Destructuring of `unknown` catch variable is not an error

[frigus02]

Bug Report

🔎 Search Terms

catch, destructure, destructuring, useUnknownInCatchVariables

🕗 Version & Regression Information

• This is the behavior in every version I tried: v4.0.5, v4.5.4

⏯ Playground Link

Playground link with relevant code

💻 Code

let a: unknown;
let {foo} = a;
// ^^^ Property 'foo' does not exist on type 'unknown'.(2339)

function bar({foo}: unknown) {}
// ^^^ Property 'foo' does not exist on type 'unknown'.(2339)

try {
} catch ({foo}: unknown) {
 // foo is type any
 // with useUnknownInCatchVariables foo is type unknown
}

🙁 Actual behavior

Destructuring unknown is an error, but destructuring a catch variable, which is of type unknown is not an error.

🙂 Expected behavior

I would expect destructuring of a catch variable of type unknown to produce an error.

[lvelden]

If the type annotation is any, the property type seems also wrong with --useUnknownInCatchVariables:

try {
} catch ({foo}: any) {
 // foo is type any
 // with useUnknownInCatchVariables foo is type unknown
}

[Playground link]

Expected behavior

Property type of destructured any type is also any.