[api-extractor] global declaration is getting deleted

[slavafomin]

Summary

Hello!

I'm working on a polyfill and I have the following global declaration in my src/index.ts:

declare global {
  interface JSON {
    parse<Type = any>(text: string, reviver?: ReviverFunc): Type;
  }
}

It augments the JSON interface by extending the parse function signature. This declaration is getting effectively emitted to the index.d.ts generated by tsc. However, the API Extractor removes it from the resulting index.d.ts for some reason.

Repro steps

Expected result:

The declare global declaration should be added to the resulting index.d.ts file.

Actual result:

The declare global declaration is not added to the resulting index.d.ts file.

Details

Standard questions

Please answer these questions to help us investigate your issue more quickly:

Question	Answer
@microsoft/api-extractor version?	7.33.7
Operating system?	Ubuntu Linux
API Extractor scenario?	rollups (.d.ts)
Would you consider contributing a PR?	No
TypeScript compiler version?	4.9.4
Node.js version (node -v)?	18.12.1

[alSergey]

Hi, I have a similar problem. Are there any solutions?

[alSergey]

@slavafomin hi, did you find any solution to this problem?

[niedzielski]

Possible dup of #1709.