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author | Jason Zaugg <jzaugg@gmail.com> | 2012-11-04 14:17:25 +0100 |
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committer | Jason Zaugg <jzaugg@gmail.com> | 2012-11-04 14:17:25 +0100 |
commit | 8265175ecc42293997d59049f430396c77a2b891 (patch) | |
tree | a24c7820bee892eb802d5c691e1e57a62ff43bb4 /src/compiler/scala/tools/nsc/transform/CleanUp.scala | |
parent | dad886659faca4fba2d4937c9bc6780591b02c27 (diff) | |
download | scala-8265175ecc42293997d59049f430396c77a2b891.tar.gz scala-8265175ecc42293997d59049f430396c77a2b891.tar.bz2 scala-8265175ecc42293997d59049f430396c77a2b891.zip |
Expand optimization of Array(e1, ..., en) to primitive arrays.
Diffstat (limited to 'src/compiler/scala/tools/nsc/transform/CleanUp.scala')
-rw-r--r-- | src/compiler/scala/tools/nsc/transform/CleanUp.scala | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/compiler/scala/tools/nsc/transform/CleanUp.scala b/src/compiler/scala/tools/nsc/transform/CleanUp.scala index bdcebf47b8..4f145d3d7e 100644 --- a/src/compiler/scala/tools/nsc/transform/CleanUp.scala +++ b/src/compiler/scala/tools/nsc/transform/CleanUp.scala @@ -629,6 +629,13 @@ abstract class CleanUp extends Transform with ast.TreeDSL { _.tpe.resultType.dealias.typeSymbol == ObjectClass // [T: ClassTag](xs: T*): Array[T] post erasure }) => super.transform(arg) + case Apply(appMeth, List(elem0, Apply(wrapArrayMeth, List(rest @ ArrayValue(elemtpt, _))))) + if wrapArrayMeth.symbol == Predef_wrapArray(elemtpt.tpe) && + appMeth.symbol == ArrayModule_overloadedApply.suchThat { + tp => tp.tpe.paramss.flatten.lift.apply(1).exists(_.tpe.typeSymbol == SeqClass) && + tp.tpe.resultType =:= arrayType(elemtpt.tpe) // (p1: AnyVal1, ps: AnyVal1*): Array[AnyVal1] post erasure + } => + super.transform(rest.copy(elems = elem0 :: rest.elems)) case _ => super.transform(tree) |