diff options
| -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) |