the way I've solved that a while ago (
https://code.google.com/p/formaldehyde/source/browse/trunk/formaldehyde.js )
`(ServerError.prototype = new Error).name = "ServerError";`
Today I would do
```javascript
function ServerError(message) {
this.message = '' + message;
}
ServerError.prototype = Object.setPrototypeOf({
name: ServerError.name
}, Error.prototype);
```
Cheers
On Sat, Nov 23, 2013 at 10:41 AM, Domenic Denicola <
dome...@domenicdenicola.com> wrote:
> +1 to making this work seamlessly, if possible. But I am not sure it is
> possible...
>
> From: es-discuss [mailto:es-discuss-boun...@mozilla.org] On Behalf Of
> Kevin Smith
>
> > I could, of course, do this manually:
> >
> > class ZenError extends Error {
> > constructor(msg) { super(msg); this.name = this.constructor.name;
> }
> > }
>
> Actually, this isn't even "correct" by ES spec standards---illustrating
> how error-prone this kind of manual setup is. That is, the error types in
> ES have `.prototype.name` properties on the constructor, not own `.name`
> properties. So the correct manual setup is
>
> ```js
> class ZenError extends Error {
> }
> ZenError.prototype.name = ZenError.name;
> ```
>
> The only way I can think of to fix this is to change the `
> Error.prototype.name` property to a getter that returns `
> this.constructor.name`. But now all existing code that does *not* set
> `name` correctly has suddenly had its meaning, and observable side effects,
> changed. Seems unlikely to be web compatible. (Plus you have to create a
> setter and handle the cases when people *do* set it to something.)
>
> You then start thinking, well, maybe we should make a simple opt-in to the
> more correct behavior. But, can you really make it more simple than `
> ZenError.prototype.name = ZenError.name`? I guess
> `Error.fixSubclassName(ZenError)` is a bit more DRY, but not by much.
>
> Would be curious if anyone has any solutions, but I'm not sure there are
> any :(. 100% correct Error subclassing might have to remain a mistake-prone
> process.
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>
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