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-rw-r--r--src/compiler/scala/tools/nsc/interpreter/CompletionOutput.scala10
-rw-r--r--src/compiler/scala/tools/nsc/interpreter/IMain.scala2
-rw-r--r--src/compiler/scala/tools/nsc/typechecker/Implicits.scala113
-rw-r--r--src/compiler/scala/tools/nsc/typechecker/Infer.scala12
-rw-r--r--src/compiler/scala/tools/nsc/typechecker/Typers.scala55
-rw-r--r--src/reflect/scala/reflect/internal/Types.scala60
-rw-r--r--test/files/continuations-neg/function2.check2
-rw-r--r--test/files/continuations-neg/t5314-type-error.check4
-rw-r--r--test/files/jvm/annotations.check12
-rw-r--r--test/files/jvm/annotations.scala6
-rw-r--r--test/files/neg/override-object-no.check4
-rw-r--r--test/files/neg/t2078.check2
-rw-r--r--test/files/neg/t2336.check2
-rw-r--r--test/files/neg/t3691.check2
-rw-r--r--test/files/neg/t4877.check6
-rw-r--r--test/files/neg/t5060.check4
-rw-r--r--test/files/neg/t5063.check2
-rw-r--r--test/files/neg/t6436.check4
-rw-r--r--test/files/neg/t6436b.check4
-rw-r--r--test/files/neg/t963.check2
-rw-r--r--test/files/pos/t6846.scala28
-rw-r--r--test/files/run/existentials-in-compiler.check104
-rw-r--r--test/files/run/existentials3-new.check4
-rw-r--r--test/files/run/existentials3-old.check4
-rw-r--r--test/files/run/macro-declared-in-trait.check2
-rw-r--r--test/files/run/reflection-equality.check2
-rw-r--r--test/files/run/repl-colon-type.check8
-rw-r--r--test/files/run/repl-parens.check2
-rw-r--r--test/files/run/t4172.check2
-rw-r--r--test/files/run/t5256a.check2
-rw-r--r--test/files/run/t5256b.check2
-rw-r--r--test/files/run/t5256d.check2
-rw-r--r--test/files/run/t5256e.check2
-rw-r--r--test/files/run/t5256f.check4
-rw-r--r--test/files/scalap/abstractClass/result.test2
-rw-r--r--test/files/scalap/abstractMethod/result.test2
-rw-r--r--test/files/scalap/cbnParam/result.test2
-rw-r--r--test/files/scalap/classPrivate/result.test4
-rw-r--r--test/files/scalap/classWithExistential/result.test2
-rw-r--r--test/files/scalap/classWithSelfAnnotation/result.test2
-rw-r--r--test/files/scalap/covariantParam/result.test2
-rw-r--r--test/files/scalap/defaultParameter/result.test4
-rw-r--r--test/files/scalap/implicitParam/result.test2
-rw-r--r--test/files/scalap/packageObject/result.test2
-rw-r--r--test/files/scalap/paramClauses/result.test2
-rw-r--r--test/files/scalap/paramNames/result.test2
-rw-r--r--test/files/scalap/sequenceParam/result.test2
-rw-r--r--test/files/scalap/simpleClass/result.test2
-rw-r--r--test/files/scalap/traitObject/result.test4
-rw-r--r--test/files/scalap/typeAnnotations/result.test2
-rw-r--r--test/files/scalap/valAndVar/result.test2
-rw-r--r--test/files/scalap/wildcardType/result.test2
52 files changed, 248 insertions, 270 deletions
diff --git a/src/compiler/scala/tools/nsc/interpreter/CompletionOutput.scala b/src/compiler/scala/tools/nsc/interpreter/CompletionOutput.scala
index 13880bb8af..d14b5c79e0 100644
--- a/src/compiler/scala/tools/nsc/interpreter/CompletionOutput.scala
+++ b/src/compiler/scala/tools/nsc/interpreter/CompletionOutput.scala
@@ -37,8 +37,8 @@ trait CompletionOutput {
val pkg = method.ownerChain find (_.isPackageClass) map (_.fullName) getOrElse ""
def relativize(str: String): String = quietString(str stripPrefix (pkg + "."))
- def relativize(tp: Type): String = relativize(tp.normalize.toString)
- def relativize(sym: Symbol): String = relativize(sym.info)
+ def relativize(tp: Type): String = relativize(tp.dealiasWiden.toString)
+ def relativize(sym: Symbol): String = relativize(sym.info)
def braceList(tparams: List[String]) = if (tparams.isEmpty) "" else (tparams map relativize).mkString("[", ", ", "]")
def parenList(params: List[Any]) = params.mkString("(", ", ", ")")
@@ -56,8 +56,8 @@ trait CompletionOutput {
}
)
- def tupleString(tp: Type) = parenList(tp.normalize.typeArgs map relativize)
- def functionString(tp: Type) = tp.normalize.typeArgs match {
+ def tupleString(tp: Type) = parenList(tp.dealiasWiden.typeArgs map relativize)
+ def functionString(tp: Type) = tp.dealiasWiden.typeArgs match {
case List(t, r) => t + " => " + r
case xs => parenList(xs.init) + " => " + xs.last
}
@@ -65,7 +65,7 @@ trait CompletionOutput {
def tparamsString(tparams: List[Symbol]) = braceList(tparams map (_.defString))
def paramsString(params: List[Symbol]) = {
def paramNameString(sym: Symbol) = if (sym.isSynthetic) "" else sym.nameString + ": "
- def paramString(sym: Symbol) = paramNameString(sym) + typeToString(sym.info.normalize)
+ def paramString(sym: Symbol) = paramNameString(sym) + typeToString(sym.info.dealiasWiden)
val isImplicit = params.nonEmpty && params.head.isImplicit
val strs = (params map paramString) match {
diff --git a/src/compiler/scala/tools/nsc/interpreter/IMain.scala b/src/compiler/scala/tools/nsc/interpreter/IMain.scala
index 2b97f81024..b46d28dec3 100644
--- a/src/compiler/scala/tools/nsc/interpreter/IMain.scala
+++ b/src/compiler/scala/tools/nsc/interpreter/IMain.scala
@@ -550,7 +550,7 @@ class IMain(initialSettings: Settings, protected val out: JPrintWriter) extends
// normalize non-public types so we don't see protected aliases like Self
def normalizeNonPublic(tp: Type) = tp match {
- case TypeRef(_, sym, _) if sym.isAliasType && !sym.isPublic => tp.normalize
+ case TypeRef(_, sym, _) if sym.isAliasType && !sym.isPublic => tp.dealias
case _ => tp
}
diff --git a/src/compiler/scala/tools/nsc/typechecker/Implicits.scala b/src/compiler/scala/tools/nsc/typechecker/Implicits.scala
index 70a736c91f..10003723fd 100644
--- a/src/compiler/scala/tools/nsc/typechecker/Implicits.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/Implicits.scala
@@ -443,8 +443,8 @@ trait Implicits {
val start = if (Statistics.canEnable) Statistics.startTimer(matchesPtNanos) else null
val result = normSubType(tp, pt) || isView && {
pt match {
- case TypeRef(_, Function1.Sym, args) =>
- matchesPtView(tp, args.head, args.tail.head, undet)
+ case TypeRef(_, Function1.Sym, arg1 :: arg2 :: Nil) =>
+ matchesPtView(tp, arg1, arg2, undet)
case _ =>
false
}
@@ -488,7 +488,7 @@ trait Implicits {
loop(restpe, pt)
else pt match {
case tr @ TypeRef(pre, sym, args) =>
- if (sym.isAliasType) loop(tp, pt.normalize)
+ if (sym.isAliasType) loop(tp, pt.dealias)
else if (sym.isAbstractType) loop(tp, pt.bounds.lo)
else {
val len = args.length - 1
@@ -532,18 +532,15 @@ trait Implicits {
* to a final true or false.
*/
private def isPlausiblySubType(tp1: Type, tp2: Type) = !isImpossibleSubType(tp1, tp2)
- private def isImpossibleSubType(tp1: Type, tp2: Type) = tp1.normalize.widen match {
- case tr1 @ TypeRef(_, sym1, _) =>
- // We can only rule out a subtype relationship if the left hand
- // side is a class, else we may not know enough.
- sym1.isClass && (tp2.normalize.widen match {
- case TypeRef(_, sym2, _) =>
- sym2.isClass && !(sym1 isWeakSubClass sym2)
- case RefinedType(parents, decls) =>
- decls.nonEmpty &&
- tr1.member(decls.head.name) == NoSymbol
- case _ => false
- })
+ private def isImpossibleSubType(tp1: Type, tp2: Type) = tp1.dealiasWiden match {
+ // We can only rule out a subtype relationship if the left hand
+ // side is a class, else we may not know enough.
