Hi. Is there any way to explicitly define the TypeScript signature of an exported type? I want to ex...

# javascript

[Felix]

Hi.
Is there any way to explicitly define the TypeScript signature of an exported type? I want to expose tuples (e.g. Kotlin's Pair) as Javascript arrays. However I would like the TypeScript signature to reflect the original tuple types.
E.g.
Expose Pair<Int, String> as an Array, however have the TypeScript type be [number, string]

[turansky]

Direct analog of TS tuple for 2 - JsTuple2 .
To construct it you can use tupleOf factory function.

[Felix]

Thanks.
However I'm getting the following warning

Exported declaration uses non-exportable return type: JsTuple2<Any, Any>

I assumed that JsTuple2<T,U> is exportable if T and U are exportable. Am I wrong in assuming this?

[Felix]

Here is the generated TypeScript

export declare function removed(...): any/* js.core.JsTuple2<any, any> */;

[turansky]

Root cause - now JsTuple2 is non-external
It will be possible to fix modifier in Kotlin 1.9 only (compiler fixes required)

[Felix]

Am I correct in thinking that it should be exportable, or am I missing something?

[turansky]

As I know external -> exportable

[turansky]

But it looks like postprocessing will be required

[turansky]

You will need additional aliases in file, like:
type JsTuple2<A, B> = [A, B]