prefer_asserts_with_message

Prefer asserts with message.

此规则自 Dart 2.3 版本起可用。

When assertions fail it's not always simple to understand why. Adding a message to the assert helps the developer to understand why the AssertionError occurs.

BAD:

f(a) {
  assert(a != null);
}

class A {
  A(a) : assert(a != null);
}

GOOD:

f(a) {
  assert(a != null, 'a must not be null');
}

class A {
  A(a) : assert(a != null, 'a must not be null');
}

要启用 prefer_asserts_with_message 规则，请在你的 analysis_options.yaml 文件中，在 linter > rules 下添加 prefer_asserts_with_message ：

linter:
  rules:
    - prefer_asserts_with_message

除非另有说明，否则本网站上的文档反映的是 Dart 3.6.0。页面最后更新于 2025-02-05。 查看源代码 或 报告问题.