Incorrect 'TS9021: Extends clause can't contain an expression with --isolatedDeclarations.' when using emitIsolatedDts

[ericrafalovsky]

Describe the bug

swc appears to throw an incorrect "TS9021: Extends clause can't contain an expression with --isolatedDeclarations." error for the below code when using the experimental emitIsolatedDts feature.

Input code

import React from "react";

export class Component extends React.PureComponent<{}, {}> {

    render(): React.ReactNode {
        return <div>Hello world</div>;
    }
}

Config

{
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "tsx": true
    },
    "experimental": {
        "emitIsolatedDts": true
    }
  },
  "sourceMaps": true
}

Playground link (or link to the minimal reproduction)

https://play.swc.rs/?version=1.10.3&code=H4sIAAAAAAAAA0XLQQrCMBAF0H1O8elKQXRvQzZuXEkRL1CaEQppRiapFkLubhoL%2FsUwzH8zTi%2BWiDv1Q8RTeEIj6960StFSu8H1IeDCRXryUT8MaInkbfi9HbtZ6F%2BnfEDKBkkplEiBJLv9ecN13thSAdgiFGfx0HZ8mys5x%2FiwOKtP66GtLKv8BZn347CrAAAA&config=H4sIAAAAAAAAA1WMOQ6AMAwEe14RueYF1DQUPCIKLoI4LNtIQYi%2FY64Iut0Z7W6Fc9BLgMptFq2QZ0HO3Yisk%2FpkBHQllMCRFMrXqpxKecGL7LcATIQcR7Tp8Dk7zRi1kXnwil2t8hsXzwHIvHDA1lP2%2BwE5e0RDqwAAAA%3D%3D

SWC Info output

No response

Expected behavior

See TypeScript playground link where this code successfully compiles under --isolatedDeclarations

https://www.typescriptlang.org/play/?isolatedDeclarations=true#code/JYWwDg9gTgLgBAJQKYEMDG8BmUIjgIilQ3wG4AocpAD0ljjQBsUBnFuAYV0gDskeYAHgAqAPjg0Y-ACbtk6GADoACgFciXcBD4DBAbwC+AGjiHxeynCtwiPaUigAKAJQAuRMSXyMAOQj3TcmtgmyQYdR44QWlgADdRAAkkRkYIOAB3aEZpQQB6GPiKYINyAyA

Actual behavior

No response

Version

1.10.3

Additional context

No response

[swc-bot]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.