanos, NANOSECONDS) - } + if (nanos % d_per_ns == 0) Duration(nanos / d_per_ns, DAYS) + else if (nanos % h_per_ns == 0) Duration(nanos / h_per_ns, HOURS) + else if (nanos % min_per_ns == 0) Duration(nanos / min_per_ns, MINUTES) + else if (nanos % s_per_ns == 0) Duration(nanos / s_per_ns, SECONDS) + else if (nanos % ms_per_ns == 0) Duration(nanos / ms_per_ns, MILLISECONDS) + else if (nanos % µs_per_ns == 0) Duration(nanos / µs_per_ns, MICROSECONDS) + else Duration(nanos, NANOSECONDS) } /** - * Parse TimeUnit from string representation. + * Preconstructed value of `0.days`. */ + // unit as coarse as possible to keep (_ + Zero) sane unit-wise + val Zero: FiniteDuration = new FiniteDuration(0, DAYS) - val Zero: FiniteDuration = new FiniteDuration(0, NANOSECONDS) - - object Undefined extends Infinite { - private def fail(what: String) = throw new IllegalArgumentException(s"cannot $what Undefined duration") - + /** + * The Undefined value corresponds closely to Double.NaN: + * + * - it is the result of otherwise invalid operations + * - it does not equal itself (according to `equals()`) + * - it compares greater than any other Duration apart from itself (for which `compare` returns 0) + * + * The particular comparison semantics mirror those of Double.NaN. + * + * '''''Use `eq` when checking an input of a method against this value.''''' + */ + val Undefined: Infinite = new Infinite { override def toString = "Duration.Undefined" - override def equals(other: Any) = this eq other.asInstanceOf[AnyRef] - override def +(other: Duration): Duration = fail("add") - override def -(other: Duration): Duration = fail("subtract") - override def *(factor: Double): Duration = fail("multiply") - override def /(factor: Double): Duration = fail("divide") - override def /(other: Duration): Double = fail("divide") - def compare(other: Duration) = fail("compare") - def unary_- : Duration = fail("negate") + override def equals(other: Any) = false + override def +(other: Duration): Duration = this + override def -(other: Duration): Duration = this + override def *(factor: Double): Duration = this + override def /(factor: Double): Duration = this + override def /(other: Duration): Double = Double.NaN + def compare(other: Duration) = if (other eq this) 0 else 1 + def unary_- : Duration = this + def toUnit(unit: TimeUnit): Double = Double.NaN } sealed abstract class Infinite extends Duration { def +(other: Duration): Duration = other match { - case x: Infinite if x ne this => throw new IllegalArgumentException("illegal addition of infinities") + case x if x eq Undefined => Undefined + case x: Infinite if x ne this => Undefined + case _ => this + } + def -(other: Duration): Duration = other match { + case x if x eq Undefined => Undefined + case x: Infinite if x eq this => Undefined case _ => this } - // Is this really intended to throw if the argument is "this" but otherwise return this? - def -(other: Duration): Duration = - if (other ne this) this - else throw new IllegalArgumentException("illegal subtraction of infinities") - def *(factor: Double): Duration = this - def /(factor: Double): Duration = this + def *(factor: Double): Duration = + if (factor == 0d || factor.isNaN) Undefined + else if (factor < 0d) -this + else this + def /(factor: Double): Duration = + if (factor.isNaN || factor.isInfinite) Undefined + else if ((factor compare 0d) < 0) -this + else this def /(other: Duration): Double = other match { - case _: Infinite => throw new IllegalArgumentException("illegal division of infinities") - // maybe questionable but pragmatic: Inf / 0 => Inf + case _: Infinite => Double.NaN case x => Double.PositiveInfinity * (if ((this > Zero) ^ (other >= Zero)) -1 else 1) } final def isFinite() = false - private def fail(what: String) = throw new IllegalArgumentException(s"$what not allowed on infinite Durations") - def length: Long = fail("length") - def toNanos: Long = fail("toNanos") - def toMicros: Long = fail("toMicros") - def toMillis: Long = fail("toMillis") - def toSeconds: Long = fail("toSeconds") - def toMinutes: Long = fail("toMinutes") - def toHours: Long = fail("toHours") - def toDays: Long = fail("toDays") - - def unit: TimeUnit = fail("unit") - def toUnit(unit: TimeUnit): Double = fail("toUnit") + private[this] def fail(what: String) = throw new IllegalArgumentException(s"$what not allowed on infinite Durations") + final def length: Long = fail("length") + final def unit: TimeUnit = fail("unit") + final def toNanos: Long = fail("toNanos") + final def toMicros: Long = fail("toMicros") + final def toMillis: Long = fail("toMillis") + final def toSeconds: Long = fail("toSeconds") + final def toMinutes: Long = fail("toMinutes") + final def toHours: Long = fail("toHours") + final def toDays: Long = fail("toDays") } /** - * Infinite duration: greater than any other and not equal to any other, - * including itself. + * Infinite duration: greater than any other (apart from Undefined) and not equal to any other + * but itself. This value closely corresponds to Double.PositiveInfinity, + * matching its semantics in arithmetic operations. */ val Inf: Infinite = new Infinite { override def toString = "Duration.Inf" - def compare(other: Duration) = if (other eq this) 0 else 1 + def compare(other: Duration) = other match { + case x if x eq Undefined => -1 // Undefined != Undefined + case x if x eq this => 0 // `case Inf` will include null checks in the byte code + case _ => 1 + } def unary_- : Duration = MinusInf + def toUnit(unit: TimeUnit): Double = Double.PositiveInfinity } /** - * Infinite negative duration: lesser than any other and not equal to any other, - * including itself. + * Infinite duration: less than any other and not equal to any other + * but itself. This value closely corresponds to Double.NegativeInfinity, + * matching its semantics in arithmetic operations. */ val MinusInf: Infinite = new Infinite { override def toString = "Duration.MinusInf" def compare(other: Duration) = if (other eq this) 0 else -1 def unary_- : Duration = Inf + def toUnit(unit: TimeUnit): Double = Double.NegativeInfinity } // Java Factories - def create(length: Long, unit: TimeUnit): FiniteDuration = apply(length, unit) - def create(length: Double, unit: TimeUnit): FiniteDuration = apply(length, unit) - def create(length: Long, unit: String): FiniteDuration = apply(length, unit) - def create(s: String): Duration = apply(s) + /** + * Construct a finite duration from the given length and time unit. The unit given is retained + * throughout calculations as long as possible, so that it can be retrieved later. + */ + def create(length: Long, unit: TimeUnit): FiniteDuration = apply(length, unit) + /** + * Construct a Duration from the given length and unit. Observe that nanosecond precision may be lost if + * + * - the unit is NANOSECONDS + * - and the length has an absolute value greater than 2^53 + * + * Infinite inputs (and NaN) are converted into [[Duration.Inf]], [[Duration.MinusInf]] and [[Duration.Undefined]], respectively. + * + * @throws IllegalArgumentException if the length was finite but the resulting duration cannot be expressed as a [[FiniteDuration]] + */ + def create(length: Double, unit: TimeUnit): Duration = apply(length, unit) + /** + * Construct a finite duration from the given length and time unit, where the latter is + * looked up in a list of string representation. Valid choices are: + * + * `d, day, h, hour, min, minute, s, sec, second, ms, milli, millisecond, µs, micro, microsecond, ns, nano, nanosecond` + * and their pluralized forms (for every but the first mentioned form of each unit, i.e. no "ds", but "days"). + */ + def create(length: Long, unit: String): FiniteDuration = apply(length, unit) + /** + * Parse String into Duration. Format is `"<length><unit>"`, where + * whitespace is allowed before, between and after the parts. Infinities are + * designated by `"Inf"`, `"PlusInf"`, `"+Inf"` and `"-Inf"` or `"MinusInf"`. + * + * @throws NumberFormatException if format is not parseable + */ + def create(s: String): Duration = apply(s) + + /** + * The natural ordering of durations matches the natural ordering for Double, including non-finite values. + */ implicit object DurationIsOrdered extends Ordering[Duration] { def compare(a: Duration, b: Duration) = a compare b } } /** - * Utility for working with java.util.concurrent.TimeUnit durations. + * <h2>Utility for working with java.util.concurrent.TimeUnit durations.</h2> + * + * '''''This class is not meant as a general purpose representation of time, it is + * optimized for the needs of `scala.concurrent`.''''' + * + * <h2>Basic Usage</h2> * * <p/> * Examples: - * <pre> + * {{{ * import scala.concurrent.util.Duration * import java.util.concurrent.TimeUnit * @@ -207,57 +389,212 @@ object Duration { * duration.toNanos * duration < 1.second * duration <= Duration.Inf - * </pre> + * }}} + * + * '''''Invoking inexpressible conversions (like calling `toSeconds` on an infinite duration) will throw an IllegalArgumentException.''''' * * <p/> * Implicits are also provided for Int, Long and Double. Example usage: - * <pre> + * {{{ * import scala.concurrent.util.Duration._ * * val duration = 100 millis - * </pre> + * }}} + * + * '''''The DSL provided by the implicit conversions always allows construction of finite durations, even for infinite Double inputs; use Duration.Inf instead.''''' * * Extractors, parsing and arithmetic are also included: - * <pre> + * {{{ * val d = Duration("1.2 µs") * val Duration(length, unit) = 5 millis * val d2 = d * 2.5 * val d3 = d2 + 1.millisecond - * </pre> + * }}} + * + * <h2>Handling of Time Units</h2> + * + * Calculations performed on finite durations always retain the more precise unit of either operand, no matter + * whether a coarser unit would be able to exactly express the same duration. This means that Duration can be + * used as a lossless container for a (length, unit) pair if it is constructed using the corresponding methods + * and no arithmetic is performed on it; adding/subtracting durations should in that case be done with care. + * + * <h2>Correspondence to Double Semantics</h2> + * + * The semantics of arithmetic operations on Duration are two-fold: + * + * - exact addition/subtraction with nanosecond resolution for finite durations, independent of the summands' magnitude + * - isomorphic to `java.lang.Double` when it comes to infinite or undefined values + * + * The conversion between Duration and Double is done using [[Duration.toUnit]] (with unit NANOSECONDS) + * and [[Duration$.fromNanos(Double):Duration Duration.fromNanos(Double)]]. + * + * <h2>Ordering</h2> + * + * The default ordering is consistent with the ordering of Double numbers, which means that Undefined is + * considered greater than all other durations, including [[Duration.Inf]]. + * + * @define exc @throws IllegalArgumentException when invoked on a non-finite duration + * + * @define ovf @throws IllegalArgumentException in case of a finite overflow: the range of a finite duration is +-(2^63-1)ns, and no conversion to infinite durations takes place. */ -abstract class Duration extends Serializable with Ordered[Duration] { +sealed abstract class Duration extends Serializable with Ordered[Duration] { + /** + * Obtain the length of this Duration measured in the unit obtained by the `unit` method. + * + * $exc + */ def length: Long + /** + * Obtain the time unit in which the length of this duration is measured. + * + * $exc + */ def unit: TimeUnit + /** + * Return the length of this duration measured in whole nanoseconds, rounding towards zero. + * + * $exc + */ def toNanos: Long + /** + * Return the length of this duration measured in whole microseconds, rounding towards zero. + * + * $exc + */ def toMicros: Long + /** + * Return the length of this duration measured in whole milliseconds, rounding towards zero. + * + * $exc + */ def toMillis: Long + /** + * Return the length of this duration measured in whole seconds, rounding towards zero. + * + * $exc + */ def toSeconds: Long + /** + * Return the length of this duration measured in whole minutes, rounding towards zero. + * + * $exc + */ def toMinutes: Long + /** + * Return the length of this duration measured in whole hours, rounding towards zero. + * + * $exc + */ def toHours: Long + /** + * Return the length of this duration measured in whole days, rounding towards zero. + * + * $exc + */ def toDays: Long + /** + * Return the number of nanoseconds as floating point number, scaled down to the given unit. + * The result may not precisely represent this duration due to the Double datatype's inherent + * limitations (mantissa size effectively 53 bits). Non-finite durations are represented as + * - [[Duration.Undefined]] is mapped to Double.NaN + * - [[Duration.Inf]] is mapped to Double.PositiveInfinity + * - [[Duration.MinusInf]] is mapped to Double.NegativeInfinity + */ def toUnit(unit: TimeUnit): Double + /** + * Return the sum of that duration and this. When involving non-finite summands the semantics match those + * of Double. + * + * $ovf + */ def +(other: Duration): Duration + /** + * Return the difference of that duration and this. When involving non-finite summands the semantics match those + * of Double. + * + * $ovf + */ def -(other: Duration): Duration + /** + * Return this duration multiplied by the scalar factor. When involving non-finite factors the semantics match those + * of Double. + * + * $ovf + */ def *(factor: Double): Duration + /** + * Return this duration divided by the scalar factor. When involving non-finite factors the semantics match those + * of Double. + * + * $ovf + */ def /(factor: Double): Duration + /** + * Return the quotient of this and that duration as floating-point number. The semantics are + * determined by Double as if calculating the quotient of the nanosecond lengths of both factors. + */ def /(other: Duration): Double + /** + * Negate this duration. The only two values which are mapped to themselves are [[Duration.Zero]] and [[Duration.Undefined]]. + */ def unary_- : Duration + /** + * This method returns whether this duration is finite, which is not the same as + * `!isInfinite` for Double because this method also returns `false` for [[Duration.Undefined]]. + */ def isFinite(): Boolean + /** + * Return the smaller of this and that duration as determined by the natural ordering. + */ def min(other: Duration): Duration = if (this < other) this else other + /** + * Return the larger of this and that duration as determined by the natural ordering. + */ def max(other: Duration): Duration = if (this > other) this else other - def fromNow: Deadline = Deadline.now + this // Java API + + /** + * Return this duration divided by the scalar factor. When involving non-finite factors the semantics match those + * of Double. + * + * $ovf + */ def div(factor: Double) = this / factor + /** + * Return the quotient of this and that duration as floating-point number. The semantics are + * determined by Double as if calculating the quotient of the nanosecond lengths of both factors. + */ def div(other: Duration) = this / other def gt(other: Duration) = this > other def gteq(other: Duration) = this >= other def lt(other: Duration) = this < other def lteq(other: Duration) = this <= other + /** + * Return the difference of that duration and this. When involving non-finite summands the semantics match those + * of Double. + * + * $ovf + */ def minus(other: Duration) = this - other + /** + * Return this duration multiplied by the scalar factor. When involving non-finite factors the semantics match those + * of Double. + * + * $ovf + */ def mul(factor: Double) = this * factor + /** + * Negate this duration. The only two values which are mapped to themselves are [[Duration.Zero]] and [[Duration.Undefined]]. + */ def neg() = -this + /** + * Return the sum of that duration and this. When involving non-finite summands the semantics match those + * of Double. + * + * $ovf + */ def plus(other: Duration) = this + other } @@ -268,11 +605,43 @@ object FiniteDuration { def apply(length: Long, unit: TimeUnit) = new FiniteDuration(length, unit) def apply(length: Long, unit: String) = new FiniteDuration(length, Duration.timeUnit(unit)) + + // limit on abs. value of durations in their units + private final val max_ns = Long.MaxValue + private final val max_µs = max_ns / 1000 + private final val max_ms = max_µs / 1000 + private final val max_s = max_ms / 1000 + private final val max_min= max_s / 60 + private final val max_h = max_min / 60 + private final val max_d = max_h / 24 } -class FiniteDuration(val length: Long, val unit: TimeUnit) extends Duration { +/** + * This class represents a finite duration. Its addition and subtraction operators are overloaded to retain + * this guarantee statically. The range of this class is limited to +-(2^63-1)ns, which is roughly 292 years. + */ +final class FiniteDuration(val length: Long, val unit: TimeUnit) extends Duration { + import FiniteDuration._ import Duration._ + private[this] def bounded(max: Long) = -max <= length && length <= max + + require(unit match { + /* + * enforce the 2^63-1 ns limit, must be pos/neg symmetrical because of unary_- + */ + case NANOSECONDS ⇒ bounded(max_ns) + case MICROSECONDS ⇒ bounded(max_µs) + case MILLISECONDS ⇒ bounded(max_ms) + case SECONDS ⇒ bounded(max_s) + case MINUTES ⇒ bounded(max_min) + case HOURS ⇒ bounded(max_h) + case DAYS ⇒ bounded(max_d) + case _ ⇒ + val v = DAYS.convert(length, unit) + -max_d <= v && v <= max_d + }, "Duration is limited to +-(2^63-1)ns (ca. 292 years)") + def toNanos = unit.toNanos(length) def toMicros = unit.toMicros(length) def toMillis = unit.toMillis(length) @@ -282,27 +651,68 @@ class FiniteDuration(val length: Long, val unit: TimeUnit) extends Duration { def toDays = unit.toDays(length) def toUnit(u: TimeUnit) = toNanos.toDouble / NANOSECONDS.convert(1, u) - private def unitString = timeUnitName(unit) + ( if (length == 1) "" else "s" ) + /** + * Construct a [[Deadline]] from this duration by adding it to the current instant `Deadline.now`. + */ + def fromNow: Deadline = Deadline.now + this + + private[this] def unitString = timeUnitName(unit) + ( if (length == 1) "" else "s" ) override def toString = "" + length + " " + unitString def compare(other: Duration) = other match { case x: FiniteDuration => toNanos compare x.toNanos case _ => -(other compare this) } + + // see https://www.securecoding.cert.org/confluence/display/java/NUM00-J.+Detect+or+prevent+integer+overflow + private[this] def safeAdd(a: Long, b: Long): Long = { + if ((b > 0) && (a > Long.MaxValue - b) || + (b < 0) && (a < Long.MinValue - b)) throw new IllegalArgumentException("integer overflow") + a + b + } + private[this] def add(otherLength: Long, otherUnit: TimeUnit): FiniteDuration = { + val commonUnit = if (otherUnit.convert(1, unit) == 0) unit else otherUnit + val totalLength = safeAdd(commonUnit.convert(length, unit), commonUnit.convert(otherLength, otherUnit)) + new FiniteDuration(totalLength, commonUnit) + } + def +(other: Duration) = other match { - case x: FiniteDuration => fromNanos(toNanos + x.toNanos) + case x: FiniteDuration => add(x.length, x.unit) case _ => other } def -(other: Duration) = other match { - case x: FiniteDuration => fromNanos(toNanos - x.toNanos) + case x: FiniteDuration => add(-x.length, x.unit) case _ => other } - def *(factor: Double) = fromNanos(toNanos.toDouble * factor) - - def /(factor: Double) = fromNanos(toNanos.toDouble / factor) - - def /(other: Duration) = if (other.isFinite) toNanos.toDouble / other.toNanos else 0 + def *(factor: Double) = + if (!factor.isInfinite) fromNanos(toNanos * factor) + else if (factor.isNaN) Undefined + else if ((factor > 0) ^ (this < Zero)) Inf + else MinusInf + + def /(factor: Double) = + if (!factor.isInfinite) fromNanos(toNanos / factor) + else if (factor.isNaN) Undefined + else Zero + + // if this is made a constant, then scalac will elide the conditional and always return +0.0, SI-6331 + private[this] def minusZero = -0d + def /(other: Duration): Double = + if (other.isFinite) toNanos.toDouble / other.toNanos + else if (other eq Undefined) Double.NaN + else if ((length < 0) ^ (other > Zero)) 0d + else minusZero + + // overridden methods taking FiniteDurations, so that you can calculate while statically staying finite + def +(other: FiniteDuration) = add(other.length, other.unit) + def -(other: FiniteDuration) = add(-other.length, other.unit) + def plus(other: FiniteDuration) = this + other + def minus(other: FiniteDuration) = this - other + override def div(factor: Double) = this / factor + override def mul(factor: Double) = this * factor + def min(other: FiniteDuration) = if (this < other) this else other + def max(other: FiniteDuration) = if (this > other) this else other def unary_- = Duration(-length, unit) @@ -383,5 +793,9 @@ final class DurationLong(val n: Long) extends AnyVal with DurationConversions { } final class DurationDouble(val d: Double) extends AnyVal with DurationConversions { - override protected def durationIn(unit: TimeUnit): FiniteDuration = Duration(d, unit) + override protected def durationIn(unit: TimeUnit): FiniteDuration = + Duration(d, unit) match { + case f: FiniteDuration => f + case _ => throw new IllegalArgumentException("Duration DSL not applicable to " + d) + } } diff --git a/src/library/scala/concurrent/util/duration/package.scala b/src/library/scala/concurrent/util/duration/package.scala index e3cf229c61..d5ae3f1544 100644 --- a/src/library/scala/concurrent/util/duration/package.scala +++ b/src/library/scala/concurrent/util/duration/package.scala @@ -1,7 +1,7 @@ package scala.concurrent.util import java.util.concurrent.TimeUnit -import language.implicitConversions +import scala.language.implicitConversions package object duration { diff --git a/src/library/scala/deprecated.scala b/src/library/scala/deprecated.scala index 111affc904..5ad61b811a 100644 --- a/src/library/scala/deprecated.scala +++ b/src/library/scala/deprecated.scala @@ -8,7 +8,7 @@ package scala -import annotation.meta._ +import scala.annotation.meta._ /** An annotation that designates that a definition is deprecated. * Access to the member then generates a deprecated warning. @@ -18,4 +18,4 @@ import annotation.meta._ * @since 2.3 */ @getter @setter @beanGetter @beanSetter -class deprecated(message: String = "", since: String = "") extends annotation.StaticAnnotation +class deprecated(message: String = "", since: String = "") extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/deprecatedInheritance.scala b/src/library/scala/deprecatedInheritance.scala new file mode 100644 index 0000000000..eb241d0d04 --- /dev/null +++ b/src/library/scala/deprecatedInheritance.scala @@ -0,0 +1,22 @@ +/* __ *\ +** ________ ___ / / ___ Scala API ** +** / __/ __// _ | / / / _ | (c) 2012, LAMP/EPFL ** +** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ ** +** /____/\___/_/ |_/____/_/ | | ** +** |/ ** +\* */ + +package scala + +/** An annotation that designates that inheriting from a class is deprecated. + * + * This is usually done to warn about a non-final class being made final in a future version. + * Sub-classing such a class then generates a warning. + * + * @param message the message to print during compilation if the class was sub-classed + * @param since a string identifying the first version in which inheritance was deprecated + * @since 2.10 + * @see [[scala.deprecatedOverriding]] + */ +private[scala] // for now, this needs to be generalized to communicate other modifier deltas +class deprecatedInheritance(message: String = "", since: String = "") extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/deprecatedName.scala b/src/library/scala/deprecatedName.scala index cc36be6775..07b35d1a61 100644 --- a/src/library/scala/deprecatedName.scala +++ b/src/library/scala/deprecatedName.scala @@ -8,7 +8,7 @@ package scala -import annotation.meta._ +import scala.annotation.meta._ /** * An annotation that designates the name of the parameter to which it is @@ -29,4 +29,4 @@ import annotation.meta._ * @since 2.8.1 */ @param -class deprecatedName(name: Symbol) extends annotation.StaticAnnotation +class deprecatedName(name: Symbol) extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/deprecatedOverriding.scala b/src/library/scala/deprecatedOverriding.scala new file mode 100644 index 0000000000..c9fd3af91b --- /dev/null +++ b/src/library/scala/deprecatedOverriding.scala @@ -0,0 +1,21 @@ +/* __ *\ +** ________ ___ / / ___ Scala API ** +** / __/ __// _ | / / / _ | (c) 2012, LAMP/EPFL ** +** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ ** +** /____/\___/_/ |_/____/_/ | | ** +** |/ ** +\* */ + +package scala + +/** An annotation that designates that overriding a member is deprecated. + * + * Overriding such a member in a sub-class then generates a warning. + * + * @param message the message to print during compilation if the member was overridden + * @param since a string identifying the first version in which overriding was deprecated + * @since 2.10 + * @see [[scala.deprecatedInheritance]] + */ +private[scala] // for the same reasons as deprecatedInheritance +class deprecatedOverriding(message: String = "", since: String = "") extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/inline.scala b/src/library/scala/inline.scala index a182fdf9ca..42ae28a347 100644 --- a/src/library/scala/inline.scala +++ b/src/library/scala/inline.scala @@ -17,4 +17,4 @@ package scala * @author Lex Spoon * @version 1.0, 2007-5-21 */ -class inline extends annotation.StaticAnnotation +class inline extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/io/Codec.scala b/src/library/scala/io/Codec.scala index 84cac88dcc..fa74be0f98 100644 --- a/src/library/scala/io/Codec.scala +++ b/src/library/scala/io/Codec.scala @@ -10,8 +10,8 @@ package scala.io import java.nio.charset.{ Charset, CharsetDecoder, CharsetEncoder, CharacterCodingException, CodingErrorAction => Action } -import annotation.migration -import language.implicitConversions +import scala.annotation.migration +import scala.language.implicitConversions // Some notes about encodings for use in refining this implementation. // diff --git a/src/library/scala/languageFeature.scala b/src/library/scala/languageFeature.scala index 39540b4f49..1f411c412a 100644 --- a/src/library/scala/languageFeature.scala +++ b/src/library/scala/languageFeature.scala @@ -1,6 +1,6 @@ package scala -import annotation.meta +import scala.annotation.meta object languageFeature { diff --git a/src/library/scala/math/BigDecimal.scala b/src/library/scala/math/BigDecimal.scala index 8669b2e2e8..eb73d58d1c 100644 --- a/src/library/scala/math/BigDecimal.scala +++ b/src/library/scala/math/BigDecimal.scala @@ -12,7 +12,7 @@ package scala.math import java.{ lang => jl } import java.math.{ MathContext, BigDecimal => BigDec } import scala.collection.immutable.NumericRange -import language.implicitConversions +import scala.language.implicitConversions /** @@ -159,6 +159,7 @@ object BigDecimal { * @author Stephane Micheloud * @version 1.0 */ +@deprecatedInheritance("This class will me made final.", "2.10.0") class BigDecimal( val bigDecimal: BigDec, val mc: MathContext) diff --git a/src/library/scala/math/BigInt.scala b/src/library/scala/math/BigInt.scala index 09e8ae2026..3eb41053f7 100644 --- a/src/library/scala/math/BigInt.scala +++ b/src/library/scala/math/BigInt.scala @@ -9,7 +9,7 @@ package scala.math import java.math.BigInteger -import language.implicitConversions +import scala.language.implicitConversions /** * @author Martin Odersky @@ -114,6 +114,7 @@ object BigInt { * @author Martin Odersky * @version 1.0, 15/07/2003 */ +@deprecatedInheritance("This class will me made final.", "2.10.0") class BigInt(val bigInteger: BigInteger) extends ScalaNumber with ScalaNumericConversions with Serializable { /** Returns the hash code for this BigInt. */ override def hashCode(): Int = diff --git a/src/library/scala/math/Fractional.scala b/src/library/scala/math/Fractional.scala index 0686569c16..98fd325980 100644 --- a/src/library/scala/math/Fractional.scala +++ b/src/library/scala/math/Fractional.scala @@ -8,7 +8,7 @@ package scala.math -import language.implicitConversions +import scala.language.implicitConversions /** * @since 2.8 @@ -28,4 +28,4 @@ object Fractional { implicit def infixFractionalOps[T](x: T)(implicit num: Fractional[T]): Fractional[T]#FractionalOps = new num.FractionalOps(x) } object Implicits extends ExtraImplicits -}
\ No newline at end of file +} diff --git a/src/library/scala/math/Integral.scala b/src/library/scala/math/Integral.scala index 4b4de28228..e5bfc8f687 100644 --- a/src/library/scala/math/Integral.scala +++ b/src/library/scala/math/Integral.scala @@ -10,7 +10,7 @@ package scala.math -import language.implicitConversions +import scala.language.implicitConversions /** * @since 2.8 @@ -36,4 +36,4 @@ object Integral { implicit def infixIntegralOps[T](x: T)(implicit num: Integral[T]): Integral[T]#IntegralOps = new num.IntegralOps(x) } object Implicits extends ExtraImplicits -}
\ No newline at end of file +} diff --git a/src/library/scala/math/Numeric.scala b/src/library/scala/math/Numeric.scala index ee62706e49..4428d9c249 100644 --- a/src/library/scala/math/Numeric.scala +++ b/src/library/scala/math/Numeric.scala @@ -8,7 +8,7 @@ package scala.math -import language.implicitConversions +import scala.language.implicitConversions /** * @since 2.8 diff --git a/src/library/scala/math/Ordered.scala b/src/library/scala/math/Ordered.scala index a5efa41b80..53b3ae81cb 100644 --- a/src/library/scala/math/Ordered.scala +++ b/src/library/scala/math/Ordered.scala @@ -8,7 +8,7 @@ package scala.math -import language.implicitConversions +import scala.language.implicitConversions /** A trait for data that have a single, natural ordering. See * [[scala.math.Ordering]] before using this trait for diff --git a/src/library/scala/math/Ordering.scala b/src/library/scala/math/Ordering.scala index 9020bb9edd..3ac255b57f 100644 --- a/src/library/scala/math/Ordering.scala +++ b/src/library/scala/math/Ordering.scala @@ -9,7 +9,7 @@ package scala.math import java.util.Comparator -import language.{implicitConversions, higherKinds} +import scala.language.{implicitConversions, higherKinds} /** Ordering is a trait whose instances each represent a strategy for sorting * instances of a type. @@ -165,7 +165,7 @@ object Ordering extends LowPriorityOrderingImplicits { /** Not in the standard scope due to the potential for divergence: * For instance `implicitly[Ordering[Any]]` diverges in its presence. */ - implicit def seqDerivedOrdering[CC[X] <: collection.Seq[X], T](implicit ord: Ordering[T]): Ordering[CC[T]] = + implicit def seqDerivedOrdering[CC[X] <: scala.collection.Seq[X], T](implicit ord: Ordering[T]): Ordering[CC[T]] = new Ordering[CC[T]] { def compare(x: CC[T], y: CC[T]): Int = { val xe = x.iterator diff --git a/src/library/scala/native.scala b/src/library/scala/native.scala index 28bb9f70fd..798af3a5da 100644 --- a/src/library/scala/native.scala +++ b/src/library/scala/native.scala @@ -20,4 +20,4 @@ package scala * but it is type checked when present. * * @since 2.6 */ -class native extends annotation.StaticAnnotation {} +class native extends scala.annotation.StaticAnnotation {} diff --git a/src/library/scala/noinline.scala b/src/library/scala/noinline.scala index de650ed209..7cb9b3d53c 100644 --- a/src/library/scala/noinline.scala +++ b/src/library/scala/noinline.scala @@ -18,4 +18,4 @@ package scala * @version 1.0, 2007-5-21 * @since 2.5 */ -class noinline extends annotation.StaticAnnotation +class noinline extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/reflect/ClassTag.scala b/src/library/scala/reflect/ClassTag.scala index 5255c44f10..6757a72053 100644 --- a/src/library/scala/reflect/ClassTag.scala +++ b/src/library/scala/reflect/ClassTag.scala @@ -1,8 +1,8 @@ package scala.reflect import java.lang.{ Class => jClass } -import language.{implicitConversions, existentials} -import scala.runtime.ScalaRunTime.arrayClass +import scala.language.{implicitConversions, existentials} +import scala.runtime.ScalaRunTime.{ arrayClass, arrayElementClass } /** A `ClassTag[T]` wraps a runtime class, which can be accessed via the `runtimeClass` method. * @@ -54,35 +54,59 @@ trait ClassTag[T] extends ClassManifestDeprecatedApis[T] with Equals with Serial * `SomeExtractor(...)` is turned into `ct(SomeExtractor(...))` if `T` in `SomeExtractor.unapply(x: T)` * is uncheckable, but we have an instance of `ClassTag[T]`. */ - def unapply(x: Any): Option[T] = if (x != null && runtimeClass.isAssignableFrom(x.getClass)) Some(x.asInstanceOf[T]) else None + def unapply(x: Any): Option[T] = unapply_impl(x) + def unapply(x: Byte): Option[T] = unapply_impl(x) + def unapply(x: Short): Option[T] = unapply_impl(x) + def unapply(x: Char): Option[T] = unapply_impl(x) + def unapply(x: Int): Option[T] = unapply_impl(x) + def unapply(x: Long): Option[T] = unapply_impl(x) + def unapply(x: Float): Option[T] = unapply_impl(x) + def unapply(x: Double): Option[T] = unapply_impl(x) + def unapply(x: Boolean): Option[T] = unapply_impl(x) + def unapply(x: Unit): Option[T] = unapply_impl(x) + + private def unapply_impl[U: ClassTag](x: U): Option[T] = + if (x == null) None + else { + val staticClass = classTag[U].runtimeClass + val dynamicClass = x.getClass + val effectiveClass = if (staticClass.isPrimitive) staticClass else dynamicClass + val conforms = runtimeClass.isAssignableFrom(effectiveClass) + if (conforms) Some(x.asInstanceOf[T]) else None + } /** case class accessories */ override def canEqual(x: Any) = x.isInstanceOf[ClassTag[_]] override def equals(x: Any) = x.isInstanceOf[ClassTag[_]] && this.runtimeClass == x.asInstanceOf[ClassTag[_]].runtimeClass override def hashCode = scala.runtime.ScalaRunTime.hash(runtimeClass) - override def toString = "ClassTag[" + runtimeClass + "]" + override def toString = { + def prettyprint(clazz: jClass[_]): String = + if (clazz.isArray) s"Array[${prettyprint(arrayElementClass(clazz))}]" else + clazz.getName + prettyprint(runtimeClass) + } } object ClassTag { + private val ObjectTYPE = classOf[java.lang.Object] private val NothingTYPE = classOf[scala.runtime.Nothing$] private val NullTYPE = classOf[scala.runtime.Null$] - private val ObjectTYPE = classOf[java.lang.Object] - val Byte : ClassTag[scala.Byte] = new ClassTag[scala.Byte]{ def runtimeClass = java.lang.Byte.TYPE; private def readResolve() = ClassTag.Byte } - val Short : ClassTag[scala.Short] = new ClassTag[scala.Short]{ def runtimeClass = java.lang.Short.TYPE; private def readResolve() = ClassTag.Short } - val Char : ClassTag[scala.Char] = new ClassTag[scala.Char]{ def runtimeClass = java.lang.Character.TYPE; private def readResolve() = ClassTag.Char } - val Int : ClassTag[scala.Int] = new ClassTag[scala.Int]{ def runtimeClass = java.lang.Integer.TYPE; private def readResolve() = ClassTag.Int } - val Long : ClassTag[scala.Long] = new ClassTag[scala.Long]{ def runtimeClass = java.lang.Long.TYPE; private def readResolve() = ClassTag.Long } - val Float : ClassTag[scala.Float] = new ClassTag[scala.Float]{ def runtimeClass = java.lang.Float.TYPE; private def readResolve() = ClassTag.Float } - val Double : ClassTag[scala.Double] = new ClassTag[scala.Double]{ def runtimeClass = java.lang.Double.TYPE; private def readResolve() = ClassTag.Double } - val Boolean : ClassTag[scala.Boolean] = new ClassTag[scala.Boolean]{ def runtimeClass = java.lang.Boolean.TYPE; private def readResolve() = ClassTag.Boolean } - val Unit : ClassTag[scala.Unit] = new ClassTag[scala.Unit]{ def runtimeClass = java.lang.Void.TYPE; private def readResolve() = ClassTag.Unit } - val Any : ClassTag[scala.Any] = new ClassTag[scala.Any]{ def runtimeClass = ObjectTYPE; private def readResolve() = ClassTag.Any } - val Object : ClassTag[java.lang.Object] = new ClassTag[java.lang.Object]{ def runtimeClass = ObjectTYPE; private def readResolve() = ClassTag.Object } - val AnyVal : ClassTag[scala.AnyVal] = ClassTag.Object.asInstanceOf[ClassTag[scala.AnyVal]] - val AnyRef : ClassTag[scala.AnyRef] = ClassTag.Object.asInstanceOf[ClassTag[scala.AnyRef]] - val Nothing : ClassTag[scala.Nothing] = new ClassTag[scala.Nothing]{ def runtimeClass = NothingTYPE; private def readResolve() = ClassTag.Nothing } - val Null : ClassTag[scala.Null] = new ClassTag[scala.Null]{ def runtimeClass = NullTYPE; private def readResolve() = ClassTag.Null } + val Byte : ClassTag[scala.Byte] = Manifest.Byte + val Short : ClassTag[scala.Short] = Manifest.Short + val Char : ClassTag[scala.Char] = Manifest.Char + val Int : ClassTag[scala.Int] = Manifest.Int + val Long : ClassTag[scala.Long] = Manifest.Long + val Float : ClassTag[scala.Float] = Manifest.Float + val Double : ClassTag[scala.Double] = Manifest.Double + val Boolean : ClassTag[scala.Boolean] = Manifest.Boolean + val Unit : ClassTag[scala.Unit] = Manifest.Unit + val Any : ClassTag[scala.Any] = Manifest.Any + val Object : ClassTag[java.lang.Object] = Manifest.Object + val AnyVal : ClassTag[scala.AnyVal] = Manifest.AnyVal + val AnyRef : ClassTag[scala.AnyRef] = Manifest.AnyRef + val Nothing : ClassTag[scala.Nothing] = Manifest.Nothing + val Null : ClassTag[scala.Null] = Manifest.Null def apply[T](runtimeClass1: jClass[_]): ClassTag[T] = runtimeClass1 match { @@ -96,8 +120,10 @@ object ClassTag { case java.lang.Boolean.TYPE => ClassTag.Boolean.asInstanceOf[ClassTag[T]] case java.lang.Void.TYPE => ClassTag.Unit.asInstanceOf[ClassTag[T]] case ObjectTYPE => ClassTag.Object.asInstanceOf[ClassTag[T]] + case NothingTYPE => ClassTag.Nothing.asInstanceOf[ClassTag[T]] + case NullTYPE => ClassTag.Null.asInstanceOf[ClassTag[T]] case _ => new ClassTag[T]{ def runtimeClass = runtimeClass1 } } def unapply[T](ctag: ClassTag[T]): Option[Class[_]] = Some(ctag.runtimeClass) -}
