diff options
| -rw-r--r-- | src/compiler/scala/tools/nsc/symtab/Types.scala | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/compiler/scala/tools/nsc/symtab/Types.scala b/src/compiler/scala/tools/nsc/symtab/Types.scala index 823ed8ed6c..668f7149a9 100644 --- a/src/compiler/scala/tools/nsc/symtab/Types.scala +++ b/src/compiler/scala/tools/nsc/symtab/Types.scala @@ -1507,6 +1507,7 @@ trait Types { private var baseTypeSeqPeriod = NoPeriod override def isStable: Boolean = { + sym == NothingClass || sym == SingletonClass || sym.isAliasType && normalize.isStable || sym.isAbstractType && (bounds.hi.typeSymbol isSubClass SingletonClass) |