unnecessary_breaks

Don't use explicit breaks when a break is implied.

此规则自 Dart 3.0 版本起可用。

此规则提供 快速修复 。

Only use a break in a non-empty switch case statement if you need to break before the end of the case body. Dart does not support fallthrough execution for non-empty cases, so breaks at the end of non-empty switch case statements are unnecessary.

BAD:

switch (1) {
  case 1:
    print("one");
    break;
  case 2:
    print("two");
    break;
}

GOOD:

switch (1) {
  case 1:
    print("one");
  case 2:
    print("two");
}

switch (1) {
  case 1:
  case 2:
    print("one or two");
}

switch (1) {
  case 1:
    break;
  case 2:
    print("just two");
}

NOTE: This lint only reports unnecessary breaks in libraries with a language version of 3.0 or greater. Explicit breaks are still required in Dart 2.19 and below.

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

linter:
  rules:
    - unnecessary_breaks

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.