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Bug 862610. When we have named constructors, make sure we managed to set up an interface object before looking for them. r=peterv

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This commit is contained in:
Boris Zbarsky 2013-04-18 01:21:46 -04:00
parent efe4d8a5a5
commit 5508e4bd90
3 changed files with 24 additions and 0 deletions
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3
dom/bindings/Codegen.py
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@ -1786,6 +1786,9 @@ class CGDefineDOMInterfaceMethod(CGAbstractMethod):
def definition_body(self): def definition_body(self):
if len(self.descriptor.interface.namedConstructors) > 0: if len(self.descriptor.interface.namedConstructors) > 0:
getConstructor = """ JSObject* interfaceObject = GetConstructorObject(aCx, aGlobal); getConstructor = """ JSObject* interfaceObject = GetConstructorObject(aCx, aGlobal);
if (!interfaceObject) {
return nullptr;
}
for (unsigned slot = DOM_INTERFACE_SLOTS_BASE; slot < JSCLASS_RESERVED_SLOTS(&InterfaceObjectClass.mBase); ++slot) { for (unsigned slot = DOM_INTERFACE_SLOTS_BASE; slot < JSCLASS_RESERVED_SLOTS(&InterfaceObjectClass.mBase); ++slot) {
JSObject* constructor = &js::GetReservedSlot(interfaceObject, slot).toObject(); JSObject* constructor = &js::GetReservedSlot(interfaceObject, slot).toObject();
if (JS_GetFunctionId(JS_GetObjectFunction(constructor)) == JSID_TO_STRING(id)) { if (JS_GetFunctionId(JS_GetObjectFunction(constructor)) == JSID_TO_STRING(id)) {

20
dom/bindings/crashtests/862610.html Normal file
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@ -0,0 +1,20 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script>
HTMLElement.prototype.__proto__ = Proxy.create({}, {});
try {
window.Image;
} finally {
// Restore our prototype so the test harnesses can deal with us
// We can't just assign to __proto__ because it lives on our proto chain
// and we messed that up.
var desc = Object.getOwnPropertyDescriptor(Object.prototype, "__proto__");
desc.set.call(HTMLElement.prototype, Element.prototype);
}
</script>
</head>
<body></body>
</html>

1
dom/bindings/crashtests/crashtests.list
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@ -4,3 +4,4 @@ load 822340-2.html
load 832899.html load 832899.html
load 860591.html load 860591.html
load 860551.html load 860551.html
load 862610.html