diff options
| -rw-r--r-- | src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala b/src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala index f3632b144d..f655e4e1cb 100644 --- a/src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala +++ b/src/compiler/scala/tools/nsc/typechecker/MethodSynthesis.scala @@ -395,12 +395,13 @@ trait MethodSynthesis { // starts compiling (instead of failing like it's supposed to) because the typer // expects to be able to identify escaping locals in typedDefDef, and fails to // spot that brand of them. In other words it's an artifact of the implementation. - val tpt = derivedSym.tpe_*.finalResultType.widen match { + val getterTp = derivedSym.tpe_*.finalResultType + val tpt = getterTp.widen match { // Range position errors ensue if we don't duplicate this in some // circumstances (at least: concrete vals with existential types.) - case ExistentialType(_, _) => TypeTree() setOriginal (tree.tpt.duplicate setPos tree.tpt.pos.focus) - case _ if isDeferred => TypeTree() setOriginal tree.tpt // keep type tree of original abstract field - case tp => TypeTree(tp) + case _: ExistentialType => TypeTree() setOriginal (tree.tpt.duplicate setPos tree.tpt.pos.focus) + case _ if isDeferred => TypeTree() setOriginal tree.tpt // keep type tree of original abstract field + case _ => TypeTree(getterTp) } tpt setPos tree.tpt.pos.focus } |