[Webkit-unassigned] [Bug 169040] Class Proxy can't be extended
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Apr 17 14:51:19 PDT 2017
https://bugs.webkit.org/show_bug.cgi?id=169040
--- Comment #9 from Saam Barati <sbarati at apple.com> ---
Hmm, I wonder if this is a private name. ProxyObject has this code:
```
static JSValue performProxyGet(ExecState* exec, ProxyObject* proxyObject, JSValue receiver, PropertyName propertyName)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (UNLIKELY(!vm.isSafeToRecurseSoft())) {
throwStackOverflowError(exec, scope);
return { };
}
JSObject* target = proxyObject->target();
auto performDefaultGet = [&] {
return target->get(exec, propertyName);
};
if (vm.propertyNames->isPrivateName(Identifier::fromUid(&vm, propertyName.uid()))) {
scope.release();
return performDefaultGet();
}
...
```
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