\ No newline at end of file +} diff --git a/src/library/scala/reflect/Manifest.scala b/src/library/scala/reflect/Manifest.scala index 9347f5b6bb..f2a23f4372 100644 --- a/src/library/scala/reflect/Manifest.scala +++ b/src/library/scala/reflect/Manifest.scala @@ -155,28 +155,34 @@ object ManifestFactory { private def readResolve(): Any = Manifest.Unit } - val Any: Manifest[scala.Any] = new PhantomManifest[scala.Any]("Any") { + private val ObjectTYPE = classOf[java.lang.Object] + private val NothingTYPE = classOf[scala.runtime.Nothing$] + private val NullTYPE = classOf[scala.runtime.Null$] + + val Any: Manifest[scala.Any] = new PhantomManifest[scala.Any](ObjectTYPE, "Any") { override def <:<(that: ClassManifest[_]): Boolean = (that eq this) private def readResolve(): Any = Manifest.Any } - val Object: Manifest[java.lang.Object] = new PhantomManifest[java.lang.Object]("Object") { + val Object: Manifest[java.lang.Object] = new PhantomManifest[java.lang.Object](ObjectTYPE, "Object") { override def <:<(that: ClassManifest[_]): Boolean = (that eq this) || (that eq Any) private def readResolve(): Any = Manifest.Object } - val AnyVal: Manifest[scala.AnyVal] = new PhantomManifest[scala.AnyVal]("AnyVal") { + val AnyRef: Manifest[scala.AnyRef] = Object.asInstanceOf[Manifest[scala.AnyRef]] + + val AnyVal: Manifest[scala.AnyVal] = new PhantomManifest[scala.AnyVal](ObjectTYPE, "AnyVal") { override def <:<(that: ClassManifest[_]): Boolean = (that eq this) || (that eq Any) private def readResolve(): Any = Manifest.AnyVal } - val Null: Manifest[scala.Null] = new PhantomManifest[scala.Null]("Null") { + val Null: Manifest[scala.Null] = new PhantomManifest[scala.Null](NullTYPE, "Null") { override def <:<(that: ClassManifest[_]): Boolean = (that ne null) && (that ne Nothing) && !(that <:< AnyVal) private def readResolve(): Any = Manifest.Null } - val Nothing: Manifest[scala.Nothing] = new PhantomManifest[scala.Nothing]("Nothing") { + val Nothing: Manifest[scala.Nothing] = new PhantomManifest[scala.Nothing](NothingTYPE, "Nothing") { override def <:<(that: ClassManifest[_]): Boolean = (that ne null) private def readResolve(): Any = Manifest.Nothing } @@ -211,7 +217,8 @@ object ManifestFactory { def classType[T](prefix: Manifest[_], clazz: Predef.Class[_], args: Manifest[_]*): Manifest[T] = new ClassTypeManifest[T](Some(prefix), clazz, args.toList) - private abstract class PhantomManifest[T](override val toString: String) extends ClassTypeManifest[T](None, classOf[java.lang.Object], Nil) { + private abstract class PhantomManifest[T](_runtimeClass: Predef.Class[_], + override val toString: String) extends ClassTypeManifest[T](None, _runtimeClass, Nil) { override def equals(that: Any): Boolean = this eq that.asInstanceOf[AnyRef] override val hashCode = System.identityHashCode(this) } diff --git a/src/library/scala/reflect/base/Base.scala b/src/library/scala/reflect/base/Base.scala index 28ebdf4377..33582675bd 100644 --- a/src/library/scala/reflect/base/Base.scala +++ b/src/library/scala/reflect/base/Base.scala @@ -4,7 +4,7 @@ package base import java.io.PrintWriter import scala.annotation.switch import scala.ref.WeakReference -import collection.mutable +import scala.collection.mutable class Base extends Universe { self => @@ -36,10 +36,10 @@ class Base extends Universe { self => def newClassSymbol(name: TypeName, pos: Position = NoPosition, flags: FlagSet = NoFlags): ClassSymbol = new ClassSymbol(this, name, flags) - def newFreeTermSymbol(name: TermName, info: Type, value: => Any, flags: FlagSet = NoFlags, origin: String = null) = + def newFreeTermSymbol(name: TermName, value: => Any, flags: FlagSet = NoFlags, origin: String = null) = new FreeTermSymbol(this, name, flags) - def newFreeTypeSymbol(name: TypeName, info: Type, value: => Any, flags: FlagSet = NoFlags, origin: String = null) = + def newFreeTypeSymbol(name: TypeName, flags: FlagSet = NoFlags, origin: String = null) = new FreeTypeSymbol(this, name, flags) private def kindString: String = @@ -311,13 +311,10 @@ class Base extends Universe { self => else new TypeSymbol(owner, name.toTypeName, flags) else new TermSymbol(owner, name.toTermName, flags) - def newFreeTerm(name: String, info: Type, value: => Any, flags: Long = 0L, origin: String = null): FreeTermSymbol = + def newFreeTerm(name: String, value: => Any, flags: Long = 0L, origin: String = null): FreeTermSymbol = new FreeTermSymbol(rootMirror.RootClass, newTermName(name), flags) - def newFreeType(name: String, info: Type, value: => Any, flags: Long = 0L, origin: String = null): FreeTypeSymbol = - new FreeTypeSymbol(rootMirror.RootClass, newTypeName(name), flags) - - def newFreeExistential(name: String, info: Type, value: => Any, flags: Long = 0L, origin: String = null): FreeTypeSymbol = + def newFreeType(name: String, flags: Long = 0L, origin: String = null): FreeTypeSymbol = new FreeTypeSymbol(rootMirror.RootClass, newTypeName(name), flags) def setTypeSignature[S <: Symbol](sym: S, tpe: Type): S = sym diff --git a/src/library/scala/reflect/base/BuildUtils.scala b/src/library/scala/reflect/base/BuildUtils.scala index 98f32231ad..c4231dd515 100644 --- a/src/library/scala/reflect/base/BuildUtils.scala +++ b/src/library/scala/reflect/base/BuildUtils.scala @@ -29,36 +29,18 @@ trait BuildUtils { self: Universe => /** Create a fresh free term symbol. * @param name the name of the free variable - * @param info the type signature of the free variable * @param value the value of the free variable at runtime * @param flags (optional) flags of the free variable * @param origin debug information that tells where this symbol comes from */ - def newFreeTerm(name: String, info: Type, value: => Any, flags: FlagSet = NoFlags, origin: String = null): FreeTermSymbol + def newFreeTerm(name: String, value: => Any, flags: FlagSet = NoFlags, origin: String = null): FreeTermSymbol - /** Create a fresh free non-existential type symbol. + /** Create a fresh free type symbol. * @param name the name of the free variable - * @param info the type signature of the free variable - * @param value a type tag that captures the value of the free variable - * is completely phantom, since the captured type cannot be propagated to the runtime - * if it could be, we wouldn't be creating a free type to begin with - * the only usage for it is preserving the captured symbol for compile-time analysis * @param flags (optional) flags of the free variable * @param origin debug information that tells where this symbol comes from */ - def newFreeType(name: String, info: Type, value: => Any, flags: FlagSet = NoFlags, origin: String = null): FreeTypeSymbol - - /** Create a fresh free existential type symbol. - * @param name the name of the free variable - * @param info the type signature of the free variable - * @param value a type tag that captures the value of the free variable - * is completely phantom, since the captured type cannot be propagated to the runtime - * if it could be, we wouldn't be creating a free type to begin with - * the only usage for it is preserving the captured symbol for compile-time analysis - * @param flags (optional) flags of the free variable - * @param origin (optional) debug information that tells where this symbol comes from - */ - def newFreeExistential(name: String, info: Type, value: => Any, flags: FlagSet = NoFlags, origin: String = null): FreeTypeSymbol + def newFreeType(name: String, flags: FlagSet = NoFlags, origin: String = null): FreeTypeSymbol /** Set symbol's type signature to given type. * @return the symbol itself diff --git a/src/library/scala/reflect/base/Exprs.scala b/src/library/scala/reflect/base/Exprs.scala index 10c222722a..45598c03e2 100644 --- a/src/library/scala/reflect/base/Exprs.scala +++ b/src/library/scala/reflect/base/Exprs.scala @@ -28,19 +28,19 @@ trait Exprs { self: Universe => } object Expr { - def apply[T: AbsTypeTag](mirror: MirrorOf[self.type], treec: TreeCreator): Expr[T] = new ExprImpl[T](mirror.asInstanceOf[Mirror], treec) + def apply[T: WeakTypeTag](mirror: MirrorOf[self.type], treec: TreeCreator): Expr[T] = new ExprImpl[T](mirror.asInstanceOf[Mirror], treec) def unapply[T](expr: Expr[T]): Option[Tree] = Some(expr.tree) } - private class ExprImpl[+T: AbsTypeTag](val mirror: Mirror, val treec: TreeCreator) extends Expr[T] { + private class ExprImpl[+T: WeakTypeTag](val mirror: Mirror, val treec: TreeCreator) extends Expr[T] { def in[U <: Universe with Singleton](otherMirror: MirrorOf[U]): U # Expr[T] = { val otherMirror1 = otherMirror.asInstanceOf[MirrorOf[otherMirror.universe.type]] - val tag1 = (implicitly[AbsTypeTag[T]] in otherMirror).asInstanceOf[otherMirror.universe.AbsTypeTag[T]] + val tag1 = (implicitly[WeakTypeTag[T]] in otherMirror).asInstanceOf[otherMirror.universe.WeakTypeTag[T]] otherMirror.universe.Expr[T](otherMirror1, treec)(tag1) } lazy val tree: Tree = treec(mirror) - lazy val staticType: Type = implicitly[AbsTypeTag[T]].tpe + lazy val staticType: Type = implicitly[WeakTypeTag[T]].tpe def actualType: Type = treeType(tree) def splice: T = throw new UnsupportedOperationException(""" @@ -54,11 +54,11 @@ trait Exprs { self: Universe => |if you want to get a value of the underlying expression, add scala-compiler.jar to the classpath, |import `scala.tools.reflect.Eval` and call `<your expr>.eval` instead.""".trim.stripMargin) - private def writeReplace(): AnyRef = new SerializedExpr(treec, implicitly[AbsTypeTag[T]].in(scala.reflect.basis.rootMirror)) + private def writeReplace(): AnyRef = new SerializedExpr(treec, implicitly[WeakTypeTag[T]].in(scala.reflect.basis.rootMirror)) } } -private[scala] class SerializedExpr(var treec: TreeCreator, var tag: scala.reflect.basis.AbsTypeTag[_]) extends Serializable { +private[scala] class SerializedExpr(var treec: TreeCreator, var tag: scala.reflect.basis.WeakTypeTag[_]) extends Serializable { private def writeObject(out: java.io.ObjectOutputStream): Unit = { out.writeObject(treec) out.writeObject(tag) @@ -66,7 +66,7 @@ private[scala] class SerializedExpr(var treec: TreeCreator, var tag: scala.refle private def readObject(in: java.io.ObjectInputStream): Unit = { treec = in.readObject().asInstanceOf[TreeCreator] - tag = in.readObject().asInstanceOf[scala.reflect.basis.AbsTypeTag[_]] + tag = in.readObject().asInstanceOf[scala.reflect.basis.WeakTypeTag[_]] } private def readResolve(): AnyRef = { diff --git a/src/library/scala/reflect/base/Names.scala b/src/library/scala/reflect/base/Names.scala index 532b780e7e..ad99f54fb3 100644 --- a/src/library/scala/reflect/base/Names.scala +++ b/src/library/scala/reflect/base/Names.scala @@ -1,7 +1,7 @@ package scala.reflect package base -import language.implicitConversions +import scala.language.implicitConversions /** A trait that manages names. * A name is a string in one of two name universes: terms and types. diff --git a/src/library/scala/reflect/base/TypeTags.scala b/src/library/scala/reflect/base/TypeTags.scala index b7e0c37a4b..ec86bbc9be 100644 --- a/src/library/scala/reflect/base/TypeTags.scala +++ b/src/library/scala/reflect/base/TypeTags.scala @@ -7,7 +7,7 @@ package scala.reflect package base import java.lang.{ Class => jClass } -import language.implicitConversions +import scala.language.implicitConversions /** * Type tags encapsulate a representation of type T. @@ -17,15 +17,15 @@ import language.implicitConversions * === Overview === * * Type tags are organized in a hierarchy of three classes: - * [[scala.reflect.ClassTag]], [[scala.reflect.base.Universe#TypeTag]] and [[scala.reflect.base.Universe#AbsTypeTag]]. + * [[scala.reflect.ClassTag]], [[scala.reflect.base.Universe#TypeTag]] and [[scala.reflect.base.Universe#WeakTypeTag]]. * * A [[scala.reflect.ClassTag]] carries a runtime class that corresponds to the source type T. * As of such, it possesses the knowledge about how to build single- and multi-dimensional arrays of elements of that type. * It guarantees that the source type T did not to contain any references to type parameters or abstract types. * [[scala.reflect.ClassTag]] corresponds to a previous notion of [[scala.reflect.ClassManifest]]. * - * A [[scala.reflect.base.Universe#AbsTypeTag]] value wraps a full Scala type in its tpe field. - * A [[scala.reflect.base.Universe#TypeTag]] value is an [[scala.reflect.base.Universe#AbsTypeTag]] + * A [[scala.reflect.base.Universe#WeakTypeTag]] value wraps a full Scala type in its tpe field. + * A [[scala.reflect.base.Universe#TypeTag]] value is an [[scala.reflect.base.Universe#WeakTypeTag]] * that is guaranteed not to contain any references to type parameters or abstract types. * * [Eugene++] also mention sensitivity to prefixes, i.e. that rb.TypeTag is different from ru.TypeTag @@ -40,36 +40,36 @@ import language.implicitConversions * import reflect.mirror._ * def f[T: TypeTag, U] = { * type L = T => U - * implicitly[AbsTypeTag[L]] + * implicitly[WeakTypeTag[L]] * } * * Then a call of f[String, Int] will yield a result of the form * - * AbsTypeTag(<[ String => U ]>). + * WeakTypeTag(<[ String => U ]>). * * Note that T has been replaced by String, because it comes with a TypeTag in f, whereas U was left as a type parameter. * - * === AbsTypeTag vs TypeTag === + * === WeakTypeTag vs TypeTag === * - * Be careful with AbsTypeTag, because it will reify types even if these types are abstract. + * Be careful with WeakTypeTag, because it will reify types even if these types are abstract. * This makes it easy to forget to tag one of the methods in the call chain and discover it much later in the runtime * by getting cryptic errors far away from their source. For example, consider the following snippet: * - * def bind[T: AbsTypeTag](name: String, value: T): IR.Result = bind((name, value)) - * def bind(p: NamedParam): IR.Result = bind(p.name, p.tpe, p.value) + * def bind[T: WeakTypeTag](name: String, value: T): IR.Result = bind((name, value)) + * def bind(p: NamedParam): IR.Result = bind(p.name, p.tpe, p.value) * object NamedParam { - * implicit def namedValue[T: AbsTypeTag](name: String, x: T): NamedParam = apply(name, x) - * def apply[T: AbsTypeTag](name: String, x: T): NamedParam = new Typed[T](name, x) + * implicit def namedValue[T: WeakTypeTag](name: String, x: T): NamedParam = apply(name, x) + * def apply[T: WeakTypeTag](name: String, x: T): NamedParam = new Typed[T](name, x) * } * * This fragment of Scala REPL implementation defines a `bind` function that carries a named value along with its type - * into the heart of the REPL. Using a [[scala.reflect.base.Universe#AbsTypeTag]] here is reasonable, because it is desirable + * into the heart of the REPL. Using a [[scala.reflect.base.Universe#WeakTypeTag]] here is reasonable, because it is desirable * to work with all types, even if they are type parameters or abstract type members. * - * However if any of the three `AbsTypeTag` context bounds is omitted, the resulting code will be incorrect, - * because the missing `AbsTypeTag` will be transparently generated by the compiler, carrying meaningless information. + * However if any of the three `WeakTypeTag` context bounds is omitted, the resulting code will be incorrect, + * because the missing `WeakTypeTag` will be transparently generated by the compiler, carrying meaningless information. * Most likely, this problem will manifest itself elsewhere, making debugging complicated. - * If `AbsTypeTag` context bounds were replaced with `TypeTag`, then such errors would be reported statically. + * If `WeakTypeTag` context bounds were replaced with `TypeTag`, then such errors would be reported statically. * But in that case we wouldn't be able to use `bind` in arbitrary contexts. * * === Backward compatibility === @@ -104,71 +104,71 @@ trait TypeTags { self: Universe => import definitions._ /** - * If an implicit value of type u.AbsTypeTag[T] is required, the compiler will make one up on demand. + * If an implicit value of type u.WeakTypeTag[T] is required, the compiler will make one up on demand. * The implicitly created value contains in its tpe field a value of type u.Type that is a reflective representation of T. * In that value, any occurrences of type parameters or abstract types U * which come themselves with a TypeTag are represented by the type referenced by that TypeTag. * * @see [[scala.reflect.base.TypeTags]] */ - @annotation.implicitNotFound(msg = "No AbsTypeTag available for ${T}") - trait AbsTypeTag[T] extends Equals with Serializable { + @annotation.implicitNotFound(msg = "No WeakTypeTag available for ${T}") + trait WeakTypeTag[T] extends Equals with Serializable { val mirror: Mirror - def in[U <: Universe with Singleton](otherMirror: MirrorOf[U]): U # AbsTypeTag[T] + def in[U <: Universe with Singleton](otherMirror: MirrorOf[U]): U # WeakTypeTag[T] def tpe: Type /** case class accessories */ - override def canEqual(x: Any) = x.isInstanceOf[AbsTypeTag[_]] - override def equals(x: Any) = x.isInstanceOf[AbsTypeTag[_]] && this.mirror == x.asInstanceOf[AbsTypeTag[_]].mirror && this.tpe == x.asInstanceOf[AbsTypeTag[_]].tpe + override def canEqual(x: Any) = x.isInstanceOf[WeakTypeTag[_]] + override def equals(x: Any) = x.isInstanceOf[WeakTypeTag[_]] && this.mirror == x.asInstanceOf[WeakTypeTag[_]].mirror && this.tpe == x.asInstanceOf[WeakTypeTag[_]].tpe override def hashCode = mirror.hashCode * 31 + tpe.hashCode - override def toString = "AbsTypeTag[" + tpe + "]" + override def toString = "WeakTypeTag[" + tpe + "]" } - object AbsTypeTag { - val Byte : AbsTypeTag[scala.Byte] = TypeTag.Byte - val Short : AbsTypeTag[scala.Short] = TypeTag.Short - val Char : AbsTypeTag[scala.Char] = TypeTag.Char - val Int : AbsTypeTag[scala.Int] = TypeTag.Int - val Long : AbsTypeTag[scala.Long] = TypeTag.Long - val Float : AbsTypeTag[scala.Float] = TypeTag.Float - val Double : AbsTypeTag[scala.Double] = TypeTag.Double - val Boolean : AbsTypeTag[scala.Boolean] = TypeTag.Boolean - val Unit : AbsTypeTag[scala.Unit] = TypeTag.Unit - val Any : AbsTypeTag[scala.Any] = TypeTag.Any - val AnyVal : AbsTypeTag[scala.AnyVal] = TypeTag.AnyVal - val AnyRef : AbsTypeTag[scala.AnyRef] = TypeTag.AnyRef - val Object : AbsTypeTag[java.lang.Object] = TypeTag.Object - val Nothing : AbsTypeTag[scala.Nothing] = TypeTag.Nothing - val Null : AbsTypeTag[scala.Null] = TypeTag.Null + object WeakTypeTag { + val Byte : WeakTypeTag[scala.Byte] = TypeTag.Byte + val Short : WeakTypeTag[scala.Short] = TypeTag.Short + val Char : WeakTypeTag[scala.Char] = TypeTag.Char + val Int : WeakTypeTag[scala.Int] = TypeTag.Int + val Long : WeakTypeTag[scala.Long] = TypeTag.Long + val Float : WeakTypeTag[scala.Float] = TypeTag.Float + val Double : WeakTypeTag[scala.Double] = TypeTag.Double + val Boolean : WeakTypeTag[scala.Boolean] = TypeTag.Boolean + val Unit : WeakTypeTag[scala.Unit] = TypeTag.Unit + val Any : WeakTypeTag[scala.Any] = TypeTag.Any + val AnyVal : WeakTypeTag[scala.AnyVal] = TypeTag.AnyVal + val AnyRef : WeakTypeTag[scala.AnyRef] = TypeTag.AnyRef + val Object : WeakTypeTag[java.lang.Object] = TypeTag.Object + val Nothing : WeakTypeTag[scala.Nothing] = TypeTag.Nothing + val Null : WeakTypeTag[scala.Null] = TypeTag.Null - def apply[T](mirror1: MirrorOf[self.type], tpec1: TypeCreator): AbsTypeTag[T] = + def apply[T](mirror1: MirrorOf[self.type], tpec1: TypeCreator): WeakTypeTag[T] = tpec1(mirror1) match { - case ByteTpe => AbsTypeTag.Byte.asInstanceOf[AbsTypeTag[T]] - case ShortTpe => AbsTypeTag.Short.asInstanceOf[AbsTypeTag[T]] - case CharTpe => AbsTypeTag.Char.asInstanceOf[AbsTypeTag[T]] - case IntTpe => AbsTypeTag.Int.asInstanceOf[AbsTypeTag[T]] - case LongTpe => AbsTypeTag.Long.asInstanceOf[AbsTypeTag[T]] - case FloatTpe => AbsTypeTag.Float.asInstanceOf[AbsTypeTag[T]] - case DoubleTpe => AbsTypeTag.Double.asInstanceOf[AbsTypeTag[T]] - case BooleanTpe => AbsTypeTag.Boolean.asInstanceOf[AbsTypeTag[T]] - case UnitTpe => AbsTypeTag.Unit.asInstanceOf[AbsTypeTag[T]] - case AnyTpe => AbsTypeTag.Any.asInstanceOf[AbsTypeTag[T]] - case AnyValTpe => AbsTypeTag.AnyVal.asInstanceOf[AbsTypeTag[T]] - case AnyRefTpe => AbsTypeTag.AnyRef.asInstanceOf[AbsTypeTag[T]] - case ObjectTpe => AbsTypeTag.Object.asInstanceOf[AbsTypeTag[T]] - case NothingTpe => AbsTypeTag.Nothing.asInstanceOf[AbsTypeTag[T]] - case NullTpe => AbsTypeTag.Null.asInstanceOf[AbsTypeTag[T]] - case _ => new AbsTypeTagImpl[T](mirror1.asInstanceOf[Mirror], tpec1) + case ByteTpe => WeakTypeTag.Byte.asInstanceOf[WeakTypeTag[T]] + case ShortTpe => WeakTypeTag.Short.asInstanceOf[WeakTypeTag[T]] + case CharTpe => WeakTypeTag.Char.asInstanceOf[WeakTypeTag[T]] + case IntTpe => WeakTypeTag.Int.asInstanceOf[WeakTypeTag[T]] + case LongTpe => WeakTypeTag.Long.asInstanceOf[WeakTypeTag[T]] + case FloatTpe => WeakTypeTag.Float.asInstanceOf[WeakTypeTag[T]] + case DoubleTpe => WeakTypeTag.Double.asInstanceOf[WeakTypeTag[T]] + case BooleanTpe => WeakTypeTag.Boolean.asInstanceOf[WeakTypeTag[T]] + case UnitTpe => WeakTypeTag.Unit.asInstanceOf[WeakTypeTag[T]] + case AnyTpe => WeakTypeTag.Any.asInstanceOf[WeakTypeTag[T]] + case AnyValTpe => WeakTypeTag.AnyVal.asInstanceOf[WeakTypeTag[T]] + case AnyRefTpe => WeakTypeTag.AnyRef.asInstanceOf[WeakTypeTag[T]] + case ObjectTpe => WeakTypeTag.Object.asInstanceOf[WeakTypeTag[T]] + case NothingTpe => WeakTypeTag.Nothing.asInstanceOf[WeakTypeTag[T]] + case NullTpe => WeakTypeTag.Null.asInstanceOf[WeakTypeTag[T]] + case _ => new WeakTypeTagImpl[T](mirror1.asInstanceOf[Mirror], tpec1) } - def unapply[T](ttag: AbsTypeTag[T]): Option[Type] = Some(ttag.tpe) + def unapply[T](ttag: WeakTypeTag[T]): Option[Type] = Some(ttag.tpe) } - private class AbsTypeTagImpl[T](val mirror: Mirror, val tpec: TypeCreator) extends AbsTypeTag[T] { + private class WeakTypeTagImpl[T](val mirror: Mirror, val tpec: TypeCreator) extends WeakTypeTag[T] { lazy val tpe: Type = tpec(mirror) - def in[U <: Universe with Singleton](otherMirror: MirrorOf[U]): U # AbsTypeTag[T] = { + def in[U <: Universe with Singleton](otherMirror: MirrorOf[U]): U # WeakTypeTag[T] = { val otherMirror1 = otherMirror.asInstanceOf[MirrorOf[otherMirror.universe.type]] - otherMirror.universe.AbsTypeTag[T](otherMirror1, tpec) + otherMirror.universe.WeakTypeTag[T](otherMirror1, tpec) } private def writeReplace(): AnyRef = new SerializedTypeTag(tpec, concrete = false) } @@ -180,7 +180,7 @@ trait TypeTags { self: Universe => * @see [[scala.reflect.base.TypeTags]] */ @annotation.implicitNotFound(msg = "No TypeTag available for ${T}") - trait TypeTag[T] extends AbsTypeTag[T] with Equals with Serializable { + trait TypeTag[T] extends WeakTypeTag[T] with Equals with Serializable { override def in[U <: Universe with Singleton](otherMirror: MirrorOf[U]): U # TypeTag[T] /** case class accessories */ @@ -230,7 +230,7 @@ trait TypeTags { self: Universe => def unapply[T](ttag: TypeTag[T]): Option[Type] = Some(ttag.tpe) } - private class TypeTagImpl[T](mirror: Mirror, tpec: TypeCreator) extends AbsTypeTagImpl[T](mirror, tpec) with TypeTag[T] { + private class TypeTagImpl[T](mirror: Mirror, tpec: TypeCreator) extends WeakTypeTagImpl[T](mirror, tpec) with TypeTag[T] { override def in[U <: Universe with Singleton](otherMirror: MirrorOf[U]): U # TypeTag[T] = { val otherMirror1 = otherMirror.asInstanceOf[MirrorOf[otherMirror.universe.type]] otherMirror.universe.TypeTag[T](otherMirror1, tpec) @@ -250,11 +250,11 @@ trait TypeTags { self: Universe => } // incantations - def absTypeTag[T](implicit attag: AbsTypeTag[T]) = attag + def weakTypeTag[T](implicit attag: WeakTypeTag[T]) = attag def typeTag[T](implicit ttag: TypeTag[T]) = ttag // big thanks to Viktor Klang for this brilliant idea! - def absTypeOf[T](implicit attag: AbsTypeTag[T]): Type = attag.tpe + def weakTypeOf[T](implicit attag: WeakTypeTag[T]): Type = attag.tpe def typeOf[T](implicit ttag: TypeTag[T]): Type = ttag.tpe } @@ -272,6 +272,6 @@ private[scala] class SerializedTypeTag(var tpec: TypeCreator, var concrete: Bool private def readResolve(): AnyRef = { import scala.reflect.basis._ if (concrete) TypeTag(rootMirror, tpec) - else AbsTypeTag(rootMirror, tpec) + else WeakTypeTag(rootMirror, tpec) } -}
\ No newline at end of file +} diff --git a/src/library/scala/reflect/base/Universe.scala b/src/library/scala/reflect/base/Universe.scala index f098876c18..18599ad092 100644 --- a/src/library/scala/reflect/base/Universe.scala +++ b/src/library/scala/reflect/base/Universe.scala @@ -46,7 +46,7 @@ abstract class Universe extends Symbols * def macroImpl[T](c: Context) = { * ... * // T here is just a type parameter, so the tree produced by reify won't be of much use in a macro expansion - * // however, if T were annotated with c.AbsTypeTag (which would declare an implicit parameter for macroImpl) + * // however, if T were annotated with c.WeakTypeTag (which would declare an implicit parameter for macroImpl) * // then reification would substitute T with the TypeTree that was used in a TypeApply of this particular macro invocation * val factory = c.reify{ new Queryable[T] } * ... diff --git a/src/library/scala/reflect/macros/internal/macroImpl.scala b/src/library/scala/reflect/macros/internal/macroImpl.scala index a7b2bf482c..b281fb7d12 100644 --- a/src/library/scala/reflect/macros/internal/macroImpl.scala +++ b/src/library/scala/reflect/macros/internal/macroImpl.scala @@ -15,4 +15,4 @@ package internal * To lessen the weirdness we define this annotation as `private[scala]`. * It will not prevent pickling, but it will prevent application developers (and scaladocs) from seeing the annotation. */ -private[scala] class macroImpl(val referenceToMacroImpl: Any) extends annotation.StaticAnnotation +private[scala] class macroImpl(val referenceToMacroImpl: Any) extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/reflect/macros/internal/package.scala b/src/library/scala/reflect/macros/internal/package.scala index 0a0e6c5b51..aca2b765f1 100644 --- a/src/library/scala/reflect/macros/internal/package.scala +++ b/src/library/scala/reflect/macros/internal/package.scala @@ -8,6 +8,6 @@ import scala.reflect.ClassTag // todo. once we have implicit macros for tag generation, we can remove these anchors package object internal { private[scala] def materializeClassTag[T](u: BaseUniverse): ClassTag[T] = ??? // macro - private[scala] def materializeAbsTypeTag[T](u: BaseUniverse): u.AbsTypeTag[T] = ??? // macro + private[scala] def materializeWeakTypeTag[T](u: BaseUniverse): u.WeakTypeTag[T] = ??? // macro private[scala] def materializeTypeTag[T](u: BaseUniverse): u.TypeTag[T] = ??? // macro } diff --git a/src/library/scala/remote.scala b/src/library/scala/remote.scala index bf6b440031..36893da298 100644 --- a/src/library/scala/remote.scala +++ b/src/library/scala/remote.scala @@ -24,4 +24,4 @@ package scala * } * }}} */ -class remote extends annotation.StaticAnnotation {} +class remote extends scala.annotation.StaticAnnotation {} diff --git a/src/library/scala/runtime/RichException.scala b/src/library/scala/runtime/RichException.scala index bb20ec61bb..b9289562f8 100644 --- a/src/library/scala/runtime/RichException.scala +++ b/src/library/scala/runtime/RichException.scala @@ -8,7 +8,7 @@ package scala.runtime -import compat.Platform.EOL +import scala.compat.Platform.EOL final class RichException(exc: Throwable) { def getStackTraceString = exc.getStackTrace().mkString("", EOL, EOL) diff --git a/src/library/scala/runtime/ScalaNumberProxy.scala b/src/library/scala/runtime/ScalaNumberProxy.scala index 64df4611e3..df2d209e3e 100644 --- a/src/library/scala/runtime/ScalaNumberProxy.scala +++ b/src/library/scala/runtime/ScalaNumberProxy.scala @@ -9,7 +9,7 @@ package scala.runtime import scala.collection.{ mutable, immutable } -import math.ScalaNumericConversions +import scala.math.ScalaNumericConversions import immutable.NumericRange import Proxy.Typed diff --git a/src/library/scala/runtime/ScalaRunTime.scala b/src/library/scala/runtime/ScalaRunTime.scala index d32ece144a..ad36006646 100644 --- a/src/library/scala/runtime/ScalaRunTime.scala +++ b/src/library/scala/runtime/ScalaRunTime.scala @@ -143,7 +143,7 @@ object ScalaRunTime { dest } - def toArray[T](xs: collection.Seq[T]) = { + def toArray[T](xs: scala.collection.Seq[T]) = { val arr = new Array[AnyRef](xs.length) var i = 0 for (x <- xs) { @@ -166,35 +166,6 @@ object ScalaRunTime { def checkInitialized[T <: AnyRef](x: T): T = if (x == null) throw new UninitializedError else x - abstract class Try[+A] { - def Catch[B >: A](handler: PartialFunction[Throwable, B]): B - def Finally(fin: => Unit): A - } - - def Try[A](block: => A): Try[A] = new Try[A] with Runnable { - private var result: A = _ - private var exception: Throwable = - try { run() ; null } - catch { - case e: ControlThrowable => throw e // don't catch non-local returns etc - case e: Throwable => e - } - - def run() { result = block } - - def Catch[B >: A](handler: PartialFunction[Throwable, B]): B = - if (exception == null) result - else if (handler isDefinedAt exception) handler(exception) - else throw exception - - def Finally(fin: => Unit): A = { - fin - - if (exception == null) result - else throw exception - } - } - def _toString(x: Product): String = x.productIterator.mkString(x.productPrefix + "(", ",", ")") @@ -278,7 +249,7 @@ object ScalaRunTime { * it's performing a series of Any/Any equals comparisons anyway. * See ticket #2867 for specifics. */ - def sameElements(xs1: collection.Seq[Any], xs2: collection.Seq[Any]) = xs1 sameElements xs2 + def sameElements(xs1: scala.collection.Seq[Any], xs2: scala.collection.Seq[Any]) = xs1 sameElements xs2 /** Given any Scala value, convert it to a String. * @@ -345,7 +316,7 @@ object ScalaRunTime { case x: String => if (x.head.isWhitespace || x.last.isWhitespace) "\"" + x + "\"" else x case x if useOwnToString(x) => x.toString case x: AnyRef if isArray(x) => arrayToString(x) - case x: collection.Map[_, _] => x.iterator take maxElements map mapInner mkString (x.stringPrefix + "(", ", ", ")") + case x: scala.collection.Map[_, _] => x.iterator take maxElements map mapInner mkString (x.stringPrefix + "(", ", ", ")") case x: Iterable[_] => x.iterator take maxElements map inner mkString (x.stringPrefix + "(", ", ", ")") case x: Traversable[_] => x take maxElements map inner mkString (x.stringPrefix + "(", ", ", ")") case x: Product1[_] if isTuple(x) => "(" + inner(x._1) + ",)" // that special trailing comma diff --git a/src/library/scala/runtime/SeqCharSequence.scala b/src/library/scala/runtime/SeqCharSequence.scala index 8ef1a9a33e..dc9594d960 100644 --- a/src/library/scala/runtime/SeqCharSequence.scala +++ b/src/library/scala/runtime/SeqCharSequence.scala @@ -10,7 +10,7 @@ package scala.runtime import java.util.Arrays.copyOfRange -final class SeqCharSequence(val xs: collection.IndexedSeq[Char]) extends CharSequence { +final class SeqCharSequence(val xs: scala.collection.IndexedSeq[Char]) extends CharSequence { def length: Int = xs.length def charAt(index: Int): Char = xs(index) def subSequence(start: Int, end: Int): CharSequence = new SeqCharSequence(xs.slice(start, end)) diff --git a/src/library/scala/runtime/Tuple2Zipped.scala b/src/library/scala/runtime/Tuple2Zipped.scala index 182fd77133..bd52c678af 100644 --- a/src/library/scala/runtime/Tuple2Zipped.scala +++ b/src/library/scala/runtime/Tuple2Zipped.scala @@ -10,7 +10,7 @@ package scala.runtime import scala.collection.{ TraversableLike, IterableLike } import scala.collection.generic.{ CanBuildFrom => CBF } -import language.{ higherKinds, implicitConversions } +import scala.language.{ higherKinds, implicitConversions } /** This interface is intended as a minimal interface, not complicated * by the requirement to resolve type constructors, for implicit search (which only @@ -111,7 +111,7 @@ object Tuple2Zipped { def invert[El1, CC1[X] <: TraversableOnce[X], El2, CC2[X] <: TraversableOnce[X], That] (implicit w1: T1 <:< CC1[El1], w2: T2 <:< CC2[El2], - bf: collection.generic.CanBuildFrom[CC1[_], (El1, El2), That] + bf: scala.collection.generic.CanBuildFrom[CC1[_], (El1, El2), That] ): That = { val buf = bf(x._1) val it1 = x._1.toIterator diff --git a/src/library/scala/runtime/Tuple3Zipped.scala b/src/library/scala/runtime/Tuple3Zipped.scala index f6aafe41fb..3b78b6261a 100644 --- a/src/library/scala/runtime/Tuple3Zipped.scala +++ b/src/library/scala/runtime/Tuple3Zipped.scala @@ -10,7 +10,7 @@ package scala.runtime import scala.collection.{ TraversableLike, IterableLike } import scala.collection.generic.{ CanBuildFrom => CBF } -import language.{ higherKinds, implicitConversions } +import scala.language.{ higherKinds, implicitConversions } /** See comment on ZippedTraversable2. */ trait ZippedTraversable3[+El1, +El2, +El3] extends Any { @@ -119,7 +119,7 @@ object Tuple3Zipped { (implicit w1: T1 <:< CC1[El1], w2: T2 <:< CC2[El2], w3: T3 <:< CC3[El3], - bf: collection.generic.CanBuildFrom[CC1[_], (El1, El2, El3), That] + bf: scala.collection.generic.CanBuildFrom[CC1[_], (El1, El2, El3), That] ): That = { val buf = bf(x._1) val it1 = x._1.toIterator diff --git a/src/library/scala/specialized.scala b/src/library/scala/specialized.scala index 761c7cb25e..d349b7e0c2 100644 --- a/src/library/scala/specialized.scala +++ b/src/library/scala/specialized.scala @@ -24,9 +24,9 @@ import Specializable._ * * @since 2.8 */ -// class tspecialized[T](group: Group[T]) extends annotation.StaticAnnotation { +// class tspecialized[T](group: Group[T]) extends scala.annotation.StaticAnnotation { -class specialized(group: SpecializedGroup) extends annotation.StaticAnnotation { +class specialized(group: SpecializedGroup) extends scala.annotation.StaticAnnotation { def this(types: Specializable*) = this(new Group(types.toList)) def this() = this(Primitives) } diff --git a/src/library/scala/sys/BooleanProp.scala b/src/library/scala/sys/BooleanProp.scala index 45fc6f5897..7213fdeb65 100644 --- a/src/library/scala/sys/BooleanProp.scala +++ b/src/library/scala/sys/BooleanProp.scala @@ -8,7 +8,7 @@ package scala.sys -import language.implicitConversions +import scala.language.implicitConversions /** A few additional conveniences for Boolean properties. */ diff --git a/src/library/scala/sys/SystemProperties.scala b/src/library/scala/sys/SystemProperties.scala index d5777922b4..5777c255c3 100644 --- a/src/library/scala/sys/SystemProperties.scala +++ b/src/library/scala/sys/SystemProperties.scala @@ -11,7 +11,7 @@ package scala.sys import scala.collection.{ mutable, Iterator } import scala.collection.JavaConverters._ import java.security.AccessControlException -import language.implicitConversions +import scala.language.implicitConversions /** A bidirectional map wrapping the java System properties. diff --git a/src/library/scala/sys/package.scala b/src/library/scala/sys/package.scala index 119ab59c22..445b30e480 100644 --- a/src/library/scala/sys/package.scala +++ b/src/library/scala/sys/package.scala @@ -9,7 +9,7 @@ package scala import scala.collection.immutable -import collection.JavaConverters._ +import scala.collection.JavaConverters._ /** The package object `scala.sys` contains methods for reading * and altering core aspects of the virtual machine as well as the @@ -85,4 +85,4 @@ package object sys { tarray take got } -}
