Prettier misplaces JSDoc of paren-wrapped Function Expressions! #5850
Description
Prettier 1.16.4
Playground link
--no-bracket-spacing
--jsx-bracket-same-line
--parser typescript
--print-width 120
--single-quote
--trailing-comma all
--use-tabsInput:
Broken: {
// [X] Wrap IIFE function expression in parens
// [ ] Keep JSDoc with function expression in parens
/** @type {Helpers} */
const helpers = (
/** @param {Partial<Helpers>} helpers */
(helpers = {}) => helpers
)();
}
Hack1: {
// [X] Unwrap function expression in parens inside lists
// [X] Keep comment blocks inside lists
/** @type {Helpers} */
const helpers = (
void '',
// TODO: await prettier fix
(
/** @param {Partial<Helpers>} helpers */
(helpers = {}) => helpers
)
)();
}
Hack2: {
// [X] Keep comment blocks inside lists
/** @type {Helpers} */
const helpers = [
// TODO: await prettier fix
/** @param {Partial<Helpers>} helpers */
(helpers = {}) => helpers
][0]();
}Output:
Broken: {
// [X] Wrap IIFE function expression in parens
// [ ] Keep JSDoc with function expression in parens
/** @type {Helpers} */
const helpers = /** @param {Partial<Helpers>} helpers */
((helpers = {}) => helpers)();
}
Hack1: {
// [X] Unwrap function expression in parens inside lists
// [X] Keep comment blocks inside lists
/** @type {Helpers} */
const helpers = (void '',
// TODO: await prettier fix
/** @param {Partial<Helpers>} helpers */
(helpers = {}) => helpers)();
}
Hack2: {
// [X] Keep comment blocks inside lists
/** @type {Helpers} */
const helpers = [
// TODO: await prettier fix
/** @param {Partial<Helpers>} helpers */
(helpers = {}) => helpers,
][0]();
}Expected behavior:
-
Wrap IIFE function expression in parens:
`const ƒ = () => {}()` -> `const ƒ = (() => {})()` -
Keep JSDoc with function expression in parens:
`const ƒ = /** … */() => {}()` -> `const ƒ = (/** … */() => {})()`