XPathTokenElement.java 文件源码

@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;
}