dart - 断言未通过pub serve执行

Question

以下代码无法执行:

assert((){ print('hi'); });

终端日志:

pub serve
Loading source assets... 
Loading angular2 and dart_to_js_script_rewriter transformers... 
Serving checkoutFrontEduzz web on http://localhost:8080
Build completed successfully
[web] GET Served 11 cached assets.
[web] GET Served 634 cached assets.
[web] GET Served 2 cached assets.
[web] GET assets/css/hotsite.component.css.map → (cached) checkoutFrontEduzz|web/assets/css/hotsite.component.css.map

我的发布规范:

transformers:
- angular2:
    platform_directives:
    - 'package:angular2/common.dart#COMMON_DIRECTIVES'
    - 'package:angular2/common.dart#FORM_DIRECTIVES'
    platform_pipes:
    - 'package:angular2/common.dart#COMMON_PIPES'
    entry_points: web/main.dart
    resolved_identifiers:
        BrowserClient: 'package:http/browser_client.dart'
        Client: 'package:http/http.dart'
- dart_to_js_script_rewriter

Chrome 和with的睾丸。

Answer 1

要在Dartium中获取断言错误，您需要确保其在启用检查模式的情况下运行

DART_FLAGS='--checked' path/chrome

另请参阅 https://webdev.dartlang.org/tools/dartium
pub serve会产生生产输出，因为据我所知，调试输出的运行速度太慢，因此，您的预期行为是您不会在Chrome中看到错误。您需要运行 pub build --mode="debug"并在Chrome中加载输出以获取错误。