TypeScript: Unable to type class constructor with destructured params

[warent]

• VSCode Version: 1.12.0
• OS Version: OS X 10.12.4

Steps to Reproduce:

//@ts-check

class Thing {

  /**
   * @param {Object} obj
   * @param {string} obj.param
   */
  constructor({ param }) {

  }

}

//@ts-check

class Thing {

  /**
   * @param {string} param
   */
  constructor({ param }) {

  }

}

The param: string typing is not enforced or hinted

[mjbvz]

TypeScript currently does not support the JSDoc params with properties syntax. We are tracking this here: microsoft/TypeScript#11597

One workaround is to use object literal syntax:

//@ts-check

class Thing {

  /**
   * @param {{param: string}} obj
   */
  constructor(obj) {

  }
}

new Thing({param: 3 })

This will correctly enforce the type of param

Closing as upstream