[Webkit-unassigned] [Bug 247789] New: new-target Syntax Error

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=247789

            Bug ID: 247789
           Summary: new-target Syntax Error
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: p51lee at kaist.ac.kr

// input.js
class x { static { if ( 0 ?. [ { [ Symbol . toPrimitive ] : x => super [ new . target ( ) ] } ] ** 0 ) ; } }
_____________________________________________________________________________________________________________

Hello,

Executing the input.js using JSC throws SyntaxError, but TypeError is expected.

Running the input.js with JSC results in:

---
$ jsc input.js
Exception: SyntaxError: new.target is not valid inside arrow functions in global code.
at input.js:1
---

while other engines behave like:

---
# V8 (used console.log)
$ node input.js
input.js:1
class x { static { if ( 0 ?. [ { [ Symbol . toPrimitive ] : x => super [ new . target ( ) ] } ] ** 0 ) ; } }
                                                                               ^

TypeError: .new.target is not a function
...

Node.js v18.11.0

# GraalJS
$ js input.js
TypeError: <new.target> is not a function
        at <js> :=>(input.js:1:73-88)
        at <js> :initializer(input.js:1:24-94)
        at <js> :program(input.js:1:0-107)
---


WebKit version: 615.1.10

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