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-rw-r--r--src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala b/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
index 38c2c5f719..74c51ece9f 100644
--- a/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
@@ -401,7 +401,11 @@ trait TypeDiagnostics {
object checkDead {
private var expr: Symbol = NoSymbol
- private def exprOK = expr != Object_synchronized
+
+ private def exprOK =
+ (expr != Object_synchronized) &&
+ !(expr.isLabel && treeInfo.isSynthCaseSymbol(expr)) // it's okay to jump to matchEnd (or another case) with an argument of type nothing
+
private def treeOK(tree: Tree) = tree.tpe != null && tree.tpe.typeSymbol == NothingClass
def updateExpr(fn: Tree) = {