\ No newline at end of file +} diff --git a/src/library/scala/sys/process/Process.scala b/src/library/scala/sys/process/Process.scala index d56c6f2c9d..4950758a1a 100644 --- a/src/library/scala/sys/process/Process.scala +++ b/src/library/scala/sys/process/Process.scala @@ -11,7 +11,7 @@ package process import processInternal._ import ProcessBuilder._ -import language.implicitConversions +import scala.language.implicitConversions /** Represents a process that is running or has finished running. * It may be a compound process with several underlying native processes (such as `a #&& b`). diff --git a/src/library/scala/sys/process/package.scala b/src/library/scala/sys/process/package.scala index c1bf470831..7c73fd587c 100644 --- a/src/library/scala/sys/process/package.scala +++ b/src/library/scala/sys/process/package.scala @@ -205,7 +205,7 @@ package scala.sys { package object process extends ProcessImplicits { /** The arguments passed to `java` when creating this process */ def javaVmArguments: List[String] = { - import collection.JavaConversions._ + import scala.collection.JavaConversions._ java.lang.management.ManagementFactory.getRuntimeMXBean().getInputArguments().toList } diff --git a/src/library/scala/testing/Benchmark.scala b/src/library/scala/testing/Benchmark.scala index 9c07fcab4f..3794fb3f2b 100644 --- a/src/library/scala/testing/Benchmark.scala +++ b/src/library/scala/testing/Benchmark.scala @@ -8,7 +8,7 @@ package scala.testing -import compat.Platform +import scala.compat.Platform /** `Benchmark` can be used to quickly turn an existing class into a * benchmark. Here is a short example: diff --git a/src/library/scala/throws.scala b/src/library/scala/throws.scala index 4621c789ab..0aa0d31c9f 100644 --- a/src/library/scala/throws.scala +++ b/src/library/scala/throws.scala @@ -23,4 +23,4 @@ package scala * @version 1.0, 19/05/2006 * @since 2.1 */ -class throws(clazz: Class[_]) extends annotation.StaticAnnotation +class throws(clazz: Class[_]) extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/transient.scala b/src/library/scala/transient.scala index 3dcff0664c..36dcb996cf 100644 --- a/src/library/scala/transient.scala +++ b/src/library/scala/transient.scala @@ -10,7 +10,7 @@ package scala -import annotation.meta._ +import scala.annotation.meta._ @field -class transient extends annotation.StaticAnnotation +class transient extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/unchecked.scala b/src/library/scala/unchecked.scala index 5b05792d97..281f2ef4d7 100644 --- a/src/library/scala/unchecked.scala +++ b/src/library/scala/unchecked.scala @@ -33,4 +33,4 @@ package scala * * @since 2.4 */ -class unchecked extends annotation.Annotation {} +class unchecked extends scala.annotation.Annotation {} diff --git a/src/library/scala/util/Either.scala b/src/library/scala/util/Either.scala index dcfdc16d33..f0253eee07 100644 --- a/src/library/scala/util/Either.scala +++ b/src/library/scala/util/Either.scala @@ -10,7 +10,7 @@ package scala.util -import language.implicitConversions +import scala.language.implicitConversions /** Represents a value of one of two possible types (a disjoint union.) * Instances of Either are either an instance of [[scala.util.Left]] or [[scala.util.Right]]. diff --git a/src/library/scala/util/MurmurHash.scala b/src/library/scala/util/MurmurHash.scala index 029fe095af..c087b0d8c8 100644 --- a/src/library/scala/util/MurmurHash.scala +++ b/src/library/scala/util/MurmurHash.scala @@ -178,7 +178,7 @@ object MurmurHash { * where the order of appearance of elements does not matter. * This is useful for hashing sets, for example. */ - def symmetricHash[T](xs: collection.TraversableOnce[T], seed: Int) = { + def symmetricHash[T](xs: scala.collection.TraversableOnce[T], seed: Int) = { var a,b,n = 0 var c = 1 xs.seq.foreach(i => { diff --git a/src/library/scala/util/Random.scala b/src/library/scala/util/Random.scala index 65a1b8c685..85ac27e95c 100644 --- a/src/library/scala/util/Random.scala +++ b/src/library/scala/util/Random.scala @@ -8,10 +8,10 @@ package scala.util -import collection.mutable.ArrayBuffer -import collection.generic.CanBuildFrom +import scala.collection.mutable.ArrayBuffer +import scala.collection.generic.CanBuildFrom import scala.collection.immutable.{ List, Stream } -import language.{implicitConversions, higherKinds} +import scala.language.{implicitConversions, higherKinds} /** * @author Stephane Micheloud diff --git a/src/library/scala/util/Try.scala b/src/library/scala/util/Try.scala index f381a18b0c..fe409c2d7a 100644 --- a/src/library/scala/util/Try.scala +++ b/src/library/scala/util/Try.scala @@ -8,9 +8,9 @@ package scala.util -import collection.Seq +import scala.collection.Seq import scala.util.control.NonFatal -import language.implicitConversions +import scala.language.implicitConversions /** * The `Try` type represents a computation that may either result in an exception, or return a @@ -52,6 +52,8 @@ import language.implicitConversions * ''Note'': only non-fatal exceptions are caught by the combinators on `Try` (see [[scala.util.control.NonFatal]]). * Serious system errors, on the other hand, will be thrown. * + * ''Note:'': all Try combinators will catch exceptions and return failure unless otherwise specified in the documentation. + * * `Try` comes to the Scala standard library after years of use as an integral part of Twitter's stack. * * @author based on Twitter's original implementation in com.twitter.util. @@ -68,12 +70,19 @@ sealed abstract class Try[+T] { def isSuccess: Boolean /** Returns the value from this `Success` or the given `default` argument if this is a `Failure`. + * + * ''Note:'': This will throw an exception if it is not a success and default throws an exception. */ - def getOrElse[U >: T](default: => U) = if (isSuccess) get else default + def getOrElse[U >: T](default: => U): U = + if (isSuccess) get else default /** Returns this `Try` if it's a `Success` or the given `default` argument if this is a `Failure`. */ - def orElse[U >: T](default: => Try[U]) = if (isSuccess) this else default + def orElse[U >: T](default: => Try[U]): Try[U] = + try if (isSuccess) this else default + catch { + case NonFatal(e) => Failure(e) + } /** Returns the value from this `Success` or throws the exception if this is a `Failure`. */ @@ -81,6 +90,8 @@ sealed abstract class Try[+T] { /** * Applies the given function `f` if this is a `Success`, otherwise returns `Unit` if this is a `Failure`. + * + * ''Note:'' If `f` throws, then this method may throw an exception. */ def foreach[U](f: T => U): Unit @@ -114,7 +125,7 @@ sealed abstract class Try[+T] { /** * Returns `None` if this is a `Failure` or a `Some` containing the value if this is a `Success`. */ - def toOption = if (isSuccess) Some(get) else None + def toOption: Option[T] = if (isSuccess) Some(get) else None /** * Transforms a nested `Try`, ie, a `Try` of type `Try[Try[T]]`, @@ -131,20 +142,25 @@ sealed abstract class Try[+T] { /** Completes this `Try` by applying the function `f` to this if this is of type `Failure`, or conversely, by applying * `s` if this is a `Success`. */ - def transform[U](s: T => Try[U], f: Throwable => Try[U]): Try[U] = this match { - case Success(v) => s(v) - case Failure(e) => f(e) - } + def transform[U](s: T => Try[U], f: Throwable => Try[U]): Try[U] = + try this match { + case Success(v) => s(v) + case Failure(e) => f(e) + } catch { + case NonFatal(e) => Failure(e) + } } object Try { - - def apply[T](r: => T): Try[T] = { - try { Success(r) } catch { + /** Constructs a `Try` using the by-name parameter. This + * method will ensure any non-fatal exception is caught and a + * `Failure` object is returned. + */ + def apply[T](r: => T): Try[T] = + try Success(r) catch { case NonFatal(e) => Failure(e) } - } } @@ -152,24 +168,25 @@ final case class Failure[+T](val exception: Throwable) extends Try[T] { def isFailure: Boolean = true def isSuccess: Boolean = false def recoverWith[U >: T](f: PartialFunction[Throwable, Try[U]]): Try[U] = - if (f.isDefinedAt(exception)) f(exception) else this + try { + if (f isDefinedAt exception) f(exception) else this + } catch { + case NonFatal(e) => Failure(e) + } def get: T = throw exception - def flatMap[U](f: T => Try[U]): Try[U] = Failure[U](exception) - def flatten[U](implicit ev: T <:< Try[U]): Try[U] = Failure[U](exception) - def foreach[U](f: T => U): Unit = {} - def map[U](f: T => U): Try[U] = Failure[U](exception) + def flatMap[U](f: T => Try[U]): Try[U] = this.asInstanceOf[Try[U]] + def flatten[U](implicit ev: T <:< Try[U]): Try[U] = this.asInstanceOf[Try[U]] + def foreach[U](f: T => U): Unit = () + def map[U](f: T => U): Try[U] = this.asInstanceOf[Try[U]] def filter(p: T => Boolean): Try[T] = this - def recover[U >: T](rescueException: PartialFunction[Throwable, U]): Try[U] = { + def recover[U >: T](rescueException: PartialFunction[Throwable, U]): Try[U] = try { - if (rescueException.isDefinedAt(exception)) { + if (rescueException isDefinedAt exception) { Try(rescueException(exception)) - } else { - this - } + } else this } catch { case NonFatal(e) => Failure(e) } - } def failed: Try[Throwable] = Success(exception) } @@ -177,7 +194,7 @@ final case class Failure[+T](val exception: Throwable) extends Try[T] { final case class Success[+T](value: T) extends Try[T] { def isFailure: Boolean = false def isSuccess: Boolean = true - def recoverWith[U >: T](f: PartialFunction[Throwable, Try[U]]): Try[U] = Success(value) + def recoverWith[U >: T](f: PartialFunction[Throwable, Try[U]]): Try[U] = this def get = value def flatMap[U](f: T => Try[U]): Try[U] = try f(value) diff --git a/src/library/scala/util/control/Exception.scala b/src/library/scala/util/control/Exception.scala index 1567e06c22..28e4db2038 100644 --- a/src/library/scala/util/control/Exception.scala +++ b/src/library/scala/util/control/Exception.scala @@ -9,10 +9,10 @@ package scala.util package control -import collection.immutable.List -import reflect.{ ClassTag, classTag } +import scala.collection.immutable.List +import scala.reflect.{ ClassTag, classTag } import java.lang.reflect.InvocationTargetException -import language.implicitConversions +import scala.language.implicitConversions /** Classes representing the components of exception handling. @@ -27,7 +27,7 @@ import language.implicitConversions * }}} * * This class differs from `scala.util.Try` in that it focuses on composing exception handlers rather than - * composing behavior. All behavior should be composed first and fed to a `Catch` object using one of the + * composing behavior. All behavior should be composed first and fed to a `Catch` object using one of the * `opt` or `either` methods. * * @author Paul Phillips @@ -218,7 +218,7 @@ object Exception { } /** Private **/ - private def wouldMatch(x: Throwable, classes: collection.Seq[Class[_]]): Boolean = + private def wouldMatch(x: Throwable, classes: scala.collection.Seq[Class[_]]): Boolean = classes exists (_ isAssignableFrom x.getClass) private def pfFromExceptions(exceptions: Class[_]*): PartialFunction[Throwable, Nothing] = diff --git a/src/library/scala/util/hashing/MurmurHash3.scala b/src/library/scala/util/hashing/MurmurHash3.scala index 1cfb8276fe..8174f09bb2 100644 --- a/src/library/scala/util/hashing/MurmurHash3.scala +++ b/src/library/scala/util/hashing/MurmurHash3.scala @@ -158,7 +158,7 @@ private[hashing] class MurmurHash3 { finalizeHash(h, data.length) } - final def listHash(xs: collection.immutable.List[_], seed: Int): Int = { + final def listHash(xs: scala.collection.immutable.List[_], seed: Int): Int = { var n = 0 var h = seed var elems = xs @@ -213,45 +213,45 @@ object MurmurHash3 extends MurmurHash3 { /** To offer some potential for optimization. */ - def seqHash(xs: collection.Seq[_]): Int = xs match { + def seqHash(xs: scala.collection.Seq[_]): Int = xs match { case xs: List[_] => listHash(xs, seqSeed) case xs => orderedHash(xs, seqSeed) } - def mapHash(xs: collection.Map[_, _]): Int = unorderedHash(xs, mapSeed) - def setHash(xs: collection.Set[_]): Int = unorderedHash(xs, setSeed) + def mapHash(xs: scala.collection.Map[_, _]): Int = unorderedHash(xs, mapSeed) + def setHash(xs: scala.collection.Set[_]): Int = unorderedHash(xs, setSeed) class ArrayHashing[@specialized T] extends Hashing[Array[T]] { def hash(a: Array[T]) = arrayHash(a) } - + def arrayHashing[@specialized T] = new ArrayHashing[T] - + def bytesHashing = new Hashing[Array[Byte]] { def hash(data: Array[Byte]) = bytesHash(data) } - + def orderedHashing = new Hashing[TraversableOnce[Any]] { def hash(xs: TraversableOnce[Any]) = orderedHash(xs) } - + def productHashing = new Hashing[Product] { def hash(x: Product) = productHash(x) } - + def stringHashing = new Hashing[String] { def hash(x: String) = stringHash(x) } - + def unorderedHashing = new Hashing[TraversableOnce[Any]] { def hash(xs: TraversableOnce[Any]) = unorderedHash(xs) } - + /** All this trouble and foreach still appears faster. * Leaving in place in case someone would like to investigate further. */ /** - def linearSeqHash(xs: collection.LinearSeq[_], seed: Int): Int = { + def linearSeqHash(xs: scala.collection.LinearSeq[_], seed: Int): Int = { var n = 0 var h = seed var elems = xs @@ -263,7 +263,7 @@ object MurmurHash3 extends MurmurHash3 { finalizeHash(h, n) } - def indexedSeqHash(xs: collection.IndexedSeq[_], seed: Int): Int = { + def indexedSeqHash(xs: scala.collection.IndexedSeq[_], seed: Int): Int = { var n = 0 var h = seed val len = xs.length @@ -276,10 +276,10 @@ object MurmurHash3 extends MurmurHash3 { */ @deprecated("Use unorderedHash", "2.10.0") - final def symmetricHash[T](xs: collection.GenTraversableOnce[T], seed: Int = symmetricSeed): Int = + final def symmetricHash[T](xs: scala.collection.GenTraversableOnce[T], seed: Int = symmetricSeed): Int = unorderedHash(xs.seq, seed) @deprecated("Use orderedHash", "2.10.0") - final def traversableHash[T](xs: collection.GenTraversableOnce[T], seed: Int = traversableSeed): Int = + final def traversableHash[T](xs: scala.collection.GenTraversableOnce[T], seed: Int = traversableSeed): Int = orderedHash(xs.seq, seed) } diff --git a/src/library/scala/util/parsing/ast/Binders.scala b/src/library/scala/util/parsing/ast/Binders.scala index b93c24fde4..fc3b36a4e0 100644 --- a/src/library/scala/util/parsing/ast/Binders.scala +++ b/src/library/scala/util/parsing/ast/Binders.scala @@ -10,7 +10,7 @@ package scala.util.parsing.ast import scala.collection.AbstractIterable import scala.collection.mutable -import language.implicitConversions +import scala.language.implicitConversions //DISCLAIMER: this code is highly experimental! diff --git a/src/library/scala/util/parsing/combinator/ImplicitConversions.scala b/src/library/scala/util/parsing/combinator/ImplicitConversions.scala index 270ac680a9..5b616e9e13 100644 --- a/src/library/scala/util/parsing/combinator/ImplicitConversions.scala +++ b/src/library/scala/util/parsing/combinator/ImplicitConversions.scala @@ -9,7 +9,7 @@ package scala.util.parsing.combinator -import language.implicitConversions +import scala.language.implicitConversions /** This object contains implicit conversions that come in handy when using the `^^` combinator. * diff --git a/src/library/scala/util/parsing/combinator/JavaTokenParsers.scala b/src/library/scala/util/parsing/combinator/JavaTokenParsers.scala index 06567ea348..520ac8cc2c 100644 --- a/src/library/scala/util/parsing/combinator/JavaTokenParsers.scala +++ b/src/library/scala/util/parsing/combinator/JavaTokenParsers.scala @@ -9,7 +9,7 @@ package scala.util.parsing.combinator -import annotation.migration +import scala.annotation.migration /** `JavaTokenParsers` differs from [[scala.util.parsing.combinator.RegexParsers]] * by adding the following definitions: diff --git a/src/library/scala/util/parsing/combinator/PackratParsers.scala b/src/library/scala/util/parsing/combinator/PackratParsers.scala index 9516df0093..91642da229 100644 --- a/src/library/scala/util/parsing/combinator/PackratParsers.scala +++ b/src/library/scala/util/parsing/combinator/PackratParsers.scala @@ -11,7 +11,7 @@ package scala.util.parsing.combinator import scala.util.parsing.combinator._ import scala.util.parsing.input.{ Reader, Position } import scala.collection.mutable -import language.implicitConversions +import scala.language.implicitConversions /** * `PackratParsers` is a component that extends the parser combinators diff --git a/src/library/scala/util/parsing/combinator/Parsers.scala b/src/library/scala/util/parsing/combinator/Parsers.scala index eaaea583ce..e6c9573756 100644 --- a/src/library/scala/util/parsing/combinator/Parsers.scala +++ b/src/library/scala/util/parsing/combinator/Parsers.scala @@ -11,8 +11,8 @@ package scala.util.parsing.combinator import scala.util.parsing.input._ import scala.collection.mutable.ListBuffer import scala.annotation.tailrec -import annotation.migration -import language.implicitConversions +import scala.annotation.migration +import scala.language.implicitConversions import scala.util.DynamicVariable // TODO: better error handling (labelling like parsec's <?>) diff --git a/src/library/scala/util/parsing/combinator/RegexParsers.scala b/src/library/scala/util/parsing/combinator/RegexParsers.scala index d685329ef1..9a2c497eab 100644 --- a/src/library/scala/util/parsing/combinator/RegexParsers.scala +++ b/src/library/scala/util/parsing/combinator/RegexParsers.scala @@ -13,7 +13,7 @@ import java.util.regex.Pattern import scala.util.matching.Regex import scala.util.parsing.input._ import scala.collection.immutable.PagedSeq -import language.implicitConversions +import scala.language.implicitConversions /** The ''most important'' differences between `RegexParsers` and * [[scala.util.parsing.combinator.Parsers]] are: diff --git a/src/library/scala/util/parsing/combinator/syntactical/StandardTokenParsers.scala b/src/library/scala/util/parsing/combinator/syntactical/StandardTokenParsers.scala index 215b8b792f..03979d43b7 100644 --- a/src/library/scala/util/parsing/combinator/syntactical/StandardTokenParsers.scala +++ b/src/library/scala/util/parsing/combinator/syntactical/StandardTokenParsers.scala @@ -13,7 +13,7 @@ package syntactical import token._ import lexical.StdLexical -import language.implicitConversions +import scala.language.implicitConversions /** This component provides primitive parsers for the standard tokens defined in `StdTokens`. * diff --git a/src/library/scala/util/parsing/combinator/syntactical/StdTokenParsers.scala b/src/library/scala/util/parsing/combinator/syntactical/StdTokenParsers.scala index 7aa6178df9..a3b94e2562 100644 --- a/src/library/scala/util/parsing/combinator/syntactical/StdTokenParsers.scala +++ b/src/library/scala/util/parsing/combinator/syntactical/StdTokenParsers.scala @@ -14,7 +14,7 @@ package syntactical import token._ import scala.collection.mutable -import language.implicitConversions +import scala.language.implicitConversions /** This component provides primitive parsers for the standard tokens defined in `StdTokens`. * diff --git a/src/library/scala/util/parsing/combinator/testing/RegexTest.scala b/src/library/scala/util/parsing/combinator/testing/RegexTest.scala index ff3554a6af..80e9b0df39 100644 --- a/src/library/scala/util/parsing/combinator/testing/RegexTest.scala +++ b/src/library/scala/util/parsing/combinator/testing/RegexTest.scala @@ -3,7 +3,7 @@ package scala.util.parsing.combinator.testing import scala.util.parsing.combinator._ import scala.util.parsing.input._ -import language.postfixOps +import scala.language.postfixOps @deprecated("This class will be removed", "2.10.0") case class Ident(s: String) diff --git a/src/library/scala/util/parsing/input/OffsetPosition.scala b/src/library/scala/util/parsing/input/OffsetPosition.scala index 57a2c9c4c2..3366584ab2 100644 --- a/src/library/scala/util/parsing/input/OffsetPosition.scala +++ b/src/library/scala/util/parsing/input/OffsetPosition.scala @@ -8,7 +8,7 @@ package scala.util.parsing.input -import collection.mutable.ArrayBuffer +import scala.collection.mutable.ArrayBuffer /** `OffsetPosition` is a standard class for positions * represented as offsets into a source ``document''. diff --git a/src/library/scala/volatile.scala b/src/library/scala/volatile.scala index 88726d9336..1290e54f3a 100644 --- a/src/library/scala/volatile.scala +++ b/src/library/scala/volatile.scala @@ -10,7 +10,7 @@ package scala -import annotation.meta._ +import scala.annotation.meta._ @field -class volatile extends annotation.StaticAnnotation +class volatile extends scala.annotation.StaticAnnotation diff --git a/src/library/scala/xml/Elem.scala b/src/library/scala/xml/Elem.scala index f140fd1e07..2ca1dbfcd0 100755 --- a/src/library/scala/xml/Elem.scala +++ b/src/library/scala/xml/Elem.scala @@ -73,7 +73,7 @@ extends Node with Serializable throw new IllegalArgumentException("prefix of zero length, use null instead") if (scope == null) - throw new IllegalArgumentException("scope is null, use xml.TopScope for empty scope") + throw new IllegalArgumentException("scope is null, use scala.xml.TopScope for empty scope") //@todo: copy the children, // setting namespace scope if necessary diff --git a/src/library/scala/xml/Equality.scala b/src/library/scala/xml/Equality.scala index 07651adb90..0efbb4c511 100644 --- a/src/library/scala/xml/Equality.scala +++ b/src/library/scala/xml/Equality.scala @@ -13,7 +13,7 @@ package scala.xml * all the `xml` classes go through the `xml.Equality trait`. There are two * forms of `xml` comparison. * - * 1. `'''def''' strict_==(other: xml.Equality)` + * 1. `'''def''' strict_==(other: scala.xml.Equality)` * * This one tries to honor the little things like symmetry and hashCode * contracts. The `equals` method routes all comparisons through this. diff --git a/src/library/scala/xml/MetaData.scala b/src/library/scala/xml/MetaData.scala index e98ec90aca..15b3cb6d4a 100644 --- a/src/library/scala/xml/MetaData.scala +++ b/src/library/scala/xml/MetaData.scala @@ -9,7 +9,7 @@ package scala.xml import Utility.sbToString -import annotation.tailrec +import scala.annotation.tailrec import scala.collection.{ AbstractIterable, Iterator } /** diff --git a/src/library/scala/xml/NodeSeq.scala b/src/library/scala/xml/NodeSeq.scala index 40ddc7d85c..e50e68d4fd 100644 --- a/src/library/scala/xml/NodeSeq.scala +++ b/src/library/scala/xml/NodeSeq.scala @@ -8,10 +8,10 @@ package scala.xml -import collection.{ mutable, immutable, generic, SeqLike, AbstractSeq } +import scala.collection.{ mutable, immutable, generic, SeqLike, AbstractSeq } import mutable.{ Builder, ListBuffer } import generic.{ CanBuildFrom } -import language.implicitConversions +import scala.language.implicitConversions /** This object ... * diff --git a/src/library/scala/xml/Utility.scala b/src/library/scala/xml/Utility.scala index bae529c85c..50a284d7cd 100755 --- a/src/library/scala/xml/Utility.scala +++ b/src/library/scala/xml/Utility.scala @@ -10,7 +10,7 @@ package scala.xml import scala.collection.mutable import parsing.XhtmlEntities -import language.implicitConversions +import scala.language.implicitConversions /** * The `Utility` object provides utility functions for processing instances diff --git a/src/library/scala/xml/dtd/ContentModel.scala b/src/library/scala/xml/dtd/ContentModel.scala index a5d2a6bd7e..f98aff5709 100644 --- a/src/library/scala/xml/dtd/ContentModel.scala +++ b/src/library/scala/xml/dtd/ContentModel.scala @@ -11,9 +11,9 @@ package scala.xml package dtd -import util.regexp.WordExp -import util.automata._ -import Utility.sbToString +import scala.util.regexp.WordExp +import scala.util.automata._ +import scala.xml.Utility.sbToString import PartialFunction._ object ContentModel extends WordExp { diff --git a/src/library/scala/xml/pull/XMLEventReader.scala b/src/library/scala/xml/pull/XMLEventReader.scala index c764d042c8..07fab27957 100755 --- a/src/library/scala/xml/pull/XMLEventReader.scala +++ b/src/library/scala/xml/pull/XMLEventReader.scala @@ -24,7 +24,7 @@ import scala.xml.parsing.{ ExternalSources, MarkupHandler, MarkupParser } * @author Paul Phillips */ class XMLEventReader(src: Source) -extends collection.AbstractIterator[XMLEvent] +extends scala.collection.AbstractIterator[XMLEvent] with ProducerConsumerIterator[XMLEvent] { // We implement a pull parser as an iterator, but since we may be operating on diff --git a/src/partest/scala/tools/partest/PartestDefaults.scala b/src/partest/scala/tools/partest/PartestDefaults.scala index 73a7b92778..b27ce6ff75 100644 --- a/src/partest/scala/tools/partest/PartestDefaults.scala +++ b/src/partest/scala/tools/partest/PartestDefaults.scala @@ -2,7 +2,7 @@ package scala.tools package partest import nsc.io.{ File, Path, Directory } -import util.{ PathResolver } +import scala.tools.util.PathResolver import nsc.Properties.{ propOrElse, propOrNone, propOrEmpty } import java.lang.Runtime.getRuntime diff --git a/src/partest/scala/tools/partest/TestUtil.scala b/src/partest/scala/tools/partest/TestUtil.scala index b86a8e2c7f..9bfd444180 100644 --- a/src/partest/scala/tools/partest/TestUtil.scala +++ b/src/partest/scala/tools/partest/TestUtil.scala @@ -1,5 +1,7 @@ package scala.tools.partest +import scala.reflect.{ classTag, ClassTag } + trait TestUtil { /** Given function and block of code, evaluates code block, * calls function with nanoseconds elapsed, and returns block result. @@ -29,8 +31,16 @@ trait TestUtil { assert(mult <= acceptableMultiple, "Performance difference too great: multiple = " + mult) } + + def intercept[T <: Exception : ClassTag](code: => Unit): Unit = + try { + code + assert(false, "did not throw " + classTag[T]) + } catch { + case ex: Exception if classTag[T].runtimeClass isInstance ex => + } } object TestUtil extends TestUtil { -}
\ No newline at end of file +} diff --git a/src/partest/scala/tools/partest/nest/FileManager.scala b/src/partest/scala/tools/partest/nest/FileManager.scala index 064b82da85..512c718040 100644 --- a/src/partest/scala/tools/partest/nest/FileManager.scala +++ b/src/partest/scala/tools/partest/nest/FileManager.scala @@ -13,7 +13,7 @@ import java.io.{File, FilenameFilter, IOException, StringWriter, FileReader, PrintWriter, FileWriter} import java.net.URI import scala.tools.nsc.io.{ Path, Directory, File => SFile } -import sys.process._ +import scala.sys.process._ import scala.collection.mutable trait FileUtil { diff --git a/src/partest/scala/tools/partest/nest/RunnerManager.scala b/src/partest/scala/tools/partest/nest/RunnerManager.scala index 43ea0c7104..d283a6b476 100644 --- a/src/partest/scala/tools/partest/nest/RunnerManager.scala +++ b/src/partest/scala/tools/partest/nest/RunnerManager.scala @@ -312,8 +312,8 @@ class RunnerManager(kind: String, val fileManager: FileManager, params: TestRunP val testFiles = dir.listFiles.toList filter isJavaOrScala def isInGroup(f: File, num: Int) = SFile(f).stripExtension endsWith ("_" + num) - val groups = (0 to 9).toList map (num => testFiles filter (f => isInGroup(f, num))) - val noGroupSuffix = testFiles filterNot (groups.flatten contains) + val groups = (0 to 9).toList map (num => (testFiles filter (f => isInGroup(f, num))).sorted) + val noGroupSuffix = (testFiles filterNot (groups.flatten contains)).sorted noGroupSuffix :: groups filterNot (_.isEmpty) } diff --git a/src/partest/scala/tools/partest/nest/SBTRunner.scala b/src/partest/scala/tools/partest/nest/SBTRunner.scala index 6fa31492f3..206ee19c76 100644 --- a/src/partest/scala/tools/partest/nest/SBTRunner.scala +++ b/src/partest/scala/tools/partest/nest/SBTRunner.scala @@ -4,7 +4,7 @@ package nest import java.io.File import scala.tools.nsc.io.{ Directory } import scala.util.Properties.setProp -import collection.JavaConverters._ +import scala.collection.JavaConverters._ object SBTRunner extends DirectRunner { diff --git a/src/partest/scala/tools/partest/package.scala b/src/partest/scala/tools/partest/package.scala index 09eb4b66f1..69d0ce9e4c 100644 --- a/src/partest/scala/tools/partest/package.scala +++ b/src/partest/scala/tools/partest/package.scala @@ -6,7 +6,7 @@ package scala.tools import java.io.{ FileNotFoundException, File => JFile } import nsc.io.{ Path, Directory, File => SFile } -import util.{ PathResolver } +import scala.tools.util.PathResolver import nsc.Properties.{ propOrElse, propOrNone, propOrEmpty } import scala.sys.process.javaVmArguments import java.util.concurrent.Callable @@ -62,7 +62,7 @@ package object partest { ) def allPropertiesString = { - import collection.JavaConversions._ + import scala.collection.JavaConversions._ System.getProperties.toList.sorted map { case (k, v) => "%s -> %s\n".format(k, v) } mkString "" } @@ -73,4 +73,30 @@ package object partest { def isPartestDebug: Boolean = propOrEmpty("partest.debug") == "true" + + import language.experimental.macros + + /** + * `trace("".isEmpty)` will return `true` and as a side effect print the following to standard out. + * {{{ + * trace> "".isEmpty + * res: Boolean = true + * + * }}} + * + * An alternative to [[scala.tools.partest.ReplTest]] that avoids the inconvenience of embedding + * test code in a string. + */ + def trace[A](a: A) = macro traceImpl[A] + + import scala.reflect.macros.Context + def traceImpl[A: c.WeakTypeTag](c: Context)(a: c.Expr[A]): c.Expr[A] = { + import c.universe._ + val exprCode = c.literal(show(a.tree)) + val exprType = c.literal(show(a.actualType)) + reify { + println(s"trace> ${exprCode.splice}\nres: ${exprType.splice} = ${a.splice}\n") + a.splice + } + } } diff --git a/src/reflect/scala/reflect/api/Printers.scala b/src/reflect/scala/reflect/api/Printers.scala index 27d3b8ba7d..65ff2ed9fa 100644 --- a/src/reflect/scala/reflect/api/Printers.scala +++ b/src/reflect/scala/reflect/api/Printers.scala @@ -23,7 +23,7 @@ trait Printers { self: Universe => case class BooleanFlag(val value: Option[Boolean]) object BooleanFlag { - import language.implicitConversions + import scala.language.implicitConversions implicit def booleanToBooleanFlag(value: Boolean): BooleanFlag = BooleanFlag(Some(value)) implicit def optionToBooleanFlag(value: Option[Boolean]): BooleanFlag = BooleanFlag(value) } diff --git a/src/reflect/scala/reflect/api/Symbols.scala b/src/reflect/scala/reflect/api/Symbols.scala index d167099979..1fbbc0c0a4 100644 --- a/src/reflect/scala/reflect/api/Symbols.scala +++ b/src/reflect/scala/reflect/api/Symbols.scala @@ -140,18 +140,6 @@ trait Symbols extends base.Symbols { self: Universe => */ def isErroneous : Boolean - /** Can this symbol be loaded by a reflective mirror? - * - * Scalac relies on `ScalaSignature' annotation to retain symbols across compilation runs. - * Such annotations (also called "pickles") are applied on top-level classes and include information - * about all symbols reachable from the annotee. However, local symbols (e.g. classes or definitions local to a block) - * are typically unreachable and information about them gets lost. - * - * This method is useful for macro writers who wish to save certain ASTs to be used at runtime. - * With `isLocatable' it's possible to check whether a tree can be retained as is, or it needs special treatment. - */ - def isLocatable: Boolean - /** Is this symbol static (i.e. with no outer instance)? * Q: When exactly is a sym marked as STATIC? * A: If it's a member of a toplevel object, or of an object contained in a toplevel object, or any number of levels deep. diff --git a/src/reflect/scala/reflect/internal/BaseTypeSeqs.scala b/src/reflect/scala/reflect/internal/BaseTypeSeqs.scala index 554b3bfca6..539984c67f 100644 --- a/src/reflect/scala/reflect/internal/BaseTypeSeqs.scala +++ b/src/reflect/scala/reflect/internal/BaseTypeSeqs.scala @@ -7,7 +7,7 @@ package internal // todo implement in terms of BitSet import scala.collection.{ mutable, immutable } -import math.max +import scala.math.max import util.Statistics /** A base type sequence (BaseTypeSeq) is an ordered sequence spanning all the base types @@ -99,7 +99,7 @@ trait BaseTypeSeqs { def copy(head: Type, offset: Int): BaseTypeSeq = { val arr = new Array[Type](elems.length + offset) - compat.Platform.arraycopy(elems, 0, arr, offset, elems.length) + scala.compat.Platform.arraycopy(elems, 0, arr, offset, elems.length) arr(0) = head newBaseTypeSeq(parents, arr) } diff --git a/src/reflect/scala/reflect/internal/BuildUtils.scala b/src/reflect/scala/reflect/internal/BuildUtils.scala index 74b9442076..f7371f4180 100644 --- a/src/reflect/scala/reflect/internal/BuildUtils.scala +++ b/src/reflect/scala/reflect/internal/BuildUtils.scala @@ -30,14 +30,11 @@ trait BuildUtils extends base.BuildUtils { self: SymbolTable => else MissingRequirementError.notFound("overloaded method %s #%d in %s".format(name, index, owner.fullName)) } - def newFreeTerm(name: String, info: Type, value: => Any, flags: Long = 0L, origin: String = null): FreeTermSymbol = - newFreeTermSymbol(newTermName(name), info, value, flags, origin) + def newFreeTerm(name: String, value: => Any, flags: Long = 0L, origin: String = null): FreeTermSymbol = + newFreeTermSymbol(newTermName(name), value, flags, origin) - def newFreeType(name: String, info: Type, value: => Any, flags: Long = 0L, origin: String = null): FreeTypeSymbol = - newFreeTypeSymbol(newTypeName(name), info, value, (if (flags == 0L) PARAM else flags) | DEFERRED, origin) - - def newFreeExistential(name: String, info: Type, value: => Any, flags: Long = 0L, origin: String = null): FreeTypeSymbol = - newFreeTypeSymbol(newTypeName(name), info, value, (if (flags == 0L) EXISTENTIAL else flags) | DEFERRED, origin) + def newFreeType(name: String, flags: Long = 0L, origin: String = null): FreeTypeSymbol = + newFreeTypeSymbol(newTypeName(name), flags, origin) def newNestedSymbol(owner: Symbol, name: Name, pos: Position, flags: Long, isClass: Boolean): Symbol = owner.newNestedSymbol(name, pos, flags, isClass) diff --git a/src/reflect/scala/reflect/internal/Chars.scala b/src/reflect/scala/reflect/internal/Chars.scala index 6ece733b06..e5e5325b93 100644 --- a/src/reflect/scala/reflect/internal/Chars.scala +++ b/src/reflect/scala/reflect/internal/Chars.scala @@ -5,9 +5,9 @@ package scala.reflect package internal -import annotation.{ tailrec, switch } +import scala.annotation.{ tailrec, switch } import java.lang.{ Character => JCharacter } -import language.postfixOps +import scala.language.postfixOps /** Contains constants and classifier methods for characters */ trait Chars { diff --git a/src/reflect/scala/reflect/internal/ClassfileConstants.scala b/src/reflect/scala/reflect/internal/ClassfileConstants.scala index 906dfb95fb..54570e478f 100644 --- a/src/reflect/scala/reflect/internal/ClassfileConstants.scala +++ b/src/reflect/scala/reflect/internal/ClassfileConstants.scala @@ -6,7 +6,7 @@ package scala.reflect package internal -import annotation.switch +import scala.annotation.switch object ClassfileConstants { diff --git a/src/reflect/scala/reflect/internal/Constants.scala b/src/reflect/scala/reflect/internal/Constants.scala index e5a543da46..61fa553484 100644 --- a/src/reflect/scala/reflect/internal/Constants.scala +++ b/src/reflect/scala/reflect/internal/Constants.scala @@ -7,7 +7,7 @@ package scala.reflect package internal import java.lang.Integer.toOctalString -import annotation.switch +import scala.annotation.switch trait Constants extends api.Constants { self: SymbolTable => @@ -31,6 +31,9 @@ trait Constants extends api.Constants { final val EnumTag = 13 case class Constant(value: Any) extends ConstantApi { + import java.lang.Double.doubleToRawLongBits + import java.lang.Float.floatToRawIntBits + val tag: Int = value match { case null => NullTag case x: Unit => UnitTag @@ -81,10 +84,10 @@ trait Constants extends api.Constants { /** We need the equals method to take account of tags as well as values. */ + // !!! In what circumstance could `equalHashValue == that.equalHashValue && tag != that.tag` be true? override def equals(other: Any): Boolean = other match { case that: Constant => - this.tag == that.tag && - (this.value == that.value || this.isNaN && that.isNaN) + this.tag == that.tag && equalHashValue == that.equalHashValue case _ => false } @@ -236,7 +239,30 @@ trait Constants extends api.Constants { def typeValue: Type = value.asInstanceOf[Type] def symbolValue: Symbol = value.asInstanceOf[Symbol] - override def hashCode: Int = value.## * 41 + 17 + /** + * Consider two `NaN`s to be identical, despite non-equality + * Consider -0d to be distinct from 0d, despite equality + * + * We use the raw versions (i.e. `floatToRawIntBits` rather than `floatToIntBits`) + * to avoid treating different encodings of `NaN` as the same constant. + * You probably can't express different `NaN` varieties as compile time + * constants in regular Scala code, but it is conceivable that you could + * conjure them with a macro. + */ + private def equalHashValue: Any = value match { + case f: Float => floatToRawIntBits(f) + case d: Double => doubleToRawLongBits(d) + case v => v + } + + override def hashCode: Int = { + import scala.util.hashing.MurmurHash3._ + val seed = 17 + var h = seed + h = mix(h, tag.##) // include tag in the hash, otherwise 0, 0d, 0L, 0f collide. + h = mix(h, equalHashValue.##) + finalizeHash(h, length = 2) + } } object Constant extends ConstantExtractor diff --git a/src/reflect/scala/reflect/internal/Definitions.scala b/src/reflect/scala/reflect/internal/Definitions.scala index 9fddd1bb7f..c6b55c8511 100644 --- a/src/reflect/scala/reflect/internal/Definitions.scala +++ b/src/reflect/scala/reflect/internal/Definitions.scala @@ -6,7 +6,7 @@ package scala.reflect package internal -import annotation.{ switch, meta } +import scala.annotation.{ switch, meta } import scala.collection.