Function fxProxySetPrototype

xs/sources/xsProxy.c:735–765

}

txBoolean fxProxySetPrototype(txMachine* the, txSlot* instance, txSlot* prototype)
{
	txBoolean result;
	mxProxyDeclarations(_setPrototypeOf);
	if (function) {
		/* THIS */
		mxPushSlot(handler);
		/* FUNCTION */
		mxPushSlot(function);
		mxCall();
		/* ARGUMENTS */
		mxPushSlot(target);
		mxPushSlot(prototype);
		mxRunCount(2);
		result = fxToBoolean(the, the->stack);
		mxPop();
		if (result) {
			if (!mxBehaviorIsExtensible(the, target->value.reference)) {
				mxPushUndefined();
				mxBehaviorGetPrototype(the, target->value.reference, the->stack);
				if (!fxIsSameValue(the, prototype, the->stack, 0))
					mxTypeError("(proxy).setPrototypeOf: true for non-extensible object with different prototype");
				mxPop();
			}
		}
	}
	else
		result = mxBehaviorSetPrototype(the, target->value.reference, prototype);
	mxProxyPop();
	return result;
}

void fx_Proxy(txMachine* the)
{