Function fxGetIterator

xs/sources/xsGenerator.c:304–325

}

txBoolean fxGetIterator(txMachine* the, txSlot* iterable, txSlot* iterator, txSlot* next, txBoolean optional)
{
	mxPushSlot(iterable);
	mxDub();
	mxGetID(mxID(_Symbol_iterator));
	if (optional && (mxIsUndefined(the->stack) || mxIsNull(the->stack))) {
		mxPop();
		mxPop();
		return 0;
	}
	mxCall();
	mxRunCount(0);
	if (!mxIsReference(the->stack))
		mxTypeError("iterator: not an object");
	if (next) {
		mxDub();
		mxGetID(mxID(_next));
		mxPullSlot(next);
	}
	mxPullSlot(iterator);
	return 1;
}

txBoolean fxGetIteratorFlattenable(txMachine* the, txSlot* iterable, txSlot* iterator, txSlot* next, txBoolean optional)
{