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| author | Nicolas Stucki <nicolas.stucki@gmail.com> | 2016-11-15 16:56:40 +0100 |
|---|---|---|
| committer | Nicolas Stucki <nicolas.stucki@gmail.com> | 2016-11-17 10:09:08 +0100 |
| commit | f68058c02db32f33ccbd53a9e1ca346701a72abb (patch) | |
| tree | 817e7dc22f878051be25c347bd42242b5ccb7ec9 /src/dotty/tools/dotc/core/TypeComparer.scala | |
| parent | 2d18af61581696efe0e2869472c9d4214370cc9f (diff) | |
| download | dotty-f68058c02db32f33ccbd53a9e1ca346701a72abb.tar.gz dotty-f68058c02db32f33ccbd53a9e1ca346701a72abb.tar.bz2 dotty-f68058c02db32f33ccbd53a9e1ca346701a72abb.zip | |
Add warning on != with same type fix isNullable.
Note that without the fix console tests will fail and without
the warning there is no way to test the fix.
Diffstat (limited to 'src/dotty/tools/dotc/core/TypeComparer.scala')
| -rw-r--r-- | src/dotty/tools/dotc/core/TypeComparer.scala | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/dotty/tools/dotc/core/TypeComparer.scala b/src/dotty/tools/dotc/core/TypeComparer.scala index 1980fe50d..0e1d373a8 100644 --- a/src/dotty/tools/dotc/core/TypeComparer.scala +++ b/src/dotty/tools/dotc/core/TypeComparer.scala @@ -527,7 +527,7 @@ class TypeComparer(initctx: Context) extends DotClass with ConstraintHandling { } isSubType(hi1, tp2) || compareGADT case _ => - def isNullable(tp: Type): Boolean = tp.dealias match { + def isNullable(tp: Type): Boolean = tp.widenDealias match { case tp: TypeRef => tp.symbol.isNullableClass case tp: RefinedOrRecType => isNullable(tp.parent) case AndType(tp1, tp2) => isNullable(tp1) && isNullable(tp2) |