package org.antlr.v4.runtime.tree.xpath;
import org.antlr.v4.runtime.tree.ParseTree;
import org.antlr.v4.runtime.tree.TerminalNode;
import org.antlr.v4.runtime.tree.Tree;
import org.antlr.v4.runtime.tree.Trees;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
public class XPathTokenElement extends XPathElement {
protected int tokenType;
public XPathTokenElement(String tokenName, int tokenType) {
super(tokenName);
this.tokenType = tokenType;
}
@Override
public Collection<ParseTree> evaluate(ParseTree t) {
// return all children of t that match nodeName
List<ParseTree> nodes = new ArrayList<ParseTree>();
for (Tree c : Trees.getChildren(t)) {
if ( c instanceof TerminalNode ) {
TerminalNode tnode = (TerminalNode)c;
if ( (tnode.getSymbol().getType() == tokenType && !invert) ||
(tnode.getSymbol().getType() != tokenType && invert) )
{
nodes.add(tnode);
}
}
}
return nodes;
}
}