XPathRuleElement.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 ParserRuleContext ) {
            ParserRuleContext ctx = (ParserRuleContext)c;
            if ( (ctx.getRuleIndex() == ruleIndex && !invert) ||
                 (ctx.getRuleIndex() != ruleIndex && invert) )
            {
                nodes.add(ctx);
            }
        }
    }
    return nodes;
}