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control flow construction: creation of unbound labels in when fixed

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svtk
2012-01-18 14:34:28 +04:00
parent c256bdb44f
commit cbcfeaa1b7
1 changed files with 6 additions and 3 deletions
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compiler/frontend/src/org/jetbrains/jet/lang/cfg/JetControlFlowProcessor.java
+6 -3
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@@ -750,7 +750,7 @@ public class JetControlFlowProcessor {
Label doneLabel = builder.createUnboundLabel(); Label doneLabel = builder.createUnboundLabel();
Label nextLabel = builder.createUnboundLabel(); Label nextLabel = null;
for (Iterator<JetWhenEntry> iterator = expression.getEntries().iterator(); iterator.hasNext(); ) { for (Iterator<JetWhenEntry> iterator = expression.getEntries().iterator(); iterator.hasNext(); ) {
JetWhenEntry whenEntry = iterator.next(); JetWhenEntry whenEntry = iterator.next();
@@ -779,6 +779,7 @@ public class JetControlFlowProcessor {
} }
if (!isIrrefutable) { if (!isIrrefutable) {
nextLabel = builder.createUnboundLabel();
builder.nondeterministicJump(nextLabel); builder.nondeterministicJump(nextLabel);
} }
@@ -786,8 +787,10 @@ public class JetControlFlowProcessor {
value(whenEntry.getExpression(), inCondition); value(whenEntry.getExpression(), inCondition);
builder.allowDead(); builder.allowDead();
builder.jump(doneLabel); builder.jump(doneLabel);
builder.bindLabel(nextLabel);
nextLabel = builder.createUnboundLabel(); if (!isIrrefutable) {
builder.bindLabel(nextLabel);
}
} }
builder.bindLabel(doneLabel); builder.bindLabel(doneLabel);
if (!hasElseOrIrrefutableBranch) { if (!hasElseOrIrrefutableBranch) {