[Webkit-unassigned] [Bug 145155] ES6 classes: Subclassing arrays doesn't work

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=145155

Richard Connamacher <richardconnamacher at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |richardconnamacher at gmail.co
                   |                            |m

--- Comment #1 from Richard Connamacher <richardconnamacher at gmail.com> ---
WebKit isn't setting the right prototype chain when instantiating an Array subclass. Because of this, the following workaround restores the correct behavior in the WebKit nightly:

var MyArray = class MyArray extends Array {
    constructor() {
        super(...arguments);
        Object.setPrototypeOf(this, new.target.prototype);
    }

    myMethod() {}
};

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