"Never nullish" checks miss "never nullish" through pareans

[jakebailey]

🔎 Search Terms

never nullish parenthesis

🕗 Version & Regression Information

• This changed between versions 5.8 and 5.9

⏯ Playground Link

https://www.typescriptlang.org/play/?#code/MYewdgzgLgBAHgLhgbxgTydATgSzAcxgB8YBXMAEwFMAzPKimAX2LMtvsYF43q6wGMAIYRhYNAG4AsAChZs0JFg0QIGDzgB+AHRoYmzTAAGqgA4Qj+wwCJr0mYugwARkKzqYACi26rxsxYAlH629grgECAANlTaUSD4nioggfaO0bHxia5YqUA

💻 Code

const x: { y: string | undefined } | undefined = undefined as any;


const foo = x?.y ?? `oops` ?? "";
const bar = (x?.y ?? `oops`) ?? "";

console.log(foo);
console.log(bar);

🙁 Actual behavior

Error on foo's expression, no error on bar's.

🙂 Expected behavior

Error on both; both expressions are guaranteed to be "oops".

Additional information about the issue

No response