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Fall off trace if 'this' is a 'with' object (496057, r=mrbkap).

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This commit is contained in:
Andreas Gal 2009-06-02 20:03:58 -07:00
parent f4be60c6d3
commit 9cc0784c1a
1 changed files with 9 additions and 4 deletions
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13
js/src/jstracer.cpp
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@ -6729,7 +6729,15 @@ TraceRecorder::getThis(LIns*& this_ins)
/*
* js_ComputeThisForFrame updates cx->fp->argv[-1], so sample it into 'original' first.
*/
jsval original = cx->fp->callee ? cx->fp->argv[-1] : JSVAL_NULL;
jsval original = JSVAL_NULL;
if (cx->fp->callee) {
original = cx->fp->argv[-1];
if (!JSVAL_IS_PRIMITIVE(original) &&
guardClass(JSVAL_TO_OBJECT(original), get(&cx->fp->argv[-1]), &js_WithClass, snapshot(MISMATCH_EXIT))) {
ABORT_TRACE("can't trace getThis on With object");
}
}
JSObject* thisObj = js_ComputeThisForFrame(cx, cx->fp);
if (!thisObj)
ABORT_TRACE_ERROR("js_ComputeThisForName failed");
@ -6766,9 +6774,6 @@ TraceRecorder::getThis(LIns*& this_ins)
}
this_ins = get(&thisv);
if (guardClass(JSVAL_TO_OBJECT(thisv), this_ins, &js_WithClass, snapshot(MISMATCH_EXIT)))
ABORT_TRACE("can't trace getThis on With object");
/*
* The only unwrapped object that needs to be wrapped that we can get here is the
* global object obtained throught the scope chain.