Bug 18671 – SquirrelFish: continue inside switch fails

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Oliver Hunt]

Valid continue statements fail inside a switch statement

while(1) {
   print("foo");
   switch(1) { case 1: continue; }
}

The problem is that getJumpContext with an empty label will return the nearest JumpContext, but in the case of continue it needs to return the nearest JumpContext with a continue target.

[Cameron Zwarich (cpst)]

Created attachment 20741 [details]
Proposed patch

Here is a fix.

[Oliver Hunt]

Comment on attachment 20741 [details]
Proposed patch

I'd prefer:
+        if (forContinue) {
+            for (int i = m_jumpContextStack.size() - 1; i >= 0; i--) {
+                JumpContext* scope = &m_jumpContextStack[i];
+                if (scope->continueTarget)
+                    return scope;                
+            }
+            return 0;
+       }

But other than that, r=me

[Cameron Zwarich (cpst)]

Created attachment 20742 [details]
Revised proposed patch

Modified as per Oliver's suggestion.