I am glad I found this thread because I was just now breaking my head
figuring out why my <struct constraint> was not working....
On Wednesday, May 18, 2022 at 10:41:29 PM UTC-4 Ian Lance Taylor wrote:
> On Wed, May 18, 2022 at 7:36 PM Jeremy Kassis <jka...@gmail.com> wrote:
> >
> > Where exactly did this land? Seems like an important conversation...
>
> To date there is no way to write a constraint that requires that a
> type argument be a struct type.
>
>
> > ```
> > // RPCHandler passes RPCReq and RPCRes as fn args
> > func RPCHandler[T RPCReq, S RPCRes](fn func(T, S)) http.HandlerFunc {
> > return func(w http.ResponseWriter, r *http.Request) {
> > req := T{}
> > if err := reqBodyReadAll(w, r, &req); err != nil {
> > resWriteErr(w, err)
> > return
> > }
> > res := S{}
> > fn(req, res)
> > resWriteAll(w, r, res)
> > }
> > }
> > ```
>
> I would write simply "var req T" and "var res S".
>
> Ian
>
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