+ case tr1 @ TypeRef(_, sym1, _) if sym1.isClass =>
+ tp2.dealiasWiden match {
+ case TypeRef(_, sym2, _) => sym2.isClass && !(sym1 isWeakSubClass sym2)
+ case RefinedType(parents, decls) => decls.nonEmpty && tr1.member(decls.head.name) == NoSymbol
+ case _ => false
+ }
case _ => false
}
@@ -1018,7 +1015,7 @@ trait Implicits {
args foreach (getParts(_))
}
} else if (sym.isAliasType) {
- getParts(tp.normalize)
+ getParts(tp.dealias)
} else if (sym.isAbstractType) {
getParts(tp.bounds.hi)
}
@@ -1049,88 +1046,6 @@ trait Implicits {
infoMap
}
- /** The parts of a type is the smallest set of types that contains
- * - the type itself
- * - the parts of its immediate components (prefix and argument)
- * - the parts of its base types
- * - for alias types and abstract types, we take instead the parts
- * - of their upper bounds.
- * @return For those parts that refer to classes with companion objects that
- * can be accessed with unambiguous stable prefixes, the implicits infos
- * which are members of these companion objects.
-
- private def companionImplicits(tp: Type): Infoss = {
- val partMap = new LinkedHashMap[Symbol, Type]
- val seen = mutable.HashSet[Type]() // cycle detection
-
- /** Enter all parts of `tp` into `parts` set.
- * This method is performance critical: about 2-4% of all type checking is spent here
- */
- def getParts(tp: Type) {
- if (seen(tp))
- return
- seen += tp
- tp match {
- case TypeRef(pre, sym, args) =>
- if (sym.isClass) {
- if (!((sym.name == tpnme.REFINE_CLASS_NAME) ||
- (sym.name startsWith tpnme.ANON_CLASS_NAME) ||
- (sym.name == tpnme.ROOT)))
- partMap get sym match {
- case Some(pre1) =>
- if (!(pre =:= pre1)) partMap(sym) = NoType // ambiguous prefix - ignore implicit members
- case None =>
- if (pre.isStable) partMap(sym) = pre
- val bts = tp.baseTypeSeq
- var i = 1
- while (i < bts.length) {
- getParts(bts(i))
- i += 1
- }
- getParts(pre)
- args foreach getParts
- }
- } else if (sym.isAliasType) {
- getParts(tp.normalize)
- } else if (sym.isAbstractType) {
- getParts(tp.bounds.hi)
- }
- case ThisType(_) =>
- getParts(tp.widen)
- case _: SingletonType =>
- getParts(tp.widen)
- case RefinedType(ps, _) =>
- for (p <- ps) getParts(p)
- case AnnotatedType(_, t, _) =>
- getParts(t)
- case ExistentialType(_, t) =>
- getParts(t)
- case PolyType(_, t) =>
- getParts(t)
- case _ =>
- }
- }
-
- getParts(tp)
-
- val buf = new ListBuffer[Infos]
- for ((clazz, pre) <- partMap) {
- if (pre != NoType) {
- val companion = clazz.companionModule
- companion.moduleClass match {
- case mc: ModuleClassSymbol =>
- buf += (mc.implicitMembers map (im =>
- new ImplicitInfo(im.name, singleType(pre, companion), im)))
- case _ =>
- }
- }
- }
- //println("companion implicits of "+tp+" = "+buf.toList) // DEBUG
- buf.toList
- }
-
-*/
-
/** The implicits made available by type `pt`.
* These are all implicits found in companion objects of classes C
* such that some part of `tp` has C as one of its superclasses.
@@ -1258,7 +1173,7 @@ trait Implicits {
implicit def wrapResult(tree: Tree): SearchResult =
if (tree == EmptyTree) SearchFailure else new SearchResult(tree, if (from.isEmpty) EmptyTreeTypeSubstituter else new TreeTypeSubstituter(from, to))
- val tp1 = tp0.normalize
+ val tp1 = tp0.dealias
tp1 match {
case ThisType(_) | SingleType(_, _) =>
// can't generate a reference to a value that's abstracted over by an existential
diff --git a/src/compiler/scala/tools/nsc/typechecker/Infer.scala b/src/compiler/scala/tools/nsc/typechecker/Infer.scala
index 7ae8923e43..0f52687c75 100644
--- a/src/compiler/scala/tools/nsc/typechecker/Infer.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/Infer.scala
@@ -44,7 +44,7 @@ trait Infer extends Checkable {
case formal => formal
} else formals
if (isVarArgTypes(formals1) && (removeRepeated || formals.length != nargs)) {
- val ft = formals1.last.normalize.typeArgs.head
+ val ft = formals1.last.dealiasWiden.typeArgs.head
formals1.init ::: (for (i <- List.range(formals1.length - 1, nargs)) yield ft)
} else formals1
}
@@ -1060,15 +1060,17 @@ trait Infer extends Checkable {
*/
def inferExprInstance(tree: Tree, tparams: List[Symbol], pt: Type = WildcardType, treeTp0: Type = null, keepNothings: Boolean = true, useWeaklyCompatible: Boolean = false): List[Symbol] = {
val treeTp = if(treeTp0 eq null) tree.tpe else treeTp0 // can't refer to tree in default for treeTp0
+ val (targs, tvars) = exprTypeArgs(tparams, treeTp, pt, useWeaklyCompatible)
printInference(
ptBlock("inferExprInstance",
"tree" -> tree,
"tree.tpe"-> tree.tpe,
"tparams" -> tparams,
- "pt" -> pt
+ "pt" -> pt,
+ "targs" -> targs,
+ "tvars" -> tvars
)
)
- val (targs, tvars) = exprTypeArgs(tparams, treeTp, pt, useWeaklyCompatible)
if (keepNothings || (targs eq null)) { //@M: adjustTypeArgs fails if targs==null, neg/t0226
substExpr(tree, tparams, targs, pt)
@@ -1422,9 +1424,9 @@ trait Infer extends Checkable {
}
object approximateAbstracts extends TypeMap {
- def apply(tp: Type): Type = tp.normalize match {
+ def apply(tp: Type): Type = tp.dealiasWiden match {
case TypeRef(pre, sym, _) if sym.isAbstractType => WildcardType
- case _ => mapOver(tp)
+ case _ => mapOver(tp)
}
}
diff --git a/src/compiler/scala/tools/nsc/typechecker/Typers.scala b/src/compiler/scala/tools/nsc/typechecker/Typers.scala
index 9d390476db..38221ad199 100644
--- a/src/compiler/scala/tools/nsc/typechecker/Typers.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/Typers.scala
@@ -224,7 +224,7 @@ trait Typers extends Modes with Adaptations with Tags {
case ExistentialType(tparams, tpe) =>
new SubstWildcardMap(tparams).apply(tp)
case TypeRef(_, sym, _) if sym.isAliasType =>
- val tp0 = tp.normalize
+ val tp0 = tp.dealias
val tp1 = dropExistential(tp0)
if (tp1 eq tp0) tp else tp1
case _ => tp
@@ -439,7 +439,7 @@ trait Typers extends Modes with Adaptations with Tags {
if (!hiddenSymbols.isEmpty && hiddenSymbols.head == sym &&
sym.isAliasType && sameLength(sym.typeParams, args)) {
hiddenSymbols = hiddenSymbols.tail
- t.normalize
+ t.dealias
} else t
case SingleType(_, sym) =>
checkNoEscape(sym)
@@ -1075,9 +1075,9 @@ trait Typers extends Modes with Adaptations with Tags {
adapt(tree setType restpe, mode, pt, original)
case TypeRef(_, ByNameParamClass, List(arg)) if ((mode & EXPRmode) != 0) => // (2)
adapt(tree setType arg, mode, pt, original)
- case tr @ TypeRef(_, sym, _) if sym.isAliasType && tr.normalize.isInstanceOf[ExistentialType] &&
+ case tr @ TypeRef(_, sym, _) if sym.isAliasType && tr.dealias.isInstanceOf[ExistentialType] &&
((mode & (EXPRmode | LHSmode)) == EXPRmode) =>
- adapt(tree setType tr.normalize.skolemizeExistential(context.owner, tree), mode, pt, original)
+ adapt(tree setType tr.dealias.skolemizeExistential(context.owner, tree), mode, pt, original)
case et @ ExistentialType(_, _) if ((mode & (EXPRmode | LHSmode)) == EXPRmode) =>
adapt(tree setType et.skolemizeExistential(context.owner, tree), mode, pt, original)
case PolyType(tparams, restpe) if inNoModes(mode, TAPPmode | PATTERNmode | HKmode) => // (3)
@@ -1147,7 +1147,7 @@ trait Typers extends Modes with Adaptations with Tags {
if (tree1.tpe <:< pt) adapt(tree1, mode, pt, original)
else {
if (inExprModeButNot(mode, FUNmode)) {
- pt.normalize match {
+ pt.dealias match {
case TypeRef(_, sym, _) =>
