type only exports of classes are not respected

[brc-dd]

Checklist

• I can reproduce this issue when running this plugin on its own.
  Other plugins, such as node-resolve are known to cause issues.
• I am running this plugin on .d.ts files generated by TypeScript.
  The plugin can consume .ts and even .js files (with allowJs: true), but this is known to cause issues.
• This issue is not related to rolling up @types.
  The plugin ignores these by default, unless respectExternal is set. @types can contain hand-crafted code which is known to cause issues.

Code Snippet

declare class Foo {
  bar: string;
}

export type { Foo };

Actual Output

declare class Foo {
  bar: string;
}
export { Foo };

Expected Output

declare class Foo {
  bar: string;
}
export type { Foo };

Additional Context

It works if I alias my class as a type instead:

declare class _Foo {
  bar: string;
}

type Foo = _Foo;

export type { Foo };

Output

declare class _Foo {
  bar: string;
}
type Foo = _Foo;
export type { Foo };

[GeekyEggo]

Hey @brc-dd, did you ever find a solution to this issue?

[brc-dd]

Ah, no. I was debugging it but it didn't pan out. I end up just patching the types package that was breaking stuff for me.

[GeekyEggo]

Ah, no. I was debugging it but it didn't pan out. I end up just patching the types package that was breaking stuff for me.

No sweat, that was my first thought too, leveraging something like ts-morph. I'm also debating outputting the raw DTS files from TSC, and then updating the current rollup'd DTS file to export * from there as they're correct. Appreciate your quick response.