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author | Miles Sabin <miles@milessabin.com> | 2016-11-28 12:11:07 +0000 |
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committer | Miles Sabin <miles@milessabin.com> | 2016-11-28 12:12:23 +0000 |
commit | 6ec56abd80cb8f4c4f2c4a8b4788d2e17ce84942 (patch) | |
tree | 3b708d99daacb48542c62a476fde68fb4cd3c2e2 /src | |
parent | 690ba800ec04f05c0f5e5e369863ab5b9578d42f (diff) | |
download | scala-6ec56abd80cb8f4c4f2c4a8b4788d2e17ce84942.tar.gz scala-6ec56abd80cb8f4c4f2c4a8b4788d2e17ce84942.tar.bz2 scala-6ec56abd80cb8f4c4f2c4a8b4788d2e17ce84942.zip |
Pattern matching virtualization now guarded by -Yvirtpatmat.
Diffstat (limited to 'src')
4 files changed, 4 insertions, 1 deletions
diff --git a/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala b/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala index 5eb99e0d98..a3b9df1518 100644 --- a/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala +++ b/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala @@ -215,6 +215,7 @@ trait ScalaSettings extends AbsScalaSettings val inferByName = BooleanSetting ("-Yinfer-by-name", "Allow inference of by-name types. This is a temporary option to ease transition. See SI-7899.").withDeprecationMessage(removalIn212) val YdisableFlatCpCaching = BooleanSetting ("-YdisableFlatCpCaching", "Do not cache flat classpath representation of classpath elements from jars across compiler instances.") val YpartialUnification = BooleanSetting ("-Ypartial-unification", "Enable partial unification in type constructor inference") + val Yvirtpatmat = BooleanSetting ("-Yvirtpatmat", "Enable pattern matcher virtualization") val exposeEmptyPackage = BooleanSetting ("-Yexpose-empty-package", "Internal only: expose the empty package.").internalOnly() val Ydelambdafy = ChoiceSetting ("-Ydelambdafy", "strategy", "Strategy used for translating lambdas into JVM code.", List("inline", "method"), "method") diff --git a/src/compiler/scala/tools/nsc/typechecker/Typers.scala b/src/compiler/scala/tools/nsc/typechecker/Typers.scala index cca6f280e3..c89a410334 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Typers.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Typers.scala @@ -2555,7 +2555,7 @@ trait Typers extends Adaptations with Tags with TypersTracking with PatternTyper // TODO: add fallback __match sentinel to predef val matchStrategy: Tree = - if (!(settings.Xexperimental && context.isNameInScope(vpmName._match))) null // fast path, avoiding the next line if there's no __match to be seen + if (!(settings.Yvirtpatmat && context.isNameInScope(vpmName._match))) null // fast path, avoiding the next line if there's no __match to be seen else newTyper(context.makeImplicit(reportAmbiguousErrors = false)).silent(_.typed(Ident(vpmName._match)), reportAmbiguousErrors = false) orElse (_ => null) if (matchStrategy ne null) // virtualize diff --git a/src/reflect/scala/reflect/internal/settings/MutableSettings.scala b/src/reflect/scala/reflect/internal/settings/MutableSettings.scala index 5a2c802476..ab933ae617 100644 --- a/src/reflect/scala/reflect/internal/settings/MutableSettings.scala +++ b/src/reflect/scala/reflect/internal/settings/MutableSettings.scala @@ -54,6 +54,7 @@ abstract class MutableSettings extends AbsSettings { def uniqid: BooleanSetting def verbose: BooleanSetting def YpartialUnification: BooleanSetting + def Yvirtpatmat: BooleanSetting def Yrecursion: IntSetting def maxClassfileName: IntSetting diff --git a/src/reflect/scala/reflect/runtime/Settings.scala b/src/reflect/scala/reflect/runtime/Settings.scala index 3b33f089e1..2d8bacd3b2 100644 --- a/src/reflect/scala/reflect/runtime/Settings.scala +++ b/src/reflect/scala/reflect/runtime/Settings.scala @@ -48,6 +48,7 @@ private[reflect] class Settings extends MutableSettings { val uniqid = new BooleanSetting(false) val verbose = new BooleanSetting(false) val YpartialUnification = new BooleanSetting(false) + val Yvirtpatmat = new BooleanSetting(false) val Yrecursion = new IntSetting(0) val maxClassfileName = new IntSetting(255) |