> On Mar 13, 2024, at 10:27 AM, Brian Hatfield <bmhatfi...@gmail.com> wrote: > > Client.GetChild() must return GetChilder, not Child.
Actually, Client.GetChild() must return b.GetDataer, not b.GetChilder, but the example is a mind bender so it was easy to get wrong. I only got it correct by testing the code and failing to get it right a few times. > On Mar 13, 2024, at 12:59 PM, Rodrigo Araujo <rodrigo.silva.ara...@gmail.com> > wrote: > > 'Cause this dependency makes code more "rigid". A refactor in an isolated > package would let to change other packages. Also makes testing more difficult. > It is kind of described here: > https://go.dev/wiki/CodeReviewComments#interfaces > <https://go.dev/wiki/CodeReviewComments#interfaces> Besides that Jason Phillips already explained the reason what you've attempted doesn't work, consider that something needs be shared. And in Go that something is often an interface. As stated though, interfaces in Go do not work with covariance types. #fwiw Lastly, a suggestion on naming. My understanding is that it would be more idiomatic to name `b.GetChilder` as `b.ChildGetter()` and `b.GetDataer` as `b.DataGetter()`; that certainly reads easier, at least to me. Again, #fwiw -Mike -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/B6C0495B-74C4-4AEF-84C9-9C615DD52793%40newclarity.net.
