Some Playwright types now reported as `any` after upgrading to 5.7.2

🔎 Search Terms

I manually scrolled through all issues reported since the release of 5.7.2.

🕗 Version & Regression Information

• This changed between versions 5.6.3 and 5.7.2

⏯ Playground Link

https://github.com/mrmckeb/pw-repro

💻 Code

Minimal repro available here:
https://github.com/mrmckeb/pw-repro

The Playwright team are also able to reproduce:
https://github.com/microsoft/playwright/issues/33763

The affected code (from the repro) is:

import { test as base, expect } from "@playwright/test";

const test = base.extend({
  // baseUrl, page, use are now `any`
  page: async ({ baseURL, page }, use) => {
    await page.goto(baseURL);
    await use(page);
  },
});

🙁 Actual behavior

Types that were previously available are now typed as any. JSDoc continues to work as expected.

🙂 Expected behavior

Types behave as they did in TypeScript 5.6.3.

Additional information about the issue

We found this issue when upgrading from 5.6.3 to 5.7.2. I couldn't find a related issue here, so raised it at the Playwright repo to at least verify that they could reproduce and that they didn't think it was an issue with their types.

The Playwright team also confirmed that they have 71 new errors across 41 files when moving to TypeScript 5.7.2.

Start with the minimal reproduction in the linked pw-repro repository and compare its behavior under TypeScript 5.6.3 and 5.7.2. Use the affected Playwright extension code as the focused case, then consult the linked Playwright issue and TypeScript regression behavior. Done means the affected values are no longer reported as any and the 5.7.2 type-checking errors are resolved.