[jsdoc/require-jsdoc] : 'FunctionDeclaration' = arrow functions ignored

[RichardFevrier]

Expected behavior

When using the rule jsdoc/require-jsdoc with require with FunctionDeclaration set to true, the plugin should trigger an error on arrow functions declarations.

Actual behavior

Arrow functions declarations are ignored.

ESLint Config

module.exports = {
  root: true,
  globals: {
    'console': false
  },
  parser: "babel-eslint",
  extends: ['eslint:recommended', 'plugin:jsdoc/recommended'],
  rules: {
    'jsdoc/require-jsdoc': ['error', {
      require: {
        ArrowFunctionExpression: true,
        ClassDeclaration: false,
        ClassExpression: true,
        FunctionDeclaration: true, // <- should not ignore arrow functions
        FunctionExpression: true,
        MethodDefinition: true
      }
    }],
  },
};

ESLint sample

class Test {
  aFunc = () => {} // not detected
  anotherFunc() {} // detected
}

CLI sample

eslint myfile.js

Environment

• Node version: 12.16.3
• ESLint version: 6.8.0
• eslint-plugin-jsdoc version: 30.0.0

[gajus]

🎉 This issue has been resolved in version 30.0.2 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[brettz9]

Thanks for the helpful reports!

There was missing support here (now fixed), but I might mention ArrowFunctionExpression is what you can use (FunctionDeclaration does not apply here with the case of ClassProperty). See https://astexplorer.net/ after setting the parser to explore the AST. Also, if you want fine-tuned control (e.g., checking arrow functions within ClassProperty only or such), you can use contexts. See the README for more.

[RichardFevrier]

Thank you for your answer 🙂

And for the tips with https://astexplorer.net/
I effectively didn't know if it was ArrowFunctionExpression or FunctionDeclaration which would be triggered in that case.