{ mutable, immutable } import Flags._ import PartialFunction._ @@ -277,6 +277,7 @@ trait Definitions extends api.StandardDefinitions { anyval }).asInstanceOf[ClassSymbol] lazy val AnyValTpe = definitions.AnyValClass.toTypeConstructor + def AnyVal_getClass = getMemberMethod(AnyValClass, nme.getClass_) // bottom types lazy val RuntimeNothingClass = getClassByName(fulltpnme.RuntimeNothing) @@ -507,8 +508,8 @@ trait Definitions extends api.StandardDefinitions { lazy val ClassTagModule = requiredModule[scala.reflect.ClassTag[_]] lazy val ClassTagClass = requiredClass[scala.reflect.ClassTag[_]] lazy val TypeTagsClass = requiredClass[scala.reflect.base.TypeTags] - lazy val AbsTypeTagClass = getMemberClass(TypeTagsClass, tpnme.AbsTypeTag) - lazy val AbsTypeTagModule = getMemberModule(TypeTagsClass, nme.AbsTypeTag) + lazy val WeakTypeTagClass = getMemberClass(TypeTagsClass, tpnme.WeakTypeTag) + lazy val WeakTypeTagModule = getMemberModule(TypeTagsClass, nme.WeakTypeTag) lazy val TypeTagClass = getMemberClass(TypeTagsClass, tpnme.TypeTag) lazy val TypeTagModule = getMemberModule(TypeTagsClass, nme.TypeTag) @@ -529,7 +530,7 @@ trait Definitions extends api.StandardDefinitions { lazy val MacroImplAnnotation = requiredClass[scala.reflect.macros.internal.macroImpl] lazy val MacroInternalPackage = getPackageObject("scala.reflect.macros.internal") def MacroInternal_materializeClassTag = getMemberMethod(MacroInternalPackage, nme.materializeClassTag) - def MacroInternal_materializeAbsTypeTag = getMemberMethod(MacroInternalPackage, nme.materializeAbsTypeTag) + def MacroInternal_materializeWeakTypeTag = getMemberMethod(MacroInternalPackage, nme.materializeWeakTypeTag) def MacroInternal_materializeTypeTag = getMemberMethod(MacroInternalPackage, nme.materializeTypeTag) lazy val StringContextClass = requiredClass[scala.StringContext] @@ -544,8 +545,8 @@ trait Definitions extends api.StandardDefinitions { lazy val NoneModule: ModuleSymbol = requiredModule[scala.None.type] lazy val SomeModule: ModuleSymbol = requiredModule[scala.Some.type] - def compilerTypeFromTag(tt: BaseUniverse # AbsTypeTag[_]): Type = tt.in(rootMirror).tpe - def compilerSymbolFromTag(tt: BaseUniverse # AbsTypeTag[_]): Symbol = tt.in(rootMirror).tpe.typeSymbol + def compilerTypeFromTag(tt: BaseUniverse # WeakTypeTag[_]): Type = tt.in(rootMirror).tpe + def compilerSymbolFromTag(tt: BaseUniverse # WeakTypeTag[_]): Symbol = tt.in(rootMirror).tpe.typeSymbol // The given symbol represents either String.+ or StringAdd.+ def isStringAddition(sym: Symbol) = sym == String_+ || sym == StringAdd_+ @@ -943,6 +944,8 @@ trait Definitions extends api.StandardDefinitions { lazy val CloneableAttr = requiredClass[scala.annotation.cloneable] lazy val DeprecatedAttr = requiredClass[scala.deprecated] lazy val DeprecatedNameAttr = requiredClass[scala.deprecatedName] + lazy val DeprecatedInheritanceAttr = requiredClass[scala.deprecatedInheritance] + lazy val DeprecatedOverridingAttr = requiredClass[scala.deprecatedOverriding] lazy val NativeAttr = requiredClass[scala.native] lazy val RemoteAttr = requiredClass[scala.remote] lazy val ScalaInlineClass = requiredClass[scala.inline] diff --git a/src/reflect/scala/reflect/internal/FlagSets.scala b/src/reflect/scala/reflect/internal/FlagSets.scala index b03d01c944..6270416d4f 100644 --- a/src/reflect/scala/reflect/internal/FlagSets.scala +++ b/src/reflect/scala/reflect/internal/FlagSets.scala @@ -1,7 +1,7 @@ package scala.reflect package internal -import language.implicitConversions +import scala.language.implicitConversions trait FlagSets extends api.FlagSets { self: SymbolTable => diff --git a/src/reflect/scala/reflect/internal/Importers.scala b/src/reflect/scala/reflect/internal/Importers.scala index 4b3eb0cdc4..87058df732 100644 --- a/src/reflect/scala/reflect/internal/Importers.scala +++ b/src/reflect/scala/reflect/internal/Importers.scala @@ -72,9 +72,9 @@ trait Importers extends api.Importers { self: SymbolTable => case x: from.ModuleSymbol => linkReferenced(myowner.newModuleSymbol(myname, mypos, myflags), x, importSymbol) case x: from.FreeTermSymbol => - newFreeTermSymbol(importName(x.name).toTermName, importType(x.info), x.value, x.flags, x.origin) + newFreeTermSymbol(importName(x.name).toTermName, x.value, x.flags, x.origin) setInfo importType(x.info) case x: from.FreeTypeSymbol => - newFreeTypeSymbol(importName(x.name).toTypeName, importType(x.info), x.value, x.flags, x.origin) + newFreeTypeSymbol(importName(x.name).toTypeName, x.flags, x.origin) case x: from.TermSymbol => linkReferenced(myowner.newValue(myname, mypos, myflags), x, importSymbol) case x: from.TypeSkolem => diff --git a/src/reflect/scala/reflect/internal/Names.scala b/src/reflect/scala/reflect/internal/Names.scala index 2fdf27d847..0f42db95e3 100644 --- a/src/reflect/scala/reflect/internal/Names.scala +++ b/src/reflect/scala/reflect/internal/Names.scala @@ -8,7 +8,7 @@ package internal import scala.io.Codec import java.security.MessageDigest -import language.implicitConversions +import scala.language.implicitConversions trait LowPriorityNames { self: Names => @@ -67,7 +67,7 @@ trait Names extends api.Names with LowPriorityNames { while (i < len) { if (nc + i == chrs.length) { val newchrs = new Array[Char](chrs.length * 2) - compat.Platform.arraycopy(chrs, 0, newchrs, 0, chrs.length) + scala.compat.Platform.arraycopy(chrs, 0, newchrs, 0, chrs.length) chrs = newchrs } chrs(nc + i) = cs(offset + i) @@ -149,11 +149,15 @@ trait Names extends api.Names with LowPriorityNames { type ThisNameType >: Null <: Name protected[this] def thisName: ThisNameType + // Note that "Name with ThisNameType" should be redundant + // because ThisNameType <: Name, but due to SI-6161 the + // compile loses track of this fact. + /** Index into name table */ def start: Int = index /** The next name in the same hash bucket. */ - def next: ThisNameType + def next: Name with ThisNameType /** The length of this name. */ final def length: Int = len @@ -169,17 +173,17 @@ trait Names extends api.Names with LowPriorityNames { def bothNames: List[Name] = List(toTermName, toTypeName) /** Return the subname with characters from from to to-1. */ - def subName(from: Int, to: Int): ThisNameType + def subName(from: Int, to: Int): Name with ThisNameType /** Return a new name of the same variety. */ - def newName(str: String): ThisNameType + def newName(str: String): Name with ThisNameType /** Return a new name based on string transformation. */ - def mapName(f: String => String): ThisNameType = newName(f(toString)) + def mapName(f: String => String): Name with ThisNameType = newName(f(toString)) /** Copy bytes of this name to buffer cs, starting at position `offset`. */ final def copyChars(cs: Array[Char], offset: Int) = - compat.Platform.arraycopy(chrs, index, cs, offset, len) + scala.compat.Platform.arraycopy(chrs, index, cs, offset, len) /** @return the ascii representation of this name */ final def toChars: Array[Char] = { @@ -195,7 +199,7 @@ trait Names extends api.Names with LowPriorityNames { */ final def copyUTF8(bs: Array[Byte], offset: Int): Int = { val bytes = Codec.toUTF8(chrs, index, len) - compat.Platform.arraycopy(bytes, 0, bs, offset, bytes.length) + scala.compat.Platform.arraycopy(bytes, 0, bs, offset, bytes.length) offset + bytes.length } diff --git a/src/reflect/scala/reflect/internal/Printers.scala b/src/reflect/scala/reflect/internal/Printers.scala index 9580ed1f72..c23d22efab 100644 --- a/src/reflect/scala/reflect/internal/Printers.scala +++ b/src/reflect/scala/reflect/internal/Printers.scala @@ -10,7 +10,7 @@ package internal import java.io.{ OutputStream, PrintWriter, StringWriter, Writer } import Flags._ -import compat.Platform.EOL +import scala.compat.Platform.EOL trait Printers extends api.Printers { self: SymbolTable => diff --git a/src/reflect/scala/reflect/internal/StdNames.scala b/src/reflect/scala/reflect/internal/StdNames.scala index f63e2602b1..e70531df6e 100644 --- a/src/reflect/scala/reflect/internal/StdNames.scala +++ b/src/reflect/scala/reflect/internal/StdNames.scala @@ -8,8 +8,8 @@ package internal import java.security.MessageDigest import Chars.isOperatorPart -import annotation.switch -import language.implicitConversions +import scala.annotation.switch +import scala.language.implicitConversions import scala.collection.immutable import scala.io.Codec @@ -131,7 +131,7 @@ trait StdNames { final val Seq: NameType = "Seq" final val Symbol: NameType = "Symbol" final val ClassTag: NameType = "ClassTag" - final val AbsTypeTag: NameType = "AbsTypeTag" + final val WeakTypeTag: NameType = "WeakTypeTag" final val TypeTag : NameType = "TypeTag" final val Expr: NameType = "Expr" final val String: NameType = "String" @@ -704,14 +704,13 @@ trait StdNames { val manifestToTypeTag: NameType = "manifestToTypeTag" val map: NameType = "map" val materializeClassTag: NameType = "materializeClassTag" - val materializeAbsTypeTag: NameType = "materializeAbsTypeTag" + val materializeWeakTypeTag: NameType = "materializeWeakTypeTag" val materializeTypeTag: NameType = "materializeTypeTag" val mirror : NameType = "mirror" val moduleClass : NameType = "moduleClass" val name: NameType = "name" val ne: NameType = "ne" val newArray: NameType = "newArray" - val newFreeExistential: NameType = "newFreeExistential" val newFreeTerm: NameType = "newFreeTerm" val newFreeType: NameType = "newFreeType" val newNestedSymbol: NameType = "newNestedSymbol" diff --git a/src/reflect/scala/reflect/internal/SymbolTable.scala b/src/reflect/scala/reflect/internal/SymbolTable.scala index c0b933698b..90e49f2043 100644 --- a/src/reflect/scala/reflect/internal/SymbolTable.scala +++ b/src/reflect/scala/reflect/internal/SymbolTable.scala @@ -47,6 +47,8 @@ abstract class SymbolTable extends macros.Universe def globalError(msg: String): Unit = abort(msg) def abort(msg: String): Nothing = throw new FatalError(supplementErrorMessage(msg)) + def shouldLogAtThisPhase = false + @deprecated("Give us a reason", "2.10.0") def abort(): Nothing = abort("unknown error") diff --git a/src/reflect/scala/reflect/internal/Symbols.scala b/src/reflect/scala/reflect/internal/Symbols.scala index 2a8249ebe7..b7f3ef0bf8 100644 --- a/src/reflect/scala/reflect/internal/Symbols.scala +++ b/src/reflect/scala/reflect/internal/Symbols.scala @@ -48,13 +48,13 @@ trait Symbols extends api.Symbols { self: SymbolTable => /** Create a new free term. Its owner is NoSymbol. */ - def newFreeTermSymbol(name: TermName, info: Type, value: => Any, flags: Long = 0L, origin: String): FreeTermSymbol = - new FreeTermSymbol(name, value, origin) initFlags flags setInfo info + def newFreeTermSymbol(name: TermName, value: => Any, flags: Long = 0L, origin: String): FreeTermSymbol = + new FreeTermSymbol(name, value, origin) initFlags flags /** Create a new free type. Its owner is NoSymbol. */ - def newFreeTypeSymbol(name: TypeName, info: Type, value: => Any, flags: Long = 0L, origin: String): FreeTypeSymbol = - new FreeTypeSymbol(name, value, origin) initFlags flags setInfo info + def newFreeTypeSymbol(name: TypeName, flags: Long = 0L, origin: String): FreeTypeSymbol = + new FreeTypeSymbol(name, origin) initFlags flags /** The original owner of a class. Used by the backend to generate * EnclosingMethod attributes. @@ -114,7 +114,12 @@ trait Symbols extends api.Symbols { self: SymbolTable => // with the proper specific type. def rawname: NameType def name: NameType - def name_=(n: Name): Unit + def name_=(n: Name): Unit = { + if (shouldLogAtThisPhase) { + val msg = s"Renaming $fullLocationString to $n" + if (isSpecialized) debuglog(msg) else log(msg) + } + } def asNameType(n: Name): NameType private[this] var _rawowner = initOwner // Syncnote: need not be protected, as only assignment happens in owner_=, which is not exposed to api @@ -697,6 +702,18 @@ trait Symbols extends api.Symbols { self: SymbolTable => def deprecationMessage = getAnnotation(DeprecatedAttr) flatMap (_ stringArg 0) def deprecationVersion = getAnnotation(DeprecatedAttr) flatMap (_ stringArg 1) def deprecatedParamName = getAnnotation(DeprecatedNameAttr) flatMap (_ symbolArg 0) + def hasDeprecatedInheritanceAnnotation + = hasAnnotation(DeprecatedInheritanceAttr) + def deprecatedInheritanceMessage + = getAnnotation(DeprecatedInheritanceAttr) flatMap (_ stringArg 0) + def deprecatedInheritanceVersion + = getAnnotation(DeprecatedInheritanceAttr) flatMap (_ stringArg 1) + def hasDeprecatedOverridingAnnotation + = hasAnnotation(DeprecatedOverridingAttr) + def deprecatedOverridingMessage + = getAnnotation(DeprecatedOverridingAttr) flatMap (_ stringArg 0) + def deprecatedOverridingVersion + = getAnnotation(DeprecatedOverridingAttr) flatMap (_ stringArg 1) // !!! when annotation arguments are not literal strings, but any sort of // assembly of strings, there is a fair chance they will turn up here not as @@ -861,7 +878,16 @@ trait Symbols extends api.Symbols { self: SymbolTable => final def isInitialized: Boolean = validTo != NoPeriod - /** Determines whether this symbol can be loaded by subsequent reflective compilation */ + /** Can this symbol be loaded by a reflective mirror? + * + * Scalac relies on `ScalaSignature' annotation to retain symbols across compilation runs. + * Such annotations (also called "pickles") are applied on top-level classes and include information + * about all symbols reachable from the annotee. However, local symbols (e.g. classes or definitions local to a block) + * are typically unreachable and information about them gets lost. + * + * This method is useful for macro writers who wish to save certain ASTs to be used at runtime. + * With `isLocatable' it's possible to check whether a tree can be retained as is, or it needs special treatment. + */ final def isLocatable: Boolean = { if (this == NoSymbol) return false if (isRoot || isRootPackage) return true @@ -953,7 +979,7 @@ trait Symbols extends api.Symbols { self: SymbolTable => /** If this symbol has an expanded name, its original name, otherwise its name itself. * @see expandName */ - def originalName: Name = nme.originalName(name) + def originalName: Name = nme.originalName(nme.dropLocalSuffix(name)) /** The name of the symbol before decoding, e.g. `\$eq\$eq` instead of `==`. */ @@ -998,7 +1024,7 @@ trait Symbols extends api.Symbols { self: SymbolTable => private def fullNameInternal(separator: Char): Name = ( if (isRoot || isRootPackage || this == NoSymbol) name else if (owner.isEffectiveRoot) name - else effectiveOwner.enclClass.fullNameAsName(separator) append separator append name + else ((effectiveOwner.enclClass.fullNameAsName(separator) append separator): Name) append name ) def fullNameAsName(separator: Char): Name = nme.dropLocalSuffix(fullNameInternal(separator)) @@ -1803,26 +1829,16 @@ trait Symbols extends api.Symbols { self: SymbolTable => } else owner.enclosingTopLevelClass /** Is this symbol defined in the same scope and compilation unit as `that` symbol? */ - def isCoDefinedWith(that: Symbol) = { - (this.rawInfo ne NoType) && - (this.effectiveOwner == that.effectiveOwner) && { - !this.effectiveOwner.isPackageClass || - (this.sourceFile eq null) || - (that.sourceFile eq null) || - (this.sourceFile == that.sourceFile) || { - // recognize companion object in separate file and fail, else compilation - // appears to succeed but highly opaque errors come later: see bug #1286 - if (this.sourceFile.path != that.sourceFile.path) { - // The cheaper check can be wrong: do the expensive normalization - // before failing. - if (this.sourceFile.canonicalPath != that.sourceFile.canonicalPath) - throw InvalidCompanions(this, that) - } - - false - } - } - } + def isCoDefinedWith(that: Symbol) = ( + (this.rawInfo ne NoType) + && (this.effectiveOwner == that.effectiveOwner) + && ( !this.effectiveOwner.isPackageClass + || (this.sourceFile eq null) + || (that.sourceFile eq null) + || (this.sourceFile.path == that.sourceFile.path) // Cheap possibly wrong check, then expensive normalization + || (this.sourceFile.canonicalPath == that.sourceFile.canonicalPath) + ) + ) /** The internal representation of classes and objects: * @@ -2201,10 +2217,10 @@ trait Symbols extends api.Symbols { self: SymbolTable => * If settings.Yshowsymkinds, adds abbreviated symbol kind. */ def nameString: String = ( - if (!settings.uniqid.value && !settings.Yshowsymkinds.value) "" + decodedName - else if (settings.uniqid.value && !settings.Yshowsymkinds.value) decodedName + "#" + id - else if (!settings.uniqid.value && settings.Yshowsymkinds.value) decodedName + "#" + abbreviatedKindString - else decodedName + "#" + id + "#" + abbreviatedKindString + if (!settings.uniqid.value && !settings.Yshowsymkinds.value) "" + originalName.decode + else if (settings.uniqid.value && !settings.Yshowsymkinds.value) originalName.decode + "#" + id + else if (!settings.uniqid.value && settings.Yshowsymkinds.value) originalName.decode + "#" + abbreviatedKindString + else originalName.decode + "#" + id + "#" + abbreviatedKindString ) def fullNameString: String = { @@ -2314,9 +2330,9 @@ trait Symbols extends api.Symbols { self: SymbolTable => if (Statistics.hotEnabled) Statistics.incCounter(nameCount) _rawname } - def name_=(name: Name) { + override def name_=(name: Name) { if (name != rawname) { - log("Renaming %s %s %s to %s".format(shortSymbolClass, debugFlagString, rawname, name)) + super.name_=(name) // logging changeNameInOwners(name) _rawname = name.toTermName } @@ -2587,9 +2603,9 @@ trait Symbols extends api.Symbols { self: SymbolTable => // TODO - don't allow names to be renamed in this unstructured a fashion. // Rename as little as possible. Enforce invariants on all renames. - def name_=(name: Name) { + override def name_=(name: Name) { if (name != rawname) { - log("Renaming %s %s %s to %s".format(shortSymbolClass, debugFlagString, rawname, name)) + super.name_=(name) // logging changeNameInOwners(name) _rawname = name.toTypeName } @@ -3038,9 +3054,7 @@ trait Symbols extends api.Symbols { self: SymbolTable => } implicit val FreeTermSymbolTag = ClassTag[FreeTermSymbol](classOf[FreeTermSymbol]) - class FreeTypeSymbol(name0: TypeName, value0: => Any, val origin: String) extends TypeSkolem(NoSymbol, NoPosition, name0, NoSymbol) with FreeSymbol with FreeTypeSymbolApi { - def value = value0 - } + class FreeTypeSymbol(name0: TypeName, val origin: String) extends TypeSkolem(NoSymbol, NoPosition, name0, NoSymbol) with FreeSymbol with FreeTypeSymbolApi implicit val FreeTypeSymbolTag = ClassTag[FreeTypeSymbol](classOf[FreeTypeSymbol]) /** An object representing a missing symbol */ @@ -3051,7 +3065,7 @@ trait Symbols extends api.Symbols { self: SymbolTable => def asNameType(n: Name) = n.toTermName def rawname = nme.NO_NAME def name = nme.NO_NAME - def name_=(n: Name) = abort("Cannot set NoSymbol's name to " + n) + override def name_=(n: Name) = abort("Cannot set NoSymbol's name to " + n) synchronized { setInfo(NoType) @@ -3175,13 +3189,6 @@ trait Symbols extends api.Symbols { self: SymbolTable => if (settings.debug.value) printStackTrace() } - case class InvalidCompanions(sym1: Symbol, sym2: Symbol) extends Throwable({ - "Companions '" + sym1 + "' and '" + sym2 + "' must be defined in same file:\n" + - " Found in " + sym1.sourceFile.canonicalPath + " and " + sym2.sourceFile.canonicalPath - }) { - override def toString = getMessage - } - /** A class for type histories */ private sealed case class TypeHistory(var validFrom: Period, info: Type, prev: TypeHistory) { assert((prev eq null) || phaseId(validFrom) > phaseId(prev.validFrom), this) diff --git a/src/reflect/scala/reflect/internal/TreeInfo.scala b/src/reflect/scala/reflect/internal/TreeInfo.scala index 39fc5e6fcc..77cbbd936b 100644 --- a/src/reflect/scala/reflect/internal/TreeInfo.scala +++ b/src/reflect/scala/reflect/internal/TreeInfo.scala @@ -67,7 +67,7 @@ abstract class TreeInfo { /** Is tree an expression which can be inlined without affecting program semantics? * - * Note that this is not called "isExprSafeToInline" since purity (lack of side-effects) + * Note that this is not called "isExprPure" since purity (lack of side-effects) * is not the litmus test. References to modules and lazy vals are side-effecting, * both because side-effecting code may be executed and because the first reference * takes a different code path than all to follow; but they are safe to inline diff --git a/src/reflect/scala/reflect/internal/Trees.scala b/src/reflect/scala/reflect/internal/Trees.scala index 4455341faa..0c40925858 100644 --- a/src/reflect/scala/reflect/internal/Trees.scala +++ b/src/reflect/scala/reflect/internal/Trees.scala @@ -8,7 +8,7 @@ package internal import Flags._ import base.Attachments -import collection.mutable.{ListBuffer, LinkedHashSet} +import scala.collection.mutable.{ListBuffer, LinkedHashSet} import util.Statistics trait Trees extends api.Trees { self: SymbolTable => diff --git a/src/reflect/scala/reflect/internal/Types.scala b/src/reflect/scala/reflect/internal/Types.scala index ef328d4d1a..ea2dc50e38 100644 --- a/src/reflect/scala/reflect/internal/Types.scala +++ b/src/reflect/scala/reflect/internal/Types.scala @@ -319,25 +319,6 @@ trait Types extends api.Types { self: SymbolTable => def substituteSymbols(from: List[Symbol], to: List[Symbol]): Type = substSym(from, to) def substituteTypes(from: List[Symbol], to: List[Type]): Type = subst(from, to) - def isConcrete = { - def notConcreteSym(sym: Symbol) = - sym.isAbstractType && !sym.isExistential - - def notConcreteTpe(tpe: Type): Boolean = tpe match { - case ThisType(_) => false - case SuperType(_, _) => false - case SingleType(pre, sym) => notConcreteSym(sym) - case ConstantType(_) => false - case TypeRef(_, sym, args) => notConcreteSym(sym) || (args exists notConcreteTpe) - case RefinedType(_, _) => false - case ExistentialType(_, _) => false - case AnnotatedType(_, tp, _) => notConcreteTpe(tp) - case _ => true - } - - !notConcreteTpe(this) - } - // the only thingies that we want to splice are: 1) type parameters, 2) abstract type members // the thingies that we don't want to splice are: 1) concrete types (obviously), 2) existential skolems def isSpliceable = { @@ -3475,9 +3456,9 @@ trait Types extends api.Types { self: SymbolTable => } /** A temporary type representing the erasure of a user-defined value type. - * Created during phase reasure, eliminated again in posterasure. - * @param sym The value class symbol - * @param underlying The underlying type before erasure + * Created during phase erasure, eliminated again in posterasure. + * + * @param original The underlying type before erasure */ abstract case class ErasedValueType(original: TypeRef) extends UniqueType { override def safeToString = "ErasedValueType("+original+")" @@ -3956,13 +3937,15 @@ trait Types extends api.Types { self: SymbolTable => def avoidWiden: Boolean = avoidWidening def addLoBound(tp: Type, isNumericBound: Boolean = false) { - if (isNumericBound && isNumericValueType(tp)) { - if (numlo == NoType || isNumericSubType(numlo, tp)) - numlo = tp - else if (!isNumericSubType(tp, numlo)) - numlo = numericLoBound + if (!lobounds.contains(tp)) { + if (isNumericBound && isNumericValueType(tp)) { + if (numlo == NoType || isNumericSubType(numlo, tp)) + numlo = tp + else if (!isNumericSubType(tp, numlo)) + numlo = numericLoBound + } + else lobounds ::= tp } - else lobounds ::= tp } def checkWidening(tp: Type) { @@ -3974,14 +3957,16 @@ trait Types extends api.Types { self: SymbolTable => } def addHiBound(tp: Type, isNumericBound: Boolean = false) { - checkWidening(tp) - if (isNumericBound && isNumericValueType(tp)) { - if (numhi == NoType || isNumericSubType(tp, numhi)) - numhi = tp - else if (!isNumericSubType(numhi, tp)) - numhi = numericHiBound + if (!hibounds.contains(tp)) { + checkWidening(tp) + if (isNumericBound && isNumericValueType(tp)) { + if (numhi == NoType || isNumericSubType(tp, numhi)) + numhi = tp + else if (!isNumericSubType(numhi, tp)) + numhi = numericHiBound + } + else hibounds ::= tp } - else hibounds ::= tp } def isWithinBounds(tp: Type): Boolean = diff --git a/src/reflect/scala/reflect/internal/pickling/UnPickler.scala b/src/reflect/scala/reflect/internal/pickling/UnPickler.scala index 195f4a526e..20ab3fca68 100644 --- a/src/reflect/scala/reflect/internal/pickling/UnPickler.scala +++ b/src/reflect/scala/reflect/internal/pickling/UnPickler.scala @@ -14,13 +14,13 @@ import java.lang.Double.longBitsToDouble import Flags._ import PickleFormat._ import scala.collection.{ mutable, immutable } -import collection.mutable.ListBuffer -import annotation.switch +import scala.collection.mutable.ListBuffer +import scala.annotation.switch /** @author Martin Odersky * @version 1.0 */ -abstract class UnPickler /*extends reflect.generic.UnPickler*/ { +abstract class UnPickler /*extends scala.reflect.generic.UnPickler*/ { val global: SymbolTable import global._ diff --git a/src/reflect/scala/reflect/internal/transform/Transforms.scala b/src/reflect/scala/reflect/internal/transform/Transforms.scala index c4c5dc3a1c..71cc80895d 100644 --- a/src/reflect/scala/reflect/internal/transform/Transforms.scala +++ b/src/reflect/scala/reflect/internal/transform/Transforms.scala @@ -2,7 +2,7 @@ package scala.reflect package internal package transform -import language.existentials +import scala.language.existentials trait Transforms { self: SymbolTable => @@ -38,4 +38,4 @@ trait Transforms { self: SymbolTable => def transformedType(tpe: Type) = erasure.scalaErasure(uncurry.uncurry(tpe)) -}
\ No newline at end of file +} diff --git a/src/reflect/scala/reflect/internal/util/HashSet.scala b/src/reflect/scala/reflect/internal/util/HashSet.scala index 51e540e235..0d0f16372c 100644 --- a/src/reflect/scala/reflect/internal/util/HashSet.scala +++ b/src/reflect/scala/reflect/internal/util/HashSet.scala @@ -13,7 +13,7 @@ object HashSet { new HashSet[T](label, initialCapacity) } -class HashSet[T >: Null <: AnyRef](val label: String, initialCapacity: Int) extends Set[T] with collection.generic.Clearable { +class HashSet[T >: Null <: AnyRef](val label: String, initialCapacity: Int) extends Set[T] with scala.collection.generic.Clearable { private var used = 0 private var table = new Array[AnyRef](initialCapacity) private def index(x: Int): Int = math.abs(x % table.length) diff --git a/src/reflect/scala/reflect/internal/util/Position.scala b/src/reflect/scala/reflect/internal/util/Position.scala index e4c6e4aca1..0268881be7 100644 --- a/src/reflect/scala/reflect/internal/util/Position.scala +++ b/src/reflect/scala/reflect/internal/util/Position.scala @@ -6,9 +6,9 @@ package scala.reflect.internal.util -import reflect.ClassTag -import reflect.base.Attachments -import reflect.api.PositionApi +import scala.reflect.ClassTag +import scala.reflect.base.Attachments +import scala.reflect.api.PositionApi object Position { val tabInc = 8 @@ -274,4 +274,4 @@ class TransparentPosition(source: SourceFile, start: Int, point: Int, end: Int) override def isTransparent = true override def makeTransparent = this override def show = "<"+start+":"+end+">" -}
\ No newline at end of file +} diff --git a/src/reflect/scala/reflect/internal/util/SourceFile.scala b/src/reflect/scala/reflect/internal/util/SourceFile.scala index 747c1ad298..9a71e02e08 100644 --- a/src/reflect/scala/reflect/internal/util/SourceFile.scala +++ b/src/reflect/scala/reflect/internal/util/SourceFile.scala @@ -8,7 +8,7 @@ package scala.reflect.internal.util import scala.tools.nsc.io.{ AbstractFile, VirtualFile } import scala.collection.mutable.ArrayBuffer -import annotation.tailrec +import scala.annotation.tailrec import java.util.regex.Pattern import java.io.IOException import scala.reflect.internal.Chars._ @@ -107,15 +107,15 @@ class BatchSourceFile(val file : AbstractFile, val content0: Array[Char]) extend def this(sourceName: String, cs: Seq[Char]) = this(new VirtualFile(sourceName), cs.toArray) def this(file: AbstractFile, cs: Seq[Char]) = this(file, cs.toArray) - // If non-whitespace tokens run all the way up to EOF, - // positions go wrong because the correct end of the last - // token cannot be used as an index into the char array. - // The least painful way to address this was to add a - // newline to the array. - val content = ( - if (content0.length == 0 || !content0.last.isWhitespace) - content0 :+ '\n' - else content0 + // If non-whitespace tokens run all the way up to EOF, + // positions go wrong because the correct end of the last + // token cannot be used as an index into the char array. + // The least painful way to address this was to add a + // newline to the array. + val content = ( + if (content0.length == 0 || !content0.last.isWhitespace) + content0 :+ '\n' + else content0 ) val length = content.length def start = 0 diff --git a/src/reflect/scala/reflect/internal/util/Statistics.scala b/src/reflect/scala/reflect/internal/util/Statistics.scala index f7b81ca252..2c90d2d525 100644 --- a/src/reflect/scala/reflect/internal/util/Statistics.scala +++ b/src/reflect/scala/reflect/internal/util/Statistics.scala @@ -1,6 +1,6 @@ package scala.reflect.internal.util -import collection.mutable +import scala.collection.mutable object Statistics { diff --git a/src/reflect/scala/reflect/internal/util/TableDef.scala b/src/reflect/scala/reflect/internal/util/TableDef.scala index 2e60ce3bcc..8e2bcc2ff7 100644 --- a/src/reflect/scala/reflect/internal/util/TableDef.scala +++ b/src/reflect/scala/reflect/internal/util/TableDef.scala @@ -1,7 +1,7 @@ package scala.reflect.internal.util import TableDef._ -import language.postfixOps +import scala.language.postfixOps /** A class for representing tabular data in a way that preserves * its inner beauty. See Exceptional for an example usage. diff --git a/src/reflect/scala/reflect/internal/util/TraceSymbolActivity.scala b/src/reflect/scala/reflect/internal/util/TraceSymbolActivity.scala index 8331fdd033..46d80e9680 100644 --- a/src/reflect/scala/reflect/internal/util/TraceSymbolActivity.scala +++ b/src/reflect/scala/reflect/internal/util/TraceSymbolActivity.scala @@ -2,7 +2,7 @@ package scala.reflect.internal package util import scala.collection.{ mutable, immutable } -import language.postfixOps +import scala.language.postfixOps trait TraceSymbolActivity { val global: SymbolTable @@ -108,12 +108,12 @@ trait TraceSymbolActivity { sym.name.decode + "#" + sym.id } - private def freq[T, U](xs: collection.Traversable[T])(fn: T => U): List[(U, Int)] = { + private def freq[T, U](xs: scala.collection.Traversable[T])(fn: T => U): List[(U, Int)] = { val ys = xs groupBy fn mapValues (_.size) ys.toList sortBy (-_._2) } - private def showMapFreq[T](xs: collection.Map[T, Traversable[_]])(showFn: T => String) { + private def showMapFreq[T](xs: scala.collection.Map[T, Traversable[_]])(showFn: T => String) { xs.mapValues(_.size).toList.sortBy(-_._2) take 100 foreach { case (k, size) => show(size, showFn(k)) } diff --git a/src/reflect/scala/reflect/macros/Aliases.scala b/src/reflect/scala/reflect/macros/Aliases.scala index ad100d7e89..eff7f34b02 100644 --- a/src/reflect/scala/reflect/macros/Aliases.scala +++ b/src/reflect/scala/reflect/macros/Aliases.scala @@ -17,12 +17,12 @@ trait Aliases { type Expr[+T] = universe.Expr[T] val Expr = universe.Expr - type AbsTypeTag[T] = universe.AbsTypeTag[T] + type WeakTypeTag[T] = universe.WeakTypeTag[T] type TypeTag[T] = universe.TypeTag[T] - val AbsTypeTag = universe.AbsTypeTag + val WeakTypeTag = universe.WeakTypeTag val TypeTag = universe.TypeTag - def absTypeTag[T](implicit attag: AbsTypeTag[T]) = attag + def weakTypeTag[T](implicit attag: WeakTypeTag[T]) = attag def typeTag[T](implicit ttag: TypeTag[T]) = ttag - def absTypeOf[T](implicit attag: AbsTypeTag[T]): Type = attag.tpe + def weakTypeOf[T](implicit attag: WeakTypeTag[T]): Type = attag.tpe def typeOf[T](implicit ttag: TypeTag[T]): Type = ttag.tpe } diff --git a/src/reflect/scala/reflect/macros/Exprs.scala b/src/reflect/scala/reflect/macros/Exprs.scala index ceaab06d12..280d5508c8 100644 --- a/src/reflect/scala/reflect/macros/Exprs.scala +++ b/src/reflect/scala/reflect/macros/Exprs.scala @@ -4,5 +4,5 @@ package macros trait Exprs { self: Context => - def Expr[T: AbsTypeTag](tree: Tree): Expr[T] + def Expr[T: WeakTypeTag](tree: Tree): Expr[T] } diff --git a/src/reflect/scala/reflect/macros/Infrastructure.scala b/src/reflect/scala/reflect/macros/Infrastructure.scala index a8a8b814b1..f01725cd1d 100644 --- a/src/reflect/scala/reflect/macros/Infrastructure.scala +++ b/src/reflect/scala/reflect/macros/Infrastructure.scala @@ -86,7 +86,7 @@ trait Infrastructure { * Needs to be used with extreme care, since memory leaks here will swiftly crash the presentation compiler. * For example, Scala IDE typically launches a compiler run on every edit action so there might be hundreds of runs per minute. */ - val globalCache: collection.mutable.Map[Any, Any] + val globalCache: scala.collection.mutable.Map[Any, Any] /** A cache shared by all invocations of the same macro within a single compilation run. * @@ -95,5 +95,5 @@ trait Infrastructure { * * To share data between different macros and/or different compilation runs, use ``globalCache''. */ - val cache: collection.mutable.Map[Any, Any] + val cache: scala.collection.mutable.Map[Any, Any] } diff --git a/src/reflect/scala/reflect/macros/Reifiers.scala b/src/reflect/scala/reflect/macros/Reifiers.scala index 1bee17d548..bdc6687edc 100644 --- a/src/reflect/scala/reflect/macros/Reifiers.scala +++ b/src/reflect/scala/reflect/macros/Reifiers.scala @@ -1,6 +1,8 @@ package scala.reflect package macros +import scala.reflect.api.PositionApi + trait Reifiers { self: Context => @@ -86,6 +88,6 @@ trait Reifiers { // made these guys non path-dependent, otherwise exception handling quickly becomes a mess -case class ReificationError(val pos: reflect.api.PositionApi, val msg: String) extends Throwable(msg) +case class ReificationError(val pos: PositionApi, val msg: String) extends Throwable(msg) -case class UnexpectedReificationError(val pos: reflect.api.PositionApi, val msg: String, val cause: Throwable = null) extends Throwable(msg, cause) +case class UnexpectedReificationError(val pos: PositionApi, val msg: String, val cause: Throwable = null) extends Throwable(msg, cause) diff --git a/src/reflect/scala/reflect/macros/TypeTags.scala b/src/reflect/scala/reflect/macros/TypeTags.scala index 8f590d1de4..2f15e37f6a 100644 --- a/src/reflect/scala/reflect/macros/TypeTags.scala +++ b/src/reflect/scala/reflect/macros/TypeTags.scala @@ -4,6 +4,6 @@ package macros trait TypeTags { self: Context => - def AbsTypeTag[T](tpe: Type): AbsTypeTag[T] + def WeakTypeTag[T](tpe: Type): WeakTypeTag[T] def TypeTag[T](tpe: Type): TypeTag[T] } diff --git a/src/reflect/scala/reflect/runtime/JavaMirrors.scala b/src/reflect/scala/reflect/runtime/JavaMirrors.scala index 9f2c3fc79c..be2661149a 100644 --- a/src/reflect/scala/reflect/runtime/JavaMirrors.scala +++ b/src/reflect/scala/reflect/runtime/JavaMirrors.scala @@ -14,12 +14,12 @@ import internal.MissingRequirementError import internal.pickling.ByteCodecs import internal.ClassfileConstants._ import internal.pickling.UnPickler -import collection.mutable.{ HashMap, ListBuffer } +import scala.collection.mutable.{ HashMap, ListBuffer } import internal.Flags._ //import scala.tools.nsc.util.ScalaClassLoader //import scala.tools.nsc.util.ScalaClassLoader._ import ReflectionUtils.{staticSingletonInstance, innerSingletonInstance} -import language.existentials +import scala.language.existentials import scala.runtime.