On Wed, Oct 26, 2022 at 9:17 PM sick...@gmail.com <sick.y...@gmail.com>
wrote:
> Consider a scenario where you want to embed an error within any type of
> variable.
>
> This can be achieved by embedding any in a struct and it seems to be a
> valid syntax in Go 1.9.
> type WithError struct {
> any
> err error
> }
I don't think this really "embeds an error within any type of variable". It
*groups* an error with a value of any type. If anything is embedded, it's
`any` though.
> Does this violate any community best practices?
> Is there an alternative pattern that can achieve a similar result?
>
I don't think it violates any best practices. I would find it slightly
confusing and wonder why you didn't do
type WithError struct {
value any
err error
}
which seems clearer and mostly has the same effect - the embedding of `any`
doesn't really do anything, as it has no methods and is an unexported name.
I also think this seems probably more handy:
type WithError[T any] struct {
value T
err error
}
But, really, while I don't really understand what you are trying to
accomplish, there's nothing wrong with your code.
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