RefactorUtils.java 文件源码

/** Given a token index into buffer, find surrounding rule then return
     *  char position of start of next rule.
     */
    public static int getCharIndexOfNextRuleStart(ParserRuleContext tree, int tokenIndex) {
        final ParserRuleContext selNode =
            Trees.getRootOfSubtreeEnclosingRegion(tree, tokenIndex, tokenIndex);
        final ParserRuleContext ruleRoot = (ParserRuleContext)
            getAncestorWithType(selNode, ANTLRv4Parser.RuleSpecContext.class);

        return ruleRoot.getStop().getStopIndex() + 2; // insert after '\n' following ';'

//      int ruleIndex = childIndexOf(ruleRoot.getParent(), ruleRoot);
//      ParserRuleContext nextRuleRoot = (ParserRuleContext)ruleRoot.getParent().getChild(ruleIndex+1);
//      if ( nextRuleRoot==null ) { // this rule must be last in grammar; put after ';' of this rule
//      }
//      return nextRuleRoot.getStart().getStartIndex();
    }