{ScalaRunTime, BoxesRunTime} import scala.reflect.internal.util.Collections._ @@ -120,19 +120,20 @@ trait JavaMirrors extends internal.SymbolTable with api.JavaUniverse { self: Sym // ----------- Implementations of mirror operations and classes ------------------- - private def ErrorInnerClass(wannabe: Symbol) = throw new ScalaReflectionException(s"$wannabe is an inner class, use reflectClass on an InstanceMirror to obtain its ClassMirror") - private def ErrorInnerModule(wannabe: Symbol) = throw new ScalaReflectionException(s"$wannabe is an inner module, use reflectModule on an InstanceMirror to obtain its ModuleMirror") - private def ErrorStaticClass(wannabe: Symbol) = throw new ScalaReflectionException(s"$wannabe is a static class, use reflectClass on a RuntimeMirror to obtain its ClassMirror") - private def ErrorStaticModule(wannabe: Symbol) = throw new ScalaReflectionException(s"$wannabe is a static module, use reflectModule on a RuntimeMirror to obtain its ModuleMirror") - private def ErrorNotMember(wannabe: Symbol, owner: Symbol) = throw new ScalaReflectionException(s"expected a member of $owner, you provided ${wannabe.kindString} ${wannabe.fullName}") - private def ErrorNotField(wannabe: Symbol) = throw new ScalaReflectionException(s"expected a field or an accessor method symbol, you provided $wannabe") - private def ErrorNonExistentField(wannabe: Symbol) = throw new ScalaReflectionException(s""" - |Scala field ${wannabe.name} isn't represented as a Java field, neither it has a Java accessor method + private def ErrorInnerClass(sym: Symbol) = throw new ScalaReflectionException(s"$sym is an inner class, use reflectClass on an InstanceMirror to obtain its ClassMirror") + private def ErrorInnerModule(sym: Symbol) = throw new ScalaReflectionException(s"$sym is an inner module, use reflectModule on an InstanceMirror to obtain its ModuleMirror") + private def ErrorStaticClass(sym: Symbol) = throw new ScalaReflectionException(s"$sym is a static class, use reflectClass on a RuntimeMirror to obtain its ClassMirror") + private def ErrorStaticModule(sym: Symbol) = throw new ScalaReflectionException(s"$sym is a static module, use reflectModule on a RuntimeMirror to obtain its ModuleMirror") + private def ErrorNotMember(sym: Symbol, owner: Symbol) = throw new ScalaReflectionException(s"expected a member of $owner, you provided ${sym.kindString} ${sym.fullName}") + private def ErrorNotField(sym: Symbol) = throw new ScalaReflectionException(s"expected a field or an accessor method symbol, you provided $sym") + private def ErrorNonExistentField(sym: Symbol) = throw new ScalaReflectionException(s""" + |Scala field ${sym.name} isn't represented as a Java field, neither it has a Java accessor method |note that private parameters of class constructors don't get mapped onto fields and/or accessors, |unless they are used outside of their declaring constructors. """.trim.stripMargin) - private def ErrorSetImmutableField(wannabe: Symbol) = throw new ScalaReflectionException(s"cannot set an immutable field ${wannabe.name}") - private def ErrorNotConstructor(wannabe: Symbol, owner: Symbol) = throw new ScalaReflectionException(s"expected a constructor of $owner, you provided $wannabe") + private def ErrorSetImmutableField(sym: Symbol) = throw new ScalaReflectionException(s"cannot set an immutable field ${sym.name}") + private def ErrorNotConstructor(sym: Symbol, owner: Symbol) = throw new ScalaReflectionException(s"expected a constructor of $owner, you provided $sym") + private def ErrorFree(member: Symbol, freeType: Symbol) = throw new ScalaReflectionException(s"cannot reflect ${member.kindString} ${member.name}, because it's a member of a weak type ${freeType.name}") def reflect[T: ClassTag](obj: T): InstanceMirror = new JavaInstanceMirror(obj) @@ -154,13 +155,30 @@ trait JavaMirrors extends internal.SymbolTable with api.JavaUniverse { self: Sym def moduleSymbol(rtcls: RuntimeClass): ModuleSymbol = classToScala(rtcls).companionModule.asModule - private def checkMemberOf(wannabe: Symbol, owner: ClassSymbol) { - if (wannabe.owner == AnyClass || wannabe.owner == AnyRefClass || wannabe.owner == ObjectClass) { + private def ensuringNotFree(sym: Symbol)(body: => Any) { + val freeType = sym.ownerChain find (_.isFreeType) + freeType match { + case Some(freeType) => ErrorFree(sym, freeType) + case _ => body + } + } + + private def checkMemberOf(sym: Symbol, owner: ClassSymbol) { + if (sym.owner == AnyClass || sym.owner == AnyRefClass || sym.owner == ObjectClass) { // do nothing - } else if (wannabe.owner == AnyValClass) { - if (!owner.isPrimitiveValueClass && !owner.isDerivedValueClass) ErrorNotMember(wannabe, owner) + } else if (sym.owner == AnyValClass) { + if (!owner.isPrimitiveValueClass && !owner.isDerivedValueClass) ErrorNotMember(sym, owner) } else { - if (!(owner.info.baseClasses contains wannabe.owner)) ErrorNotMember(wannabe, owner) + ensuringNotFree(sym) { + if (!(owner.info.baseClasses contains sym.owner)) ErrorNotMember(sym, owner) + } + } + } + + private def checkConstructorOf(sym: Symbol, owner: ClassSymbol) { + if (!sym.isClassConstructor) ErrorNotConstructor(sym, owner) + ensuringNotFree(sym) { + if (!owner.info.decls.toList.contains(sym)) ErrorNotConstructor(sym, owner) } } @@ -386,8 +404,7 @@ trait JavaMirrors extends internal.SymbolTable with api.JavaUniverse { self: Sym def erasure = symbol def isStatic = false def reflectConstructor(constructor: MethodSymbol) = { - if (!constructor.isClassConstructor) ErrorNotConstructor(constructor, symbol) - if (!symbol.info.decls.toList.contains(constructor)) ErrorNotConstructor(constructor, symbol) + checkConstructorOf(constructor, symbol) new JavaConstructorMirror(outer, constructor) } def companion: Option[ModuleMirror] = symbol.companionModule match { diff --git a/src/reflect/scala/reflect/runtime/ReflectionUtils.scala b/src/reflect/scala/reflect/runtime/ReflectionUtils.scala index 0125fa2c53..eaf7d8326f 100644 --- a/src/reflect/scala/reflect/runtime/ReflectionUtils.scala +++ b/src/reflect/scala/reflect/runtime/ReflectionUtils.scala @@ -38,7 +38,7 @@ object ReflectionUtils { ) def show(cl: ClassLoader): String = { - import language.reflectiveCalls + import scala.language.reflectiveCalls def isAbstractFileClassLoader(clazz: Class[_]): Boolean = { if (clazz == null) return false diff --git a/src/reflect/scala/reflect/runtime/SymbolLoaders.scala b/src/reflect/scala/reflect/runtime/SymbolLoaders.scala index 6bfafe6af1..5f3ad37c9e 100644 --- a/src/reflect/scala/reflect/runtime/SymbolLoaders.scala +++ b/src/reflect/scala/reflect/runtime/SymbolLoaders.scala @@ -3,7 +3,7 @@ package runtime import internal.Flags import java.lang.{Class => jClass, Package => jPackage} -import collection.mutable +import scala.collection.mutable trait SymbolLoaders { self: SymbolTable => diff --git a/src/reflect/scala/reflect/runtime/SynchronizedSymbols.scala b/src/reflect/scala/reflect/runtime/SynchronizedSymbols.scala index 40346cad79..7705610efb 100644 --- a/src/reflect/scala/reflect/runtime/SynchronizedSymbols.scala +++ b/src/reflect/scala/reflect/runtime/SynchronizedSymbols.scala @@ -14,11 +14,11 @@ trait SynchronizedSymbols extends internal.Symbols { self: SymbolTable => override def connectModuleToClass(m: ModuleSymbol, moduleClass: ClassSymbol): ModuleSymbol = synchronized { super.connectModuleToClass(m, moduleClass) } - override def newFreeTermSymbol(name: TermName, info: Type, value: => Any, flags: Long = 0L, origin: String = null): FreeTermSymbol = - new FreeTermSymbol(name, value, origin) with SynchronizedTermSymbol initFlags flags setInfo info + override def newFreeTermSymbol(name: TermName, value: => Any, flags: Long = 0L, origin: String = null): FreeTermSymbol = + new FreeTermSymbol(name, value, origin) with SynchronizedTermSymbol initFlags flags - override def newFreeTypeSymbol(name: TypeName, info: Type, value: => Any, flags: Long = 0L, origin: String = null): FreeTypeSymbol = - new FreeTypeSymbol(name, value, origin) with SynchronizedTypeSymbol initFlags flags setInfo info + override def newFreeTypeSymbol(name: TypeName, flags: Long = 0L, origin: String = null): FreeTypeSymbol = + new FreeTypeSymbol(name, origin) with SynchronizedTypeSymbol initFlags flags override protected def makeNoSymbol: NoSymbol = new NoSymbol with SynchronizedSymbol diff --git a/src/reflect/scala/reflect/runtime/TwoWayCache.scala b/src/reflect/scala/reflect/runtime/TwoWayCache.scala index e2bf5773d2..05debcba65 100644 --- a/src/reflect/scala/reflect/runtime/TwoWayCache.scala +++ b/src/reflect/scala/reflect/runtime/TwoWayCache.scala @@ -1,7 +1,7 @@ package scala.reflect package runtime -import collection.mutable.WeakHashMap +import scala.collection.mutable.WeakHashMap import java.lang.ref.WeakReference /** A cache that maintains a bijection between Java reflection type `J` diff --git a/src/reflect/scala/reflect/runtime/package.scala b/src/reflect/scala/reflect/runtime/package.scala index ccdea3e82d..d325cf6a16 100644 --- a/src/reflect/scala/reflect/runtime/package.scala +++ b/src/reflect/scala/reflect/runtime/package.scala @@ -17,7 +17,7 @@ package runtime { if (runtimeClass.isEmpty) c.abort(c.enclosingPosition, "call site does not have an enclosing class") val runtimeUniverse = Select(Select(Select(Ident(newTermName("scala")), newTermName("reflect")), newTermName("runtime")), newTermName("universe")) val currentMirror = Apply(Select(runtimeUniverse, newTermName("runtimeMirror")), List(Select(runtimeClass, newTermName("getClassLoader")))) - c.Expr[Nothing](currentMirror)(c.AbsTypeTag.Nothing) + c.Expr[Nothing](currentMirror)(c.WeakTypeTag.Nothing) } } } diff --git a/src/reflect/scala/tools/nsc/io/File.scala b/src/reflect/scala/tools/nsc/io/File.scala index 1f3cac7ee1..fce0e339e0 100644 --- a/src/reflect/scala/tools/nsc/io/File.scala +++ b/src/reflect/scala/tools/nsc/io/File.scala @@ -16,7 +16,7 @@ import java.io.{ import java.io.{ File => JFile } import java.nio.channels.{ Channel, FileChannel } import scala.io.Codec -import language.{reflectiveCalls, implicitConversions} +import scala.language.{reflectiveCalls, implicitConversions} object File { def pathSeparator = java.io.File.pathSeparator diff --git a/src/reflect/scala/tools/nsc/io/Path.scala b/src/reflect/scala/tools/nsc/io/Path.scala index e965c70111..0a27e49686 100644 --- a/src/reflect/scala/tools/nsc/io/Path.scala +++ b/src/reflect/scala/tools/nsc/io/Path.scala @@ -12,7 +12,7 @@ import java.io.{ import java.io.{ File => JFile } import java.net.{ URI, URL } import scala.util.Random.alphanumeric -import language.implicitConversions +import scala.language.implicitConversions /** An abstraction for filesystem paths. The differences between * Path, File, and Directory are primarily to communicate intent. diff --git a/src/reflect/scala/tools/nsc/io/Streamable.scala b/src/reflect/scala/tools/nsc/io/Streamable.scala index ff770bd396..625429bdb3 100644 --- a/src/reflect/scala/tools/nsc/io/Streamable.scala +++ b/src/reflect/scala/tools/nsc/io/Streamable.scala @@ -10,7 +10,7 @@ import java.net.{ URI, URL } import java.io.{ BufferedInputStream, InputStream, PrintStream } import java.io.{ BufferedReader, InputStreamReader, Closeable => JCloseable } import scala.io.{ Codec, BufferedSource, Source } -import collection.mutable.ArrayBuffer +import scala.collection.mutable.ArrayBuffer import Path.fail /** Traits for objects which can be represented as Streams. diff --git a/src/reflect/scala/tools/nsc/io/ZipArchive.scala b/src/reflect/scala/tools/nsc/io/ZipArchive.scala index d1a91294a5..d7ec209525 100644 --- a/src/reflect/scala/tools/nsc/io/ZipArchive.scala +++ b/src/reflect/scala/tools/nsc/io/ZipArchive.scala @@ -11,7 +11,7 @@ import java.io.{ IOException, InputStream, ByteArrayInputStream } import java.io.{ File => JFile } import java.util.zip.{ ZipEntry, ZipFile, ZipInputStream } import scala.collection.{ immutable, mutable } -import annotation.tailrec +import scala.annotation.tailrec /** An abstraction for zip files and streams. Everything is written the way * it is for performance: we come through here a lot on every run. Be careful @@ -107,14 +107,14 @@ abstract class ZipArchive(override val file: JFile) extends AbstractFile with Eq // }) dirs get path match { case Some(v) => v - case None => + case None => val parent = ensureDir(dirs, dirName(path), null) val dir = new DirEntry(path) parent.entries(baseName(path)) = dir dirs(path) = dir dir } - + protected def getDir(dirs: mutable.Map[String, DirEntry], entry: ZipEntry): DirEntry = { if (entry.isDirectory) ensureDir(dirs, entry.getName, entry) else ensureDir(dirs, dirName(entry.getName), null) diff --git a/src/scalap/scala/tools/scalap/CodeWriter.scala b/src/scalap/scala/tools/scalap/CodeWriter.scala index f5db183abb..35de796727 100644 --- a/src/scalap/scala/tools/scalap/CodeWriter.scala +++ b/src/scalap/scala/tools/scalap/CodeWriter.scala @@ -13,7 +13,7 @@ import java.io._ class CodeWriter(writer: Writer) { - private val nl = compat.Platform.EOL + private val nl = scala.compat.Platform.EOL private var step = " " private var level = 0 private var align = false diff --git a/test/ant/test-basic/build.xml b/test/ant/test-basic/build.xml new file mode 100644 index 0000000000..acc210806f --- /dev/null +++ b/test/ant/test-basic/build.xml @@ -0,0 +1,33 @@ +<?xml version="1.0" encoding="UTF-8"?> + +<project name="test-simple" default="compile"> + <description>Super simple test for Scala</description> + + <target name="init"> + <!-- Define project CLASSPATH. --> + <property name="base.dir" value="../../.."/> + <property name="pack.dir" value="${base.dir}/build/pack/"/> + <property name="build.dir" value="classes"/> + <property name="src.dir" value="src"/> + <property name="jvmargs" value=""/> + <path id="scala.classpath"> + <fileset dir="${pack.dir}/lib/"> <include name="*.jar" /> </fileset> + </path> + + <!-- Define scala compiler, scaladoc, etc command --> + <taskdef resource="scala/tools/ant/antlib.xml"> + <classpath refid="scala.classpath" /> + </taskdef> + </target> + + <target name="compile" depends="init"> + <mkdir dir="${build.dir}"/> + + <scalac srcdir="${src.dir}" destdir="${build.dir}" + classpathref="scala.classpath" fork="true" target="jvm-1.5" + deprecation="no" addparams="-no-specialization" + jvmargs="${jvmargs} -XX:+UseConcMarkSweepGC"> + <include name="**/*.scala"/> + </scalac> + </target> +</project> diff --git a/test/ant/test-basic/src/test-1.scala b/test/ant/test-basic/src/test-1.scala new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/test/ant/test-basic/src/test-1.scala diff --git a/test/files/jvm/duration-java.check b/test/files/jvm/duration-java.check index 7ae257dcc0..49d06fbe93 100644 --- a/test/files/jvm/duration-java.check +++ b/test/files/jvm/duration-java.check @@ -201,7 +201,7 @@ 6.0E7 seconds => 1000000 minutes 1.0E8 seconds => 100000000 seconds 1.0E9 seconds => 1000000000 seconds - 1.0E12 seconds => 9223372036854775807 nanoseconds + 1.0E12 seconds => class java.lang.IllegalArgumentException 0.0 minutes => 0 days 1.0 minutes => 1 minute 7.0 minutes => 7 minutes @@ -251,8 +251,8 @@ 3.0E7 minutes => 500000 hours 6.0E7 minutes => 1000000 hours 1.0E8 minutes => 100000000 minutes - 1.0E9 minutes => 9223372036854775807 nanoseconds - 1.0E12 minutes => 9223372036854775807 nanoseconds + 1.0E9 minutes => class java.lang.IllegalArgumentException + 1.0E12 minutes => class java.lang.IllegalArgumentException 0.0 hours => 0 days 1.0 hours => 1 hour 7.0 hours => 7 hours @@ -295,15 +295,15 @@ 60000.0 hours => 2500 days 100000.0 hours => 100000 hours 1000000.0 hours => 1000000 hours - 7000000.0 hours => 9223372036854775807 nanoseconds - 1.0E7 hours => 9223372036854775807 nanoseconds - 1.2E7 hours => 9223372036854775807 nanoseconds - 2.4E7 hours => 9223372036854775807 nanoseconds - 3.0E7 hours => 9223372036854775807 nanoseconds - 6.0E7 hours => 9223372036854775807 nanoseconds - 1.0E8 hours => 9223372036854775807 nanoseconds - 1.0E9 hours => 9223372036854775807 nanoseconds - 1.0E12 hours => 9223372036854775807 nanoseconds + 7000000.0 hours => class java.lang.IllegalArgumentException + 1.0E7 hours => class java.lang.IllegalArgumentException + 1.2E7 hours => class java.lang.IllegalArgumentException + 2.4E7 hours => class java.lang.IllegalArgumentException + 3.0E7 hours => class java.lang.IllegalArgumentException + 6.0E7 hours => class java.lang.IllegalArgumentException + 1.0E8 hours => class java.lang.IllegalArgumentException + 1.0E9 hours => class java.lang.IllegalArgumentException + 1.0E12 hours => class java.lang.IllegalArgumentException 0.0 days => 0 days 1.0 days => 1 day 7.0 days => 7 days @@ -345,16 +345,18 @@ 30000.0 days => 30000 days 60000.0 days => 60000 days 100000.0 days => 100000 days - 1000000.0 days => 9223372036854775807 nanoseconds - 7000000.0 days => 9223372036854775807 nanoseconds - 1.0E7 days => 9223372036854775807 nanoseconds - 1.2E7 days => 9223372036854775807 nanoseconds - 2.4E7 days => 9223372036854775807 nanoseconds - 3.0E7 days => 9223372036854775807 nanoseconds - 6.0E7 days => 9223372036854775807 nanoseconds - 1.0E8 days => 9223372036854775807 nanoseconds - 1.0E9 days => 9223372036854775807 nanoseconds - 1.0E12 days => 9223372036854775807 nanoseconds + 1000000.0 days => class java.lang.IllegalArgumentException + 7000000.0 days => class java.lang.IllegalArgumentException + 1.0E7 days => class java.lang.IllegalArgumentException + 1.2E7 days => class java.lang.IllegalArgumentException + 2.4E7 days => class java.lang.IllegalArgumentException + 3.0E7 days => class java.lang.IllegalArgumentException + 6.0E7 days => class java.lang.IllegalArgumentException + 1.0E8 days => class java.lang.IllegalArgumentException + 1.0E9 days => class java.lang.IllegalArgumentException + 1.0E12 days => class java.lang.IllegalArgumentException +10000000000000001 nanoseconds => 10000000000000001 nanoseconds +10000000000000002 nanoseconds => 10000000000000002 nanoseconds Inf => Duration.Inf -Inf => Duration.MinusInf +Inf => Duration.Inf diff --git a/test/files/jvm/duration-java/Test.java b/test/files/jvm/duration-java/Test.java index 02feb522b8..1c53ccb266 100644 --- a/test/files/jvm/duration-java/Test.java +++ b/test/files/jvm/duration-java/Test.java @@ -26,10 +26,18 @@ public class Test { for (TimeUnit t : TimeUnit.values()) { for (Double n: makeNumbers()) { String s = "" + n + " " + t.toString().toLowerCase(); - Duration d = Duration.create(n, t); - p(String.format("%25s => %s", s, d)); + String result; + try { + Duration d = Duration.create(n, t); + result = d.toString(); + } catch(Exception e) { + result = e.getClass().toString(); + } + p(String.format("%25s => %s", s, result)); } } + for (String s: new String[] {"10000000000000001 nanoseconds", "10000000000000002 nanoseconds"}) + p(String.format("%25s => %s", s, Duration.create(s))); for (String s: Arrays.asList("Inf", "-Inf", "+Inf", "PlusInf", "MinusInf")) { Duration d = Duration.create(s); p(String.format("%25s => %s", s, d)); diff --git a/test/files/jvm/duration-tck.scala b/test/files/jvm/duration-tck.scala new file mode 100644 index 0000000000..0947e84004 --- /dev/null +++ b/test/files/jvm/duration-tck.scala @@ -0,0 +1,186 @@ +/** + * Copyright (C) 2012 Typesafe Inc. <http://www.typesafe.com> + */ + +import scala.concurrent.util._ +import duration._ +import scala.reflect._ +import java.util.concurrent.TimeUnit._ +import scala.tools.partest.TestUtil.intercept + +object Test extends App { + + implicit class Assert(val left: Any) extends AnyVal { + import Duration.Undefined + def mustBe(right: Any) = right match { + case r: Double if r.isNaN => assert(left.asInstanceOf[Double].isNaN, s"$left was not NaN") + case r: Double if r == 0 && r.compareTo(0) == -1 => assert(left == 0 && left.asInstanceOf[Double].compareTo(0) == -1, s"$left was not -0.0") + case Undefined => assert(left.asInstanceOf[AnyRef] eq Undefined, s"$left was not Undefined") + case _ => assert(left == right, s"$left was not equal to $right") + } + } + + val zero = 0 seconds + val one = 1 second + val two = one + one + val three = 3 * one + val inf = Duration.Inf + val minf = Duration.MinusInf + val undef = Duration.Undefined + val inputs = List(zero, one, inf, minf, undef) + val nan = Double.NaN + + // test field ops + one.isFinite mustBe true + 0 * one mustBe zero + 2 * one mustBe two + three - two mustBe one + three / 3 mustBe one + two / one mustBe 2 + one + zero mustBe one + one / 1000000 mustBe 1.micro + + + // test infinities + + inf.isFinite mustBe false + minf.isFinite mustBe false + + inf mustBe inf + minf mustBe minf + -inf mustBe minf + -minf mustBe inf + + minf + inf mustBe undef + inf - inf mustBe undef + inf + minf mustBe undef + minf - minf mustBe undef + + inf + inf mustBe inf + inf - minf mustBe inf + minf - inf mustBe minf + minf + minf mustBe minf + + inf.compareTo(inf) mustBe 0 + inf.compareTo(one) mustBe 1 + inf.compareTo(minf) mustBe 1 + minf.compareTo(minf) mustBe 0 + minf.compareTo(one) mustBe -1 + minf.compareTo(inf) mustBe -1 + + assert(inf != minf) + assert(minf != inf) + assert(one != inf) + assert(minf != one) + + inf mustBe (minf * -1d) + inf mustBe (minf / -1d) + + one / inf mustBe 0d + -one / inf mustBe -0d + one / minf mustBe -0d + -one / minf mustBe 0d + + inputs filterNot (_.isFinite) foreach (x => x / zero mustBe x.toUnit(DAYS)) + inputs filterNot (_.isFinite) foreach (_ * 0d mustBe undef) + inputs filterNot (_.isFinite) foreach (_ * -0d mustBe undef) + inputs filterNot (_.isFinite) foreach (x => x * Double.PositiveInfinity mustBe x) + inputs filterNot (_.isFinite) foreach (x => x * Double.NegativeInfinity mustBe -x) + + inf.toUnit(SECONDS) mustBe Double.PositiveInfinity + minf.toUnit(MINUTES) mustBe Double.NegativeInfinity + Duration.fromNanos(Double.PositiveInfinity) mustBe inf + Duration.fromNanos(Double.NegativeInfinity) mustBe minf + + + // test undefined & NaN + + undef.isFinite mustBe false + -undef mustBe undef + assert(undef != undef) + assert(undef eq undef) + + inputs foreach (_ + undef mustBe undef) + inputs foreach (_ - undef mustBe undef) + inputs foreach (_ / undef mustBe nan) + inputs foreach (_ / nan mustBe undef) + inputs foreach (_ * nan mustBe undef) + inputs foreach (undef + _ mustBe undef) + inputs foreach (undef - _ mustBe undef) + inputs foreach (undef / _ mustBe nan) + undef / 1 mustBe undef + undef / nan mustBe undef + undef * 1 mustBe undef + undef * nan mustBe undef + inputs foreach (x => x / zero mustBe x.toUnit(SECONDS) / 0d) + inputs foreach (x => x / 0d mustBe Duration.fromNanos(x.toUnit(NANOSECONDS) / 0d)) + inputs foreach (x => x / -0d mustBe Duration.fromNanos(x.toUnit(NANOSECONDS) / -0d)) + + inputs filterNot (_ eq undef) foreach (_ compareTo undef mustBe -1) + inputs filterNot (_ eq undef) foreach (undef compareTo _ mustBe 1) + undef compare undef mustBe 0 + + undef.toUnit(DAYS) mustBe nan + Duration.fromNanos(nan) mustBe undef + + + // test overflow protection + for (unit ← Seq(DAYS, HOURS, MINUTES, SECONDS, MILLISECONDS, MICROSECONDS, NANOSECONDS)) { + val x = unit.convert(Long.MaxValue, NANOSECONDS) + val dur = Duration(x, unit) + val mdur = Duration(-x, unit) + -mdur mustBe (dur) + intercept[IllegalArgumentException] { Duration(x + 10000000d, unit) } + intercept[IllegalArgumentException] { Duration(-x - 10000000d, unit) } + if (unit != NANOSECONDS) { + intercept[IllegalArgumentException] { Duration(x + 1, unit) } + intercept[IllegalArgumentException] { Duration(-x - 1, unit) } + } + intercept[IllegalArgumentException] { dur + 1.day } + intercept[IllegalArgumentException] { mdur - 1.day } + intercept[IllegalArgumentException] { dur * 1.1 } + intercept[IllegalArgumentException] { mdur * 1.1 } + intercept[IllegalArgumentException] { dur * 2.1 } + intercept[IllegalArgumentException] { mdur * 2.1 } + intercept[IllegalArgumentException] { dur / 0.9 } + intercept[IllegalArgumentException] { mdur / 0.9 } + intercept[IllegalArgumentException] { dur / 0.4 } + intercept[IllegalArgumentException] { mdur / 0.4 } + Duration(x + unit.toString.toLowerCase) + Duration("-" + x + unit.toString.toLowerCase) + intercept[IllegalArgumentException] { Duration("%.0f".format(x + 10000000d) + unit.toString.toLowerCase) } + intercept[IllegalArgumentException] { Duration("-%.0f".format(x + 10000000d) + unit.toString.toLowerCase) } + } + intercept[IllegalArgumentException] { Duration.fromNanos(1e20) } + intercept[IllegalArgumentException] { Duration.fromNanos(-1e20) } + + + // test precision + 1.second + 1.millisecond mustBe 1001.milliseconds + 100000.days + 1.nanosecond mustBe 8640000000000000001L.nanoseconds + 1.5.seconds.toSeconds mustBe 1 + (-1.5).seconds.toSeconds mustBe -1 + + + // test unit stability + 1000.millis.unit mustBe MILLISECONDS + (1000.millis + 0.days).unit mustBe MILLISECONDS + 1.second.unit mustBe SECONDS + (1.second + 1.millisecond).unit mustBe MILLISECONDS + + + // test Deadline + val dead = 2.seconds.fromNow + val dead2 = 2 seconds fromNow + assert(dead.timeLeft > 1.second) + assert(dead2.timeLeft > 1.second) + Thread.sleep(1.second.toMillis) + assert(dead.timeLeft < 1.second) + assert(dead2.timeLeft < 1.second) + + + // check statically retaining finite-ness + val finiteDuration: FiniteDuration = 1.second plus 3.seconds minus 1.millisecond min 1.second max 1.second + + +} diff --git a/test/files/jvm/scala-concurrent-tck.scala b/test/files/jvm/scala-concurrent-tck.scala index ffb5608fd2..0e76b711de 100644 --- a/test/files/jvm/scala-concurrent-tck.scala +++ b/test/files/jvm/scala-concurrent-tck.scala @@ -11,6 +11,8 @@ import scala.concurrent.{ import scala.concurrent.{ future, promise, blocking } import scala.util.{ Try, Success, Failure } import scala.concurrent.util.Duration +import scala.reflect.{ classTag, ClassTag } +import scala.tools.partest.TestUtil.intercept trait TestBase { @@ -19,7 +21,7 @@ trait TestBase { body(() => sv put true) sv.take(2000) } - + // def assert(cond: => Boolean) { // try { // Predef.assert(cond) @@ -663,6 +665,29 @@ trait FutureProjections extends TestBase { case nsee: NoSuchElementException => done() } } + + def testAwaitPositiveDuration(): Unit = once { done => + val p = Promise[Int]() + val f = p.future + future { + intercept[IllegalArgumentException] { Await.ready(f, Duration.Undefined) } + p.success(0) + Await.ready(f, Duration.Zero) + Await.ready(f, Duration(500, "ms")) + Await.ready(f, Duration.Inf) + done() + } onFailure { case x => throw x } + } + + def testAwaitNegativeDuration(): Unit = once { done => + val f = Promise().future + future { + intercept[TimeoutException] { Await.ready(f, Duration.Zero) } + intercept[TimeoutException] { Await.ready(f, Duration.MinusInf) } + intercept[TimeoutException] { Await.ready(f, Duration(-500, "ms")) } + done() + } onFailure { case x => throw x } + } testFailedFailureOnComplete() testFailedFailureOnSuccess() @@ -670,6 +695,8 @@ trait FutureProjections extends TestBase { testFailedSuccessOnFailure() testFailedFailureAwait() testFailedSuccessAwait() + testAwaitPositiveDuration() + testAwaitNegativeDuration() } diff --git a/test/files/neg/deadline-inf-illegal.check b/test/files/neg/deadline-inf-illegal.check new file mode 100644 index 0000000000..2b9b25e48e --- /dev/null +++ b/test/files/neg/deadline-inf-illegal.check @@ -0,0 +1,15 @@ +deadline-inf-illegal.scala:5: error: value fromNow is not a member of scala.concurrent.util.Duration + d.fromNow + ^ +deadline-inf-illegal.scala:6: error: type mismatch; + found : scala.concurrent.util.Duration + required: scala.concurrent.util.FiniteDuration + Deadline.now + d + ^ +deadline-inf-illegal.scala:7: error: overloaded method value - with alternatives: + (other: scala.concurrent.util.Deadline)scala.concurrent.util.FiniteDuration <and> + (other: scala.concurrent.util.FiniteDuration)scala.concurrent.util.Deadline + cannot be applied to (scala.concurrent.util.Duration) + Deadline.now - d + ^ +three errors found diff --git a/test/files/neg/deadline-inf-illegal.scala b/test/files/neg/deadline-inf-illegal.scala new file mode 100644 index 0000000000..161089bfee --- /dev/null +++ b/test/files/neg/deadline-inf-illegal.scala @@ -0,0 +1,8 @@ +import concurrent.util.{ Deadline, Duration } + +class T { + val d: Duration = Duration.Zero + d.fromNow + Deadline.now + d + Deadline.now - d +} diff --git a/test/files/neg/interop_abstypetags_arenot_classmanifests.scala b/test/files/neg/interop_abstypetags_arenot_classmanifests.scala index c8567be5d4..5d88c90ffd 100644 --- a/test/files/neg/interop_abstypetags_arenot_classmanifests.scala +++ b/test/files/neg/interop_abstypetags_arenot_classmanifests.scala @@ -1,11 +1,11 @@ import scala.reflect.runtime.universe._ object Test extends App { - def absTypeTagIsnotClassManifest[T: AbsTypeTag] = { + def weakTypeTagIsnotClassManifest[T: WeakTypeTag] = { println(classManifest[T]) } - absTypeTagIsnotClassManifest[Int] - absTypeTagIsnotClassManifest[String] - absTypeTagIsnotClassManifest[Array[Int]] + weakTypeTagIsnotClassManifest[Int] + weakTypeTagIsnotClassManifest[String] + weakTypeTagIsnotClassManifest[Array[Int]] }
\ No newline at end of file diff --git a/test/files/neg/interop_abstypetags_arenot_classtags.scala b/test/files/neg/interop_abstypetags_arenot_classtags.scala index e3911c1588..de1f8657b6 100644 --- a/test/files/neg/interop_abstypetags_arenot_classtags.scala +++ b/test/files/neg/interop_abstypetags_arenot_classtags.scala @@ -2,11 +2,11 @@ import scala.reflect.runtime.universe._ import scala.reflect.{ClassTag, classTag} object Test extends App { - def absTypeTagIsnotClassTag[T: AbsTypeTag] = { + def weakTypeTagIsnotClassTag[T: WeakTypeTag] = { println(classTag[T]) } - absTypeTagIsnotClassTag[Int] - absTypeTagIsnotClassTag[String] - absTypeTagIsnotClassTag[Array[Int]] + weakTypeTagIsnotClassTag[Int] + weakTypeTagIsnotClassTag[String] + weakTypeTagIsnotClassTag[Array[Int]] }
\ No newline at end of file diff --git a/test/files/neg/interop_abstypetags_arenot_manifests.scala b/test/files/neg/interop_abstypetags_arenot_manifests.scala index 77a95048fd..1ca3673ce4 100644 --- a/test/files/neg/interop_abstypetags_arenot_manifests.scala +++ b/test/files/neg/interop_abstypetags_arenot_manifests.scala @@ -1,11 +1,11 @@ import scala.reflect.runtime.universe._ object Test extends App { - def absTypeTagIsnotManifest[T: AbsTypeTag] = { + def weakTypeTagIsnotManifest[T: WeakTypeTag] = { println(manifest[T]) } - absTypeTagIsnotManifest[Int] - absTypeTagIsnotManifest[String] - absTypeTagIsnotManifest[Array[Int]] + weakTypeTagIsnotManifest[Int] + weakTypeTagIsnotManifest[String] + weakTypeTagIsnotManifest[Array[Int]] }
\ No newline at end of file diff --git a/test/files/neg/macro-invalidsig-context-bounds.check b/test/files/neg/macro-invalidsig-context-bounds.check index 5d42ebc515..eb5d833bc0 100644 --- a/test/files/neg/macro-invalidsig-context-bounds.check +++ b/test/files/neg/macro-invalidsig-context-bounds.check @@ -1,7 +1,7 @@ Macros_Test_1.scala:2: error: macro implementation has wrong shape:
required: (c: scala.reflect.macros.Context): c.Expr[Any]
found : (c: scala.reflect.macros.Context)(implicit evidence$2: Numeric[U]): c.universe.Literal
-macro implementations cannot have implicit parameters other than AbsTypeTag evidences
+macro implementations cannot have implicit parameters other than WeakTypeTag evidences
def foo[U] = macro Impls.foo[U]
^
one error found
diff --git a/test/files/neg/macro-invalidsig-context-bounds/Impls_1.scala b/test/files/neg/macro-invalidsig-context-bounds/Impls_1.scala index 5aa9a7eaf9..c066c485b1 100644 --- a/test/files/neg/macro-invalidsig-context-bounds/Impls_1.scala +++ b/test/files/neg/macro-invalidsig-context-bounds/Impls_1.scala @@ -2,7 +2,7 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[U: c.AbsTypeTag: Numeric](c: Ctx) = { + def foo[U: c.WeakTypeTag: Numeric](c: Ctx) = { import c.universe._ Literal(Constant(42)) } diff --git a/test/files/neg/macro-invalidsig-implicit-params.check b/test/files/neg/macro-invalidsig-implicit-params.check index 62156770e4..ca35e62cd7 100644 --- a/test/files/neg/macro-invalidsig-implicit-params.check +++ b/test/files/neg/macro-invalidsig-implicit-params.check @@ -1,7 +1,7 @@ Impls_Macros_1.scala:18: error: macro implementation has wrong shape:
required: (c: scala.reflect.macros.Context)(x: c.Expr[Int]): c.Expr[Unit]
found : (c: scala.reflect.macros.Context)(implicit x: c.Expr[Int]): c.Expr[Unit]
-macro implementations cannot have implicit parameters other than AbsTypeTag evidences
+macro implementations cannot have implicit parameters other than WeakTypeTag evidences
def foo_targs[U](x: Int) = macro Impls.foo_targs[T, U]
^
one error found
diff --git a/test/files/neg/macro-invalidsig-implicit-params/Impls_Macros_1.scala b/test/files/neg/macro-invalidsig-implicit-params/Impls_Macros_1.scala index f724538993..845a168ff2 100644 --- a/test/files/neg/macro-invalidsig-implicit-params/Impls_Macros_1.scala +++ b/test/files/neg/macro-invalidsig-implicit-params/Impls_Macros_1.scala @@ -2,13 +2,13 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo_targs[T, U: c.AbsTypeTag](c: Ctx)(implicit x: c.Expr[Int]) = { + def foo_targs[T, U: c.WeakTypeTag](c: Ctx)(implicit x: c.Expr[Int]) = { import c.{prefix => prefix} import c.universe._ val body = Block( Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("invoking foo_targs...")))), Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("type of prefix is: " + prefix.staticType)))), - Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("U is: " + implicitly[c.AbsTypeTag[U]].tpe)))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("U is: " + implicitly[c.WeakTypeTag[U]].tpe)))), Literal(Constant(()))) c.Expr[Unit](body) } diff --git a/test/files/neg/macro-invalidsig-tparams-notparams-a.check b/test/files/neg/macro-invalidsig-tparams-notparams-a.check index 5aee62b9e5..5404c185f3 100644 --- a/test/files/neg/macro-invalidsig-tparams-notparams-a.check +++ b/test/files/neg/macro-invalidsig-tparams-notparams-a.check @@ -1,4 +1,4 @@ -Macros_Test_2.scala:2: error: wrong number of type parameters for method foo: [U](c: scala.reflect.macros.Context)(implicit evidence$1: c.AbsTypeTag[U])Nothing
+Macros_Test_2.scala:2: error: wrong number of type parameters for method foo: [U](c: scala.reflect.macros.Context)(implicit evidence$1: c.WeakTypeTag[U])Nothing
def foo = macro Impls.foo
^
one error found
diff --git a/test/files/neg/macro-invalidsig-tparams-notparams-a/Impls_1.scala b/test/files/neg/macro-invalidsig-tparams-notparams-a/Impls_1.scala index afbe0f0915..f8b3c92869 100644 --- a/test/files/neg/macro-invalidsig-tparams-notparams-a/Impls_1.scala +++ b/test/files/neg/macro-invalidsig-tparams-notparams-a/Impls_1.scala @@ -2,5 +2,5 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[U: c.AbsTypeTag](c: Ctx) = ??? + def foo[U: c.WeakTypeTag](c: Ctx) = ??? }
\ No newline at end of file diff --git a/test/files/neg/macro-invalidsig-tparams-notparams-b.check b/test/files/neg/macro-invalidsig-tparams-notparams-b.check index e8de8a4c6b..485d4de96e 100644 --- a/test/files/neg/macro-invalidsig-tparams-notparams-b.check +++ b/test/files/neg/macro-invalidsig-tparams-notparams-b.check @@ -1,4 +1,4 @@ -Macros_Test_2.scala:3: error: wrong number of type parameters for method foo: [T, U, V](c: scala.reflect.macros.Context)(implicit evidence$1: c.AbsTypeTag[T], implicit evidence$2: c.AbsTypeTag[U], implicit V: c.AbsTypeTag[V])c.Expr[Unit]
+Macros_Test_2.scala:3: error: wrong number of type parameters for method foo: [T, U, V](c: scala.reflect.macros.Context)(implicit evidence$1: c.WeakTypeTag[T], implicit evidence$2: c.WeakTypeTag[U], implicit V: c.WeakTypeTag[V])c.Expr[Unit]
def foo[V] = macro Impls.foo
^
one error found
diff --git a/test/files/neg/macro-invalidsig-tparams-notparams-b/Impls_1.scala b/test/files/neg/macro-invalidsig-tparams-notparams-b/Impls_1.scala index b48f9d5f98..baf3aab9e3 100644 --- a/test/files/neg/macro-invalidsig-tparams-notparams-b/Impls_1.scala +++ b/test/files/neg/macro-invalidsig-tparams-notparams-b/Impls_1.scala @@ -2,9 +2,9 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T: c.AbsTypeTag, U: c.AbsTypeTag, V](c: Ctx)(implicit V: c.AbsTypeTag[V]): c.Expr[Unit] = { - println(implicitly[c.AbsTypeTag[T]]) - println(implicitly[c.AbsTypeTag[U]]) + def foo[T: c.WeakTypeTag, U: c.WeakTypeTag, V](c: Ctx)(implicit V: c.WeakTypeTag[V]): c.Expr[Unit] = { + println(implicitly[c.WeakTypeTag[T]]) + println(implicitly[c.WeakTypeTag[U]]) println(V) c.literalUnit } diff --git a/test/files/neg/macro-invalidsig-tparams-notparams-c.check b/test/files/neg/macro-invalidsig-tparams-notparams-c.check index b1078fb233..1530c35097 100644 --- a/test/files/neg/macro-invalidsig-tparams-notparams-c.check +++ b/test/files/neg/macro-invalidsig-tparams-notparams-c.check @@ -1,4 +1,4 @@ -Macros_Test_2.scala:3: error: wrong number of type parameters for method foo: [T, U, V](c: scala.reflect.macros.Context)(implicit evidence$1: c.AbsTypeTag[T], implicit evidence$2: c.AbsTypeTag[U], implicit V: c.AbsTypeTag[V])c.Expr[Unit]
+Macros_Test_2.scala:3: error: wrong number of type parameters for method foo: [T, U, V](c: scala.reflect.macros.Context)(implicit evidence$1: c.WeakTypeTag[T], implicit evidence$2: c.WeakTypeTag[U], implicit V: c.WeakTypeTag[V])c.Expr[Unit]
def foo[V] = macro Impls.foo[V]
^
one error found
diff --git a/test/files/neg/macro-invalidsig-tparams-notparams-c/Impls_1.scala b/test/files/neg/macro-invalidsig-tparams-notparams-c/Impls_1.scala index 3506bdc789..44b4ed6ab3 100644 --- a/test/files/neg/macro-invalidsig-tparams-notparams-c/Impls_1.scala +++ b/test/files/neg/macro-invalidsig-tparams-notparams-c/Impls_1.scala @@ -2,10 +2,10 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T: c.AbsTypeTag, U: c.AbsTypeTag, V](c: Ctx)(implicit V: c.AbsTypeTag[V]): c.Expr[Unit] = { + def foo[T: c.WeakTypeTag, U: c.WeakTypeTag, V](c: Ctx)(implicit V: c.WeakTypeTag[V]): c.Expr[Unit] = { import c.universe._ - println(implicitly[c.AbsTypeTag[T]]) - println(implicitly[c.AbsTypeTag[U]]) + println(implicitly[c.WeakTypeTag[T]]) + println(implicitly[c.WeakTypeTag[U]]) println(V) c.literalUnit } diff --git a/test/files/neg/macro-reify-typetag-useabstypetag/Test.scala b/test/files/neg/macro-reify-typetag-useabstypetag/Test.scala index b66ad6c523..1e7fcb3f45 100644 --- a/test/files/neg/macro-reify-typetag-useabstypetag/Test.scala +++ b/test/files/neg/macro-reify-typetag-useabstypetag/Test.scala @@ -1,7 +1,7 @@ import scala.reflect.runtime.universe._ object Test extends App { - def fooTypeTag[T: AbsTypeTag] = { + def fooTypeTag[T: WeakTypeTag] = { println(implicitly[TypeTag[T]]) println(implicitly[TypeTag[List[T]]]) } diff --git a/test/files/neg/macro-without-xmacros-a.check b/test/files/neg/macro-without-xmacros-a.check index fd2667dbb8..ae6c6c695a 100644 --- a/test/files/neg/macro-without-xmacros-a.check +++ b/test/files/neg/macro-without-xmacros-a.check @@ -1,17 +1,17 @@ -Macros_2.scala:5: error: macro definition needs to be enabled
-by making the implicit value language.experimental.macros visible.
