On Fri, Nov 27, 2020 at 2:46 PM Arve Knudsen <arve.knud...@gmail.com> wrote:

> I've noticed that errors.Is returns false if you compare two error instances 
> that are implemented as pointers. I.e., I'm using a struct where the Error 
> method has a pointer receiver, and when passing struct instance pointers to 
> errors.Is, it ends up comparing them by pointer address. Please see my 
> example to see what I mean.
>
> Is this a bug in errors.Is or is it actually supposed to work this way? It 
> really took us by surprise, and we ended up having to use errors.As instead 
> since it does handle this case.
>
> For reference, I've already made a patch to errors.Is that changes it to 
> support pointer arguments :)

Alternatively https://play.golang.org/p/dUgL3IuMgY5

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