diff options
| -rw-r--r-- | src/reflect/scala/reflect/internal/TreeGen.scala | 2 | ||||
| -rw-r--r-- | test/files/pos/t5958.scala | 15 |
2 files changed, 17 insertions, 0 deletions
diff --git a/src/reflect/scala/reflect/internal/TreeGen.scala b/src/reflect/scala/reflect/internal/TreeGen.scala index c3a6fce164..285700f9ff 100644 --- a/src/reflect/scala/reflect/internal/TreeGen.scala +++ b/src/reflect/scala/reflect/internal/TreeGen.scala @@ -143,6 +143,8 @@ abstract class TreeGen extends makro.TreeBuilder { /** Computes stable type for a tree if possible */ def stableTypeFor(tree: Tree): Option[Type] = tree match { + case This(_) if tree.symbol != null && !tree.symbol.isError => + Some(ThisType(tree.symbol)) case Ident(_) if tree.symbol.isStable => Some(singleType(tree.symbol.owner.thisType, tree.symbol)) case Select(qual, _) if ((tree.symbol ne null) && (qual.tpe ne null)) && // turned assert into guard for #4064 diff --git a/test/files/pos/t5958.scala b/test/files/pos/t5958.scala new file mode 100644 index 0000000000..3b910f3633 --- /dev/null +++ b/test/files/pos/t5958.scala @@ -0,0 +1,15 @@ +class Test { + def newComponent(u: Universe): u.Component = ??? + + class Universe { self => + class Component + + newComponent(this): this.Component // error, but should be fine since this is a stable reference + newComponent(self): self.Component // error, but should be fine since this is a stable reference + newComponent(self): this.Component // error, but should be fine since this is a stable reference + newComponent(this): self.Component // error, but should be fine since this is a stable reference + + val u = this + newComponent(u): u.Component // ok + } +}
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