[Webkit-unassigned] [Bug 104242] New: Attribute ReadOnly is not applied to global object's properties set via JSObjectSetProperty
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Dec 6 01:51:41 PST 2012
https://bugs.webkit.org/show_bug.cgi?id=104242
Summary: Attribute ReadOnly is not applied to global object's
properties set via JSObjectSetProperty
Product: WebKit
Version: 528+ (Nightly build)
Platform: Other
OS/Version: Linux
Status: UNCONFIRMED
Severity: Normal
Priority: P2
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: hojong.han at samsung.com
Source/JavaScriptCore/API/JSObjectRef.cpp
void JSObjectSetProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef value, JSPropertyAttributes attributes, JSValueRef* exception)
{
... skip ...
jsObject->methodTable()->putDirectVirtual(jsObject, exec, name, jsValue, attributes);
... skip ...
}
Source/JavaScriptCore/runtime/JSGlobalObject.cpp
void JSGlobalObject::putDirectVirtual(JSObject* object, ExecState* exec, PropertyName propertyName, JSValue value, unsigned attributes)
{
... skip ...
JSValue valueBefore = thisObject->getDirect(exec->globalData(), propertyName);
PutPropertySlot slot;
Base::put(thisObject, exec, propertyName, value, slot);
if (!valueBefore) {
JSValue valueAfter = thisObject->getDirect(exec->globalData(), propertyName);
if (valueAfter)
JSObject::putDirectVirtual(thisObject, exec, propertyName, valueAfter, attributes);
}
}
putDirectVirtual called in JSObjectSetProperty calls put and then putDirectVirtual.
Property is put without any attribute in function "put", but stil attribute is not updated in function "putDirectVirtual".
Isn't it a bug?
Plz somebody let me know the reason why the routine is written like above.
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