// note: was if (pt.typeSymbol == UnitClass) but this leads to a potentially
// infinite expansion if pt is constant type ()
@@ -1302,7 +1302,7 @@ trait Typers extends Modes with Adaptations with Tags {
def adaptToMember(qual: Tree, searchTemplate: Type, reportAmbiguous: Boolean = true, saveErrors: Boolean = true): Tree = {
if (isAdaptableWithView(qual)) {
- qual.tpe.widen.normalize match {
+ qual.tpe.dealiasWiden match {
case et: ExistentialType =>
qual setType et.skolemizeExistential(context.owner, qual) // open the existential
case _ =>
@@ -1840,7 +1840,7 @@ trait Typers extends Modes with Adaptations with Tags {
_.typedTemplate(cdef.impl, parentTypes(cdef.impl))
}
val impl2 = finishMethodSynthesis(impl1, clazz, context)
- if (clazz.isTrait && clazz.info.parents.nonEmpty && clazz.info.firstParent.normalize.typeSymbol == AnyClass)
+ if (clazz.isTrait && clazz.info.parents.nonEmpty && clazz.info.firstParent.typeSymbol == AnyClass)
checkEphemeral(clazz, impl2.body)
if ((clazz != ClassfileAnnotationClass) &&
(clazz isNonBottomSubClass ClassfileAnnotationClass))
@@ -3865,7 +3865,7 @@ trait Typers extends Modes with Adaptations with Tags {
val normalizeLocals = new TypeMap {
def apply(tp: Type): Type = tp match {
case TypeRef(pre, sym, args) =>
- if (sym.isAliasType && containsLocal(tp)) apply(tp.normalize)
+ if (sym.isAliasType && containsLocal(tp)) apply(tp.dealias)
else {
if (pre.isVolatile)
InferTypeWithVolatileTypeSelectionError(tree, pre)
@@ -4393,7 +4393,13 @@ trait Typers extends Modes with Adaptations with Tags {
def typedNew(tree: New) = {
val tpt = tree.tpt
val tpt1 = {
- val tpt0 = typedTypeConstructor(tpt)
+ // This way typedNew always returns a dealiased type. This used to happen by accident
+ // for instantiations without type arguments due to ad hoc code in typedTypeConstructor,
+ // and annotations depended on it (to the extent that they worked, which they did
+ // not when given a parameterized type alias which dealiased to an annotation.)
+ // typedTypeConstructor dealiases nothing now, but it makes sense for a "new" to always be
+ // given a dealiased type.
+ val tpt0 = typedTypeConstructor(tpt) modifyType (_.dealias)
if (checkStablePrefixClassType(tpt0))
if (tpt0.hasSymbol && !tpt0.symbol.typeParams.isEmpty) {
context.undetparams = cloneSymbols(tpt0.symbol.typeParams)
@@ -5733,29 +5739,18 @@ trait Typers extends Modes with Adaptations with Tags {
def typedTypeConstructor(tree: Tree, mode: Int): Tree = {
val result = typed(tree, forTypeMode(mode) | FUNmode, WildcardType)
- val restpe = result.tpe.normalize // normalize to get rid of type aliases for the following check (#1241)
- if (!phase.erasedTypes && restpe.isInstanceOf[TypeRef] && !restpe.prefix.isStable && !context.unit.isJava) {
- // The isJava exception if OK only because the only type constructors scalac gets
- // to see are those in the signatures. These do not need a unique object as a prefix.
- // The situation is different for new's and super's, but scalac does not look deep
- // enough to see those. See #3938
- ConstructorPrefixError(tree, restpe)
- } else {
- //@M fix for #2208
- // if there are no type arguments, normalization does not bypass any checks, so perform it to get rid of AnyRef
- if (result.tpe.typeArgs.isEmpty) {
- // minimal check: if(result.tpe.typeSymbolDirect eq AnyRefClass) {
- // must expand the fake AnyRef type alias, because bootstrapping (init in Definitions) is not
- // designed to deal with the cycles in the scala package (ScalaObject extends
- // AnyRef, but the AnyRef type alias is entered after the scala package is
- // loaded and completed, so that ScalaObject is unpickled while AnyRef is not
- // yet defined )
- // !!! TODO - revisit now that ScalaObject is gone.
- result setType(restpe)
- } else { // must not normalize: type application must be (bounds-)checked (during RefChecks), see #2208
+ // get rid of type aliases for the following check (#1241)
+ result.tpe.dealias match {
+ case restpe @ TypeRef(pre, _, _) if !phase.erasedTypes && !pre.isStable && !context.unit.isJava =>
+ // The isJava exception if OK only because the only type constructors scalac gets
+ // to see are those in the signatures. These do not need a unique object as a prefix.
+ // The situation is different for new's and super's, but scalac does not look deep
+ // enough to see those. See #3938
+ ConstructorPrefixError(tree, restpe)
+ case _ =>
+ // must not normalize: type application must be (bounds-)checked (during RefChecks), see #2208
// during uncurry (after refchecks), all types are normalized
result
- }
}
}
diff --git a/src/reflect/scala/reflect/internal/Types.scala b/src/reflect/scala/reflect/internal/Types.scala
index bfd18f6a43..c2637e6967 100644
--- a/src/reflect/scala/reflect/internal/Types.scala
+++ b/src/reflect/scala/reflect/internal/Types.scala
@@ -593,6 +593,26 @@ trait Types extends api.Types { self: SymbolTable =>
/** Expands type aliases. */
def dealias = this
+ /** Repeatedly apply widen and dealias until they have no effect.
+ * This compensates for the fact that type aliases can hide beneath
+ * singleton types and singleton types can hide inside type aliases.
+ */
+ def dealiasWiden: Type = (
+ if (this ne widen) widen.dealiasWiden
+ else if (this ne dealias) dealias.dealiasWiden
+ else this
+ )
+
+ /** All the types encountered in the course of dealiasing/widening,
+ * including each intermediate beta reduction step (whereas calling
+ * dealias applies as many as possible.)
+ */
+ def dealiasWidenChain: List[Type] = this :: (
+ if (this ne widen) widen.dealiasWidenChain
+ else if (this ne betaReduce) betaReduce.dealiasWidenChain
+ else Nil
+ )
+
def etaExpand: Type = this
/** Performs a single step of beta-reduction on types.
@@ -3173,23 +3193,20 @@ trait Types extends api.Types { self: SymbolTable =>
* Checks subtyping of higher-order type vars, and uses variances as defined in the
* type parameter we're trying to infer (the result will be sanity-checked later).
*/
- def unifyFull(tpe: Type) = {
- // The alias/widen variations are often no-ops.
- val tpes = (
- if (isLowerBound) List(tpe, tpe.widen, tpe.dealias, tpe.widen.dealias).distinct
- else List(tpe)
- )
- tpes exists { tp =>
- val lhs = if (isLowerBound) tp.typeArgs else typeArgs
- val rhs = if (isLowerBound) typeArgs else tp.typeArgs
-
- sameLength(lhs, rhs) && {
+ def unifyFull(tpe: Type): Boolean = {
+ def unifySpecific(tp: Type) = {
+ sameLength(typeArgs, tp.typeArgs) && {
+ val lhs = if (isLowerBound) tp.typeArgs else typeArgs
+ val rhs = if (isLowerBound) typeArgs else tp.typeArgs
// this is a higher-kinded type var with same arity as tp.
// side effect: adds the type constructor itself as a bound
addBound(tp.typeConstructor)
isSubArgs(lhs, rhs, params, AnyDepth)
}
}
+ // The type with which we can successfully unify can be hidden
+ // behind singleton types and type aliases.
+ tpe.dealiasWidenChain exists unifySpecific
}
// There's a <: test taking place right now, where tp is a concrete type and this is a typevar
@@ -3282,7 +3299,7 @@ trait Types extends api.Types { self: SymbolTable =>
if (constr.instValid) constr.inst
// get here when checking higher-order subtyping of the typevar by itself
// TODO: check whether this ever happens?
