no_duplicate_case_values

Don't use more than one case with same value.

此规则自 Dart 2.0 版本起可用。

_规则集：core , recommended , flutter _

此规则提供 快速修复 。

DON'T use more than one case with same value.

This is usually a typo or changed value of constant.

BAD:

const int A = 1;
switch (v) {
  case 1:
  case 2:
  case A:
  case 2:
}

GOOD:

const int A = 1;
switch (v) {
  case A:
  case 2:
}

NOTE: this lint only reports duplicate cases in libraries opted in to Dart 2.19 and below. In Dart 3.0 and after, duplicate cases are reported as dead code by the analyzer.

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

linter:
  rules:
    - no_duplicate_case_values

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.