Add decorator to mark class as concrete / instantiable
还没有人认领这个 Issue。
评估
调研方向
首先结合现有的 @final 装饰器以及针对 Pyright 和 Ty 所描述的抽象方法行为来审查该提案。定义具体类装饰器预期的类型检查语义，并确认对于包含抽象方法的类，错误会在类定义时报告，同时不会将该类设为 final。
由索引模型根据 Issue 内容生成。
描述
We have the @final decorator to mark a class as final, so that it cannot be subclassed. Typecheckers can then cue off of this to raise an error when there are unimplemented abstract methods (e.g. the Ty abstract-method-in-final-class rule).
Similarly, Pyright and Ty can flag errors when other code instantiates a class that has abstract methods.
However, I would find it very useful to be able to mark a class as concrete: it isn't final (someone might subclass it), but it is intended to be instantiable. This would allow the type checker to raise abstract method errors at the point of class definition, rather than elsewhere in the code where the class is instantiated. For classes that are instantiated directly, the error location isn't a huge problem; for classes that are primarily instantiated indirectly, however, it there is no guarantee that the code will include a direct instantiation of the class to raise an error.
- 主要语言
- Python
- 星标
- 1.8k
- 派生
- 302
- 平均合并
- 23 小时
- 30 天内合并 PR
- 8
贡献指南
这个仓库没有索引到贡献指南
从这里开始
- 先读完整个 Issue，再读项目的贡献指南。
- 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
- Fork 仓库，在一个分支上完成修改。
- 提交 Pull Request，并在描述里引用这个 Issue 编号。
python/typing 的其他 Issue
-
topic: typing spec
难度 2/5 1-3 小时 新手友好度 72/100
-
topic: typing spec
难度 2/5 1-3 小时 新手友好度 75/100
-
topic: documentation
难度 2/5 1-3 小时 新手友好度 76/100
-
topic: documentation
难度 2/5 1-3 小时 新手友好度 65/100
-
topic: conformance tests topic: typing spec
难度 3/5 1-2 天 新手友好度 72/100
相似的 Issue
-
bug
难度 2/5 1-3 小时 新手友好度 90/100
learningequality/ricecooker#747 ·
-
难度 2/5 1-3 小时 新手友好度 68/100
BSData/horus-heresy-3rd-edition#3171 ·
-
enhancement
难度 2/5 1-3 小时 新手友好度 72/100
-
难度 2/5 1-3 小时 新手友好度 76/100
run-llama/llama_index#23199 ·
-
难度 2/5 1-3 小时 新手友好度 84/100
KhronosGroup/glTF-Blender-IO#2769 ·