- else if (isHigherKinded) typeFun(params, applyArgs(params map (_.typeConstructor)))
+ else if (isHigherKinded) logResult("Normalizing HK $this")(typeFun(params, applyArgs(params map (_.typeConstructor))))
else super.normalize
)
override def typeSymbol = origin.typeSymbol
@@ -3754,7 +3771,7 @@ trait Types extends api.Types { self: SymbolTable =>
def existentialAbstraction(tparams: List[Symbol], tpe0: Type): Type =
if (tparams.isEmpty) tpe0
else {
- val tpe = deAlias(tpe0)
+ val tpe = normalizeAliases(tpe0)
val tpe1 = new ExistentialExtrapolation(tparams) extrapolate tpe
var tparams0 = tparams
var tparams1 = tparams0 filter tpe1.contains
@@ -3768,13 +3785,16 @@ trait Types extends api.Types { self: SymbolTable =>
newExistentialType(tparams1, tpe1)
}
- /** Remove any occurrences of type aliases from this type */
- object deAlias extends TypeMap {
- def apply(tp: Type): Type = mapOver {
- tp match {
- case TypeRef(pre, sym, args) if sym.isAliasType => tp.normalize
- case _ => tp
- }
+ /** Normalize any type aliases within this type (@see Type#normalize).
+ * Note that this depends very much on the call to "normalize", not "dealias",
+ * so it is no longer carries the too-stealthy name "deAlias".
+ */
+ object normalizeAliases extends TypeMap {
+ def apply(tp: Type): Type = tp match {
+ case TypeRef(_, sym, _) if sym.isAliasType =>
+ def msg = if (tp.isHigherKinded) s"Normalizing type alias function $tp" else s"Dealiasing type alias $tp"
+ mapOver(logResult(msg)(tp.normalize))
+ case _ => mapOver(tp)
}
}
diff --git a/test/files/continuations-neg/function2.check b/test/files/continuations-neg/function2.check
index 82b81c1444..4b1a6227bc 100644
--- a/test/files/continuations-neg/function2.check
+++ b/test/files/continuations-neg/function2.check
@@ -1,6 +1,6 @@
function2.scala:11: error: type mismatch;
found : () => Int
- required: () => Int @util.continuations.cps[Int]
+ required: () => Int @scala.util.continuations.cpsParam[Int,Int]
val g: () => Int @cps[Int] = f
^
one error found
diff --git a/test/files/continuations-neg/t5314-type-error.check b/test/files/continuations-neg/t5314-type-error.check
index 1f4e46a7f2..e66c9d833f 100644
--- a/test/files/continuations-neg/t5314-type-error.check
+++ b/test/files/continuations-neg/t5314-type-error.check
@@ -1,6 +1,6 @@
t5314-type-error.scala:7: error: type mismatch;
- found : Int @util.continuations.cps[Int]
- required: Int @util.continuations.cps[String]
+ found : Int @scala.util.continuations.cpsParam[Int,Int]
+ required: Int @scala.util.continuations.cpsParam[String,String]
def bar(x:Int): Int @cps[String] = return foo(x)
^
one error found
diff --git a/test/files/jvm/annotations.check b/test/files/jvm/annotations.check
index e307f8930d..a8dc5ecdd1 100644
--- a/test/files/jvm/annotations.check
+++ b/test/files/jvm/annotations.check
@@ -29,8 +29,20 @@ public Test4$Foo8(int)
private int Test4$Foo9.z
@test.SourceAnnotation(mails={bill.gates@bloodsuckers.com}, value=http://eppli.com)
+private int Test4$Foo9.z2
+
+@test.SourceAnnotation(mails={bill.gates@bloodsuckers.com}, value=http://eppli.com)
+private int Test4$Foo9.z3
+
+@test.SourceAnnotation(mails={bill.gates@bloodsuckers.com}, value=http://eppli.com)
public int Test4$Foo9.getZ()
+@test.SourceAnnotation(mails={bill.gates@bloodsuckers.com}, value=http://eppli.com)
+public int Test4$Foo9.getZ2()
+
+@test.SourceAnnotation(mails={bill.gates@bloodsuckers.com}, value=http://eppli.com)
+public int Test4$Foo9.getZ3()
+
@test.SourceAnnotation(mails={bill.gates@bloodsuckers.com}, value=http://apple.com)
public int Test4$Foo9.x()
diff --git a/test/files/jvm/annotations.scala b/test/files/jvm/annotations.scala
index 66ebde592b..77a45fae89 100644
--- a/test/files/jvm/annotations.scala
+++ b/test/files/jvm/annotations.scala
@@ -101,6 +101,12 @@ object Test4 {
type myAnn = SourceAnnotation @beanGetter @field
@BeanProperty @myAnn("http://eppli.com") var z = 0
+
+ type myAnn2[T] = SourceAnnotation @beanGetter @field
+ @BeanProperty @myAnn2[String]("http://eppli.com") var z2 = 0
+
+ type myAnn3[CC[_]] = SourceAnnotation @beanGetter @field
+ @BeanProperty @myAnn3[List]("http://eppli.com") var z3 = 0
}
class Foo10(@SourceAnnotation("on param 1") val name: String)
class Foo11(@(SourceAnnotation @scala.annotation.meta.field)("on param 2") val name: String)
diff --git a/test/files/neg/override-object-no.check b/test/files/neg/override-object-no.check
index 52bad2b937..9cfda80fc3 100644
--- a/test/files/neg/override-object-no.check
+++ b/test/files/neg/override-object-no.check
@@ -6,8 +6,8 @@ an overriding object must conform to the overridden object's class bound;
^
override-object-no.scala:21: error: overriding object Bar in trait Quux1 with object Bar in trait Quux2:
an overriding object must conform to the overridden object's class bound;
- found : Object{def g: String}
- required: Object{def g: Int}
+ found : AnyRef{def g: String}
+ required: AnyRef{def g: Int}
trait Quux2 extends Quux1 { override object Bar { def g = "abc" } } // err
^
override-object-no.scala:25: error: overriding object Bar in trait Quux3;
diff --git a/test/files/neg/t2078.check b/test/files/neg/t2078.check
index 3cdaa7d27a..00bb323a0b 100644
--- a/test/files/neg/t2078.check
+++ b/test/files/neg/t2078.check
@@ -1,4 +1,4 @@
-t2078.scala:2: error: contravariant type S occurs in covariant position in type => Object{val x: S} of value f
+t2078.scala:2: error: contravariant type S occurs in covariant position in type => AnyRef{val x: S} of value f
val f = new { val x = y }
^
one error found
diff --git a/test/files/neg/t2336.check b/test/files/neg/t2336.check
index 983717469c..28acd4d179 100644
--- a/test/files/neg/t2336.check
+++ b/test/files/neg/t2336.check
@@ -1,4 +1,4 @@
-t2336.scala:6: error: type Foo[Int] is not a stable prefix
+t2336.scala:6: error: Foo[Int] is not a legal prefix for a constructor
new Foo[Int]#Bar(0)
^
one error found
diff --git a/test/files/neg/t3691.check b/test/files/neg/t3691.check
index bdf6c268b2..6a7e13049a 100644
--- a/test/files/neg/t3691.check
+++ b/test/files/neg/t3691.check
@@ -9,7 +9,7 @@ t3691.scala:5: error: type mismatch;
val c = (new A[String]{}): { type A } // not ok
^
t3691.scala:7: error: type mismatch;
- found : Object{type A = String}
+ found : AnyRef{type A = String}
required: AnyRef{type A[X]}
val x = (new { type A = String }): { type A[X] } // not ok
^
diff --git a/test/files/neg/t4877.check b/test/files/neg/t4877.check
index a4b1e6a50d..5a2413ca8b 100644
--- a/test/files/neg/t4877.check
+++ b/test/files/neg/t4877.check
@@ -1,10 +1,10 @@
t4877.scala:4: error: type mismatch;
- found : Object{def bar: Int}
+ found : AnyRef{def bar: Int}
required: AnyRef{def bar: String}
def foo: AnyRef { def bar: String } = new AnyRef { def bar = 42 }
^
t4877.scala:6: error: type mismatch;
- found : Object{def bar(x: Int): String}
+ found : AnyRef{def bar(x: Int): String}
required: AnyRef{def bar(x: Int): Int}
def foo3: AnyRef { def bar(x: Int): Int } = new AnyRef { def bar(x: Int) = "abc" }
^
@@ -14,7 +14,7 @@ t4877.scala:7: error: type mismatch;
