JSDoc `@override` on an `@overload` signature is ignored under `noImplicitOverride` (TS4119)

[jwbth]

🔎 Search Terms

noImplicitOverride, JSDoc @overload, @override, TS4119, checkJs

🕗 Version & Regression Information

• This changed between versions 6.0.3 and 7.0.2 (still present in 7.1.0-dev.20260929.1)

⏯ Playground Link

No response

💻 Code

// jsconfig.json
{
  "compilerOptions": {
    "allowJs": true,
    "checkJs": true,
    "noEmit": true,
    "strict": true,
    "noImplicitOverride": true
  },
  "include": ["*.js"]
}

// a.js
class Base {
  /**
   * @param {string} x
   * @returns {string}
   */
  f(x) {
    return x
  }
}

class Derived extends Base {
  /**
   * @override
   * @overload
   * @param {'a'} x
   * @returns {'a'}
   */
  /**
   * @override
   * @param {string} x
   * @returns {string}
   */
  f(x) {
    return x
  }
}

export {}

🙁 Actual behavior

a.js(14,7): error TS4119: This member must have a JSDoc comment with an '@override' tag because it overrides a member in the base class 'Base'.

🙂 Expected behavior

No error, as in 6.0.3. The overload signature has an @override tag.

Additional information about the issue

Possibly related: microsoft/typescript-go#4044 (JSDoc @override not mapped to the override modifier in declaration emit; fixed), which suggests the overload path wasn't covered.