[Webkit-unassigned] [Bug 205498] New: An issue of assignment expression

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=205498

            Bug ID: 205498
           Summary: An issue of assignment expression
           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: yaohouyou at stumail.nwu.edu.cn

According to ES10, the exception is described in static semantics and the exception should be thrown during parssing. I suspect it's a bug of javascriptCore.

## version
b96bf75
https://github.com/WebKit/webkit/commit/b96bf7590bc090fa8161cff1189255ca3319c94b

## command
webkit/WebKitBuild/Release/bin/jsc testcase.js

## testcase
var NISLFuzzingFunc = function(){
    var e,n;
    (e = n) = "object";
};

## output


## expected output
SyntaxError: Invalid left-hand side in assignment

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