lint ts report Cannot read property 'body' of null

Tell us about your environment

• ESLint Version: 5.15.0
• Node Version: 8.11.0
• npm Version: 5.6.0

What parser (default, Babel-ESLint, etc.) are you using? @typescript-eslint/parser Please show your full configuration:

module.exports = {
  extends: [
    'react-app',
    'plugin:@typescript-eslint/recommended',
    'prettier/@typescript-eslint',
  ],
  rules: {
    strict: [0],
    'no-sequences': [0],
    'no-mixed-operators': [0],
    'react/react-in-jsx-scope': [0],
    'no-useless-escape': [0],
  },
};

Configuration

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

// AvatarItem.d.ts
import * as React from 'react';
export interface IAvatarItemProps {
  tips: React.ReactNode;
  src: string;
  style?: React.CSSProperties;
}

export default class AvatarItem extends React.Component<IAvatarItemProps, any> {
  constructor(props: IAvatarItemProps);
}

npx eslint --ext=ts AvatarItem.d.ts

What did you expect to happen? lint result

What actually happened? Please include the actual, raw output from ESLint.

Cannot read property 'body' of null

I have located the error location where in the no-useless-constructor.js, line 169

function checkForConstructor(node) {
            if (node.kind !== "constructor") {
                return;
            }

            const body = node.value.body.body;  // <---- here
            const ctorParams = node.value.params;
            const superClass = node.parent.parent.superClass;

Is there have a bug or our wrong code?

Are you willing to submit a pull request to fix this bug?

[paulmelnikow]

I wanted to note to others reading this that the related issue is typescript-eslint/typescript-eslint#420.

[platinumazure]

@ljharb Maybe, but this discussion should take place on the typescript-eslint project. Please file an issue there. Thanks!