目录

control_flow_in_finally

目录

Avoid control flow in finally blocks.

此规则自 Dart 2.0 版本起可用。

_规则集：recommended , flutter _

详情

#

AVOID control flow leaving finally blocks.

Using control flow in finally blocks will inevitably cause unexpected behavior that is hard to debug.

BAD:

dart
class BadReturn {
  double nonCompliantMethod() {
    try {
      return 1 / 0;
    } catch (e) {
      print(e);
    } finally {
      return 1.0; // LINT
    }
  }
}

BAD:

dart
class BadContinue {
  double nonCompliantMethod() {
    for (var o in [1, 2]) {
      try {
        print(o / 0);
      } catch (e) {
        print(e);
      } finally {
        continue; // LINT
      }
    }
    return 1.0;
  }
}

BAD:

dart
class BadBreak {
  double nonCompliantMethod() {
    for (var o in [1, 2]) {
      try {
        print(o / 0);
      } catch (e) {
        print(e);
      } finally {
        break; // LINT
      }
    }
    return 1.0;
  }
}

GOOD:

dart
class Ok {
  double compliantMethod() {
    var i = 5;
    try {
      i = 1 / 0;
    } catch (e) {
      print(e); // OK
    }
    return i;
  }
}

使用方法

#

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

analysis_options.yaml
yaml
linter:
  rules:
    - control_flow_in_finally

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