-This can be achieved by adding the import clause 'import language.experimental.macros'
-or by setting the compiler option -language:experimental.macros.
-See the Scala docs for value scala.language.experimental.macros for a discussion
-why the feature needs to be explicitly enabled.
- def foo(x: Int): Int = macro foo_impl
- ^
-Macros_2.scala:7: error: macro definition needs to be enabled
-by making the implicit value language.experimental.macros visible.
- def bar(x: Int): Int = macro bar_impl
- ^
-Macros_2.scala:11: error: macro definition needs to be enabled
-by making the implicit value language.experimental.macros visible.
- def quux(x: Int): Int = macro quux_impl
- ^
-three errors found
+Macros_2.scala:5: error: macro definition needs to be enabled +by making the implicit value language.experimental.macros visible. +This can be achieved by adding the import clause 'import scala.language.experimental.macros' +or by setting the compiler option -language:experimental.macros. +See the Scala docs for value scala.language.experimental.macros for a discussion +why the feature needs to be explicitly enabled. + def foo(x: Int): Int = macro foo_impl + ^ +Macros_2.scala:7: error: macro definition needs to be enabled +by making the implicit value language.experimental.macros visible. + def bar(x: Int): Int = macro bar_impl + ^ +Macros_2.scala:11: error: macro definition needs to be enabled +by making the implicit value language.experimental.macros visible. + def quux(x: Int): Int = macro quux_impl + ^ +three errors found diff --git a/test/files/neg/macro-without-xmacros-b.check b/test/files/neg/macro-without-xmacros-b.check index 2d675b8319..c3cadcf36a 100644 --- a/test/files/neg/macro-without-xmacros-b.check +++ b/test/files/neg/macro-without-xmacros-b.check @@ -1,17 +1,17 @@ -Macros_2.scala:3: error: macro definition needs to be enabled
-by making the implicit value language.experimental.macros visible.
-This can be achieved by adding the import clause 'import language.experimental.macros'
-or by setting the compiler option -language:experimental.macros.
-See the Scala docs for value scala.language.experimental.macros for a discussion
-why the feature needs to be explicitly enabled.
- def foo(x: Int): Int = macro Impls.foo_impl
- ^
-Macros_2.scala:5: error: macro definition needs to be enabled
-by making the implicit value language.experimental.macros visible.
- def bar(x: Int): Int = macro Impls.bar_impl
- ^
-Macros_2.scala:9: error: macro definition needs to be enabled
-by making the implicit value language.experimental.macros visible.
- def quux(x: Int): Int = macro Impls.quux_impl
- ^
-three errors found
+Macros_2.scala:3: error: macro definition needs to be enabled +by making the implicit value language.experimental.macros visible. +This can be achieved by adding the import clause 'import scala.language.experimental.macros' +or by setting the compiler option -language:experimental.macros. +See the Scala docs for value scala.language.experimental.macros for a discussion +why the feature needs to be explicitly enabled. + def foo(x: Int): Int = macro Impls.foo_impl + ^ +Macros_2.scala:5: error: macro definition needs to be enabled +by making the implicit value language.experimental.macros visible. + def bar(x: Int): Int = macro Impls.bar_impl + ^ +Macros_2.scala:9: error: macro definition needs to be enabled +by making the implicit value language.experimental.macros visible. + def quux(x: Int): Int = macro Impls.quux_impl + ^ +three errors found diff --git a/test/files/neg/names-defaults-neg.check b/test/files/neg/names-defaults-neg.check index 2809350855..f3c45a6aa0 100644 --- a/test/files/neg/names-defaults-neg.check +++ b/test/files/neg/names-defaults-neg.check @@ -76,7 +76,7 @@ and method f in object t8 of type (a: Int, b: Object)String match argument types (a: Int,b: String) and expected result type Any println(t8.f(a = 0, b = "1")) // ambigous reference ^ -names-defaults-neg.scala:69: error: wrong number of arguments for <none>: (x: Int, y: String)A1 +names-defaults-neg.scala:69: error: wrong number of arguments for pattern A1(x: Int,y: String) A1() match { case A1(_) => () } ^ names-defaults-neg.scala:76: error: no type parameters for method test4: (x: T[T[List[T[X forSome { type X }]]]])T[T[List[T[X forSome { type X }]]]] exist so that it can be applied to arguments (List[Int]) diff --git a/test/files/neg/override.check b/test/files/neg/override.check index fc152cb3b1..8be98bf4d0 100644 --- a/test/files/neg/override.check +++ b/test/files/neg/override.check @@ -1,5 +1,5 @@ override.scala:9: error: overriding type T in trait A with bounds >: Int <: Int; type T in trait B with bounds >: String <: String has incompatible type - lazy val x : A with B = x + lazy val x : A with B = {println(""); x} ^ one error found diff --git a/test/files/neg/override.scala b/test/files/neg/override.scala index 3e589b52e3..7975516061 100755 --- a/test/files/neg/override.scala +++ b/test/files/neg/override.scala @@ -6,7 +6,7 @@ trait X { trait Y extends X { trait B { type T >: String <: String } - lazy val x : A with B = x + lazy val x : A with B = {println(""); x} n = "foo" } diff --git a/test/files/neg/t5031.check b/test/files/neg/t5031.check index 8983d8daf9..2f1090c321 100644 --- a/test/files/neg/t5031.check +++ b/test/files/neg/t5031.check @@ -1,5 +1,5 @@ -Id.scala:3: error: Companions 'class Test' and 'object Test' must be defined in same file: +package.scala:2: error: Companions 'class Test' and 'object Test' must be defined in same file: Found in t5031/package.scala and t5031/Id.scala -object Test - ^ + class Test + ^ one error found diff --git a/test/files/neg/t5031b.check b/test/files/neg/t5031b.check new file mode 100644 index 0000000000..3bc2284a4d --- /dev/null +++ b/test/files/neg/t5031b.check @@ -0,0 +1,5 @@ +b.scala:3: error: Companions 'class Bippy' and 'object Bippy' must be defined in same file: + Found in t5031b/a.scala and t5031b/b.scala +object Bippy + ^ +one error found diff --git a/test/files/neg/t5031b/a.scala b/test/files/neg/t5031b/a.scala new file mode 100644 index 0000000000..0ab9aa9769 --- /dev/null +++ b/test/files/neg/t5031b/a.scala @@ -0,0 +1,3 @@ +package foo + +class Bippy diff --git a/test/files/neg/t5031b/b.scala b/test/files/neg/t5031b/b.scala new file mode 100644 index 0000000000..bdef237af5 --- /dev/null +++ b/test/files/neg/t5031b/b.scala @@ -0,0 +1,3 @@ +package foo + +object Bippy diff --git a/test/files/neg/t6040.check b/test/files/neg/t6040.check index f44a81c471..f6757f97e3 100644 --- a/test/files/neg/t6040.check +++ b/test/files/neg/t6040.check @@ -1,6 +1,6 @@ error: extension of type scala.Dynamic needs to be enabled by making the implicit value language.dynamics visible. -This can be achieved by adding the import clause 'import language.dynamics' +This can be achieved by adding the import clause 'import scala.language.dynamics' or by setting the compiler option -language:dynamics. See the Scala docs for value scala.language.dynamics for a discussion why the feature needs to be explicitly enabled. diff --git a/test/files/neg/t6162-inheritance.check b/test/files/neg/t6162-inheritance.check new file mode 100644 index 0000000000..e98fa79eb7 --- /dev/null +++ b/test/files/neg/t6162-inheritance.check @@ -0,0 +1,18 @@ +t6162-inheritance.scala:6: warning: inheritance from class Foo in package t6126 is deprecated: `Foo` will be made final in a future version. +class SubFoo extends Foo + ^ +t6162-inheritance.scala:11: warning: inheritance from trait T in package t6126 is deprecated +object SubT extends T + ^ +t6162-inheritance.scala:17: warning: inheritance from trait S in package t6126 is deprecated + new S { + ^ +t6162-inheritance.scala:6: warning: inheritance from class Foo in package t6126 is deprecated: `Foo` will be made final in a future version. +class SubFoo extends Foo + ^ +t6162-inheritance.scala:11: warning: inheritance from trait T in package t6126 is deprecated +object SubT extends T + ^ +error: No warnings can be incurred under -Xfatal-warnings. +5 warnings found +one error found diff --git a/test/files/neg/t6162-inheritance.flags b/test/files/neg/t6162-inheritance.flags new file mode 100644 index 0000000000..65faf53579 --- /dev/null +++ b/test/files/neg/t6162-inheritance.flags @@ -0,0 +1 @@ +-Xfatal-warnings -deprecation
\ No newline at end of file diff --git a/test/files/neg/t6162-inheritance.scala b/test/files/neg/t6162-inheritance.scala new file mode 100644 index 0000000000..7b47b9285a --- /dev/null +++ b/test/files/neg/t6162-inheritance.scala @@ -0,0 +1,19 @@ +package scala.t6126 + +@deprecatedInheritance("`Foo` will be made final in a future version.", "2.10.0") +class Foo + +class SubFoo extends Foo + +@deprecatedInheritance() +trait T + +object SubT extends T + +@deprecatedInheritance() +trait S + +object O { + new S { + } +} diff --git a/test/files/neg/t6162-overriding.check b/test/files/neg/t6162-overriding.check new file mode 100644 index 0000000000..6bff75d88d --- /dev/null +++ b/test/files/neg/t6162-overriding.check @@ -0,0 +1,9 @@ +t6162-overriding.scala:14: warning: overriding method bar in class Bar is deprecated: `bar` will be made private in a future version. + override def bar = 43 + ^ +t6162-overriding.scala:15: warning: overriding method baz in class Bar is deprecated + override def baz = 43 + ^ +error: No warnings can be incurred under -Xfatal-warnings. +two warnings found +one error found diff --git a/test/files/neg/t6162-overriding.flags b/test/files/neg/t6162-overriding.flags new file mode 100644 index 0000000000..65faf53579 --- /dev/null +++ b/test/files/neg/t6162-overriding.flags @@ -0,0 +1 @@ +-Xfatal-warnings -deprecation
\ No newline at end of file diff --git a/test/files/neg/t6162-overriding.scala b/test/files/neg/t6162-overriding.scala new file mode 100644 index 0000000000..4cab0c2dee --- /dev/null +++ b/test/files/neg/t6162-overriding.scala @@ -0,0 +1,17 @@ +package scala.t6162 + +class Bar { + @deprecatedOverriding("`bar` will be made private in a future version.", "2.10.0") + def bar = 42 + + @deprecatedOverriding() + def baz = 42 + + def baz(a: Any) = 0 +} + +class SubBar extends Bar { + override def bar = 43 + override def baz = 43 + override def baz(a: Any) = 43 // okay +} diff --git a/test/files/neg/t6258.check b/test/files/neg/t6258.check new file mode 100644 index 0000000000..73363d8280 --- /dev/null +++ b/test/files/neg/t6258.check @@ -0,0 +1,16 @@ +t6258.scala:2: error: missing parameter type for expanded function +The argument types of an anonymous function must be fully known. (SLS 8.5) +Expected type was: PartialFunction[?, Int] + val f : PartialFunction[_, Int] = { case a : Int => a } // undefined param + ^ +t6258.scala:5: error: missing parameter type for expanded function +The argument types of an anonymous function must be fully known. (SLS 8.5) +Expected type was: PartialFunction[?,Int] + foo { case a : Int => a } // undefined param + ^ +t6258.scala:22: error: missing parameter type for expanded function +The argument types of an anonymous function must be fully known. (SLS 8.5) +Expected type was: PartialFunction[?,Any] + bar[M[Any]] (foo { // undefined param + ^ +three errors found diff --git a/test/files/neg/t6258.scala b/test/files/neg/t6258.scala new file mode 100644 index 0000000000..5046a4750a --- /dev/null +++ b/test/files/neg/t6258.scala @@ -0,0 +1,25 @@ +object Test { + val f : PartialFunction[_, Int] = { case a : Int => a } // undefined param + + def foo[A](pf: PartialFunction[A, Int]) {}; + foo { case a : Int => a } // undefined param + + val g : PartialFunction[Int, _] = { case a : Int => a } // okay +} + + +// Another variation, seen in the wild with Specs2. +class X { + trait Matcher[-T] + + def bar[T](m: Matcher[T]) = null + def bar[T](i: Int) = null + + def foo[T](p: PartialFunction[T, Any]): Matcher[T] = null + + case class M[X](a: X) + + bar[M[Any]] (foo { // undefined param + case M(_) => null + }) +} diff --git a/test/files/neg/t6276.check b/test/files/neg/t6276.check new file mode 100644 index 0000000000..f275de9d0a --- /dev/null +++ b/test/files/neg/t6276.check @@ -0,0 +1,21 @@ +t6276.scala:4: warning: method a in class C does nothing other than call itself recursively + def a: Any = a // warn + ^ +t6276.scala:5: warning: value b in class C does nothing other than call itself recursively + val b: Any = b // warn + ^ +t6276.scala:7: warning: method c in class C does nothing other than call itself recursively + def c: Any = this.c // warn + ^ +t6276.scala:8: warning: method d in class C does nothing other than call itself recursively + def d: Any = C.this.d // warn + ^ +t6276.scala:13: warning: method a does nothing other than call itself recursively + def a: Any = a // warn + ^ +t6276.scala:22: warning: method a does nothing other than call itself recursively + def a = a // warn + ^ +error: No warnings can be incurred under -Xfatal-warnings. +6 warnings found +one error found diff --git a/test/files/neg/t6276.flags b/test/files/neg/t6276.flags new file mode 100644 index 0000000000..85d8eb2ba2 --- /dev/null +++ b/test/files/neg/t6276.flags @@ -0,0 +1 @@ +-Xfatal-warnings diff --git a/test/files/neg/t6276.scala b/test/files/neg/t6276.scala new file mode 100644 index 0000000000..bd0a473f71 --- /dev/null +++ b/test/files/neg/t6276.scala @@ -0,0 +1,44 @@ +object Test { + def foo(a: Int, b: Int, c: Int) { + class C { + def a: Any = a // warn + val b: Any = b // warn + + def c: Any = this.c // warn + def d: Any = C.this.d // warn + } + + def method { + // method local + def a: Any = a // warn + } + + trait T { + def a: Any + } + + new T { + // inherited return type + def a = a // warn + } + + // no warnings below + new { + def a: Any = {println(""); a} + val b: Any = {println(""); b} + def c(i: Int): Any = c(i - 0) + } + + class D { + def other: D = null + def foo: Any = other.foo + } + + class E { + def foo: Any = 0 + class D extends E { + override def foo: Any = E.this.foo + } + } + } +} diff --git a/test/files/neg/t6323a.check b/test/files/neg/t6323a.check new file mode 100644 index 0000000000..694c79ca5f --- /dev/null +++ b/test/files/neg/t6323a.check @@ -0,0 +1,9 @@ +t6323a.scala:11: `package`.this.materializeTypeTag[Test](scala.reflect.runtime.`package`.universe) is not a valid implicit value for reflect.runtime.universe.TypeTag[Test] because:
+failed to typecheck the materialized tag:
+cannot create a TypeTag referring to local class Test.Test
+ val value = u.typeOf[Test]
+ ^
+t6323a.scala:11: error: No TypeTag available for Test
+ val value = u.typeOf[Test]
+ ^
+one error found
diff --git a/test/files/neg/t6323a.flags b/test/files/neg/t6323a.flags new file mode 100644 index 0000000000..4c6cdb71e2 --- /dev/null +++ b/test/files/neg/t6323a.flags @@ -0,0 +1 @@ +-Xlog-implicits
\ No newline at end of file diff --git a/test/files/neg/t6323a.scala b/test/files/neg/t6323a.scala new file mode 100644 index 0000000000..a203167f3c --- /dev/null +++ b/test/files/neg/t6323a.scala @@ -0,0 +1,21 @@ +import scala.reflect.runtime.universe._ +import scala.reflect.runtime.{currentMirror => m} +import scala.reflect.runtime.{universe => u} + +object Test extends App { + locally { + try { + case class Test(a:String,b:List[Int]) + + val lookAtMe = m.reflect(Test("a",List(5))) + val value = u.typeOf[Test] + val members = value.members + val member = value.members.filter(_.name.encoded == "a") + val aAccessor = lookAtMe.reflectMethod(member.head.asMethod) + val thisShouldBeA = aAccessor.apply() + println(thisShouldBeA) + } catch { + case ScalaReflectionException(msg) => println(msg) + } + } +}
\ No newline at end of file diff --git a/test/files/neg/t6335.check b/test/files/neg/t6335.check new file mode 100644 index 0000000000..1727a05eb2 --- /dev/null +++ b/test/files/neg/t6335.check @@ -0,0 +1,9 @@ +t6335.scala:6: error: method Z is defined twice + conflicting symbols both originated in file 't6335.scala' + implicit class Z[A](val i: A) { def zz = i } + ^ +t6335.scala:3: error: method X is defined twice + conflicting symbols both originated in file 't6335.scala' + implicit class X(val x: Int) { def xx = x } + ^ +two errors found diff --git a/test/files/neg/t6335.scala b/test/files/neg/t6335.scala new file mode 100644 index 0000000000..5c41e81ef5 --- /dev/null +++ b/test/files/neg/t6335.scala @@ -0,0 +1,7 @@ +object ImplicitClass { + def X(i: Int) {} + implicit class X(val x: Int) { def xx = x } + + def Z[A](i: A) {} + implicit class Z[A](val i: A) { def zz = i } +}
\ No newline at end of file diff --git a/test/files/neg/t6340.check b/test/files/neg/t6340.check new file mode 100644 index 0000000000..f18b8c3f4b --- /dev/null +++ b/test/files/neg/t6340.check @@ -0,0 +1,10 @@ +t6340.scala:11: error: value D is not a member of object Foo + import Foo.{ A, B, C, D, E, X, Y, Z } + ^ +t6340.scala:16: error: not found: type D + val d = new D + ^ +t6340.scala:17: error: not found: type W + val w = new W + ^ +three errors found diff --git a/test/files/neg/t6340.scala b/test/files/neg/t6340.scala new file mode 100644 index 0000000000..8934d5c15d --- /dev/null +++ b/test/files/neg/t6340.scala @@ -0,0 +1,21 @@ +object Foo { + class A + class B + class C + class X + class Y + class Z +} + +object Test { + import Foo.{ A, B, C, D, E, X, Y, Z } + + val a = new A + val b = new B + val c = new C + val d = new D + val w = new W + val x = new X + val y = new Y + val z = new Z +} diff --git a/test/files/neg/t6359.check b/test/files/neg/t6359.check new file mode 100644 index 0000000000..2aa1ac5035 --- /dev/null +++ b/test/files/neg/t6359.check @@ -0,0 +1,7 @@ +t6359.scala:3: error: value class may not have nested module definitions + object X + ^ +t6359.scala:4: error: value class may not have nested class definitions + class Y + ^ +two errors found diff --git a/test/files/neg/t6359.scala b/test/files/neg/t6359.scala new file mode 100644 index 0000000000..96550fd906 --- /dev/null +++ b/test/files/neg/t6359.scala @@ -0,0 +1,8 @@ +class M(val t: Int) extends AnyVal { + def lazyString = { + object X + class Y + + () => {X; new Y} + } +} diff --git a/test/files/neg/wrong-args-for-none.check b/test/files/neg/wrong-args-for-none.check new file mode 100644 index 0000000000..d3b2d572ab --- /dev/null +++ b/test/files/neg/wrong-args-for-none.check @@ -0,0 +1,4 @@ +wrong-args-for-none.scala:5: error: wrong number of arguments for pattern Test.Foo(x: Int,y: Int) + def f(x: Any) = x match { case Bar(Foo(5)) => } + ^ +one error found diff --git a/test/files/neg/wrong-args-for-none.scala b/test/files/neg/wrong-args-for-none.scala new file mode 100644 index 0000000000..1caa4782a3 --- /dev/null +++ b/test/files/neg/wrong-args-for-none.scala @@ -0,0 +1,6 @@ +object Test { + case class Foo(x: Int, y: Int) + case class Bar(x: AnyRef) + + def f(x: Any) = x match { case Bar(Foo(5)) => } +} diff --git a/test/files/pos/t6047.scala b/test/files/pos/t6047.scala index 80d5e9668b..bc5f856bd2 100644 --- a/test/files/pos/t6047.scala +++ b/test/files/pos/t6047.scala @@ -4,17 +4,17 @@ import java.io.InputStream object Macros { def unpack[A](input: InputStream): A = macro unpack_impl[A] - def unpack_impl[A: c.AbsTypeTag](c: Context)(input: c.Expr[InputStream]): c.Expr[A] = { + def unpack_impl[A: c.WeakTypeTag](c: Context)(input: c.Expr[InputStream]): c.Expr[A] = { import c.universe._ def unpackcode(tpe: c.Type): c.Expr[_] = { - if (tpe <:< implicitly[c.AbsTypeTag[Traversable[_]]].tpe) { + if (tpe <:< implicitly[c.WeakTypeTag[Traversable[_]]].tpe) { } ??? } - unpackcode(implicitly[c.AbsTypeTag[A]].tpe) + unpackcode(implicitly[c.WeakTypeTag[A]].tpe) ??? } }
\ No newline at end of file diff --git a/test/files/pos/t6259.scala b/test/files/pos/t6259.scala new file mode 100644 index 0000000000..43361c417e --- /dev/null +++ b/test/files/pos/t6259.scala @@ -0,0 +1,47 @@ +package t6259 + +import scala.reflect.runtime.universe._ + +class A[X](implicit val tt: TypeTag[X]) {} +object B extends A[String] + +object C { + object D extends A[String] +} + +trait E { + object F extends A[String] +} + +class G { + object H extends A[String] +} + +object Test { + val x = { + object InVal extends A[String] + 5 + } + +} + +// Note: Both of these fail right now. + +trait NeedsEarly { + val x: AnyRef +} + +object Early extends { + // Drops to this.getClass and is not ok... + val x = { object EarlyOk extends A[String]; EarlyOk } +} with NeedsEarly + + +class DoubleTrouble[X](x: AnyRef)(implicit override val tt: TypeTag[X]) extends A[X] + +object DoubleOk extends DoubleTrouble[String]({ + // Drops to this.getClass and is an issue + object InnerTrouble extends A[String]; + InnerTrouble +}) + diff --git a/test/files/pos/t6335.scala b/test/files/pos/t6335.scala new file mode 100644 index 0000000000..50e34092d1 --- /dev/null +++ b/test/files/pos/t6335.scala @@ -0,0 +1,25 @@ +object E extends Z { + def X = 3 + implicit class X(val i: Int) { + def xx = i + } + + def Y(a: Any) = 0 + object Y + implicit class Y(val i: String) { def yy = i } + + implicit class Z(val i: Boolean) { def zz = i } +} + +trait Z { + def Z = 0 +} + +object Test { + import E._ + 0.xx + + "".yy + + true.zz +} diff --git a/test/files/pos/t6367.scala b/test/files/pos/t6367.scala new file mode 100644 index 0000000000..1214be7418 --- /dev/null +++ b/test/files/pos/t6367.scala @@ -0,0 +1,34 @@ +package play.api.libs.json.util + +trait FunctionalCanBuild[M[_]]{ + def apply[A,B](ma:M[A], mb:M[B]):M[A ~ B] +} + +trait Variant[M[_]] + +trait Functor[M[_]] extends Variant[M]{ + def fmap[A,B](m:M[A], f: A => B): M[B] +} + +case class ~[A,B](_1:A,_2:B) + +class FunctionalBuilder[M[_]](canBuild:FunctionalCanBuild[M]){ + class CanBuild20[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20]( + m1:M[A1 ~ A2 ~ A3 ~ A4 ~ A5 ~ A6 ~ A7 ~ A8 ~ A9 ~ A10 ~ A11 ~ A12 ~ A13 ~ A14 ~ A15 ~ A16 ~ A17 ~ A18 ~ A19], + m2:M[A20] + ) { + + def ~[A21](m3:M[A21]) = new CanBuild21(canBuild(m1,m2),m3) + + def apply[B](f: (A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20) => B)(implicit fu:Functor[M]): M[B] = + fu.fmap[A1 ~ A2 ~ A3 ~ A4 ~ A5 ~ A6 ~ A7 ~ A8 ~ A9 ~ A10 ~ A11 ~ A12 ~ A13 ~ A14 ~ A15 ~ A16 ~ A17 ~ A18 ~ A19 ~ A20, B]( + canBuild(m1, m2), + { case a1 ~ a2 ~ a3 ~ a4 ~ a5 ~ a6 ~ a7 ~ a8 ~ a9 ~ a10 ~ a11 ~ a12 ~ a13 ~ a14 ~ a15 ~ a16 ~ a17 ~ a18 ~ a19 ~ a20 => + f(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) } + ) + } + + class CanBuild21[A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21](m1:M[A1 ~ A2 ~ A3 ~ A4 ~ A5 ~ A6 ~ A7 ~ A8 ~ A9 ~ A10 ~ A11 ~ A12 ~ A13 ~ A14 ~ A15 ~ A16 ~ A17 ~ A18 ~ A19 ~ A20], m2:M[A21]){ + } + +} diff --git a/test/files/pos/z1720.scala b/test/files/pos/z1720.scala new file mode 100644 index 0000000000..7394d428c1 --- /dev/null +++ b/test/files/pos/z1720.scala @@ -0,0 +1,16 @@ +package test + +class Thing { + def info: Info[this.type] = InfoRepository.getInfo(this) + def info2: Info[this.type] = { + def self: this.type = this + InfoRepository.getInfo(self) + } +} + +trait Info[T] +case class InfoImpl[T](thing: T) extends Info[T] + +object InfoRepository { + def getInfo(t: Thing): Info[t.type] = InfoImpl(t) +} diff --git a/test/files/run/abstypetags_core.scala b/test/files/run/abstypetags_core.scala index 226de94055..2692fec035 100644 --- a/test/files/run/abstypetags_core.scala +++ b/test/files/run/abstypetags_core.scala @@ -1,34 +1,34 @@ import scala.reflect.runtime.universe._ object Test extends App { - println(implicitly[AbsTypeTag[Byte]] eq AbsTypeTag.Byte) - println(implicitly[AbsTypeTag[Byte]]) - println(implicitly[AbsTypeTag[Short]] eq AbsTypeTag.Short) - println(implicitly[AbsTypeTag[Short]]) - println(implicitly[AbsTypeTag[Char]] eq AbsTypeTag.Char) - println(implicitly[AbsTypeTag[Char]]) - println(implicitly[AbsTypeTag[Int]] eq AbsTypeTag.Int) - println(implicitly[AbsTypeTag[Int]]) - println(implicitly[AbsTypeTag[Long]] eq AbsTypeTag.Long) - println(implicitly[AbsTypeTag[Long]]) - println(implicitly[AbsTypeTag[Float]] eq AbsTypeTag.Float) - println(implicitly[AbsTypeTag[Float]]) - println(implicitly[AbsTypeTag[Double]] eq AbsTypeTag.Double) - println(implicitly[AbsTypeTag[Double]]) - println(implicitly[AbsTypeTag[Boolean]] eq AbsTypeTag.Boolean) - println(implicitly[AbsTypeTag[Boolean]]) - println(implicitly[AbsTypeTag[Unit]] eq AbsTypeTag.Unit) - println(implicitly[AbsTypeTag[Unit]]) - println(implicitly[AbsTypeTag[Any]] eq AbsTypeTag.Any) - println(implicitly[AbsTypeTag[Any]]) - println(implicitly[AbsTypeTag[AnyVal]] eq AbsTypeTag.AnyVal) - println(implicitly[AbsTypeTag[AnyVal]]) - println(implicitly[AbsTypeTag[AnyRef]] eq AbsTypeTag.AnyRef) - println(implicitly[AbsTypeTag[AnyRef]]) - println(implicitly[AbsTypeTag[Object]] eq AbsTypeTag.Object) - println(implicitly[AbsTypeTag[Object]]) - println(implicitly[AbsTypeTag[Null]] eq AbsTypeTag.Null) - println(implicitly[AbsTypeTag[Null]]) - println(implicitly[AbsTypeTag[Nothing]] eq AbsTypeTag.Nothing) - println(implicitly[AbsTypeTag[Nothing]]) + println(implicitly[WeakTypeTag[Byte]] eq WeakTypeTag.Byte) + println(implicitly[WeakTypeTag[Byte]]) + println(implicitly[WeakTypeTag[Short]] eq WeakTypeTag.Short) + println(implicitly[WeakTypeTag[Short]]) + println(implicitly[WeakTypeTag[Char]] eq WeakTypeTag.Char) + println(implicitly[WeakTypeTag[Char]]) + println(implicitly[WeakTypeTag[Int]] eq WeakTypeTag.Int) + println(implicitly[WeakTypeTag[Int]]) + println(implicitly[WeakTypeTag[Long]] eq WeakTypeTag.Long) + println(implicitly[WeakTypeTag[Long]]) + println(implicitly[WeakTypeTag[Float]] eq WeakTypeTag.Float) + println(implicitly[WeakTypeTag[Float]]) + println(implicitly[WeakTypeTag[Double]] eq WeakTypeTag.Double) + println(implicitly[WeakTypeTag[Double]]) + println(implicitly[WeakTypeTag[Boolean]] eq WeakTypeTag.Boolean) + println(implicitly[WeakTypeTag[Boolean]]) + println(implicitly[WeakTypeTag[Unit]] eq WeakTypeTag.Unit) + println(implicitly[WeakTypeTag[Unit]]) + println(implicitly[WeakTypeTag[Any]] eq WeakTypeTag.Any) + println(implicitly[WeakTypeTag[Any]]) + println(implicitly[WeakTypeTag[AnyVal]] eq WeakTypeTag.AnyVal) + println(implicitly[WeakTypeTag[AnyVal]]) + println(implicitly[WeakTypeTag[AnyRef]] eq WeakTypeTag.AnyRef) + println(implicitly[WeakTypeTag[AnyRef]]) + println(implicitly[WeakTypeTag[Object]] eq WeakTypeTag.Object) + println(implicitly[WeakTypeTag[Object]]) + println(implicitly[WeakTypeTag[Null]] eq WeakTypeTag.Null) + println(implicitly[WeakTypeTag[Null]]) + println(implicitly[WeakTypeTag[Nothing]] eq WeakTypeTag.Nothing) + println(implicitly[WeakTypeTag[Nothing]]) }
\ No newline at end of file diff --git a/test/files/run/abstypetags_serialize.scala b/test/files/run/abstypetags_serialize.scala index 5b9142f6d5..38a7aba325 100644 --- a/test/files/run/abstypetags_serialize.scala +++ b/test/files/run/abstypetags_serialize.scala @@ -3,7 +3,7 @@ import scala.reflect.runtime.universe._ import scala.reflect.runtime.{currentMirror => cm} object Test extends App { - def test(tag: AbsTypeTag[_]) = + def test(tag: WeakTypeTag[_]) = try { val fout = new ByteArrayOutputStream() val out = new ObjectOutputStream(fout) @@ -13,7 +13,7 @@ object Test extends App { val fin = new ByteArrayInputStream(fout.toByteArray) val in = new ObjectInputStream(fin) - val retag = in.readObject().asInstanceOf[scala.reflect.basis.AbsTypeTag[_]].in(cm) + val retag = in.readObject().asInstanceOf[scala.reflect.basis.WeakTypeTag[_]].in(cm) in.close() fin.close() @@ -24,8 +24,8 @@ object Test extends App { } def qwe[T, U[_]] = { - test(implicitly[AbsTypeTag[T]]) - test(implicitly[AbsTypeTag[U[String]]]) + test(implicitly[WeakTypeTag[T]]) + test(implicitly[WeakTypeTag[U[String]]]) } qwe diff --git a/test/files/run/classtags_core.check b/test/files/run/classtags_core.check index 6519db2178..5a9b41fd6d 100644 --- a/test/files/run/classtags_core.check +++ b/test/files/run/classtags_core.check @@ -1,30 +1,30 @@ true
-ClassTag[byte]
+Byte
true
-ClassTag[short]
+Short
true
-ClassTag[char]
+Char
true
-ClassTag[int]
+Int
true
-ClassTag[long]
+Long
true
-ClassTag[float]
+Float
true
-ClassTag[double]
+Double
true
-ClassTag[boolean]
+Boolean
true
-ClassTag[void]
+Unit
true
-ClassTag[class java.lang.Object]
+Any
true
-ClassTag[class java.lang.Object]
+AnyVal
true
-ClassTag[class java.lang.Object]
+Object
true
-ClassTag[class java.lang.Object]
+Object
true
-ClassTag[class scala.runtime.Null$]
+Null
true
-ClassTag[class scala.runtime.Nothing$]
+Nothing
diff --git a/test/files/run/classtags_multi.check b/test/files/run/classtags_multi.check index 3a7f16c3a0..68cee4841d 100644 --- a/test/files/run/classtags_multi.check +++ b/test/files/run/classtags_multi.check @@ -1,5 +1,5 @@ -ClassTag[int]
-ClassTag[class [I]
-ClassTag[class [[I]
-ClassTag[class [[[I]
-ClassTag[class [[[[I]
+Int
+Array[int]
+Array[Array[int]]
+Array[Array[Array[int]]]
+Array[Array[Array[Array[int]]]]
diff --git a/test/files/run/compiler-asSeenFrom.check b/test/files/run/compiler-asSeenFrom.check index 96e257d303..47d40b0331 100644 --- a/test/files/run/compiler-asSeenFrom.check +++ b/test/files/run/compiler-asSeenFrom.check @@ -269,8 +269,8 @@ value jZ { // after parser value jZ { // after explicitouter protected val $outer: D.this.type - val ll$D$J$$$outer(): D.this.type - val ll$C$I$$$outer(): C.this.type + val $outer(): D.this.type + val $outer(): C.this.type def thisI(): I.this.type def thisC(): C.this.type def t2(): T2 @@ -279,9 +279,9 @@ value jZ { // after explicitouter value jZ { // after erasure protected val $outer: ll.D - val ll$D$J$$$outer(): ll.D + val $outer(): ll.D protected val $outer: ll.C - val ll$C$I$$$outer(): ll.C + val $outer(): ll.C def thisI(): ll.C#I def thisC(): ll.C def t2(): Object @@ -290,9 +290,9 @@ value jZ { // after erasure value jZ { // after flatten protected val $outer: ll.D - val ll$D$J$$$outer(): ll.D + val $outer(): ll.D protected val $outer: ll.C - val ll$C$I$$$outer(): ll.C + val $outer(): ll.C def thisI(): ll.C#C$I def thisC(): ll.C def t2(): Object diff --git a/test/files/run/existentials3-new.check b/test/files/run/existentials3-new.check index a036d92a24..2550f4dae0 100644 --- a/test/files/run/existentials3-new.check +++ b/test/files/run/existentials3-new.check @@ -1,24 +1,24 @@ -Bar.type, t=TypeRef, s= <: scala.runtime.AbstractFunction0[Bar] with Serializable{case def unapply(x$0: Bar): Boolean} with Singleton
-Bar, t=TypeRef, s= <: Test.ToS with Product with Serializable{def copy(): Bar}
+Bar.type, t=TypeRef, s=type Bar.type
+Bar, t=TypeRef, s=type Bar
Test.ToS, t=RefinedType, s=f3
Test.ToS, t=RefinedType, s=f4
Test.ToS, t=RefinedType, s=f5
() => Test.ToS, t=TypeRef, s=class Function0
() => Test.ToS, t=TypeRef, s=class Function0
-$anon, t=TypeRef, s= <: B with Test.ToS
-$anon, t=TypeRef, s= <: B with A with Test.ToS
+$anon, t=TypeRef, s=type $anon
+$anon, t=TypeRef, s=type $anon
List[java.lang.Object{type T1}#T1], t=TypeRef, s=class List
List[Seq[Int]], t=TypeRef, s=class List
List[Seq[U forSome { type U <: Int }]], t=TypeRef, s=class List
-Bar.type, t=TypeRef, s= <: scala.runtime.AbstractFunction0[Bar] with Serializable{case def unapply(x$0: Bar): Boolean} with Singleton
-Bar, t=TypeRef, s= <: Test.ToS with Product with Serializable{def copy(): Bar}
+Bar.type, t=TypeRef, s=type Bar.type
+Bar, t=TypeRef, s=type Bar
Test.ToS, t=RefinedType, s=g3
Test.ToS, t=RefinedType, s=g4
Test.ToS, t=RefinedType, s=g5
() => Test.ToS, t=TypeRef, s=class Function0
() => Test.ToS, t=TypeRef, s=class Function0
-$anon, t=TypeRef, s= <: B with Test.ToS
-$anon, t=TypeRef, s= <: B with A with Test.ToS
+$anon, t=TypeRef, s=type $anon
+$anon, t=TypeRef, s=type $anon
List[java.lang.Object{type T1}#T1], t=TypeRef, s=class List
List[Seq[Int]], t=TypeRef, s=class List
List[Seq[U forSome { type U <: Int }]], t=TypeRef, s=class List
diff --git a/test/files/run/existentials3-new.scala b/test/files/run/existentials3-new.scala index 16735eab4f..110c8eff7a 100644 --- a/test/files/run/existentials3-new.scala +++ b/test/files/run/existentials3-new.scala @@ -38,31 +38,31 @@ object Test { println("%s, t=%s, s=%s".format(t, t.asInstanceOf[Product].productPrefix, s)) } def m[T: TypeTag](x: T) = printTpe(typeOf[T]) - def m2[T: AbsTypeTag](x: T) = printTpe(implicitly[AbsTypeTag[T]].tpe) + def m2[T: WeakTypeTag](x: T) = printTpe(implicitly[WeakTypeTag[T]].tpe) // tags do work for f10/g10 def main(args: Array[String]): Unit = { - m(f1) - m(f2) + m2(f1) + m2(f2) m(f3) m(f4) m(f5) m(f6) m(f7) - m(f8) - m(f9) + m2(f8) + m2(f9) m2(f10) m(f11) m(f12) - m(g1) - m(g2) + m2(g1) + m2(g2) m(g3) m(g4) m(g5) m(g6) m(g7) - m(g8) - m(g9) + m2(g8) + m2(g9) m2(g10) m(g11) m(g12) diff --git a/test/files/run/getClassTest-valueClass.check b/test/files/run/getClassTest-valueClass.check new file mode 100644 index 0000000000..7608d92b4e --- /dev/null +++ b/test/files/run/getClassTest-valueClass.check @@ -0,0 +1,2 @@ +int +class V diff --git a/test/files/run/getClassTest-valueClass.scala b/test/files/run/getClassTest-valueClass.scala new file mode 100644 index 0000000000..05a116dfff --- /dev/null +++ b/test/files/run/getClassTest-valueClass.scala @@ -0,0 +1,10 @@ +class V(val x: Int) extends AnyVal + +object Test { + def main(args: Array[String]) = { + val v = new V(2) + val s: Any = 2 + println(2.getClass) + println(v.getClass) + } +} diff --git a/test/files/run/interop_classtags_are_classmanifests.check b/test/files/run/interop_classtags_are_classmanifests.check index 7a0a829af2..c07ed0e657 100644 --- a/test/files/run/interop_classtags_are_classmanifests.check +++ b/test/files/run/interop_classtags_are_classmanifests.check @@ -1,3 +1,3 @@ -ClassTag[int]
