[Webkit-unassigned] [Bug 188874] New: Function object should convert params to string before throw a parsing error

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=188874

            Bug ID: 188874
           Summary: Function object should convert params to string before
                    throw a parsing error
           Product: WebKit
           Version: Safari 11
          Hardware: Unspecified
                OS: macOS 10.13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: srsj2 at cin.ufpe.br

Hi everyone,

I found out an inconsistency in JSC when we declare a Function Object with a special characters as params.

Version: 235121
O.S: MacOS High Sierra Version 10.13.6

step to reproduce:
assertThrowsValue(() => Function("@", { toString() { throw 42; } }), 42);

atual result: 
SyntaxError: Invalid character: '@'

expected result:
pass without failures

V8, Chakra and SpiderMonkey works as expected 

cinfuzz

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