Dart有一个“断点”语句吗？ [英] Does Dart have a 'breakpoint' statement?

问题描述

在Dart中有一个语句使调试器在调试时不设置断点而暂停？

Is there a statement in Dart to make the debugger halt without setting a breakpoint while debugging?

有些情况下， 。我遇到这个例如简化远程调试，以确保执行停止提前，然后我可以使用调试器添加更多的断点。

There are situations where it would be helpful be able to hardcode a breakpoint. I run into this for example to simplify remote debugging, to ensure the execution stops early and then I can add further breakpoints using the debugger.

推荐答案

刚刚介绍了
（Dart VM version：1.11.0-edge.131775（Tue Jun 2 14:25:22 2015）onlinux_x64）

This was just introduced (Dart VM version: 1.11.0-edge.131775 (Tue Jun 2 14:25:22 2015) on "linux_x64")

import 'dart:developer'; 

void main() {
  debugger(); 
  // or
  debugger(msg: 'because I say so');
}

还有一个条件变式

// Debugger.breakHereIf(bool expr); // current
debugger(when: somethingIsTrue, msg: 'investigate'); // later

另请参阅 Dartium中的断点不工作如何使用Dartiums调试器。

See also Breakpoints in Dartium not working for how to use Dartiums debugger.

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