def foo4: C { def bar(x: Int): Int ; def quux(x: Int): Int } = new C { def bar(x: Int) = 5 }
^
t4877.scala:17: error: type mismatch;
- found : Object{type Mom = String; def bar(x: Int): Int; def bippy(): List[Int]}
+ found : AnyRef{type Mom = String; def bar(x: Int): Int; def bippy(): List[Int]}
required: B.this.Bippy
(which expands to) AnyRef{type Mom; def bar(x: Int): this.Mom; def bippy(): List[this.Mom]}
val x: Bippy = new AnyRef {
diff --git a/test/files/neg/t5060.check b/test/files/neg/t5060.check
index e71f30ccdb..09b2d9a4b1 100644
--- a/test/files/neg/t5060.check
+++ b/test/files/neg/t5060.check
@@ -1,7 +1,7 @@
-t5060.scala:2: error: covariant type T occurs in contravariant position in type => Object{def contains(x: T): Unit} of value foo0
+t5060.scala:2: error: covariant type T occurs in contravariant position in type => AnyRef{def contains(x: T): Unit} of value foo0
val foo0 = {
^
-t5060.scala:6: error: covariant type T occurs in contravariant position in type => Object{def contains(x: T): Unit} of method foo1
+t5060.scala:6: error: covariant type T occurs in contravariant position in type => AnyRef{def contains(x: T): Unit} of method foo1
def foo1 = {
^
two errors found
diff --git a/test/files/neg/t5063.check b/test/files/neg/t5063.check
index 84690d0a1d..c6e553c1b5 100644
--- a/test/files/neg/t5063.check
+++ b/test/files/neg/t5063.check
@@ -1,4 +1,4 @@
-t5063.scala:2: error: value + is not a member of Object
+t5063.scala:2: error: value + is not a member of AnyRef
super.+("")
^
one error found
diff --git a/test/files/neg/t6436.check b/test/files/neg/t6436.check
index ecb28f9100..5cee6fb558 100644
--- a/test/files/neg/t6436.check
+++ b/test/files/neg/t6436.check
@@ -2,8 +2,8 @@ t6436.scala:8: error: type mismatch;
found : StringContext
required: ?{def q: ?}
Note that implicit conversions are not applicable because they are ambiguous:
- both method foo1 in object quasiquotes of type (ctx: StringContext)Object{def q: Nothing}
- and method foo2 in object quasiquotes of type (ctx: StringContext)Object{def q: Nothing}
+ both method foo1 in object quasiquotes of type (ctx: StringContext)AnyRef{def q: Nothing}
+ and method foo2 in object quasiquotes of type (ctx: StringContext)AnyRef{def q: Nothing}
are possible conversion functions from StringContext to ?{def q: ?}
println(q"a")
^
diff --git a/test/files/neg/t6436b.check b/test/files/neg/t6436b.check
index b3c2d73739..21ab972b79 100644
--- a/test/files/neg/t6436b.check
+++ b/test/files/neg/t6436b.check
@@ -2,8 +2,8 @@ t6436b.scala:8: error: type mismatch;
found : StringContext
required: ?{def q: ?}
Note that implicit conversions are not applicable because they are ambiguous:
- both method foo1 in object quasiquotes of type (ctx: StringContext)Object{def q: Nothing}
- and method foo2 in object quasiquotes of type (ctx: StringContext)Object{def q: Nothing}
+ both method foo1 in object quasiquotes of type (ctx: StringContext)AnyRef{def q: Nothing}
+ and method foo2 in object quasiquotes of type (ctx: StringContext)AnyRef{def q: Nothing}
are possible conversion functions from StringContext to ?{def q: ?}
println(StringContext("a").q())
^
diff --git a/test/files/neg/t963.check b/test/files/neg/t963.check
index 1f2d0687b3..4dc202c7bd 100644
--- a/test/files/neg/t963.check
+++ b/test/files/neg/t963.check
@@ -5,7 +5,7 @@ t963.scala:17: error: stable identifier required, but Test.this.y4.x found.
val w4 : y4.x.type = y4.x
^
t963.scala:10: error: type mismatch;
- found : Object{def x: Integer}
+ found : AnyRef{def x: Integer}
required: AnyRef{val x: Integer}
val y2 : { val x : java.lang.Integer } = new { def x = new java.lang.Integer(r.nextInt) }
^
diff --git a/test/files/pos/t6846.scala b/test/files/pos/t6846.scala
new file mode 100644
index 0000000000..009566493f
--- /dev/null
+++ b/test/files/pos/t6846.scala
@@ -0,0 +1,28 @@
+object Test {
+ class Arb[_]
+ implicit def foo[M[_], A]: Arb[M[A]] = null
+ foo: Arb[List[Int]]
+ type ListInt = List[Int]
+ foo: Arb[ListInt]
+}
+
+object Test2 {
+ import scala.collection.immutable.List
+
+ class Carb[_]
+ implicit def narrow[N, M[_], A](x: Carb[M[A]])(implicit ev: N <:< M[A]): Carb[N] = null
+ implicit def bar[M[_], A]: Carb[M[A]] = null
+
+ type ListInt = List[Int]
+
+ val x: List[Int] = List(1)
+ val y: ListInt = List(1)
+
+ type ListSingletonX = x.type
+ type ListSingletonY = y.type
+
+ bar: Carb[List[Int]]
+ bar: Carb[ListInt]
+ bar: Carb[ListSingletonX]
+ bar: Carb[ListSingletonY]
+}
diff --git a/test/files/run/existentials-in-compiler.check b/test/files/run/existentials-in-compiler.check
index 4df4b0ca96..0d7a9298b4 100644
--- a/test/files/run/existentials-in-compiler.check
+++ b/test/files/run/existentials-in-compiler.check
@@ -1,156 +1,156 @@
-abstract trait Bippy[A <: AnyRef, B] extends Object
+abstract trait Bippy[A <: AnyRef, B] extends AnyRef
extest.Bippy[_ <: AnyRef, _]
-abstract trait BippyBud[A <: AnyRef, B, C <: List[A]] extends Object
+abstract trait BippyBud[A <: AnyRef, B, C <: List[A]] extends AnyRef
extest.BippyBud[A,B,C] forSome { A <: AnyRef; B; C <: List[A] }
-abstract trait BippyLike[A <: AnyRef, B <: List[A], This <: extest.BippyLike[A,B,This] with extest.Bippy[A,B]] extends Object
+abstract trait BippyLike[A <: AnyRef, B <: List[A], This <: extest.BippyLike[A,B,This] with extest.Bippy[A,B]] extends AnyRef
extest.BippyLike[A,B,This] forSome { A <: AnyRef; B <: List[A]; This <: extest.BippyLike[A,B,This] with extest.Bippy[A,B] }
-abstract trait Contra[-A >: AnyRef, -B] extends Object
+abstract trait Contra[-A >: AnyRef, -B] extends AnyRef
extest.Contra[_ >: AnyRef, _]
-abstract trait ContraLike[-A >: AnyRef, -B >: List[A]] extends Object
+abstract trait ContraLike[-A >: AnyRef, -B >: List[A]] extends AnyRef
extest.ContraLike[A,B] forSome { -A >: AnyRef; -B >: List[A] }
-abstract trait Cov01[+A <: AnyRef, +B] extends Object
+abstract trait Cov01[+A <: AnyRef, +B] extends AnyRef
extest.Cov01[_ <: AnyRef, _]
-abstract trait Cov02[+A <: AnyRef, B] extends Object
+abstract trait Cov02[+A <: AnyRef, B] extends AnyRef
extest.Cov02[_ <: AnyRef, _]
-abstract trait Cov03[+A <: AnyRef, -B] extends Object
+abstract trait Cov03[+A <: AnyRef, -B] extends AnyRef
extest.Cov03[_ <: AnyRef, _]
-abstract trait Cov04[A <: AnyRef, +B] extends Object
+abstract trait Cov04[A <: AnyRef, +B] extends AnyRef
extest.Cov04[_ <: AnyRef, _]
-abstract trait Cov05[A <: AnyRef, B] extends Object
+abstract trait Cov05[A <: AnyRef, B] extends AnyRef
extest.Cov05[_ <: AnyRef, _]
-abstract trait Cov06[A <: AnyRef, -B] extends Object
+abstract trait Cov06[A <: AnyRef, -B] extends AnyRef
extest.Cov06[_ <: AnyRef, _]
-abstract trait Cov07[-A <: AnyRef, +B] extends Object
+abstract trait Cov07[-A <: AnyRef, +B] extends AnyRef
extest.Cov07[_ <: AnyRef, _]
-abstract trait Cov08[-A <: AnyRef, B] extends Object
+abstract trait Cov08[-A <: AnyRef, B] extends AnyRef
extest.Cov08[_ <: AnyRef, _]
-abstract trait Cov09[-A <: AnyRef, -B] extends Object
+abstract trait Cov09[-A <: AnyRef, -B] extends AnyRef
extest.Cov09[_ <: AnyRef, _]
