Mixins Overrides Drop Documentation

[LukeAbby]

🔎 Search Terms

mixins overrides, documentation dropped

🕗 Version & Regression Information

• This is the behavior in every version I tried, and I reviewed the FAQ for entries about documentation, mixins, etc.

⏯ Playground Link

https://www.typescriptlang.org/play/?ts=5.7.2#code/CYUwxgNghgTiAEkoGdnwEIpAYWq+A3gFDynwD0AVJfMgPYC2CwdYArkwHYAuU3AlnU7xK5EmWS8BYeE24ALOsAAUASgBc8ThwBGIGAG4iAXyJFuATwAOCAIKcL2IZJhsw3OjHgBeeFB0uUO5aIADu8MoAdNGwAObImlAOANoAuqo+AHzwdDoAVuDcZgBmbJzugsIAsvwAHgA8ACrwILXcIJzAaPaOztyu7p6ZypjIOHgJ8I0ZxKT+gcFI+DW1-Jy4KGit7Z1oo+ObhOKkYH0DHjBRMTDxiSnpR2QSbDaX0ZFxyKpGT6akpuI4Nw2DBqnU1htUEYAeRyPAAPJeBieBDIfgMKwQCzwCx0NiIJLwUIwfjtdREWGICbwFYQ6kEUyU0BIODwUrlARCGl1JotNodLrwHpOTguNwXYb7SGTaaaSw2OjFbmrdbUgBkUyMRGZ0FZSzQKxAwD5O0FKxGWGlM3Ekj4-BkckUKg0Wl0+mhZkNwEijqURkpZAAevAAHJ0eAsdhcKSVSJAA

💻 Code

declare class BaseClass {
    /** some documentation */
    static method(): number;
}

type AnyConstructor = abstract new (...args: any[]) => object

function Mix<T extends AnyConstructor>(BaseClass: T) {
  abstract class MixinClass extends BaseClass {
    constructor(...args: any[]) {
      super(...args);
    }
  }

  return MixinClass;
}

// Or more simply you can write:
class MixinClass {}
declare function Mix<T extends AnyConstructor>(BaseClass: T): typeof MixinClass & T;

declare class Mixed extends Mix(BaseClass) {
  static method(): number;
}

Mixed.method;
//    ^ No documentation.

🙁 Actual behavior

Overrides of a mixin class does not have documentation.

Notably if you don't override the method the documentation does show up. This shows it's possible to get it.

🙂 Expected behavior

It should inherit documentation.

Additional information about the issue

No response