public void visit(OpPropFunc opPropFunc) {
Table table = eval(opPropFunc.getSubOp());
table =
evaluator.propertyFunction(
table,
opPropFunc.getProperty(),
opPropFunc.getSubjectArgs(),
opPropFunc.getObjectArgs());
push(table);
}
@Override
public Op transform(OpPropFunc opPropFunc, Op subOp) {
if (opPropFunc.getSubOp() != subOp)
opPropFunc =
new OpPropFunc(
opPropFunc.getProperty(),
opPropFunc.getSubjectArgs(),
opPropFunc.getObjectArgs(),
subOp);
// Put the (graph) back round it so the property function works on the named graph.
return new OpGraph(getNode(), opPropFunc);
}
@Override
public Op transform(OpPropFunc opPropFunc, Op subOp) {
PropFuncArg sArgs = opPropFunc.getSubjectArgs();
PropFuncArg oArgs = opPropFunc.getObjectArgs();
PropFuncArg sArgs2 = substitute(sArgs, binding);
PropFuncArg oArgs2 = substitute(oArgs, binding);
if (sArgs2 == sArgs && oArgs2 == oArgs && opPropFunc.getSubOp() == subOp)
return super.transform(opPropFunc, subOp);
return new OpPropFunc(opPropFunc.getProperty(), sArgs2, oArgs2, subOp);
}