-ClassTag[class java.lang.String]
-ClassTag[class [I]
+Int
+java.lang.String
+Array[int]
diff --git a/test/files/run/interop_manifests_are_abstypetags.scala b/test/files/run/interop_manifests_are_abstypetags.scala index 1cba2fdb4b..f2c2723106 100644 --- a/test/files/run/interop_manifests_are_abstypetags.scala +++ b/test/files/run/interop_manifests_are_abstypetags.scala @@ -1,11 +1,11 @@ import scala.reflect.runtime.universe._ object Test extends App { - def manifestIsAbsTypeTag[T: Manifest] = { - println(implicitly[AbsTypeTag[T]].tpe) + def manifestIsWeakTypeTag[T: Manifest] = { + println(implicitly[WeakTypeTag[T]].tpe) } - manifestIsAbsTypeTag[Int] - manifestIsAbsTypeTag[String] - manifestIsAbsTypeTag[Array[Int]] + manifestIsWeakTypeTag[Int] + manifestIsWeakTypeTag[String] + manifestIsWeakTypeTag[Array[Int]] }
\ No newline at end of file diff --git a/test/files/run/macro-def-path-dependent-d1/Impls_Macros_1.scala b/test/files/run/macro-def-path-dependent-d1/Impls_Macros_1.scala index 2daf6fc3fb..69d9708b2a 100644 --- a/test/files/run/macro-def-path-dependent-d1/Impls_Macros_1.scala +++ b/test/files/run/macro-def-path-dependent-d1/Impls_Macros_1.scala @@ -5,5 +5,5 @@ import scala.reflect.api.Universe object Test { def materializeTypeTag[T](u: Universe)(e: T) = macro materializeTypeTag_impl[T] - def materializeTypeTag_impl[T: c.AbsTypeTag](c: Context)(u: c.Expr[Universe])(e: c.Expr[T]): c.Expr[u.value.TypeTag[T]] = ??? + def materializeTypeTag_impl[T: c.WeakTypeTag](c: Context)(u: c.Expr[Universe])(e: c.Expr[T]): c.Expr[u.value.TypeTag[T]] = ??? }
\ No newline at end of file diff --git a/test/files/run/macro-def-path-dependent-d2/Impls_1.scala b/test/files/run/macro-def-path-dependent-d2/Impls_1.scala index 1cda64e43e..7fa9c3579e 100644 --- a/test/files/run/macro-def-path-dependent-d2/Impls_1.scala +++ b/test/files/run/macro-def-path-dependent-d2/Impls_1.scala @@ -3,5 +3,5 @@ import scala.reflect.macros.Context import scala.reflect.api.Universe object Impls { - def materializeTypeTag_impl[T: c.AbsTypeTag](c: Context)(u: c.Expr[Universe])(e: c.Expr[T]): c.Expr[u.value.TypeTag[T]] = ??? + def materializeTypeTag_impl[T: c.WeakTypeTag](c: Context)(u: c.Expr[Universe])(e: c.Expr[T]): c.Expr[u.value.TypeTag[T]] = ??? }
\ No newline at end of file diff --git a/test/files/run/macro-expand-implicit-argument/Macros_1.scala b/test/files/run/macro-expand-implicit-argument/Macros_1.scala index 7629c5a9e2..86c4198870 100644 --- a/test/files/run/macro-expand-implicit-argument/Macros_1.scala +++ b/test/files/run/macro-expand-implicit-argument/Macros_1.scala @@ -35,7 +35,7 @@ object Macros { * arr * } */ - def arrayMacro[A:c.AbsTypeTag](c:Context)(as:c.Expr[A]*)(ct: c.Expr[ClassTag[A]]): c.Expr[Array[A]] = { + def arrayMacro[A:c.WeakTypeTag](c:Context)(as:c.Expr[A]*)(ct: c.Expr[ClassTag[A]]): c.Expr[Array[A]] = { import c.mirror._ import c.universe._ def const(x:Int) = Literal(Constant(x)) @@ -44,7 +44,7 @@ object Macros { val arr = newTermName("arr") val create = Apply(Select(ct.tree, "newArray"), List(const(n))) - val arrtpe = TypeTree(implicitly[c.AbsTypeTag[Array[A]]].tpe) + val arrtpe = TypeTree(implicitly[c.WeakTypeTag[Array[A]]].tpe) val valdef = ValDef(Modifiers(), arr, arrtpe, create) val updates = (0 until n).map { diff --git a/test/files/run/macro-expand-nullary-generic/Impls_1.scala b/test/files/run/macro-expand-nullary-generic/Impls_1.scala index fbbc23a824..1180c83a40 100644 --- a/test/files/run/macro-expand-nullary-generic/Impls_1.scala +++ b/test/files/run/macro-expand-nullary-generic/Impls_1.scala @@ -2,14 +2,14 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def impl[T: c.AbsTypeTag](c: Ctx) = { + def impl[T: c.WeakTypeTag](c: Ctx) = { import c.universe._ - val body = Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("it works " + implicitly[c.AbsTypeTag[T]])))) + val body = Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("it works " + implicitly[c.WeakTypeTag[T]])))) c.Expr[Unit](body) } - def fooNullary[T: c.AbsTypeTag](c: Ctx) = impl[T](c) - def fooEmpty[T: c.AbsTypeTag](c: Ctx)() = impl[T](c) - def barNullary[T: c.AbsTypeTag](c: Ctx)(x: c.Expr[Int]) = impl[T](c) - def barEmpty[T: c.AbsTypeTag](c: Ctx)(x: c.Expr[Int])() = impl[T](c) + def fooNullary[T: c.WeakTypeTag](c: Ctx) = impl[T](c) + def fooEmpty[T: c.WeakTypeTag](c: Ctx)() = impl[T](c) + def barNullary[T: c.WeakTypeTag](c: Ctx)(x: c.Expr[Int]) = impl[T](c) + def barEmpty[T: c.WeakTypeTag](c: Ctx)(x: c.Expr[Int])() = impl[T](c) }
\ No newline at end of file diff --git a/test/files/run/macro-expand-tparams-explicit/Impls_1.scala b/test/files/run/macro-expand-tparams-explicit/Impls_1.scala index 0a879687e8..72b420d92f 100644 --- a/test/files/run/macro-expand-tparams-explicit/Impls_1.scala +++ b/test/files/run/macro-expand-tparams-explicit/Impls_1.scala @@ -2,9 +2,9 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[U: c.AbsTypeTag](c: Ctx) = { + def foo[U: c.WeakTypeTag](c: Ctx) = { import c.universe._ - val U = implicitly[c.AbsTypeTag[U]] + val U = implicitly[c.WeakTypeTag[U]] val body = Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(U.toString)))) c.Expr[Unit](body) } diff --git a/test/files/run/macro-expand-tparams-implicit.check b/test/files/run/macro-expand-tparams-implicit.check index 80c6b826ba..37226ec68d 100644 --- a/test/files/run/macro-expand-tparams-implicit.check +++ b/test/files/run/macro-expand-tparams-implicit.check @@ -1,2 +1,2 @@ TypeTag[Int]
-TypeTag[String]
+WeakTypeTag[String]
diff --git a/test/files/run/macro-expand-tparams-implicit/Impls_1.scala b/test/files/run/macro-expand-tparams-implicit/Impls_1.scala index f6cb63b9c9..33770516df 100644 --- a/test/files/run/macro-expand-tparams-implicit/Impls_1.scala +++ b/test/files/run/macro-expand-tparams-implicit/Impls_1.scala @@ -2,9 +2,9 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[U: c.AbsTypeTag](c: Ctx)(x: c.Expr[U]) = { + def foo[U: c.WeakTypeTag](c: Ctx)(x: c.Expr[U]) = { import c.universe._ - val U = implicitly[c.AbsTypeTag[U]] + val U = implicitly[c.WeakTypeTag[U]] val body = Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(U.toString)))) c.Expr[Unit](body) } diff --git a/test/files/run/macro-expand-tparams-prefix-a.check b/test/files/run/macro-expand-tparams-prefix-a.check index 6c23b47d64..7ef9fa7330 100644 --- a/test/files/run/macro-expand-tparams-prefix-a.check +++ b/test/files/run/macro-expand-tparams-prefix-a.check @@ -1,4 +1,4 @@ TypeTag[Int]
TypeTag[Int]
-TypeTag[String]
+WeakTypeTag[String]
TypeTag[Boolean]
diff --git a/test/files/run/macro-expand-tparams-prefix-a/Impls_1.scala b/test/files/run/macro-expand-tparams-prefix-a/Impls_1.scala index f6cb63b9c9..33770516df 100644 --- a/test/files/run/macro-expand-tparams-prefix-a/Impls_1.scala +++ b/test/files/run/macro-expand-tparams-prefix-a/Impls_1.scala @@ -2,9 +2,9 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[U: c.AbsTypeTag](c: Ctx)(x: c.Expr[U]) = { + def foo[U: c.WeakTypeTag](c: Ctx)(x: c.Expr[U]) = { import c.universe._ - val U = implicitly[c.AbsTypeTag[U]] + val U = implicitly[c.WeakTypeTag[U]] val body = Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(U.toString)))) c.Expr[Unit](body) } diff --git a/test/files/run/macro-expand-tparams-prefix-b.check b/test/files/run/macro-expand-tparams-prefix-b.check index 67dabff11e..f4a2a8e80d 100644 --- a/test/files/run/macro-expand-tparams-prefix-b.check +++ b/test/files/run/macro-expand-tparams-prefix-b.check @@ -1,2 +1,2 @@ TypeTag[Boolean] TypeTag[Int]
-TypeTag[Boolean] TypeTag[String]
+TypeTag[Boolean] WeakTypeTag[String]
diff --git a/test/files/run/macro-expand-tparams-prefix-b/Impls_1.scala b/test/files/run/macro-expand-tparams-prefix-b/Impls_1.scala index 7e0fa26569..9378e67712 100644 --- a/test/files/run/macro-expand-tparams-prefix-b/Impls_1.scala +++ b/test/files/run/macro-expand-tparams-prefix-b/Impls_1.scala @@ -2,10 +2,10 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T: c.AbsTypeTag, U: c.AbsTypeTag](c: Ctx)(x: c.Expr[U]) = { + def foo[T: c.WeakTypeTag, U: c.WeakTypeTag](c: Ctx)(x: c.Expr[U]) = { import c.universe._ - val T = implicitly[c.AbsTypeTag[T]] - val U = implicitly[c.AbsTypeTag[U]] + val T = implicitly[c.WeakTypeTag[T]] + val U = implicitly[c.WeakTypeTag[U]] val body = Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(T.toString + " " + U.toString)))) c.Expr[Unit](body) } diff --git a/test/files/run/macro-expand-tparams-prefix-c1.check b/test/files/run/macro-expand-tparams-prefix-c1.check index 8d1c4e3416..473668ac58 100644 --- a/test/files/run/macro-expand-tparams-prefix-c1.check +++ b/test/files/run/macro-expand-tparams-prefix-c1.check @@ -1,3 +1,3 @@ TypeTag[Int]
-TypeTag[String]
+WeakTypeTag[String]
TypeTag[Boolean]
diff --git a/test/files/run/macro-expand-tparams-prefix-c1/Impls_1.scala b/test/files/run/macro-expand-tparams-prefix-c1/Impls_1.scala index ca515be627..afdd7d4f7a 100644 --- a/test/files/run/macro-expand-tparams-prefix-c1/Impls_1.scala +++ b/test/files/run/macro-expand-tparams-prefix-c1/Impls_1.scala @@ -2,11 +2,11 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T, U: c.AbsTypeTag, V](c: Ctx)(implicit T: c.AbsTypeTag[T], V: c.AbsTypeTag[V]): c.Expr[Unit] = { + def foo[T, U: c.WeakTypeTag, V](c: Ctx)(implicit T: c.WeakTypeTag[T], V: c.WeakTypeTag[V]): c.Expr[Unit] = { import c.universe._ c.Expr(Block(List( Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(T.toString)))), - Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.AbsTypeTag[U]].toString)))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.WeakTypeTag[U]].toString)))), Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(V.toString))))), Literal(Constant(())))) } diff --git a/test/files/run/macro-expand-tparams-prefix-c2.check b/test/files/run/macro-expand-tparams-prefix-c2.check index 8d1c4e3416..473668ac58 100644 --- a/test/files/run/macro-expand-tparams-prefix-c2.check +++ b/test/files/run/macro-expand-tparams-prefix-c2.check @@ -1,3 +1,3 @@ TypeTag[Int]
-TypeTag[String]
+WeakTypeTag[String]
TypeTag[Boolean]
diff --git a/test/files/run/macro-expand-tparams-prefix-c2/Impls_Macros_1.scala b/test/files/run/macro-expand-tparams-prefix-c2/Impls_Macros_1.scala index 5a554590d8..3c2838208a 100644 --- a/test/files/run/macro-expand-tparams-prefix-c2/Impls_Macros_1.scala +++ b/test/files/run/macro-expand-tparams-prefix-c2/Impls_Macros_1.scala @@ -2,11 +2,11 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T, U: c.AbsTypeTag, V](c: Ctx)(implicit T: c.AbsTypeTag[T], V: c.AbsTypeTag[V]): c.Expr[Unit] = { + def foo[T, U: c.WeakTypeTag, V](c: Ctx)(implicit T: c.WeakTypeTag[T], V: c.WeakTypeTag[V]): c.Expr[Unit] = { import c.universe._ c.Expr(Block(List( Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(T.toString)))), - Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.AbsTypeTag[U]].toString)))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.WeakTypeTag[U]].toString)))), Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(V.toString))))), Literal(Constant(())))) } diff --git a/test/files/run/macro-expand-tparams-prefix-d1.check b/test/files/run/macro-expand-tparams-prefix-d1.check index 319edfbed0..2331e2549e 100644 --- a/test/files/run/macro-expand-tparams-prefix-d1.check +++ b/test/files/run/macro-expand-tparams-prefix-d1.check @@ -1,3 +1,3 @@ -AbsTypeTag[T]
-AbsTypeTag[U]
+WeakTypeTag[T]
+WeakTypeTag[U]
TypeTag[Boolean]
diff --git a/test/files/run/macro-expand-tparams-prefix-d1/Impls_1.scala b/test/files/run/macro-expand-tparams-prefix-d1/Impls_1.scala index ca515be627..afdd7d4f7a 100644 --- a/test/files/run/macro-expand-tparams-prefix-d1/Impls_1.scala +++ b/test/files/run/macro-expand-tparams-prefix-d1/Impls_1.scala @@ -2,11 +2,11 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T, U: c.AbsTypeTag, V](c: Ctx)(implicit T: c.AbsTypeTag[T], V: c.AbsTypeTag[V]): c.Expr[Unit] = { + def foo[T, U: c.WeakTypeTag, V](c: Ctx)(implicit T: c.WeakTypeTag[T], V: c.WeakTypeTag[V]): c.Expr[Unit] = { import c.universe._ c.Expr(Block(List( Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(T.toString)))), - Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.AbsTypeTag[U]].toString)))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.WeakTypeTag[U]].toString)))), Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(V.toString))))), Literal(Constant(())))) } diff --git a/test/files/run/macro-impl-default-params/Impls_Macros_1.scala b/test/files/run/macro-impl-default-params/Impls_Macros_1.scala index 06c58d96ab..db77b1923a 100644 --- a/test/files/run/macro-impl-default-params/Impls_Macros_1.scala +++ b/test/files/run/macro-impl-default-params/Impls_Macros_1.scala @@ -2,10 +2,10 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo_targs[T, U: c.AbsTypeTag](c: Ctx = null)(x: c.Expr[Int] = null) = { + def foo_targs[T, U: c.WeakTypeTag](c: Ctx = null)(x: c.Expr[Int] = null) = { import c.{prefix => prefix} import c.universe._ - val U = implicitly[c.AbsTypeTag[U]] + val U = implicitly[c.WeakTypeTag[U]] val body = Block( Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("invoking foo_targs...")))), Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant("type of prefix is: " + prefix.staticType)))), diff --git a/test/files/run/macro-invalidusage-partialapplication-with-tparams/Impls_Macros_1.scala b/test/files/run/macro-invalidusage-partialapplication-with-tparams/Impls_Macros_1.scala index a54b7f4b08..4583a726cf 100644 --- a/test/files/run/macro-invalidusage-partialapplication-with-tparams/Impls_Macros_1.scala +++ b/test/files/run/macro-invalidusage-partialapplication-with-tparams/Impls_Macros_1.scala @@ -1,7 +1,7 @@ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T: c.AbsTypeTag](c: Ctx)(x: c.Expr[T]) = { + def foo[T: c.WeakTypeTag](c: Ctx)(x: c.Expr[T]) = { import c.universe._ val body = Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(x.tree.toString)))) c.Expr[Unit](body) diff --git a/test/files/run/macro-reify-abstypetag-notypeparams/Test.scala b/test/files/run/macro-reify-abstypetag-notypeparams/Test.scala index 34f742b9fb..73c2d05921 100644 --- a/test/files/run/macro-reify-abstypetag-notypeparams/Test.scala +++ b/test/files/run/macro-reify-abstypetag-notypeparams/Test.scala @@ -1,6 +1,6 @@ import scala.reflect.runtime.universe._ object Test extends App { - println(implicitly[AbsTypeTag[Int]]) - println(implicitly[AbsTypeTag[List[Int]]]) + println(implicitly[WeakTypeTag[Int]]) + println(implicitly[WeakTypeTag[List[Int]]]) }
\ No newline at end of file diff --git a/test/files/run/macro-reify-abstypetag-typeparams-notags.check b/test/files/run/macro-reify-abstypetag-typeparams-notags.check index be62b59a69..6aeec96079 100644 --- a/test/files/run/macro-reify-abstypetag-typeparams-notags.check +++ b/test/files/run/macro-reify-abstypetag-typeparams-notags.check @@ -1,2 +1,2 @@ -AbsTypeTag[T]
-AbsTypeTag[List[T]]
+WeakTypeTag[T]
+WeakTypeTag[List[T]]
diff --git a/test/files/run/macro-reify-abstypetag-typeparams-notags/Test.scala b/test/files/run/macro-reify-abstypetag-typeparams-notags/Test.scala index 0b42cc07b5..4ba2231d9a 100644 --- a/test/files/run/macro-reify-abstypetag-typeparams-notags/Test.scala +++ b/test/files/run/macro-reify-abstypetag-typeparams-notags/Test.scala @@ -2,8 +2,8 @@ import scala.reflect.runtime.universe._ object Test extends App { def fooNoTypeTag[T] = { - println(implicitly[AbsTypeTag[T]]) - println(implicitly[AbsTypeTag[List[T]]]) + println(implicitly[WeakTypeTag[T]]) + println(implicitly[WeakTypeTag[List[T]]]) } fooNoTypeTag[Int] }
\ No newline at end of file diff --git a/test/files/run/macro-reify-abstypetag-typeparams-tags.check b/test/files/run/macro-reify-abstypetag-typeparams-tags.check index d6ca5a85ef..6e2646c5e0 100644 --- a/test/files/run/macro-reify-abstypetag-typeparams-tags.check +++ b/test/files/run/macro-reify-abstypetag-typeparams-tags.check @@ -1,2 +1,2 @@ TypeTag[Int]
-AbsTypeTag[List[Int]]
+WeakTypeTag[List[Int]]
diff --git a/test/files/run/macro-reify-abstypetag-typeparams-tags/Test.scala b/test/files/run/macro-reify-abstypetag-typeparams-tags/Test.scala index 82a7b7971d..70ca615e1f 100644 --- a/test/files/run/macro-reify-abstypetag-typeparams-tags/Test.scala +++ b/test/files/run/macro-reify-abstypetag-typeparams-tags/Test.scala @@ -1,9 +1,9 @@ import scala.reflect.runtime.universe._ object Test extends App { - def fooTypeTag[T: AbsTypeTag] = { - println(implicitly[AbsTypeTag[T]]) - println(implicitly[AbsTypeTag[List[T]]]) + def fooTypeTag[T: WeakTypeTag] = { + println(implicitly[WeakTypeTag[T]]) + println(implicitly[WeakTypeTag[List[T]]]) } fooTypeTag[Int] }
\ No newline at end of file diff --git a/test/files/run/macro-reify-abstypetag-usetypetag.check b/test/files/run/macro-reify-abstypetag-usetypetag.check index d6ca5a85ef..6e2646c5e0 100644 --- a/test/files/run/macro-reify-abstypetag-usetypetag.check +++ b/test/files/run/macro-reify-abstypetag-usetypetag.check @@ -1,2 +1,2 @@ TypeTag[Int]
-AbsTypeTag[List[Int]]
+WeakTypeTag[List[Int]]
diff --git a/test/files/run/macro-reify-abstypetag-usetypetag/Test.scala b/test/files/run/macro-reify-abstypetag-usetypetag/Test.scala index 3c62725c42..ecae4110a8 100644 --- a/test/files/run/macro-reify-abstypetag-usetypetag/Test.scala +++ b/test/files/run/macro-reify-abstypetag-usetypetag/Test.scala @@ -2,8 +2,8 @@ import scala.reflect.runtime.universe._ object Test extends App { def fooTypeTag[T: TypeTag] = { - println(implicitly[AbsTypeTag[T]]) - println(implicitly[AbsTypeTag[List[T]]]) + println(implicitly[WeakTypeTag[T]]) + println(implicitly[WeakTypeTag[List[T]]]) } fooTypeTag[Int] }
\ No newline at end of file diff --git a/test/files/run/macro-reify-freevars/Macros_1.scala b/test/files/run/macro-reify-freevars/Macros_1.scala index 57fdc32437..20f80c06d1 100644 --- a/test/files/run/macro-reify-freevars/Macros_1.scala +++ b/test/files/run/macro-reify-freevars/Macros_1.scala @@ -1,7 +1,7 @@ package scala.collection.slick object QueryableMacros{ - def map[T:c.AbsTypeTag, S:c.AbsTypeTag] + def map[T:c.WeakTypeTag, S:c.WeakTypeTag] (c: scala.reflect.macros.Context) (projection: c.Expr[T => S]) : c.Expr[scala.collection.slick.Queryable[S]] = { diff --git a/test/files/run/macro-reify-nested-a/Impls_Macros_1.scala b/test/files/run/macro-reify-nested-a/Impls_Macros_1.scala index 04714970dd..ae2def2d3e 100644 --- a/test/files/run/macro-reify-nested-a/Impls_Macros_1.scala +++ b/test/files/run/macro-reify-nested-a/Impls_Macros_1.scala @@ -21,9 +21,9 @@ case class Utils[C <: Context]( c:C ) { } } object QueryableMacros{ - def _helper[C <: Context,S:c.AbsTypeTag]( c:C )( name:String, projection:c.Expr[_] ) = { + def _helper[C <: Context,S:c.WeakTypeTag]( c:C )( name:String, projection:c.Expr[_] ) = { import c.universe._ - val element_type = implicitly[c.AbsTypeTag[S]].tpe + val element_type = implicitly[c.WeakTypeTag[S]].tpe val foo = c.Expr[ru.Expr[Queryable[S]]]( c.reifyTree( c.runtimeUniverse, EmptyTree, c.typeCheck( Utils[c.type](c).removeDoubleReify( @@ -32,7 +32,7 @@ object QueryableMacros{ ))) c.universe.reify{ Queryable.factory[S]( foo.splice )} } - def map[T:c.AbsTypeTag, S:c.AbsTypeTag] + def map[T:c.WeakTypeTag, S:c.WeakTypeTag] (c: scala.reflect.macros.Context) (projection: c.Expr[T => S]): c.Expr[Queryable[S]] = _helper[c.type,S]( c )( "_map", projection ) } diff --git a/test/files/run/macro-reify-nested-b/Impls_Macros_1.scala b/test/files/run/macro-reify-nested-b/Impls_Macros_1.scala index 04714970dd..ae2def2d3e 100644 --- a/test/files/run/macro-reify-nested-b/Impls_Macros_1.scala +++ b/test/files/run/macro-reify-nested-b/Impls_Macros_1.scala @@ -21,9 +21,9 @@ case class Utils[C <: Context]( c:C ) { } } object QueryableMacros{ - def _helper[C <: Context,S:c.AbsTypeTag]( c:C )( name:String, projection:c.Expr[_] ) = { + def _helper[C <: Context,S:c.WeakTypeTag]( c:C )( name:String, projection:c.Expr[_] ) = { import c.universe._ - val element_type = implicitly[c.AbsTypeTag[S]].tpe + val element_type = implicitly[c.WeakTypeTag[S]].tpe val foo = c.Expr[ru.Expr[Queryable[S]]]( c.reifyTree( c.runtimeUniverse, EmptyTree, c.typeCheck( Utils[c.type](c).removeDoubleReify( @@ -32,7 +32,7 @@ object QueryableMacros{ ))) c.universe.reify{ Queryable.factory[S]( foo.splice )} } - def map[T:c.AbsTypeTag, S:c.AbsTypeTag] + def map[T:c.WeakTypeTag, S:c.WeakTypeTag] (c: scala.reflect.macros.Context) (projection: c.Expr[T => S]): c.Expr[Queryable[S]] = _helper[c.type,S]( c )( "_map", projection ) } diff --git a/test/files/run/macro-reify-tagful-a/Macros_1.scala b/test/files/run/macro-reify-tagful-a/Macros_1.scala index 0eac74236f..f2512dcfaf 100644 --- a/test/files/run/macro-reify-tagful-a/Macros_1.scala +++ b/test/files/run/macro-reify-tagful-a/Macros_1.scala @@ -5,7 +5,7 @@ object Macros { def foo[T](s: T) = macro Impls.foo[T] object Impls { - def foo[T: c.AbsTypeTag](c: Ctx)(s: c.Expr[T]) = c.universe.reify { + def foo[T: c.WeakTypeTag](c: Ctx)(s: c.Expr[T]) = c.universe.reify { List(s.splice) } } diff --git a/test/files/run/macro-reify-tagless-a.check b/test/files/run/macro-reify-tagless-a.check index d69f641280..c2385ba008 100644 --- a/test/files/run/macro-reify-tagless-a.check +++ b/test/files/run/macro-reify-tagless-a.check @@ -1,3 +1,3 @@ reflective compilation has failed:
-Macro expansion contains free type variable T defined by foo in Impls_Macros_1.scala:7:13. Have you forgotten to use c.AbsTypeTag annotation for this type parameter? If you have troubles tracking free type variables, consider using -Xlog-free-types
+Macro expansion contains free type variable T defined by foo in Impls_Macros_1.scala:7:13. Have you forgotten to use c.WeakTypeTag annotation for this type parameter? If you have troubles tracking free type variables, consider using -Xlog-free-types
diff --git a/test/files/run/macro-typecheck-macrosdisabled/Impls_Macros_1.scala b/test/files/run/macro-typecheck-macrosdisabled/Impls_Macros_1.scala index b2f6f7d50e..f693ad78cc 100644 --- a/test/files/run/macro-typecheck-macrosdisabled/Impls_Macros_1.scala +++ b/test/files/run/macro-typecheck-macrosdisabled/Impls_Macros_1.scala @@ -18,7 +18,8 @@ object Macros { val rupkg = c.mirror.staticModule("scala.reflect.runtime.package") val rusym = build.selectTerm(rupkg, "universe") val NullaryMethodType(rutpe) = rusym.typeSignature - val ru = build.newFreeTerm("ru", rutpe, scala.reflect.runtime.universe) + val ru = build.newFreeTerm("ru", scala.reflect.runtime.universe) + build.setTypeSignature(ru, rutpe) val tree2 = Apply(Select(Ident(ru), newTermName("reify")), List(Literal(Constant(2)))) val ttree2 = c.typeCheck(tree2, withMacrosDisabled = true) diff --git a/test/files/run/macro-typecheck-macrosdisabled2/Impls_Macros_1.scala b/test/files/run/macro-typecheck-macrosdisabled2/Impls_Macros_1.scala index 948c047351..1dbf5a1a87 100644 --- a/test/files/run/macro-typecheck-macrosdisabled2/Impls_Macros_1.scala +++ b/test/files/run/macro-typecheck-macrosdisabled2/Impls_Macros_1.scala @@ -18,7 +18,8 @@ object Macros { val rupkg = c.mirror.staticModule("scala.reflect.runtime.package") val rusym = build.selectTerm(rupkg, "universe") val NullaryMethodType(rutpe) = rusym.typeSignature - val ru = build.newFreeTerm("ru", rutpe, scala.reflect.runtime.universe) + val ru = build.newFreeTerm("ru", scala.reflect.runtime.universe) + build.setTypeSignature(ru, rutpe) val tree2 = Apply(Select(Ident(ru), newTermName("reify")), List(Apply(Select(Ident(newTermName("scala")), newTermName("Array")), List(Literal(Constant(2)))))) val ttree2 = c.typeCheck(tree2, withMacrosDisabled = true) diff --git a/test/files/run/macro-undetparams-consfromsls/Impls_Macros_1.scala b/test/files/run/macro-undetparams-consfromsls/Impls_Macros_1.scala index 3d350a50fa..bcbd12817b 100644 --- a/test/files/run/macro-undetparams-consfromsls/Impls_Macros_1.scala +++ b/test/files/run/macro-undetparams-consfromsls/Impls_Macros_1.scala @@ -2,13 +2,13 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.Context object Macros { - def cons_impl[A: c.AbsTypeTag](c: Context)(x: c.Expr[A], xs: c.Expr[List[A]]): c.Expr[List[A]] = c.universe.reify { - println("A = " + c.literal(implicitly[c.AbsTypeTag[A]].toString).splice) + def cons_impl[A: c.WeakTypeTag](c: Context)(x: c.Expr[A], xs: c.Expr[List[A]]): c.Expr[List[A]] = c.universe.reify { + println("A = " + c.literal(implicitly[c.WeakTypeTag[A]].toString).splice) x.splice :: xs.splice } - def nil_impl[B: c.AbsTypeTag](c: Context): c.Expr[List[B]] = c.universe.reify { - println("B = " + c.literal(implicitly[c.AbsTypeTag[B]].toString).splice) + def nil_impl[B: c.WeakTypeTag](c: Context): c.Expr[List[B]] = c.universe.reify { + println("B = " + c.literal(implicitly[c.WeakTypeTag[B]].toString).splice) Nil } diff --git a/test/files/run/macro-undetparams-macroitself.check b/test/files/run/macro-undetparams-macroitself.check index 80c6b826ba..37226ec68d 100644 --- a/test/files/run/macro-undetparams-macroitself.check +++ b/test/files/run/macro-undetparams-macroitself.check @@ -1,2 +1,2 @@ TypeTag[Int]
-TypeTag[String]
+WeakTypeTag[String]
diff --git a/test/files/run/macro-undetparams-macroitself/Impls_Macros_1.scala b/test/files/run/macro-undetparams-macroitself/Impls_Macros_1.scala index 081894cf52..0244273b6f 100644 --- a/test/files/run/macro-undetparams-macroitself/Impls_Macros_1.scala +++ b/test/files/run/macro-undetparams-macroitself/Impls_Macros_1.scala @@ -2,7 +2,7 @@ import scala.reflect.runtime.universe._ import scala.reflect.macros.Context object Macros { - def impl[T: c.AbsTypeTag](c: Context)(foo: c.Expr[T]): c.Expr[Unit] = c.universe.reify { println(c.literal(implicitly[c.AbsTypeTag[T]].toString).splice) } + def impl[T: c.WeakTypeTag](c: Context)(foo: c.Expr[T]): c.Expr[Unit] = c.universe.reify { println(c.literal(implicitly[c.WeakTypeTag[T]].toString).splice) } def foo[T](foo: T) = macro impl[T] }
\ No newline at end of file diff --git a/test/files/run/pure-args-byname-noinline.check b/test/files/run/pure-args-byname-noinline.check new file mode 100644 index 0000000000..a39c61eb64 --- /dev/null +++ b/test/files/run/pure-args-byname-noinline.check @@ -0,0 +1,12 @@ +2 +2 +2 +2 +List(1) +List() + +1 +1 +1 +1 +1 diff --git a/test/files/run/pure-args-byname-noinline.scala b/test/files/run/pure-args-byname-noinline.scala new file mode 100644 index 0000000000..5c5c8a7eb6 --- /dev/null +++ b/test/files/run/pure-args-byname-noinline.scala @@ -0,0 +1,33 @@ +object Test { + //Were affected by SI-6306 + def f[A](a: =>A) = println(a.toString) + def f1[A <: AnyVal](a: =>A) = println(a.toString) + def f1a[A <: AnyVal](a: =>A) = println(a.##) + def f2[A <: AnyRef](a: =>A) = println(a.toString) + def f2a[A <: String](a: =>A) = println(a.toString) + //Works + def f3[A](a: =>Seq[A]) = println(a.toString) + + def foo() = println(2) + def client(f: () => Unit) = {f(); f()} + def attempt2() { + val bar: () => Unit = foo _ + //The code causing SI-6306 was supposed to optimize code like this: + client(() => bar ()) + //to: + client(bar) + } + def main(args: Array[String]) { + attempt2() + f3(Seq(1)) + f3(Seq()) + f("") + f((1).toString) + f((1).##) + f1((1).##) + f2((1).toString) + f2a((1).toString) + } +} + +// vim: set ts=8 sw=2 et: diff --git a/test/files/run/reify_newimpl_26.check b/test/files/run/reify_newimpl_26.check index c006cb7ffb..5996f3b322 100644 --- a/test/files/run/reify_newimpl_26.check +++ b/test/files/run/reify_newimpl_26.check @@ -5,16 +5,16 @@ scala> scala> def foo[T]{
import scala.reflect.runtime.universe._
- val tt = implicitly[AbsTypeTag[List[T]]]
+ val tt = implicitly[WeakTypeTag[List[T]]]
println(tt)
}
<console>:9: free type: Ident(newTypeName("T")) defined by foo in <console>:7:16
- val tt = implicitly[AbsTypeTag[List[T]]]
+ val tt = implicitly[WeakTypeTag[List[T]]]
^
foo: [T]=> Unit
scala> foo[Int]
-AbsTypeTag[scala.List[T]]
+WeakTypeTag[scala.List[T]]
scala>
diff --git a/test/files/run/reify_newimpl_26.scala b/test/files/run/reify_newimpl_26.scala index a12d8a2970..af74d60e8b 100644 --- a/test/files/run/reify_newimpl_26.scala +++ b/test/files/run/reify_newimpl_26.scala @@ -5,7 +5,7 @@ object Test extends ReplTest { def code = """ def foo[T]{ import scala.reflect.runtime.universe._ - val tt = implicitly[AbsTypeTag[List[T]]] + val tt = implicitly[WeakTypeTag[List[T]]] println(tt) } foo[Int] diff --git a/test/files/run/t1195-new.scala b/test/files/run/t1195-new.scala index 4edfb5073f..0f62b140c9 100644 --- a/test/files/run/t1195-new.scala +++ b/test/files/run/t1195-new.scala @@ -9,7 +9,7 @@ object Test { val g1 = g() val h1 = h() - def m[T: TypeTag](x: T) = println(typeOf[T] + ", underlying = " + typeOf[T].typeSymbol.typeSignature) + def m[T: WeakTypeTag](x: T) = println(weakTypeOf[T] + ", underlying = " + weakTypeOf[T].typeSymbol.typeSignature) def main(args: Array[String]): Unit = { m(f) diff --git a/test/files/run/t4813.scala b/test/files/run/t4813.scala new file mode 100644 index 0000000000..6d48ca8758 --- /dev/null +++ b/test/files/run/t4813.scala @@ -0,0 +1,37 @@ +import collection.mutable._ +import reflect._ + + +object Test extends App { + def runTest[T, U](col: T)(clone: T => U)(mod: T => Unit)(implicit ct: ClassTag[T]): Unit = { + val cloned = clone(col) + assert(cloned == col, s"cloned should be equal to original. $cloned != $col") + mod(col) + assert(cloned != col, s"cloned should not modify when original does: $ct") + } + + // Seqs + runTest(ArrayBuffer(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(ArraySeq(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(Buffer(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(DoubleLinkedList(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(IndexedSeq(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(LinearSeq(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(LinkedList(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(ListBuffer(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(MutableList(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(Queue(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + runTest(Stack(1,2,3))(_.clone) { buf => buf transform (_ + 1) } + + // Sets + runTest(BitSet(1,2,3))(_.clone) { buf => buf add 4 } + runTest(HashSet(1,2,3))(_.clone) { buf => buf add 4 } + runTest(Set(1,2,3))(_.clone) { buf => buf add 4 } + runTest(SortedSet(1,2,3))(_.clone) { buf => buf add 4 } + runTest(TreeSet(1,2,3))(_.clone) { buf => buf add 4 } + + // Maps + runTest(HashMap(1->1,2->2,3->3))(_.clone) { buf => buf put (4,4) } + runTest(WeakHashMap(1->1,2->2,3->3))(_.clone) { buf => buf put (4,4) } +} + diff --git a/test/files/run/t5881.check b/test/files/run/t5881.check index 477fb935a8..8e596e9323 100644 --- a/test/files/run/t5881.check +++ b/test/files/run/t5881.check @@ -1,2 +1,2 @@ -ClassTag[class scala.collection.immutable.List]
-ClassTag[class scala.collection.immutable.List]
+scala.collection.immutable.List
+scala.collection.immutable.List
