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author | Den Shabalin <den.shabalin@gmail.com> | 2013-12-02 13:57:53 +0100 |
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committer | Den Shabalin <den.shabalin@gmail.com> | 2013-12-10 16:02:44 +0100 |
commit | f3c260bf89942ff58796ed7d242ad2e106331f83 (patch) | |
tree | 2a80e5d601d1dac8b8ab427b2eda611a38d4de25 /test/files | |
parent | 26a33482718dc165ed5f9c4703205c94b9d0c058 (diff) | |
download | scala-f3c260bf89942ff58796ed7d242ad2e106331f83.tar.gz scala-f3c260bf89942ff58796ed7d242ad2e106331f83.tar.bz2 scala-f3c260bf89942ff58796ed7d242ad2e106331f83.zip |
Move Liftable into the Universe cake; add additional standard Liftables
Previously we believed that having Liftable outside of the Universe will
bring some advantages but it turned out this wasn’t worth it. Due to
infectious nature of path dependent types inside of the universe one
had to cast a lot. A nice example of what I’m talking about is a change
in trait ArbitraryTreesAndNames.
Additionally a number of standard Liftables is added for types that are
available through Predef and/or default scala._ import: Array, Vector,
List, Map, Set, Option, Either, TupleN.
Diffstat (limited to 'test/files')
3 files changed, 12 insertions, 20 deletions
diff --git a/test/files/pos/macro-implicit-invalidate-on-error.scala b/test/files/pos/macro-implicit-invalidate-on-error.scala index 22cd2d34b4..f9756d965f 100644 --- a/test/files/pos/macro-implicit-invalidate-on-error.scala +++ b/test/files/pos/macro-implicit-invalidate-on-error.scala @@ -1,23 +1,20 @@ -package scala.reflect -package api - import scala.language.experimental.macros import scala.reflect.macros.Context -trait Liftable[T] { - def apply(universe: api.Universe, value: T): universe.Tree +trait LegacyLiftable[T] { + def apply(universe: scala.reflect.api.Universe, value: T): universe.Tree } -object Liftable { - implicit def liftCaseClass[T <: Product]: Liftable[T] = macro liftCaseClassImpl[T] +object LegacyLiftable { + implicit def liftCaseClass[T <: Product]: LegacyLiftable[T] = macro liftCaseClassImpl[T] - def liftCaseClassImpl[T: c.WeakTypeTag](c: Context): c.Expr[Liftable[T]] = { + def liftCaseClassImpl[T: c.WeakTypeTag](c: Context): c.Expr[LegacyLiftable[T]] = { import c.universe._ val tpe = weakTypeOf[T] if (!tpe.typeSymbol.asClass.isCaseClass) c.abort(c.enclosingPosition, "denied") val p = List(q"Literal(Constant(1))") - c.Expr[Liftable[T]] { q""" - new scala.reflect.api.Liftable[$tpe] { + c.Expr[LegacyLiftable[T]] { q""" + new LegacyLiftable[$tpe] { def apply(universe: scala.reflect.api.Universe, value: $tpe): universe.Tree = { import universe._ Apply(Select(Ident(TermName("C")), TermName("apply")), List(..$p)) diff --git a/test/files/scalacheck/quasiquotes/ArbitraryTreesAndNames.scala b/test/files/scalacheck/quasiquotes/ArbitraryTreesAndNames.scala index 7905a2ca15..c5cac3ea45 100644 --- a/test/files/scalacheck/quasiquotes/ArbitraryTreesAndNames.scala +++ b/test/files/scalacheck/quasiquotes/ArbitraryTreesAndNames.scala @@ -1,5 +1,4 @@ import org.scalacheck._, Prop._, Gen._, Arbitrary._ -import scala.reflect.api.{Liftable, Universe} import scala.reflect.runtime.universe._, Flag._ trait ArbitraryTreesAndNames { @@ -265,14 +264,8 @@ trait ArbitraryTreesAndNames { def genTreeIsTypeWrapped(size: Int) = for(tit <- genTreeIsType(size)) yield TreeIsType(tit) - implicit object liftTreeIsTerm extends Liftable[TreeIsTerm] { - def apply(universe: Universe, value: TreeIsTerm): universe.Tree = - value.tree.asInstanceOf[universe.Tree] - } - implicit object liftTreeIsType extends Liftable[TreeIsType] { - def apply(universe: Universe, value: TreeIsType): universe.Tree = - value.tree.asInstanceOf[universe.Tree] - } + implicit val liftTreeIsTerm = Liftable[TreeIsTerm] { _.tree } + implicit val liftTreeIsType = Liftable[TreeIsType] { _.tree } implicit def treeIsTerm2tree(tit: TreeIsTerm): Tree = tit.tree implicit def treeIsType2tree(tit: TreeIsType): Tree = tit.tree diff --git a/test/files/scalacheck/quasiquotes/QuasiquoteProperties.scala b/test/files/scalacheck/quasiquotes/QuasiquoteProperties.scala index b331c4b6b6..5411e664a2 100644 --- a/test/files/scalacheck/quasiquotes/QuasiquoteProperties.scala +++ b/test/files/scalacheck/quasiquotes/QuasiquoteProperties.scala @@ -120,4 +120,6 @@ trait Helpers { def annot(name: TypeName): Tree = annot(name, Nil) def annot(name: String, args: List[Tree]): Tree = annot(TypeName(name), args) def annot(name: TypeName, args: List[Tree]): Tree = q"new $name(..$args)" -}
\ No newline at end of file + + val scalapkg = build.setSymbol(Ident(TermName("scala")), definitions.ScalaPackage) +} |