@Override
protected QueryIterator processMethod() throws AsyncException {
// subject a variable.
if (objectArgs.size() != 2)
throw new ExprEvalException("ListIndex : object not a list of length 2");
Node indexNode = objectArgs.get(0);
Node memberNode = objectArgs.get(1);
final Collection<Node> x;
if (!Var.isVar(memberNode))
// If memberNode is defined, find lists containing it.
x =
GraphList.listFromMember(
getHandler("x"), new GNode(execCxt.getActiveGraph(), memberNode));
else
// Hard. Subject unbound, no fixed member. Find every list and use BFI.
x = GraphList.findAllLists(getHandler("x"), execCxt.getActiveGraph());
return listIndex.super.allLists(
getHandler(""),
binding,
x,
listVar,
predicate,
new PropFuncArg(objectArgs, null),
execCxt);
}
@Override
protected QueryIterator processMethod() throws AsyncException {
if (Var.isVar(listNode))
throw new ExprEvalException("ListIndex : subject not a list or variable bound to a list");
if (objectArgs.size() != 2)
throw new ExprEvalException("ListIndex : object not a list of length 2");
Node indexNode = objectArgs.get(0);
Node memberNode = objectArgs.get(1);
Graph graph = execCxt.getActiveGraph();
if (Var.isVar(indexNode) && !Var.isVar(memberNode))
return findIndex(
getHandler(""), graph, binding, listNode, Var.alloc(indexNode), memberNode, execCxt);
// if ( ! Var.isVar(indexNode) && Var.isVar(memberNode) )
// return getByIndex(getHandler(""), graph, binding, listNode, indexNode,
// Var.alloc(memberNode), execCxt) ;
//
// if ( ! Var.isVar(indexNode) && ! Var.isVar(memberNode) )
// return testSlotValue(getHandler(""), graph, binding, listNode, indexNode,
// memberNode, execCxt) ;
return findIndexMember(
getHandler(""),
graph,
binding,
listNode,
Var.alloc(indexNode),
Var.alloc(memberNode),
execCxt);
}