Crash when `IntrinsicElements extends Record<string, any>`

[kgtkr]

TypeScript Version: 3.7.x-dev.201xxxxx

Search Terms:

• jsx
• tsx
• Record
• extends
• IntrinsicElements

Code

/* @jsx D.createElement */

import * as D from "./d";

<a />;

// d.ts
export declare namespace JSX {
  interface IntrinsicElements extends Record<string, any> {}
}

// A *self-contained* demonstration of the problem follows...
// Test this by running `tsc` on the command-line, rather than through another build tool such as Gulp, Webpack, etc.

Actual behavior:

Cannot read property 'type' of undefined.

Playground Link:

Related Issues:

[sandersn]

I can't repro this. Does it still crash with typescript@next ? What does your tsconfig look like?

[kgtkr]

https://github.com/kgtkr/tsx-bug

[sandersn]

Thanks, that's perfect.

This has crashed since 2.8, and before that failed to compile with "Can't find name 'React'.".

[kgtkr]

jsx pragma can only be used after TS2.8