Function fxProxyGetPrototype

xs/sources/xsProxy.c:464–495

}

txBoolean fxProxyGetPrototype(txMachine* the, txSlot* instance, txSlot* slot)
{
	txBoolean result;
	mxProxyDeclarations(_getPrototypeOf);
	if (function) {
		/* THIS */
		mxPushSlot(handler);
		/* FUNCTION */
		mxPushSlot(function);
		mxCall();
		/* ARGUMENTS */
		mxPushSlot(target);
		mxRunCount(1);
		mxPullSlot(slot);
		if ((slot->kind == XS_NULL_KIND) ||  (slot->kind == XS_REFERENCE_KIND)) {
			if (!mxBehaviorIsExtensible(the, target->value.reference)) {
				mxPushUndefined();
				mxBehaviorGetPrototype(the, target->value.reference, the->stack);
				if (!fxIsSameValue(the, slot, the->stack, 0))
					mxTypeError("(proxy).getPrototypeOf: different prototype for non-extensible object");
				mxPop();
			}
		}
		else
			mxTypeError("(proxy).getPrototypeOf: neither object nor null");
		result = (slot->kind == XS_NULL_KIND) ? 0 : 1;
	}
	else
		result = mxBehaviorGetPrototype(the, target->value.reference, slot);
	mxProxyPop();
	return result;
}

txBoolean fxProxyHasProperty(txMachine* the, txSlot* instance, txID id, txIndex index)
{