Exported type not found

[Tarnadas]

When exporting a type and importing it in another file, it cannot be found.

// A.ts
export type A = int16;

let a: A = 0; // works

// B.ts
import { A } from 'A' // throws error: ERROR TS2305: Module './A' has no exported member 'A'.

[LiaoPeng]

It's alias type.
You can try this in B.ts
import 'A'
And 'A' represent file A.ts.

[Tarnadas]

This indeed works, but it isn't intended behavior I guess?

What if I have other exported things inside A.ts? I wouldn't want to write import { ... } from 'A'; import 'A';. If I now use type A, the TypeScript compiler also shows me an error, which is suboptimal.

[MaxGraey]

Actually best practice store all type definitions in "*.d.ts" file which allow include all this types in top level and via tsconfig

[dcodeIO]

Types are currently somewhat special in that these become program globals and do not follow import/export semantics as one might expect. Needs improvement.

[dcodeIO]

Closing in favor of #473, which is our tracking issue for similar related issues now.