Missing `undefined` for hover

[Withered-Flower-0422]

🔎 Search Terms

hover

🕗 Version & Regression Information

• typescript version: 5.9.3 - 6.0.1rc
• editor: vs code

⏯ Playground Link

No response

💻 Code

type X = {
    a?: A
    b?: A
    c?: A
}
type A = {}

🙁 Actual behavior

When hover on X, it shows:

type X = {
    a?: A | undefined;
    b?: A;
    c?: A;
}

🙂 Expected behavior

It's expected to show:

type X = {
    a?: A | undefined;
    b?: A | undefined;
    c?: A | undefined;
}

Additional information about the issue

Of course option exactOptionalPropertyTypes set to false.

And tsgo version works well (though there's no line break format yet):

type X = { a?: A | undefined; b?: A | undefined; c?: A | undefined; }

[ace-tk]

Can u please review the fixes i made.

[AlejandroGispert]

Hi @Withered-Flower-0422, if this issue is still open, I would be happy to take a look and work on a fix.

[Withered-Flower-0422]

I think the fixes @ace-tk made should work.

[RyanCavanaugh]

We're not taking cosmetic fixes for 6.0 at this point, see #62827 / #62963. Please log an issue in the typescript-go repo if this repros in TS 7 preview