Import star should work with export type

Search Terms

import star export type

Suggestion

See the code below.

Use Cases

See the code below.

Examples

// a.ts
const a = 1
export type { a } // expected to be used as type only, user case: sharing type rather than value between source code between nodejs and browser

const b = 1
export type { b }

// export other types

// c.ts
import * as c from './a' // to avoid: import { a as a1, b as b1 } from './a'

declare const a: typeof c.a
declare const b: typeof c.b

Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

No source files, tests, or compiler entry points are named. Start by reproducing the a.ts and c.ts example with the TypeScript compiler and inspect how export type declarations and namespace imports are handled. Done means the type-only exports are available through the import-star namespace without changing emitted JavaScript.