Awesome. Thanks muchly
On Sat, May 8, 2021 at 11:40 PM Ian Lance Taylor <i...@golang.org> wrote:
>
> On Fri, May 7, 2021 at 11:08 AM Viet Nguyen <afel...@gmail.com> wrote:
> >
> > I'm trying to convert this code to use generics:
> >
> > type Cache interface {
> > GetIfPresent(interface{}) (interface{}, bool)
> > }
> >
> > type LoadingCache interface {
> > Cache
> > Get(interface{}) (interface{}, error)
> > }
> >
> > However, I couldn't find any way to include Cache[K, V] in LoadingCache[K,
> > V]. (No similar use cases in the proposal? I must miss something here). The
> > workaround is copying all methods over, like:
> >
> > type Cache[K comparable, V any] interface {
> > GetIfPresent(K) (V, bool)
> > }
> >
> > type LoadingCache[K comparable, V any] interface {
> > GetIfPresent(K) (V, bool) // FIXME: Embedding the Cache interface
> > Get(K) (V, error)
> > }
> >
> > // See: https://go2goplay.golang.org/p/T7h15CdUEa3
> > // WIP: https://github.com/goburrow/cache/tree/go2
>
> The go2go tool is an experiment and it does not support all valid
> code. It's particularly bad at embedding. In the real release it
> should work to write
>
> type LoadingCache[K comparable, V any] interface {
> Cache[K, V]
> Get(K) (V, error)
> }
>
> Ian
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