[sszz]

Thanks for this—easier to digest than other posts I’ve seen. The ability to restrict interfaces to specific types is pretty cool (unique?) but otherwise seems like generics as usual, but with a distinct Go flavor. Looking forward to using this and cleaning up some boilerplate!

[maybeOneDay]

Unless I'm missing something I can't see any constraining ability that isn't possible in C#[0], for example?

[0] https://docs.microsoft.com/en-us/dotnet/csharp/programming-g...

[scns]

Maybe you are missing that this is not possible in Go yet?