-abstract trait Cov11[+A <: AnyRef, +B <: List[_]] extends Object
+abstract trait Cov11[+A <: AnyRef, +B <: List[_]] extends AnyRef
extest.Cov11[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov12[+A <: AnyRef, B <: List[_]] extends Object
+abstract trait Cov12[+A <: AnyRef, B <: List[_]] extends AnyRef
extest.Cov12[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov13[+A <: AnyRef, -B <: List[_]] extends Object
+abstract trait Cov13[+A <: AnyRef, -B <: List[_]] extends AnyRef
extest.Cov13[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov14[A <: AnyRef, +B <: List[_]] extends Object
+abstract trait Cov14[A <: AnyRef, +B <: List[_]] extends AnyRef
extest.Cov14[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov15[A <: AnyRef, B <: List[_]] extends Object
+abstract trait Cov15[A <: AnyRef, B <: List[_]] extends AnyRef
extest.Cov15[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov16[A <: AnyRef, -B <: List[_]] extends Object
+abstract trait Cov16[A <: AnyRef, -B <: List[_]] extends AnyRef
extest.Cov16[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov17[-A <: AnyRef, +B <: List[_]] extends Object
+abstract trait Cov17[-A <: AnyRef, +B <: List[_]] extends AnyRef
extest.Cov17[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov18[-A <: AnyRef, B <: List[_]] extends Object
+abstract trait Cov18[-A <: AnyRef, B <: List[_]] extends AnyRef
extest.Cov18[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov19[-A <: AnyRef, -B <: List[_]] extends Object
+abstract trait Cov19[-A <: AnyRef, -B <: List[_]] extends AnyRef
extest.Cov19[_ <: AnyRef, _ <: List[_]]
-abstract trait Cov21[+A, +B] extends Object
+abstract trait Cov21[+A, +B] extends AnyRef
extest.Cov21[_, _]
-abstract trait Cov22[+A, B] extends Object
+abstract trait Cov22[+A, B] extends AnyRef
extest.Cov22[_, _]
-abstract trait Cov23[+A, -B] extends Object
+abstract trait Cov23[+A, -B] extends AnyRef
extest.Cov23[_, _]
-abstract trait Cov24[A, +B] extends Object
+abstract trait Cov24[A, +B] extends AnyRef
extest.Cov24[_, _]
-abstract trait Cov25[A, B] extends Object
+abstract trait Cov25[A, B] extends AnyRef
extest.Cov25[_, _]
-abstract trait Cov26[A, -B] extends Object
+abstract trait Cov26[A, -B] extends AnyRef
extest.Cov26[_, _]
-abstract trait Cov27[-A, +B] extends Object
+abstract trait Cov27[-A, +B] extends AnyRef
extest.Cov27[_, _]
-abstract trait Cov28[-A, B] extends Object
+abstract trait Cov28[-A, B] extends AnyRef
extest.Cov28[_, _]
-abstract trait Cov29[-A, -B] extends Object
+abstract trait Cov29[-A, -B] extends AnyRef
extest.Cov29[_, _]
-abstract trait Cov31[+A, +B, C <: (A, B)] extends Object
+abstract trait Cov31[+A, +B, C <: (A, B)] extends AnyRef
extest.Cov31[A,B,C] forSome { +A; +B; C <: (A, B) }
-abstract trait Cov32[+A, B, C <: (A, B)] extends Object
+abstract trait Cov32[+A, B, C <: (A, B)] extends AnyRef
extest.Cov32[A,B,C] forSome { +A; B; C <: (A, B) }
-abstract trait Cov33[+A, -B, C <: Tuple2[A, _]] extends Object
+abstract trait Cov33[+A, -B, C <: Tuple2[A, _]] extends AnyRef
extest.Cov33[A,B,C] forSome { +A; -B; C <: Tuple2[A, _] }
-abstract trait Cov34[A, +B, C <: (A, B)] extends Object
+abstract trait Cov34[A, +B, C <: (A, B)] extends AnyRef
extest.Cov34[A,B,C] forSome { A; +B; C <: (A, B) }
-abstract trait Cov35[A, B, C <: (A, B)] extends Object
+abstract trait Cov35[A, B, C <: (A, B)] extends AnyRef
extest.Cov35[A,B,C] forSome { A; B; C <: (A, B) }
-abstract trait Cov36[A, -B, C <: Tuple2[A, _]] extends Object
+abstract trait Cov36[A, -B, C <: Tuple2[A, _]] extends AnyRef
extest.Cov36[A,B,C] forSome { A; -B; C <: Tuple2[A, _] }
-abstract trait Cov37[-A, +B, C <: Tuple2[_, B]] extends Object
+abstract trait Cov37[-A, +B, C <: Tuple2[_, B]] extends AnyRef
extest.Cov37[A,B,C] forSome { -A; +B; C <: Tuple2[_, B] }
-abstract trait Cov38[-A, B, C <: Tuple2[_, B]] extends Object
+abstract trait Cov38[-A, B, C <: Tuple2[_, B]] extends AnyRef
extest.Cov38[A,B,C] forSome { -A; B; C <: Tuple2[_, B] }
-abstract trait Cov39[-A, -B, C <: Tuple2[_, _]] extends Object
+abstract trait Cov39[-A, -B, C <: Tuple2[_, _]] extends AnyRef
extest.Cov39[_, _, _ <: Tuple2[_, _]]
-abstract trait Cov41[+A >: Null, +B] extends Object
+abstract trait Cov41[+A >: Null, +B] extends AnyRef
extest.Cov41[_ >: Null, _]
-abstract trait Cov42[+A >: Null, B] extends Object
+abstract trait Cov42[+A >: Null, B] extends AnyRef
extest.Cov42[_ >: Null, _]
-abstract trait Cov43[+A >: Null, -B] extends Object
+abstract trait Cov43[+A >: Null, -B] extends AnyRef
extest.Cov43[_ >: Null, _]
-abstract trait Cov44[A >: Null, +B] extends Object
+abstract trait Cov44[A >: Null, +B] extends AnyRef
extest.Cov44[_ >: Null, _]
-abstract trait Cov45[A >: Null, B] extends Object
+abstract trait Cov45[A >: Null, B] extends AnyRef
extest.Cov45[_ >: Null, _]
-abstract trait Cov46[A >: Null, -B] extends Object
+abstract trait Cov46[A >: Null, -B] extends AnyRef
extest.Cov46[_ >: Null, _]
-abstract trait Cov47[-A >: Null, +B] extends Object
+abstract trait Cov47[-A >: Null, +B] extends AnyRef
extest.Cov47[_ >: Null, _]
-abstract trait Cov48[-A >: Null, B] extends Object
+abstract trait Cov48[-A >: Null, B] extends AnyRef
extest.Cov48[_ >: Null, _]
-abstract trait Cov49[-A >: Null, -B] extends Object
+abstract trait Cov49[-A >: Null, -B] extends AnyRef
extest.Cov49[_ >: Null, _]
-abstract trait Covariant[+A <: AnyRef, +B] extends Object
+abstract trait Covariant[+A <: AnyRef, +B] extends AnyRef
extest.Covariant[_ <: AnyRef, _]
-abstract trait CovariantLike[+A <: AnyRef, +B <: List[A], +This <: extest.CovariantLike[A,B,This] with extest.Covariant[A,B]] extends Object
+abstract trait CovariantLike[+A <: AnyRef, +B <: List[A], +This <: extest.CovariantLike[A,B,This] with extest.Covariant[A,B]] extends AnyRef
extest.CovariantLike[A,B,This] forSome { +A <: AnyRef; +B <: List[A]; +This <: extest.CovariantLike[A,B,This] with extest.Covariant[A,B] }
diff --git a/test/files/run/existentials3-new.check b/test/files/run/existentials3-new.check
index 00614b19db..8f7dd701ac 100644
--- a/test/files/run/existentials3-new.check
+++ b/test/files/run/existentials3-new.check
@@ -7,7 +7,7 @@ Test.ToS, t=RefinedType, s=f5
() => Test.ToS, t=TypeRef, s=trait Function0
$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[AnyRef{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=type Bar.type
@@ -19,6 +19,6 @@ Test.ToS, t=RefinedType, s=g5
() => Test.ToS, t=TypeRef, s=trait Function0
$anon, t=TypeRef, s=type $anon
$anon, t=TypeRef, s=type $anon
-List[java.lang.Object{type T1}#T1], t=TypeRef, s=class List
+List[AnyRef{type T1}#T1], t=TypeRef, s=class List
List[Seq[Int]], t=TypeRef, s=class List
List[Seq[U forSome { type U <: Int }]], t=TypeRef, s=class List
diff --git a/test/files/run/existentials3-old.check b/test/files/run/existentials3-old.check
index 72abfac637..36a458dacc 100644
--- a/test/files/run/existentials3-old.check
+++ b/test/files/run/existentials3-old.check
@@ -5,7 +5,7 @@ Object with Test$ToS
Object with Test$ToS
scala.Function0[Object with Test$ToS]
