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Bug 948227 - Make the Object.prototype.__proto__ setter strongly warn against its use, for perf reasons (and suggest Object.create instead). r=efaust

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--HG--
extra : rebase_source : 9a08df51a56ae531956c0158fcae18c12ee77539
This commit is contained in:
Jeff Walden 2014-01-23 14:35:08 -08:00
parent f3d6f2f944
commit 810b115538
1 changed files with 1 additions and 3 deletions
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4
js/src/vm/GlobalObject.h
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@ -629,9 +629,7 @@ class GlobalObject : public JSObject
// Warn about use of the given __proto__ setter to attempt to mutate an
// object's [[Prototype]], if no prior warning was given.
static bool warnOnceAboutPrototypeMutation(JSContext *cx, HandleObject protoSetter) {
// Temporarily disabled until the second half of bug 948583 lands.
//return warnOnceAbout(cx, protoSetter, WARNED_PROTO_SETTING_SLOW, JSMSG_PROTO_SETTING_SLOW);
return true;
return warnOnceAbout(cx, protoSetter, WARNED_PROTO_SETTING_SLOW, JSMSG_PROTO_SETTING_SLOW);
}
static bool getOrCreateEval(JSContext *cx, Handle<GlobalObject*> global,