异常中的 JavaCC 行号

发布于 2025-01-12 22:38:35 字数 454 浏览 3 评论 0原文

我使用 JavaCC 来解析我的脚本... 我在 types.get 的 *.jj 中有这样的东西，

private Type parseType() throws MyScriptException:
{
    Token token;
}
{   (   token = <INT>
    |   token = <FLOAT>
    |   token = <BOOL>
    |   token = <STRING>
   )
    { return types.get(token.image); }
}

当出现任何问题时，我会从 MyScriptException 类型抛出异常。但我需要在输出中导致错误的行。我可以将错误代码行集成到 MyScriptException 中吗？

原文

i use JavaCC for parsing my script...
I have something like this in my *.jj

private Type parseType() throws MyScriptException:
{
    Token token;
}
{   (   token = <INT>
    |   token = <FLOAT>
    |   token = <BOOL>
    |   token = <STRING>
   )
    { return types.get(token.image); }
}

in types.get I throw an exception from type MyScriptException when anything goes wrong.
But I need in the output from which line the error was caused.
Can I integrate the line from error in MyScriptException?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

青春如此纠结 2025-01-19 22:38:35

Token 类具有给出令牌位置的属性：

  /** The line number of the first character of this Token. */
  public int beginLine;
  /** The column number of the first character of this Token. */
  public int beginColumn;
  /** The line number of the last character of this Token. */
  public int endLine;
  /** The column number of the last character of this Token. */
  public int endColumn;

The Token class has attributes that give the location of the token:

  /** The line number of the first character of this Token. */
  public int beginLine;
  /** The column number of the first character of this Token. */
  public int beginColumn;
  /** The line number of the last character of this Token. */
  public int endLine;
  /** The column number of the last character of this Token. */
  public int endColumn;

回复收藏 0 原文

~没有更多了~