scala.Function0[Object with Test$ToS]
-_ <: Object with _ <: Object with Test$ToS
+_ <: Object with _ <: Object with Object with Test$ToS
_ <: Object with _ <: Object with _ <: Object with Test$ToS
scala.collection.immutable.List[Object with scala.collection.Seq[Int]]
scala.collection.immutable.List[Object with scala.collection.Seq[_ <: Int]]
@@ -16,7 +16,7 @@ Object with Test$ToS
Object with Test$ToS
scala.Function0[Object with Test$ToS]
scala.Function0[Object with Test$ToS]
-_ <: Object with _ <: Object with Test$ToS
+_ <: Object with _ <: Object with Object with Test$ToS
_ <: Object with _ <: Object with _ <: Object with Test$ToS
scala.collection.immutable.List[Object with scala.collection.Seq[Int]]
scala.collection.immutable.List[Object with scala.collection.Seq[_ <: Int]]
diff --git a/test/files/run/macro-declared-in-trait.check b/test/files/run/macro-declared-in-trait.check
index 104ff1e99b..0d70ac74f3 100644
--- a/test/files/run/macro-declared-in-trait.check
+++ b/test/files/run/macro-declared-in-trait.check
@@ -1,5 +1,5 @@
prefix = Expr[Nothing]({
- final class $anon extends Object with Base {
+ final class $anon extends AnyRef with Base {
def <init>(): anonymous class $anon = {
$anon.super.<init>();
()
diff --git a/test/files/run/reflection-equality.check b/test/files/run/reflection-equality.check
index 17c1f6dd70..65b525731f 100644
--- a/test/files/run/reflection-equality.check
+++ b/test/files/run/reflection-equality.check
@@ -24,7 +24,7 @@ cs: reflect.runtime.universe.ClassSymbol = class X
scala> val ts: Type = cs.typeSignature
ts: reflect.runtime.universe.Type =
-java.lang.Object {
+scala.AnyRef {
def <init>(): X
def methodIntIntInt(x: scala.Int,y: scala.Int): scala.Int
}
diff --git a/test/files/run/repl-colon-type.check b/test/files/run/repl-colon-type.check
index 35cd04ba87..56ddd74375 100644
--- a/test/files/run/repl-colon-type.check
+++ b/test/files/run/repl-colon-type.check
@@ -77,10 +77,10 @@ scala> :type -v List(1,2,3) filter _
// Internal Type structure
TypeRef(
- TypeSymbol(abstract trait Function1[-T1, +R] extends Object)
+ TypeSymbol(abstract trait Function1[-T1, +R] extends AnyRef)
args = List(
TypeRef(
- TypeSymbol(abstract trait Function1[-T1, +R] extends Object)
+ TypeSymbol(abstract trait Function1[-T1, +R] extends AnyRef)
args = List(
TypeRef(TypeSymbol(final abstract class Int extends AnyVal))
TypeRef(
@@ -147,7 +147,7 @@ Int => Iterator[List[Nothing]]
// Internal Type structure
TypeRef(
- TypeSymbol(abstract trait Function1[-T1, +R] extends Object)
+ TypeSymbol(abstract trait Function1[-T1, +R] extends AnyRef)
args = List(
TypeRef(TypeSymbol(final abstract class Int extends AnyVal))
TypeRef(
@@ -180,7 +180,7 @@ PolyType(
typeParams = List(TypeParam(T <: AnyVal))
resultType = NullaryMethodType(
TypeRef(
- TypeSymbol(abstract trait Function1[-T1, +R] extends Object)
+ TypeSymbol(abstract trait Function1[-T1, +R] extends AnyRef)
args = List(
TypeRef(TypeSymbol(final abstract class Int extends AnyVal))
TypeRef(
diff --git a/test/files/run/repl-parens.check b/test/files/run/repl-parens.check
index 4b7ce6b059..15f4b4524a 100644
--- a/test/files/run/repl-parens.check
+++ b/test/files/run/repl-parens.check
@@ -66,7 +66,7 @@ scala> 55 ; () => 5
res13: () => Int = <function0>
scala> () => { class X ; new X }
-res14: () => Object = <function0>
+res14: () => AnyRef = <function0>
scala>
diff --git a/test/files/run/t4172.check b/test/files/run/t4172.check
index f16c9e5151..94cdff4870 100644
--- a/test/files/run/t4172.check
+++ b/test/files/run/t4172.check
@@ -5,7 +5,7 @@ scala>
scala> val c = { class C { override def toString = "C" }; ((new C, new C { def f = 2 })) }
warning: there were 1 feature warnings; re-run with -feature for details
-c: (C, C{def f: Int}) forSome { type C <: Object } = (C,C)
+c: (C, C{def f: Int}) forSome { type C <: AnyRef } = (C,C)
scala>
diff --git a/test/files/run/t5256a.check b/test/files/run/t5256a.check
index 7e60139db3..09b5a02831 100644
--- a/test/files/run/t5256a.check
+++ b/test/files/run/t5256a.check
@@ -1,6 +1,6 @@
class A
A
-Object {
+AnyRef {
def <init>(): A
def foo: Nothing
}
diff --git a/test/files/run/t5256b.check b/test/files/run/t5256b.check
index a80df6eb30..ca93aaa706 100644
--- a/test/files/run/t5256b.check
+++ b/test/files/run/t5256b.check
@@ -1,6 +1,6 @@
class A
Test.A
-Object {
+AnyRef {
def <init>(): Test.A
def foo: Nothing
}
diff --git a/test/files/run/t5256d.check b/test/files/run/t5256d.check
index 9742ae572e..b7617e80a2 100644
--- a/test/files/run/t5256d.check
+++ b/test/files/run/t5256d.check
@@ -22,7 +22,7 @@ scala> println(c.fullName)
$line8.$read.$iw.$iw.$iw.$iw.A
scala> println(c.typeSignature)
-java.lang.Object {
+scala.AnyRef {
def <init>(): A
def foo: scala.Nothing
}
diff --git a/test/files/run/t5256e.check b/test/files/run/t5256e.check
index 011115720c..ed3513183e 100644
--- a/test/files/run/t5256e.check
+++ b/test/files/run/t5256e.check
@@ -1,6 +1,6 @@
class A
Test.C.A
-Object {
+AnyRef {
def <init>(): C.this.A
def foo: Nothing
}
diff --git a/test/files/run/t5256f.check b/test/files/run/t5256f.check
index e0fec85596..6a89d0b86a 100644
--- a/test/files/run/t5256f.check
+++ b/test/files/run/t5256f.check
@@ -1,12 +1,12 @@
class A1
Test.A1
-Object {
+AnyRef {
def <init>(): Test.A1
def foo: Nothing
}
class A2
Test.A2
-Object {
+AnyRef {
def <init>(): Test.this.A2
def foo: Nothing
}
diff --git a/test/files/scalap/abstractClass/result.test b/test/files/scalap/abstractClass/result.test
index 9163346fc6..ef1daac23d 100644
--- a/test/files/scalap/abstractClass/result.test
+++ b/test/files/scalap/abstractClass/result.test
@@ -1,4 +1,4 @@
-abstract class AbstractClass extends java.lang.Object {
+abstract class AbstractClass extends scala.AnyRef {
def this() = { /* compiled code */ }
def foo : scala.Predef.String
}
diff --git a/test/files/scalap/abstractMethod/result.test b/test/files/scalap/abstractMethod/result.test
index 90f572f258..40fa02d408 100644
--- a/test/files/scalap/abstractMethod/result.test
+++ b/test/files/scalap/abstractMethod/result.test
@@ -1,4 +1,4 @@
-trait AbstractMethod extends java.lang.Object {
+trait AbstractMethod extends scala.AnyRef {
def $init$() : scala.Unit = { /* compiled code */ }
def arity : scala.Int
def isCool : scala.Boolean = { /* compiled code */ }
diff --git a/test/files/scalap/cbnParam/result.test b/test/files/scalap/cbnParam/result.test
index fbe035d63c..52ecb6ae66 100644
--- a/test/files/scalap/cbnParam/result.test
+++ b/test/files/scalap/cbnParam/result.test
@@ -1,3 +1,3 @@
-class CbnParam extends java.lang.Object {
+class CbnParam extends scala.AnyRef {
def this(s : => scala.Predef.String) = { /* compiled code */ }
}
diff --git a/test/files/scalap/classPrivate/result.test b/test/files/scalap/classPrivate/result.test
index 5f2e1cc00e..ab2d40cdaf 100644
--- a/test/files/scalap/classPrivate/result.test
+++ b/test/files/scalap/classPrivate/result.test
@@ -1,7 +1,7 @@
-class ClassPrivate extends java.lang.Object {
+class ClassPrivate extends scala.AnyRef {
def this() = { /* compiled code */ }
