[Webkit-unassigned] [Bug 142840] New: ES6 Classes: Extends should accept an expression without parenthesis

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=142840

            Bug ID: 142840
           Summary: ES6 Classes: Extends should accept an expression
                    without parenthesis
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joepeck at webkit.org
                CC: ggaren at apple.com, rniwa at webkit.org

* TEST:
var namespace = {};
namespace.A = class A { constructor() { console.log("a"); } };
namespace.B = class B extends namespace.A { constructor() { super(); console.log("b"); } };
new namespace.B();

* EXPECTED
Logs for "a" and "b"

* ACTUAL
SyntaxError: Unexpected token '.'. Expected opening '{' at the start of a class body.

* NOTES
- Workaround: "class B extends (namespace.A) { ... }"
- Works in Chrome 43. I don't know how to test Firefox with Classes.

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