diff --git a/test/files/run/t6114.scala b/test/files/run/t6114.scala new file mode 100644 index 0000000000..cb880ece00 --- /dev/null +++ b/test/files/run/t6114.scala @@ -0,0 +1,61 @@ +object Test extends App { + def testList = { + val list = new java.util.ArrayList[Int] + list.add(1) + list.add(2) + list.add(3) + import scala.collection.JavaConverters._ + val next = list.asScala ++ List(4,5,6) + assert(next != list.asScala) + + val raw = list.asScala + val cloned = raw.clone + list.add(1) + assert(raw != cloned) + } + def testSet = { + val set = new java.util.HashSet[Int] + set.add(1) + set.add(2) + set.add(3) + import scala.collection.JavaConverters._ + val next = set.asScala ++ Set(4,5,6) + assert(next != set.asScala) + + val raw = set.asScala + val cloned = raw.clone + set.add(4) + assert(raw != cloned) + } + def testMap = { + val map = new java.util.HashMap[Int,Int] + map.put(1,1) + map.put(2,2) + map.put(3,3) + import scala.collection.JavaConverters._ + val next = map.asScala ++ Map(4->4,5->5,6->6) + assert(next != map.asScala) + + val raw = map.asScala + val cloned = raw.clone + map.put(4,4) + assert(raw != cloned) + } + + def testCollection = { + val list: java.util.Collection[Int] = new java.util.ArrayDeque[Int] + list.add(1) + list.add(2) + list.add(3) + import scala.collection.JavaConverters._ + val next = list.asScala ++ List(4,5,6) + assert(next != list.asScala) + + // Note: Clone is hidden at this level, so no overriden cloning. + } + + testList + testSet + testMap + testCollection +} diff --git a/test/files/run/t6246.check b/test/files/run/t6246.check new file mode 100644 index 0000000000..9532185ead --- /dev/null +++ b/test/files/run/t6246.check @@ -0,0 +1,90 @@ +runtimeClass = byte, toString = Byte +true +true +true +false +true +false +false +false +false +runtimeClass = short, toString = Short +true +true +true +false +true +false +false +false +false +runtimeClass = char, toString = Char +true +true +true +false +true +false +false +false +false +runtimeClass = int, toString = Int +true +true +true +false +true +false +false +false +false +runtimeClass = long, toString = Long +true +true +true +false +true +false +false +false +false +runtimeClass = float, toString = Float +true +true +true +false +true +false +false +false +false +runtimeClass = double, toString = Double +true +true +true +false +true +false +false +false +false +runtimeClass = void, toString = Unit +true +true +true +false +true +false +false +false +false +runtimeClass = boolean, toString = Boolean +true +true +true +false +true +false +false +false +false
\ No newline at end of file diff --git a/test/files/run/t6246.scala b/test/files/run/t6246.scala new file mode 100644 index 0000000000..28765e1adf --- /dev/null +++ b/test/files/run/t6246.scala @@ -0,0 +1,26 @@ +import scala.reflect.{ClassTag, classTag} + +object Test extends App { + def testValueClass(tag: ClassTag[_]) { + println(s"runtimeClass = ${tag.runtimeClass}, toString = ${tag.toString}") + println(tag <:< tag) + println(tag <:< ClassTag.AnyVal) + println(tag <:< ClassTag.Any) + println(tag <:< ClassTag.Nothing) + println(ClassTag.Nothing <:< tag) + println(tag <:< ClassTag.Null) + println(ClassTag.Null <:< tag) + println(tag <:< ClassTag.Object) + println(ClassTag.Object <:< tag) + } + + testValueClass(ClassTag.Byte) + testValueClass(ClassTag.Short) + testValueClass(ClassTag.Char) + testValueClass(ClassTag.Int) + testValueClass(ClassTag.Long) + testValueClass(ClassTag.Float) + testValueClass(ClassTag.Double) + testValueClass(ClassTag.Unit) + testValueClass(ClassTag.Boolean) +}
\ No newline at end of file diff --git a/test/files/run/t6271.scala b/test/files/run/t6271.scala new file mode 100644 index 0000000000..8ebf7ad8b5 --- /dev/null +++ b/test/files/run/t6271.scala @@ -0,0 +1,32 @@ +object Test extends App { + def filterIssue = { + val viewed : Iterable[Iterable[Int]] = List(List(0).view).view + val filtered = viewed flatMap { x => List( x filter (_ > 0) ) } + filtered.iterator.toIterable.flatten + } + def takenIssue = { + val viewed : Iterable[Iterable[Int]] = List(List(0).view).view + val filtered = viewed flatMap { x => List( x take 0 ) } + filtered.iterator.toIterable.flatten + } + def droppedIssue = { + val viewed : Iterable[Iterable[Int]] = List(List(0).view).view + val filtered = viewed flatMap { x => List( x drop 1 ) } + filtered.iterator.toIterable.flatten + } + def flatMappedIssue = { + val viewed : Iterable[Iterable[Int]] = List(List(0).view).view + val filtered = viewed flatMap { x => List( x flatMap (_ => List()) ) } + filtered.iterator.toIterable.flatten + } + def slicedIssue = { + val viewed : Iterable[Iterable[Int]] = List(List(0).view).view + val filtered = viewed flatMap { x => List( x slice (2,3) ) } + filtered.iterator.toIterable.flatten + } + filterIssue + takenIssue + droppedIssue + flatMappedIssue + slicedIssue +} diff --git a/test/files/run/t6318_derived.check b/test/files/run/t6318_derived.check new file mode 100644 index 0000000000..ad43b6579b --- /dev/null +++ b/test/files/run/t6318_derived.check @@ -0,0 +1,3 @@ +Some(X)
+true
+Some(X)
diff --git a/test/files/run/t6318_derived.scala b/test/files/run/t6318_derived.scala new file mode 100644 index 0000000000..ccdc18daee --- /dev/null +++ b/test/files/run/t6318_derived.scala @@ -0,0 +1,15 @@ +import scala.reflect.{ClassTag, classTag} + +object Test extends App { + def test[T: ClassTag](x: T) { + println(classTag[T].runtimeClass.isAssignableFrom(x.getClass)) + println(classTag[T].unapply(x)) + } + + class X(val x: Int) extends AnyVal { override def toString = "X" } + val x = new X(1) + // the commented line crashes because of SI-6326 + //println(classTag[X].runtimeClass.isAssignableFrom(x.getClass)) + println(classTag[X].unapply(x)) + test(x) +}
\ No newline at end of file diff --git a/test/files/run/t6318_primitives.check b/test/files/run/t6318_primitives.check new file mode 100644 index 0000000000..bb474c3bdc --- /dev/null +++ b/test/files/run/t6318_primitives.check @@ -0,0 +1,36 @@ +true
+Some(1)
+false
+None
+true
+Some(1)
+false
+None
+true
+Some()
+false
+None
+true
+Some(1)
+false
+None
+true
+Some(1)
+false
+None
+true
+Some(1.0)
+false
+None
+true
+Some(1.0)
+false
+None
+true
+Some(true)
+false
+None
+true
+Some(())
+false
+None
diff --git a/test/files/run/t6318_primitives.scala b/test/files/run/t6318_primitives.scala new file mode 100644 index 0000000000..30f27120b3 --- /dev/null +++ b/test/files/run/t6318_primitives.scala @@ -0,0 +1,71 @@ +import scala.reflect.{ClassTag, classTag} + +object Test extends App { + def test[T: ClassTag](x: T) { + println(classTag[T].runtimeClass.isAssignableFrom(x.getClass)) + println(classTag[T].unapply(x)) + } + + { + val x = 1.toByte + println(ClassTag.Byte.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Byte.unapply(x)) + test(x) + } + + { + val x = 1.toShort + println(ClassTag.Short.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Short.unapply(x)) + test(x) + } + + { + val x = 1.toChar + println(ClassTag.Char.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Char.unapply(x)) + test(x) + } + + { + val x = 1.toInt + println(ClassTag.Int.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Int.unapply(x)) + test(x) + } + + { + val x = 1.toLong + println(ClassTag.Long.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Long.unapply(x)) + test(x) + } + + { + val x = 1.toFloat + println(ClassTag.Float.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Float.unapply(x)) + test(x) + } + + { + val x = 1.toDouble + println(ClassTag.Double.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Double.unapply(x)) + test(x) + } + + { + val x = true + println(ClassTag.Boolean.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Boolean.unapply(x)) + test(x) + } + + { + val x = () + println(ClassTag.Unit.runtimeClass.isAssignableFrom(x.getClass)) + println(ClassTag.Unit.unapply(x)) + test(x) + } +}
\ No newline at end of file diff --git a/test/files/run/t6323b.check b/test/files/run/t6323b.check new file mode 100644 index 0000000000..80b6176178 --- /dev/null +++ b/test/files/run/t6323b.check @@ -0,0 +1 @@ +cannot reflect value a, because it's a member of a weak type Test
diff --git a/test/files/run/t6323b.scala b/test/files/run/t6323b.scala new file mode 100644 index 0000000000..f530ac3ecc --- /dev/null +++ b/test/files/run/t6323b.scala @@ -0,0 +1,21 @@ +import scala.reflect.runtime.universe._ +import scala.reflect.runtime.{currentMirror => m} +import scala.reflect.runtime.{universe => u} + +object Test extends App { + locally { + try { + case class Test(a:String,b:List[Int]) + + val lookAtMe = m.reflect(Test("a",List(5))) + val value = u.weakTypeOf[Test] + val members = value.members + val member = value.members.filter(_.name.encoded == "a") + val aAccessor = lookAtMe.reflectMethod(member.head.asMethod) + val thisShouldBeA = aAccessor.apply() + println(thisShouldBeA) + } catch { + case ScalaReflectionException(msg) => println(msg) + } + } +}
\ No newline at end of file diff --git a/test/files/run/t6327.check b/test/files/run/t6327.check new file mode 100644 index 0000000000..f7bacac931 --- /dev/null +++ b/test/files/run/t6327.check @@ -0,0 +1,4 @@ +A +A +A +A diff --git a/test/files/run/t6327.scala b/test/files/run/t6327.scala new file mode 100644 index 0000000000..7683101f14 --- /dev/null +++ b/test/files/run/t6327.scala @@ -0,0 +1,22 @@ +import language._ + +object Test extends App { + + case class R[+T](s: String) { def x() = println(s) } + + // Implicits in contention; StringR is nested to avoid ambiguity + object R { implicit val StringR = R[String]("A") } + implicit val Default = R[Any]("B") + + class B() extends Dynamic { + def selectDynamic[T](f: String)(implicit r: R[T]): Unit = r.x() + } + + val b = new B() + + // These should all produce the same output, but they don't + b.selectDynamic[String]("baz") + b.baz[String] + val c = b.selectDynamic[String]("baz") + val d = b.baz[String] +} diff --git a/test/files/run/t6331.check b/test/files/run/t6331.check new file mode 100644 index 0000000000..9bf3f7823a --- /dev/null +++ b/test/files/run/t6331.check @@ -0,0 +1,23 @@ + () == () + true == true + true != false + false != true + 0.toByte == 0.toByte + 0.toByte != 1.toByte + 0.toShort == 0.toShort + 0.toShort != 1.toShort + 0 == 0 + 0 != 1 + 0L == 0L + 0L != 1L + 0.0f == 0.0f + 0.0f != -0.0f + -0.0f != 0.0f + NaNf == NaNf + 0.0d == 0.0d + 0.0d != -0.0d + -0.0d != 0.0d + NaNd == NaNd + 0 != 0.0d + 0 != 0L + 0.0d != 0.0f diff --git a/test/files/run/t6331.scala b/test/files/run/t6331.scala new file mode 100644 index 0000000000..4e43a7686e --- /dev/null +++ b/test/files/run/t6331.scala @@ -0,0 +1,71 @@ +import scala.tools.partest._ +import java.io._ +import scala.tools.nsc._ +import scala.tools.nsc.util.CommandLineParser +import scala.tools.nsc.{Global, Settings, CompilerCommand} +import scala.tools.nsc.reporters.ConsoleReporter + +// Test of Constant#equals, which must must account for floating point intricacies. +object Test extends DirectTest { + + override def code = "" + + override def show() { + val global = newCompiler() + import global._ + + def check(c1: Any, c2: Any): Unit = { + val const1 = Constant(c1) + val const2 = Constant(c2) + val equal = const1 == const2 + def show(a: Any) = "" + a + (a match { + case _: Byte => ".toByte" + case _: Short => ".toShort" + case _: Long => "L" + case _: Float => "f" + case _: Double => "d" + case _ => "" + }) + val op = if (equal) "==" else "!=" + println(f"${show(c1)}%12s $op ${show(c2)}") + + val hash1 = const1.hashCode + val hash2 = const2.hashCode + val hashesEqual = hash1 == hash2 + val hashBroken = equal && !hashesEqual + if (hashBroken) println(f"$hash1%12s != $hash2 // hash codes differ for equal objects!!") + } + + check((), ()) + + check(true, true) + check(true, false) + check(false, true) + + check(0.toByte, 0.toByte) + check(0.toByte, 1.toByte) + + check(0.toShort, 0.toShort) + check(0.toShort, 1.toShort) + + check(0, 0) + check(0, 1) + + check(0L, 0L) + check(0L, 1L) + + check(0f, 0f) + check(0f, -0f) + check(-0f, 0f) + check(Float.NaN, Float.NaN) + + check(0d, 0d) + check(0d, -0d) + check(-0d, 0d) + check(Double.NaN, Double.NaN) + + check(0, 0d) + check(0, 0L) + check(0d, 0f) + } +} diff --git a/test/files/run/t6331b.check b/test/files/run/t6331b.check new file mode 100644 index 0000000000..6ca09e3814 --- /dev/null +++ b/test/files/run/t6331b.check @@ -0,0 +1,30 @@ +trace> if (Test.this.t) + -0.0 +else + 0.0 +res: Double = -0.0 + +trace> if (Test.this.t) + 0.0 +else + -0.0 +res: Double = 0.0 + +trace> Test.this.intercept.apply[Any](if (scala.this.Predef.???) + -0.0 +else + 0.0) +res: Any = class scala.NotImplementedError + +trace> Test.this.intercept.apply[Any](if (scala.this.Predef.???) + 0.0 +else + 0.0) +res: Any = class scala.NotImplementedError + +trace> Test.this.intercept.apply[Any](if (scala.this.Predef.???) + () +else + ()) +res: Any = class scala.NotImplementedError + diff --git a/test/files/run/t6331b.scala b/test/files/run/t6331b.scala new file mode 100644 index 0000000000..f966abea51 --- /dev/null +++ b/test/files/run/t6331b.scala @@ -0,0 +1,20 @@ +import scala.tools.partest._ +import java.io._ +import scala.tools.nsc._ +import scala.tools.nsc.util.CommandLineParser +import scala.tools.nsc.{Global, Settings, CompilerCommand} +import scala.tools.nsc.reporters.ConsoleReporter + +import scala.tools.partest.trace +import scala.util.control.Exception._ + + +object Test extends App { + def intercept = allCatch.withApply(_.getClass) + val t: Boolean = true + trace(if (t) -0d else 0d) + trace(if (t) 0d else -0d) + trace(intercept(if (???) -0d else 0d)) + trace(intercept(if (???) 0d else 0d)) + trace(intercept(if (???) () else ())) +} diff --git a/test/files/run/t6333.scala b/test/files/run/t6333.scala new file mode 100644 index 0000000000..266d95ce69 --- /dev/null +++ b/test/files/run/t6333.scala @@ -0,0 +1,29 @@ +object Test extends App { + import util.Try + + val a = "apple" + def fail: String = throw new Exception("Fail!") + def argh: Try[String] = throw new Exception("Argh!") + + // No throw tests + def tryMethods(expr: => String): Unit = { + Try(expr) orElse argh + Try(expr).transform(_ => argh, _ => argh) + Try(expr).recoverWith { case e if (a == fail) => Try(a) } + Try(expr).recoverWith { case _ => argh } + Try(expr).getOrElse(a) + // TODO - Fail getOrElse? + Try(expr) orElse argh + Try(expr) orElse Try(a) + Try(expr) map (_ => fail) + Try(expr) map (_ => a) + Try(expr) flatMap (_ => argh) + Try(expr) flatMap (_ => Try(a)) + Try(expr) filter (_ => throw new Exception("O NOES")) + Try(expr) filter (_ => true) + Try(expr) recover { case _ => fail } + Try(expr).failed + } + tryMethods(a) + tryMethods(fail) +} diff --git a/test/files/run/toolbox_typecheck_macrosdisabled.check b/test/files/run/toolbox_typecheck_macrosdisabled.check index 9cf101c69d..4d253f31fc 100644 --- a/test/files/run/toolbox_typecheck_macrosdisabled.check +++ b/test/files/run/toolbox_typecheck_macrosdisabled.check @@ -1,32 +1,41 @@ -{
- val $u: ru.type = ru;
- val $m: $u.Mirror = ru.rootMirror;
- $u.Expr.apply[Int(2)]($m, {
- final class $treecreator1 extends TreeCreator {
- def <init>(): $treecreator1 = {
- $treecreator1.super.<init>();
- ()
- };
- def apply[U <: scala.reflect.base.Universe with Singleton]($m$untyped: scala.reflect.base.MirrorOf[U]): U#Tree = {
- val $u: U = $m$untyped.universe;
- val $m: $u.Mirror = $m$untyped.asInstanceOf[$u.Mirror];
- $u.Literal.apply($u.Constant.apply(2))
- }
- };
- new $treecreator1()
- })($u.TypeTag.apply[Int(2)]($m, {
- final class $typecreator2 extends TypeCreator {
- def <init>(): $typecreator2 = {
- $typecreator2.super.<init>();
- ()
- };
- def apply[U <: scala.reflect.base.Universe with Singleton]($m$untyped: scala.reflect.base.MirrorOf[U]): U#Type = {
- val $u: U = $m$untyped.universe;
- val $m: $u.Mirror = $m$untyped.asInstanceOf[$u.Mirror];
- $u.ConstantType.apply($u.Constant.apply(2))
- }
- };
- new $typecreator2()
- }))
-}
-ru.reify[Int](2)
+{ + val $u: ru.type = ru; + val $m: $u.Mirror = ru.runtimeMirror({ + final class $anon extends scala.AnyRef { + def <init>(): anonymous class $anon = { + $anon.super.<init>(); + () + }; + () + }; + new $anon() +}.getClass().getClassLoader()); + $u.Expr.apply[Int(2)]($m, { + final class $treecreator1 extends TreeCreator { + def <init>(): $treecreator1 = { + $treecreator1.super.<init>(); + () + }; + def apply[U <: scala.reflect.base.Universe with Singleton]($m$untyped: scala.reflect.base.MirrorOf[U]): U#Tree = { + val $u: U = $m$untyped.universe; + val $m: $u.Mirror = $m$untyped.asInstanceOf[$u.Mirror]; + $u.Literal.apply($u.Constant.apply(2)) + } + }; + new $treecreator1() + })($u.TypeTag.apply[Int(2)]($m, { + final class $typecreator2 extends TypeCreator { + def <init>(): $typecreator2 = { + $typecreator2.super.<init>(); + () + }; + def apply[U <: scala.reflect.base.Universe with Singleton]($m$untyped: scala.reflect.base.MirrorOf[U]): U#Type = { + val $u: U = $m$untyped.universe; + val $m: $u.Mirror = $m$untyped.asInstanceOf[$u.Mirror]; + $u.ConstantType.apply($u.Constant.apply(2)) + } + }; + new $typecreator2() + })) +} +ru.reify[Int](2) diff --git a/test/files/run/toolbox_typecheck_macrosdisabled.scala b/test/files/run/toolbox_typecheck_macrosdisabled.scala index bcbd637e02..51eb63f294 100644 --- a/test/files/run/toolbox_typecheck_macrosdisabled.scala +++ b/test/files/run/toolbox_typecheck_macrosdisabled.scala @@ -3,12 +3,17 @@ import scala.reflect.runtime.{universe => ru} import scala.reflect.runtime.{currentMirror => cm} import scala.tools.reflect.ToolBox +// Note: If you're looking at this test and you don't know why, you may +// have accidentally changed the way type tags reify. If so, validate +// that your changes are accurate and update the check file. + object Test extends App { val toolbox = cm.mkToolBox() val rupkg = cm.staticModule("scala.reflect.runtime.package") val rusym = build.selectTerm(rupkg, "universe") val NullaryMethodType(rutpe) = rusym.typeSignature - val ru = build.newFreeTerm("ru", rutpe, scala.reflect.runtime.universe) + val ru = build.newFreeTerm("ru", scala.reflect.runtime.universe) + build.setTypeSignature(ru, rutpe) val tree1 = Apply(Select(Ident(ru), newTermName("reify")), List(Literal(Constant(2)))) val ttree1 = toolbox.typeCheck(tree1, withMacrosDisabled = false) @@ -17,4 +22,4 @@ object Test extends App { val tree2 = Apply(Select(Ident(ru), newTermName("reify")), List(Literal(Constant(2)))) val ttree2 = toolbox.typeCheck(tree2, withMacrosDisabled = true) println(ttree2) -}
\ No newline at end of file +} diff --git a/test/files/run/toolbox_typecheck_macrosdisabled2.check b/test/files/run/toolbox_typecheck_macrosdisabled2.check index d344e33180..149c3def12 100644 --- a/test/files/run/toolbox_typecheck_macrosdisabled2.check +++ b/test/files/run/toolbox_typecheck_macrosdisabled2.check @@ -1,32 +1,41 @@ -{
- val $u: ru.type = ru;
- val $m: $u.Mirror = ru.rootMirror;
- $u.Expr.apply[Array[Int]]($m, {
- final class $treecreator1 extends TreeCreator {
- def <init>(): $treecreator1 = {
- $treecreator1.super.<init>();
- ()
- };
- def apply[U <: scala.reflect.base.Universe with Singleton]($m$untyped: scala.reflect.base.MirrorOf[U]): U#Tree = {
- val $u: U = $m$untyped.universe;
- val $m: $u.Mirror = $m$untyped.asInstanceOf[$u.Mirror];
- $u.Apply.apply($u.Select.apply($u.Select.apply($u.build.Ident($m.staticPackage("scala")), $u.newTermName("Array")), $u.newTermName("apply")), scala.collection.immutable.List.apply[$u.Literal]($u.Literal.apply($u.Constant.apply(2))))
- }
- };
- new $treecreator1()
- })($u.TypeTag.apply[Array[Int]]($m, {
- final class $typecreator2 extends TypeCreator {
- def <init>(): $typecreator2 = {
- $typecreator2.super.<init>();
- ()
- };
- def apply[U <: scala.reflect.base.Universe with Singleton]($m$untyped: scala.reflect.base.MirrorOf[U]): U#Type = {
- val $u: U = $m$untyped.universe;
- val $m: $u.Mirror = $m$untyped.asInstanceOf[$u.Mirror];
- $u.TypeRef.apply($u.ThisType.apply($m.staticPackage("scala").asModule.moduleClass), $m.staticClass("scala.Array"), scala.collection.immutable.List.apply[$u.Type]($m.staticClass("scala.Int").asType.toTypeConstructor))
- }
- };
- new $typecreator2()
- }))
-}
-ru.reify[Array[Int]](scala.Array.apply(2))
+{ + val $u: ru.type = ru; + val $m: $u.Mirror = ru.runtimeMirror({ + final class $anon extends scala.AnyRef { + def <init>(): anonymous class $anon = { + $anon.super.<init>(); + () + }; + () + }; + new $anon() +}.getClass().getClassLoader()); + $u.Expr.apply[Array[Int]]($m, { + final class $treecreator1 extends TreeCreator { + def <init>(): $treecreator1 = { + $treecreator1.super.<init>(); + () + }; + def apply[U <: scala.reflect.base.Universe with Singleton]($m$untyped: scala.reflect.base.MirrorOf[U]): U#Tree = { + val $u: U = $m$untyped.universe; + val $m: $u.Mirror = $m$untyped.asInstanceOf[$u.Mirror]; + $u.Apply.apply($u.Select.apply($u.Select.apply($u.build.Ident($m.staticPackage("scala")), $u.newTermName("Array")), $u.newTermName("apply")), scala.collection.immutable.List.apply[$u.Literal]($u.Literal.apply($u.Constant.apply(2)))) + } + }; + new $treecreator1() + })($u.TypeTag.apply[Array[Int]]($m, { + final class $typecreator2 extends TypeCreator { + def <init>(): $typecreator2 = { + $typecreator2.super.<init>(); + () + }; + def apply[U <: scala.reflect.base.Universe with Singleton]($m$untyped: scala.reflect.base.MirrorOf[U]): U#Type = { + val $u: U = $m$untyped.universe; + val $m: $u.Mirror = $m$untyped.asInstanceOf[$u.Mirror]; + $u.TypeRef.apply($u.ThisType.apply($m.staticPackage("scala").asModule.moduleClass), $m.staticClass("scala.Array"), scala.collection.immutable.List.apply[$u.Type]($m.staticClass("scala.Int").asType.toTypeConstructor)) + } + }; + new $typecreator2() + })) +} +ru.reify[Array[Int]](scala.Array.apply(2)) diff --git a/test/files/run/toolbox_typecheck_macrosdisabled2.scala b/test/files/run/toolbox_typecheck_macrosdisabled2.scala index 51493ffc1c..74fd09d9fd 100644 --- a/test/files/run/toolbox_typecheck_macrosdisabled2.scala +++ b/test/files/run/toolbox_typecheck_macrosdisabled2.scala @@ -3,12 +3,17 @@ import scala.reflect.runtime.{universe => ru} import scala.reflect.runtime.{currentMirror => cm} import scala.tools.reflect.ToolBox +// Note: If you're looking at this test and you don't know why, you may +// have accidentally changed the way type tags reify. If so, validate +// that your changes are accurate and update the check file. + object Test extends App { val toolbox = cm.mkToolBox() val rupkg = cm.staticModule("scala.reflect.runtime.package") val rusym = build.selectTerm(rupkg, "universe") val NullaryMethodType(rutpe) = rusym.typeSignature - val ru = build.newFreeTerm("ru", rutpe, scala.reflect.runtime.universe) + val ru = build.newFreeTerm("ru", scala.reflect.runtime.universe) + build.setTypeSignature(ru, rutpe) val tree1 = Apply(Select(Ident(ru), newTermName("reify")), List(Apply(Select(Ident(newTermName("scala")), newTermName("Array")), List(Literal(Constant(2)))))) val ttree1 = toolbox.typeCheck(tree1, withMacrosDisabled = false) diff --git a/test/files/run/valueclasses-classtag-basic.check b/test/files/run/valueclasses-classtag-basic.check index 0c13986b32..554c75e074 100644 --- a/test/files/run/valueclasses-classtag-basic.check +++ b/test/files/run/valueclasses-classtag-basic.check @@ -1 +1 @@ -ClassTag[class Foo]
+Foo
diff --git a/test/files/run/valueclasses-classtag-existential.check b/test/files/run/valueclasses-classtag-existential.check index 95e94e7aee..15ac02630f 100644 --- a/test/files/run/valueclasses-classtag-existential.check +++ b/test/files/run/valueclasses-classtag-existential.check @@ -1 +1 @@ -ClassTag[class java.lang.Object]
+Object
diff --git a/test/files/run/valueclasses-classtag-generic.check b/test/files/run/valueclasses-classtag-generic.check index 0c13986b32..554c75e074 100644 --- a/test/files/run/valueclasses-classtag-generic.check +++ b/test/files/run/valueclasses-classtag-generic.check @@ -1 +1 @@ -ClassTag[class Foo]
+Foo
diff --git a/test/files/run/virtpatmat_typetag.check b/test/files/run/virtpatmat_typetag.check index f9800b84d0..eaa9f3361f 100644 --- a/test/files/run/virtpatmat_typetag.check +++ b/test/files/run/virtpatmat_typetag.check @@ -1,10 +1,10 @@ -1 is not a ClassTag[int]; it's a class java.lang.Integer -1 is a ClassTag[class java.lang.Integer] -1 is not a ClassTag[class java.lang.String]; it's a class java.lang.Integer -true is a ClassTag[class java.lang.Object] -woele is a ClassTag[class java.lang.String] -1 is not a ClassTag[int]; it's a class java.lang.Integer -1 is a ClassTag[class java.lang.Integer] -1 is not a ClassTag[class java.lang.String]; it's a class java.lang.Integer -true is a ClassTag[class java.lang.Object] -woele is a ClassTag[class java.lang.String] +1 is not a Int; it's a class java.lang.Integer
+1 is a java.lang.Integer
+1 is not a java.lang.String; it's a class java.lang.Integer
+true is a Any
+woele is a java.lang.String
+1 is not a Int; it's a class java.lang.Integer
+1 is a java.lang.Integer
+1 is not a java.lang.String; it's a class java.lang.Integer
+true is a Any
+woele is a java.lang.String
diff --git a/test/files/pos/t2868.cmds b/test/flaky/pos/t2868.cmds index ed8124a9e0..ed8124a9e0 100644 --- a/test/files/pos/t2868.cmds +++ b/test/flaky/pos/t2868.cmds diff --git a/test/files/pos/t2868/Jann.java b/test/flaky/pos/t2868/Jann.java index f5b68de7b0..f5b68de7b0 100644 --- a/test/files/pos/t2868/Jann.java +++ b/test/flaky/pos/t2868/Jann.java diff --git a/test/files/pos/t2868/Nest.java b/test/flaky/pos/t2868/Nest.java index 53652291ad..53652291ad 100644 --- a/test/files/pos/t2868/Nest.java +++ b/test/flaky/pos/t2868/Nest.java diff --git a/test/files/pos/t2868/pick_1.scala b/test/flaky/pos/t2868/pick_1.scala index a211687432..a211687432 100644 --- a/test/files/pos/t2868/pick_1.scala +++ b/test/flaky/pos/t2868/pick_1.scala diff --git a/test/files/pos/t2868/t2868_src_2.scala b/test/flaky/pos/t2868/t2868_src_2.scala index f11ef0fae2..f11ef0fae2 100644 --- a/test/files/pos/t2868/t2868_src_2.scala +++ b/test/flaky/pos/t2868/t2868_src_2.scala diff --git a/test/pending/pos/t3943/Outer_1.java b/test/pending/pos/t3943/Outer_1.java new file mode 100644 index 0000000000..56c8cc7f85 --- /dev/null +++ b/test/pending/pos/t3943/Outer_1.java @@ -0,0 +1,14 @@ +public class Outer_1<E> { + abstract class Inner { + abstract public void foo(E e); + } +} + +class Child extends Outer_1<String> { + // the implicit prefix for Inner is Outer<E> instead of Outer<String> + public Inner getInner() { + return new Inner() { + public void foo(String e) { System.out.println("meh "+e); } + }; + } +} diff --git a/test/pending/pos/t3943/test_2.scala b/test/pending/pos/t3943/test_2.scala new file mode 100644 index 0000000000..a19db8b226 --- /dev/null +++ b/test/pending/pos/t3943/test_2.scala @@ -0,0 +1,8 @@ +object Test extends App { + val x: Child = new Child + x.getInner.foo("meh") +// ^ +// error: type mismatch; +// found : java.lang.String("meh") +// required: E +} diff --git a/test/pending/run/macro-expand-implicit-macro-defeats-type-inference/Impls_1.scala b/test/pending/run/macro-expand-implicit-macro-defeats-type-inference/Impls_1.scala index 26d4a45fee..15bcb581c8 100644 --- a/test/pending/run/macro-expand-implicit-macro-defeats-type-inference/Impls_1.scala +++ b/test/pending/run/macro-expand-implicit-macro-defeats-type-inference/Impls_1.scala @@ -1,7 +1,7 @@ import scala.reflect.macros.Context object Impls { - def foo[T: c.AbsTypeTag](c: Context): c.Expr[List[T]] = c.universe.reify { + def foo[T: c.WeakTypeTag](c: Context): c.Expr[List[T]] = c.universe.reify { println("openImplicits are: " + c.literal(c.openImplicits.toString).splice) println("enclosingImplicits are: " + c.literal(c.enclosingImplicits.toString).splice) println("typetag is: " + c.literal(c.tag[T].toString).splice) diff --git a/test/pending/run/macro-expand-tparams-prefix-e1/Impls_1.scala b/test/pending/run/macro-expand-tparams-prefix-e1/Impls_1.scala index d6ebb907e5..26de70cc12 100644 --- a/test/pending/run/macro-expand-tparams-prefix-e1/Impls_1.scala +++ b/test/pending/run/macro-expand-tparams-prefix-e1/Impls_1.scala @@ -1,11 +1,11 @@ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T, U: c.AbsTypeTag, V](c: Ctx)(implicit T: c.AbsTypeTag[T], V: c.AbsTypeTag[V]): c.Expr[Unit] = { + def foo[T, U: c.WeakTypeTag, V](c: Ctx)(implicit T: c.WeakTypeTag[T], V: c.WeakTypeTag[V]): c.Expr[Unit] = { import c.universe._ Block(List( Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(T.toString)))), - Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.AbsTypeTag[U]].toString)))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.WeakTypeTag[U]].toString)))), Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(V.toString))))), Literal(Constant(()))) } diff --git a/test/pending/run/macro-expand-tparams-prefix-f1/Impls_1.scala b/test/pending/run/macro-expand-tparams-prefix-f1/Impls_1.scala index d6ebb907e5..26de70cc12 100644 --- a/test/pending/run/macro-expand-tparams-prefix-f1/Impls_1.scala +++ b/test/pending/run/macro-expand-tparams-prefix-f1/Impls_1.scala @@ -1,11 +1,11 @@ import scala.reflect.macros.{Context => Ctx} object Impls { - def foo[T, U: c.AbsTypeTag, V](c: Ctx)(implicit T: c.AbsTypeTag[T], V: c.AbsTypeTag[V]): c.Expr[Unit] = { + def foo[T, U: c.WeakTypeTag, V](c: Ctx)(implicit T: c.WeakTypeTag[T], V: c.WeakTypeTag[V]): c.Expr[Unit] = { import c.universe._ Block(List( Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(T.toString)))), - Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.AbsTypeTag[U]].toString)))), + Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(implicitly[c.WeakTypeTag[U]].toString)))), Apply(Select(Ident(definitions.PredefModule), newTermName("println")), List(Literal(Constant(V.toString))))), Literal(Constant(()))) } diff --git a/test/pending/run/macro-reify-array/Macros_1.scala b/test/pending/run/macro-reify-array/Macros_1.scala index 99006c548a..f970be5caa 100644 --- a/test/pending/run/macro-reify-array/Macros_1.scala +++ b/test/pending/run/macro-reify-array/Macros_1.scala @@ -4,7 +4,7 @@ object Macros { def foo[T](s: String) = macro Impls.foo[T] object Impls { - def foo[T: c.AbsTypeTag](c: Ctx)(s: c.Expr[T]) = c.universe.reify { + def foo[T: c.WeakTypeTag](c: Ctx)(s: c.Expr[T]) = c.universe.reify { Array(s.splice) } } diff --git a/test/pending/run/macro-reify-tagful-b/Macros_1.scala b/test/pending/run/macro-reify-tagful-b/Macros_1.scala index a14187e8a7..59dbe7157b 100644 --- a/test/pending/run/macro-reify-tagful-b/Macros_1.scala +++ b/test/pending/run/macro-reify-tagful-b/Macros_1.scala @@ -4,7 +4,7 @@ object Macros { def foo[T](s: T) = macro Impls.foo[List[T]] object Impls { - def foo[T: c.AbsTypeTag](c: Ctx)(s: c.Expr[T]) = c.universe.reify { + def foo[T: c.WeakTypeTag](c: Ctx)(s: c.Expr[T]) = c.universe.reify { List(s.splice) } } diff --git a/tools/binary-repo-lib.sh b/tools/binary-repo-lib.sh index e9c758d181..7bc280b745 100755 --- a/tools/binary-repo-lib.sh +++ b/tools/binary-repo-lib.sh @@ -3,7 +3,8 @@ # Library to push and pull binary artifacts from a remote repository using CURL. -remote_urlbase="http://typesafe.artifactoryonline.com/typesafe/scala-sha-bootstrap/org/scala-lang/bootstrap" +remote_urlget="http://repo.typesafe.com/typesafe/scala-sha-bootstrap/org/scala-lang/bootstrap" +remote_urlpush="http://typesafe.artifactoryonline.com/typesafe/scala-sha-bootstrap/org/scala-lang/bootstrap" libraryJar="$(pwd)/lib/scala-library.jar" desired_ext=".desired.sha1" push_jar="$(pwd)/tools/push.jar" @@ -35,8 +36,8 @@ curlUpload() { local data=$2 local user=$3 local password=$4 - local url="${remote_urlbase}/${remote_location}" - java -jar $push_jar "$data" "$remote_location" "$user" "$password" + local url="${remote_urlpush}/${remote_location}" + java -jar $push_jar "$data" "$url" "$user" "$password" if (( $? != 0 )); then echo "Error uploading $data to $url" echo "$url" @@ -77,7 +78,7 @@ pushJarFile() { pushd $jar_dir >/dev/null local version=$(makeJarSha $jar_name) local remote_uri=${version}${jar#$basedir} - echo " Pushing to ${remote_urlbase}/${remote_uri} ..." + echo " Pushing to ${remote_urlpush}/${remote_uri} ..." echo " $curl" curlUpload $remote_uri $jar_name $user $pw echo " Making new sha1 file ...." @@ -136,7 +137,7 @@ pushJarFiles() { local user=$2 local password=$3 # TODO - ignore target/ and build/ - local jarFiles="$(find ${basedir}/lib -name "*.jar") $(find ${basedir}/test/files -name "*.jar")" + local jarFiles="$(find ${basedir}/lib -name "*.jar") $(find ${basedir}/test/files -name "*.jar") $(find ${basedir}/tools -name "*.jar")" local changed="no" for jar in $jarFiles; do local valid=$(isJarFileValid $jar) @@ -188,7 +189,9 @@ pullJarFileToCache() { rm -f "$cache_loc" fi if [[ ! -f "$cache_loc" ]]; then - curlDownload $cache_loc ${remote_urlbase}/${uri} + # Note: After we follow up with JFrog, we should check the more stable raw file server first + # before hitting the more flaky artifactory. + curlDownload $cache_loc ${remote_urlpush}/${uri} if test "$(checkJarSha "$cache_loc" "$sha")" != "OK"; then echo "Trouble downloading $uri. Please try pull-binary-libs again when your internet connection is stable." exit 2 diff --git a/tools/push.jar.desired.sha1 b/tools/push.jar.desired.sha1 index 53d566f525..63e6a47372 100644 --- a/tools/push.jar.desired.sha1 +++ b/tools/push.jar.desired.sha1 @@ -1 +1 @@ -de5d3eb21a732e4bce44c283ccfbd1ed94bfeaed ?push.jar +a1883f4304d5aa65e1f6ee6aad5900c62dd81079 ?push.jar |