def baz : scala.Int = { /* compiled code */ }
- class Outer extends java.lang.Object {
+ class Outer extends scala.AnyRef {
def this() = { /* compiled code */ }
private[ClassPrivate] def qux : scala.Int = { /* compiled code */ }
}
diff --git a/test/files/scalap/classWithExistential/result.test b/test/files/scalap/classWithExistential/result.test
index b8ce005da9..caee3fd6de 100644
--- a/test/files/scalap/classWithExistential/result.test
+++ b/test/files/scalap/classWithExistential/result.test
@@ -1,4 +1,4 @@
-class ClassWithExistential extends java.lang.Object {
+class ClassWithExistential extends scala.AnyRef {
def this() = { /* compiled code */ }
def foo[A, B] : scala.Function1[A, B forSome {type A <: scala.Seq[scala.Int]; type B >: scala.Predef.String}] = { /* compiled code */ }
}
diff --git a/test/files/scalap/classWithSelfAnnotation/result.test b/test/files/scalap/classWithSelfAnnotation/result.test
index df7bd86643..82bbd9e8df 100644
--- a/test/files/scalap/classWithSelfAnnotation/result.test
+++ b/test/files/scalap/classWithSelfAnnotation/result.test
@@ -1,4 +1,4 @@
-class ClassWithSelfAnnotation extends java.lang.Object {
+class ClassWithSelfAnnotation extends scala.AnyRef {
this : ClassWithSelfAnnotation with java.lang.CharSequence =>
def this() = { /* compiled code */ }
def foo : scala.Int = { /* compiled code */ }
diff --git a/test/files/scalap/covariantParam/result.test b/test/files/scalap/covariantParam/result.test
index 2f52f1f28e..f7a3c98966 100644
--- a/test/files/scalap/covariantParam/result.test
+++ b/test/files/scalap/covariantParam/result.test
@@ -1,4 +1,4 @@
-class CovariantParam[+A] extends java.lang.Object {
+class CovariantParam[+A] extends scala.AnyRef {
def this() = { /* compiled code */ }
def foo[A](a : A) : scala.Int = { /* compiled code */ }
}
diff --git a/test/files/scalap/defaultParameter/result.test b/test/files/scalap/defaultParameter/result.test
index 38bf6ac4e3..0c775ea7b5 100644
--- a/test/files/scalap/defaultParameter/result.test
+++ b/test/files/scalap/defaultParameter/result.test
@@ -1,3 +1,3 @@
-trait DefaultParameter extends java.lang.Object {
+trait DefaultParameter extends scala.AnyRef {
def foo(s : scala.Predef.String) : scala.Unit
-} \ No newline at end of file
+}
diff --git a/test/files/scalap/implicitParam/result.test b/test/files/scalap/implicitParam/result.test
index 0ea212dda6..a2cfd6092d 100644
--- a/test/files/scalap/implicitParam/result.test
+++ b/test/files/scalap/implicitParam/result.test
@@ -1,4 +1,4 @@
-class ImplicitParam extends java.lang.Object {
+class ImplicitParam extends scala.AnyRef {
def this() = { /* compiled code */ }
def foo(i : scala.Int)(implicit f : scala.Float, d : scala.Double) : scala.Int = { /* compiled code */ }
}
diff --git a/test/files/scalap/packageObject/result.test b/test/files/scalap/packageObject/result.test
index 94c6a01b08..5732d92958 100644
--- a/test/files/scalap/packageObject/result.test
+++ b/test/files/scalap/packageObject/result.test
@@ -1,4 +1,4 @@
-package object PackageObject extends java.lang.Object {
+package object PackageObject extends scala.AnyRef {
def this() = { /* compiled code */ }
type A = scala.Predef.String
def foo(i : scala.Int) : scala.Int = { /* compiled code */ }
diff --git a/test/files/scalap/paramClauses/result.test b/test/files/scalap/paramClauses/result.test
index dc4397386c..3a141e8faf 100644
--- a/test/files/scalap/paramClauses/result.test
+++ b/test/files/scalap/paramClauses/result.test
@@ -1,4 +1,4 @@
-class ParamClauses extends java.lang.Object {
+class ParamClauses extends scala.AnyRef {
def this() = { /* compiled code */ }
def foo(i : scala.Int)(s : scala.Predef.String)(t : scala.Double) : scala.Int = { /* compiled code */ }
}
diff --git a/test/files/scalap/paramNames/result.test b/test/files/scalap/paramNames/result.test
index 4d3c7d0c1e..85e37f858d 100644
--- a/test/files/scalap/paramNames/result.test
+++ b/test/files/scalap/paramNames/result.test
@@ -1,4 +1,4 @@
-class ParamNames extends java.lang.Object {
+class ParamNames extends scala.AnyRef {
def this() = { /* compiled code */ }
def foo(s : => scala.Seq[scala.Int], s2 : => scala.Seq[scala.Any]) : scala.Unit = { /* compiled code */ }
}
diff --git a/test/files/scalap/sequenceParam/result.test b/test/files/scalap/sequenceParam/result.test
index ed47c094fe..142d92fea3 100644
--- a/test/files/scalap/sequenceParam/result.test
+++ b/test/files/scalap/sequenceParam/result.test
@@ -1,3 +1,3 @@
-class SequenceParam extends java.lang.Object {
+class SequenceParam extends scala.AnyRef {
def this(s : scala.Predef.String, i : scala.Int*) = { /* compiled code */ }
}
diff --git a/test/files/scalap/simpleClass/result.test b/test/files/scalap/simpleClass/result.test
index 905046ce52..4fdf25d1cf 100644
--- a/test/files/scalap/simpleClass/result.test
+++ b/test/files/scalap/simpleClass/result.test
@@ -1,4 +1,4 @@
-class SimpleClass extends java.lang.Object {
+class SimpleClass extends scala.AnyRef {
def this() = { /* compiled code */ }
def foo : scala.Int = { /* compiled code */ }
}
diff --git a/test/files/scalap/traitObject/result.test b/test/files/scalap/traitObject/result.test
index d0521043c8..104ba14f1a 100644
--- a/test/files/scalap/traitObject/result.test
+++ b/test/files/scalap/traitObject/result.test
@@ -1,8 +1,8 @@
-trait TraitObject extends java.lang.Object {
+trait TraitObject extends scala.AnyRef {
def $init$() : scala.Unit = { /* compiled code */ }
def foo : scala.Int = { /* compiled code */ }
}
-object TraitObject extends java.lang.Object {
+object TraitObject extends scala.AnyRef {
def this() = { /* compiled code */ }
def bar : scala.Int = { /* compiled code */ }
}
diff --git a/test/files/scalap/typeAnnotations/result.test b/test/files/scalap/typeAnnotations/result.test
index d28712f12b..407b0235c6 100644
--- a/test/files/scalap/typeAnnotations/result.test
+++ b/test/files/scalap/typeAnnotations/result.test
@@ -1,4 +1,4 @@
-abstract class TypeAnnotations[@scala.specialized R] extends java.lang.Object {
+abstract class TypeAnnotations[@scala.specialized R] extends scala.AnyRef {
def this() = { /* compiled code */ }
@scala.specialized
val x : scala.Int = { /* compiled code */ }
diff --git a/test/files/scalap/valAndVar/result.test b/test/files/scalap/valAndVar/result.test
index 90081acade..e940da9801 100644
--- a/test/files/scalap/valAndVar/result.test
+++ b/test/files/scalap/valAndVar/result.test
@@ -1,4 +1,4 @@
-class ValAndVar extends java.lang.Object {
+class ValAndVar extends scala.AnyRef {
def this() = { /* compiled code */ }
val foo : java.lang.String = { /* compiled code */ }
var bar : scala.Int = { /* compiled code */ }
diff --git a/test/files/scalap/wildcardType/result.test b/test/files/scalap/wildcardType/result.test
index 28147b6605..e43261db32 100644
--- a/test/files/scalap/wildcardType/result.test
+++ b/test/files/scalap/wildcardType/result.test
@@ -1,3 +1,3 @@
-class WildcardType extends java.lang.Object {
+class WildcardType extends scala.AnyRef {
def this(f : scala.Function1[scala.Int, _]) = { /* compiled code */ }
}