implicit_reopen

Don't implicitly reopen classes.

This rule is currently experimental and available as of Dart 3.0.

This rule has a quick fix available.

Using an interface, base, final, or sealed modifier on a class, or a base modifier on a mixin, authors can control whether classes and mixins allow being implemented, extended, and/or mixed in from outside of the library where they're defined. In some cases, it's possible for an author to inadvertently relax these controls and implicitly "reopen" a class. (A similar reopening cannot occur with a mixin.)

This lint guards against unintentionally reopening a class by requiring such cases to be made explicit with the @reopen annotation in package:meta.

BAD:

interface class I {}

class C extends I {} // LINT

GOOD:

interface class I {}

final class C extends I {}

import 'package:meta/meta.dart';

interface class I {}

@reopen
class C extends I {}

To enable the implicit_reopen rule, add implicit_reopen under linter > rules in your analysis_options.yaml file:

linter:
  rules:
    - implicit_reopen

除非另有说明，文档之所提及适用于 Dart 3.6.0 版本，本页面最后更新时间: 2024-08-02。 查看文档源码 或者 报告页面问题。