[Webkit-unassigned] [Bug 169040] Class Proxy can't be extended
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sun Apr 16 12:03:10 PDT 2017
https://bugs.webkit.org/show_bug.cgi?id=169040
--- Comment #2 from GSkachkov <gskachkov at gmail.com> ---
I upload the patch, but I think it can be fixed in better way.
```
class SuperClass {
constructor() { }
}
let ProxiedSuperClass = new Proxy(SuperClass, {});
class A extends ProxiedSuperClass {
constructor() {
super();
}
}
const a = new A;
```
Issue happens because during initializing A class var ProxiedSuperClass stored to __proto__ variable of the A class, but during invoking super it takes __proto__ from the prototype the class A and it is the same as ProxiedSuperClass.__proto__ but it is not allowed to execute 'new ProxiedSuperClass.__proto__'
To fix issue I stored ProxiedSuperClass to private variable and load it before execute 'super'.
Could you please suggest if there any better to fix this issue?
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