diff options
| -rw-r--r-- | src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala | 4 | ||||
| -rw-r--r-- | test/files/run/t9806.scala | 18 |
2 files changed, 20 insertions, 2 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala b/src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala index a7ce7dfa04..eafaf41932 100644 --- a/src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala +++ b/src/compiler/scala/tools/nsc/backend/opt/ConstantOptimization.scala @@ -539,14 +539,14 @@ abstract class ConstantOptimization extends SubComponent { // number of instructions excluding the last one val normalCount = block.size - 1 - val exceptionState = in.cleanStack + var exceptionState = in.cleanStack var normalExitState = in var idx = 0 while (idx < normalCount) { val inst = block(idx) normalExitState = interpretInst(normalExitState, inst) if (normalExitState.locals ne exceptionState.locals) - exceptionState.copy(locals = exceptionState mergeLocals normalExitState.locals) + exceptionState = exceptionState.copy(locals = exceptionState mergeLocals normalExitState.locals) idx += 1 } diff --git a/test/files/run/t9806.scala b/test/files/run/t9806.scala new file mode 100644 index 0000000000..ccde989efe --- /dev/null +++ b/test/files/run/t9806.scala @@ -0,0 +1,18 @@ +object Ex extends Exception +object Test { + def main(args: Array[String]) { + try foo catch { case Ex => } + } + + def isTrue(b: Boolean) = b + def foo = { + var streamErrors1 = true + try { + streamErrors1 = false + throw Ex + } catch { + case ex if streamErrors1 => + assert(isTrue(streamErrors1)) + } + } +} |