Combining jsdoc `@this` and `@param` yields invalid `.d.ts` file

[remcohaszing]

Bug Report

When combining the JSDoc tags @this and @param, TypeScript yields invalid type definitions.

🔎 Search Terms

jsdoc this constructor

🕗 Version & Regression Information

• Behaviour was wrong in 4.5.
• Behaviour changed in 4.6, but is also wrong. This behaviour still exists in 5.2.0-dev.20230729.

⏯ Playground Link

Playground link with relevant code

💻 Code

/**
 * @typedef Person
 * @property {string} name
 */

/**
 * @this {Person}
 * @param {string} name
 */
export default function fn(name) {
 this.name = name
}

🙁 Actual behavior

/**
 * @typedef Person
 * @property {string} name
 */
/**
 * @this {Person}
 * @param {string} name
 */
export default function fn(this: Person, name: string): void;
export default class fn {
 /**
 * @typedef Person
 * @property {string} name
 */
 /**
 * @this {Person}
 * @param {string} name
 */
 constructor(this: Person, name: string);
 // ^^^^^^^^^^^^ This is not valid TypeScript
 name: string;
}
export type Person = {
 name: string;
};

TypeScript 4.5 and before (also wrong):

/**
 * @typedef Person
 * @property {string} name
 */
/**
 * @this {Person}
 * @param {string} name
 */
export default function fn(name: string): void;
// ^^ Missing this
export default class fn {
 /**
 * @typedef Person
 * @property {string} name
 */
 /**
 * @this {Person}
 * @param {string} name
 */
 constructor(name: string);
 name: string;
}
export type Person = {
 name: string;
};

🙂 Expected behavior

I would expect the class to not be generated. The generated class definition is the part that is invalid, and also if this function was written in TypeScript, the class would not be generated.

/**
 * @typedef Person
 * @property {string} name
 */
/**
 * @this {Person}
 * @param {string} name
 */
export default function fn(this: Person, name: string): void;
export type Person = {
 name: string;
};