When you say "polymorphism", I think you might mean "inheritance"? (Go-with-generics already has two kinds of polymorphism)
I don't really understand what you're trying to accomplish here. Perhaps you could explain your motivation a bit more? On Fri, 3 Jul 2020, 21:22 Aleksandar Milovanović, <aleksan...@videobolt.net> wrote: > If someone is interested I simplified the code, commented some more and > added the unmarshall json in the example - > https://go2goplay.golang.org/p/I_ezQ9wyWVx. > > Still, I don't know how to type the BuildEmptySpec() in BoxBaseI better > than to return a simple interface{}... If it would > return BoxSpecI(BoxBaseI) it would not be enough. > > Aleksandar > > > > On Fri, Jul 3, 2020 at 1:54 PM Aleksandar Milovanović < > aleksan...@videobolt.net> wrote: > >> Hi guys, >> >> Thanks for the effort, it is much needed for quite some time. I really >> appreciate the way of introducing the changes, go2go tool and open >> discussion, so I wanted to review them and participate with feedback so you >> can do the best job of understanding the world. With proposed changes, I >> think extending language to support something similar to polymorphism might >> be cheap. >> >> Consider this go playground: https://go2goplay.golang.org/p/jqA4ccWeAKD. >> >> Syntax is awkward currently (some syntax sugar is definitively needed), >> but the point in the test below stands - you do have polymorphic slice, you >> can use base fields and methods, and you can cast to the child structure >> (which contains all the fields and methods from the base). json marshaling >> was added to the example, json unmarshal could be implemented similarly, >> but in that case we need provided mapping from base structure to the >> specialized one, which can't be typed with current generics (for some of >> it, interface{} and reflect would be needed). Could provide that example as >> well, if needed. >> >> Sending this idea as I think it might be interesting, and I think you >> might get some more ideas out of it. >> >> Aleksandar >> > -- > 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/CAG9NSAWtK%3DeUR9%2B_vCb0X5yun6VF3SB6WOkfq5%2B-cX7KXNQ9vg%40mail.gmail.com > <https://groups.google.com/d/msgid/golang-nuts/CAG9NSAWtK%3DeUR9%2B_vCb0X5yun6VF3SB6WOkfq5%2B-cX7KXNQ9vg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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/CAJhgacjHm8b0K%3DZ8Urspgu1P1a0%2BUhWPK-vXzkA4An%3D-rRDTKg%40mail.gmail.com.
