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| author | Paul Phillips <paulp@improving.org> | 2010-06-15 21:14:14 +0000 |
|---|---|---|
| committer | Paul Phillips <paulp@improving.org> | 2010-06-15 21:14:14 +0000 |
| commit | 0c6cbdac433a001f76b1f9afd00f4280d17d1832 (patch) | |
| tree | 5832b44a587f89cb7d936ae8671333be8881ace0 /src/compiler | |
| parent | de7fbb051b280f794cb8d706414191e4d5d08bf9 (diff) | |
| download | scala-0c6cbdac433a001f76b1f9afd00f4280d17d1832.tar.gz scala-0c6cbdac433a001f76b1f9afd00f4280d17d1832.tar.bz2 scala-0c6cbdac433a001f76b1f9afd00f4280d17d1832.zip | |
Disables NotNull checking unless -Ynotnull is g...
Disables NotNull checking unless -Ynotnull is given. Closes #3568,
review by odersky.
Diffstat (limited to 'src/compiler')
| -rw-r--r-- | src/compiler/scala/tools/nsc/settings/ScalaSettings.scala | 1 | ||||
| -rw-r--r-- | src/compiler/scala/tools/nsc/symtab/Types.scala | 7 |
2 files changed, 6 insertions, 2 deletions
diff --git a/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala b/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala index 51b47f87d6..2454d233f4 100644 --- a/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala +++ b/src/compiler/scala/tools/nsc/settings/ScalaSettings.scala @@ -138,6 +138,7 @@ trait ScalaSettings extends AbsScalaSettings with StandardScalaSettings { val Ycompletion = BooleanSetting ("-Ycompletion-debug", "Trace all tab completion activity.") val Ypmatnaive = BooleanSetting ("-Ypmat-naive", "Desugar matches as naively as possible..") val Yjenkins = BooleanSetting ("-Yjenkins-hashCodes", "Use jenkins hash algorithm for case class generated hashCodes.") + val Ynotnull = BooleanSetting ("-Ynotnull", "Enable the experimental and incomplete scala.NotNull") // Warnings val Ywarndeadcode = BooleanSetting ("-Ywarn-dead-code", "Emit warnings for dead code") diff --git a/src/compiler/scala/tools/nsc/symtab/Types.scala b/src/compiler/scala/tools/nsc/symtab/Types.scala index c291a391ca..2eca101aab 100644 --- a/src/compiler/scala/tools/nsc/symtab/Types.scala +++ b/src/compiler/scala/tools/nsc/symtab/Types.scala @@ -385,9 +385,12 @@ trait Types extends reflect.generic.Types { self: SymbolTable => * the empty list for all other types */ def boundSyms: List[Symbol] = List() - /** Mixin a NotNull trait unless type already has one */ + /** Mixin a NotNull trait unless type already has one + * ...if the option is given, since it is causing typing bugs. + */ def notNull: Type = - if (isNotNull || phase.erasedTypes) this else NotNullType(this) + if (!settings.Ynotnull.value || isNotNull || phase.erasedTypes) this + else NotNullType(this) /** Replace formal type parameter symbols with actual type arguments. * |