QueryTripleIterator at line 87 calls Var.isVar(node) which throws an
exception if the node is a Node_Variable. But based code following line 87
I think that Node_Variable should be accepted.
{noformat}
private static Node substitute(Node node, Binding binding)
{
if ( Var.isVar(node) ) // <---- line 87
{
Node x = binding.get(Var.alloc(node)) ;
if ( x != null )
return x ;
}
return node ;
}
{noformat}
I think that perhaps the if check should be
if (node instanceof Node_Variable)
As with a lot of this code I am not certain and want to verify before I
change anything.
Claude
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