JSObjectOps.enumerate

Warning: JSObjectOps is not a supported API. Details of the API may change from one release to the next. This documentation should be considered SpiderMonkey internals documentation, not API documentation. See bug 408416 .

The JSObjectOps.enumerate callback implements iteration over object properties. The type of the callback is JSNewEnumerateOp.

For native objects, the enumerate callback first checks the JSCLASS_NEW_ENUMERATE flag of the object's class. If the flag is present, enumerate simply delegates the call to JSClass.enumerate.

Otherwise, it invokes the JSClass.enumerate hook as an old-style JSEnumerateOp to give the object an opportunity to define any remaining lazy properties. Then it iterates over obj's defined properties, walking the internal data structure they're stored in.