[Webkit-unassigned] [Bug 271241] New: Async function parameter destructuring results in "Right side of assignment cannot be destructured"

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=271241

            Bug ID: 271241
           Summary: Async function parameter destructuring results in
                    "Right side of assignment cannot be destructured"
           Product: WebKit
           Version: Safari 17
          Hardware: Mac (Apple Silicon)
                OS: macOS 14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: csongor.szilagyi at appfire.com

Created attachment 470435

  --> https://bugs.webkit.org/attachment.cgi?id=470435&action=review

A short html snippet to reproduce the issue

Consider the following code: 

async function async_test(prop1) {
    var {prop1, prop2} = prop1;
    console.log(prop1)
  }

async_test({prop1: 'async_param', prop2: 2});

## Expected output: "async_param"
## Actual output: Unhandled Promise Rejection: TypeError: Right side of assignment cannot be destructured

Additional note: The same scenario works as expected in a non async context.

Expected output can be reproduced in Chrome, Firefox, Edge

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