Support class auto import with its type

[otomad]

Clear and concise description of the problem

If declare and export a class.

export default class Foo {

}

While directly use it for construct a new instance. Yeah it works properly.

const foo = new Foo();

However if use this class for type hint, TypeScript will not recognize it.

const foo: Foo = new Foo();
           ^^^

function myFunc(foo: Foo) {
                     ^^^
}

Error: 'Foo' refers to a value, but is being used as a type here. Did you mean 'typeof Foo'?

typeof Foo will be the type of Foo's constructor, that is new () => Foo, like StringConstructor of String;

You have to import that class explicitly, then it will work.

import type Foo from "../classes/Foo";

Suggested solution

Do not use typeof import(xxx) in the auto-imports.d.ts, use export xxx from instead. Just like it in latest Nuxt auto import method.

const Foo: typeof import('../classes/Foo')['default'];

change to

export Foo from '../classes/Foo';

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guide.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[ZiFy]

我也遇到了相同的问题，现在有解决方案吗？
I ran into the same problem, is there a solution now?

[hf-xz]

My solution using InstanceType:

// Api.ts
export class Api {
  ...
}

// auto-imports.d.ts
declare global {
  ...
  const Api: typeof import('./src/apis/Api')['Api']
}

// other file
let someApi: InstanceType<typeof Api> = new Api()

// or
type ApiType = InstanceType<typeof Api>
let someApi: ApiType = new Api()
function myFunc(api: ApiType) {
  ...
}

[tohere]

我也有这个问题, 当我使用导入 threejs 中的部分类的时候会报这个错, 如果不加 type, 那就是导入的类, 如果加上 type, 那就是导入的类型, 希望能有个参数控制两者都能使用

 AutoImport({
	imports: [
		{
	      from: 'three',
	      imports: ['Group'],
		 // type: true
	    }
	]
} )