Function fxProxyHasProperty

xs/sources/xsProxy.c:497–529

}

txBoolean fxProxyHasProperty(txMachine* the, txSlot* instance, txID id, txIndex index)
{
	txBoolean result;
	mxProxyDeclarations(_has);
	if (function) {
		/* THIS */
		mxPushSlot(handler);
		/* FUNCTION */
		mxPushSlot(function);
		mxCall();
		/* ARGUMENTS */
		mxPushSlot(target);
		mxPushUndefined();
		fxKeyAt(the, id, index, the->stack);
		mxRunCount(2);
		result = fxToBoolean(the, the->stack);
		mxPop();
		if (!result) {
			mxPushUndefined();
			if (mxBehaviorGetOwnProperty(the, target->value.reference, id, index, the->stack)) {
				if (the->stack->flag & XS_DONT_DELETE_FLAG)
					mxTypeError("(proxy).has: false for non-configurable property");
				 if (!mxBehaviorIsExtensible(the, target->value.reference)) 
					mxTypeError("(proxy).has: false for property of not extensible object");
			}
			mxPop();
		}
	}
	else
		result = mxBehaviorHasProperty(the, target->value.reference, id, index);
	mxProxyPop();
	return result;
}

txBoolean fxProxyIsExtensible(txMachine* the, txSlot* instance)
{