dart - 如何在 Flutter 中测试/调试摇树？

Question

Flutter 自带 tree-shaking 编译。仅包括使用的代码。

但这很容易在不经意间破坏。

有什么方法可以测试和调试摇树？

标签： dartflutter

Answer 1

For debugging, it is possible to connect to the Observatory in profile mode. Then inspect the content of desired dart file

You won't see the actual sources in profile mode; but you'll see an overview of what is inside the file, including the defined classes and their methods.

For example, a widget such a the following:

class Home extends StatelessWidget {
  _unused() {
    print('home');
  }

  @override
  Widget build(BuildContext context) {
    return Container();
  }
}

when inspected in the Observatory in profile mode; _unused method will not be in the function list: