[Webkit-unassigned] [Bug 236843] New: ReferenceError when using extra parens in class fields

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236843

            Bug ID: 236843
           Summary: ReferenceError when using extra parens in class fields
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Mac (Intel)
                OS: macOS 11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mitchell.liam at gmail.com

Created attachment 452527

  --> https://bugs.webkit.org/attachment.cgi?id=452527&action=review

Two reproducible examples

Extra params inside class field declarations cause ReferenceErrors.

Example 1:

;(() => {
  const a = (x) => x

  class B {
    c = a(('OK'));
  }

  // Should write 'OK'
  document.write(new B().c)
})()

Throws ReferenceError: Can't find variable: a

Example 2:

;(() => {
  const a = 'OK'

  class B {
    static c = {
      d: a,
      e: (1),
    }
  }

  // Should write 'OK'
  document.write(B.c.d)
})()

Throws ReferenceError: Can't find variable: a

Tested on Safari TP 15.4, Safari 15.2, 15.3, iOS 14.5, 15.0

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20220218/a11ec4bb/attachment.htm>