Implement generic type interface
154 views
Skip to first unread message
Kaisa Lim
Jan 24, 2022, 12:02:09 PM1/24/22
to golang-nuts
Before the question, I'm sorry I'm not good at English
when go 1.18 beta released, i try to test generic type
Most of the code worked, but something went wrong when implementing the generic interface.
This is my code >
type Repository[T any] interface {
Save(T) T
}
type repo[T any] struct {
}
func NewRepository[T any]() Repository[T] {
return &repo[T]{}
}
func (r repo[T]) Save(entity T) T {
return entity
}
Save(T) T
}
type repo[T any] struct {
}
func NewRepository[T any]() Repository[T] {
return &repo[T]{}
}
func (r repo[T]) Save(entity T) T {
return entity
}
This code looks fine and works normally when executed.
But, ide throw compile exception. Why?
* Again, build and run is normal *
Axel Wagner
Jan 24, 2022, 12:05:27 PM1/24/22
to golang-nuts
It seems you might want to read the actual error message it shows. And perhaps contact the vendor of that IDE (you didn't say which one).
--
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...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/19fbde0e-d3e3-46c9-b727-1833a1b0bf1dn%40googlegroups.com.
Ian Lance Taylor
Jan 24, 2022, 5:48:19 PM1/24/22
to Kaisa Lim, golang-nuts
What IDE are you using?
Generics are very new and are not yet in any released version of Go. Are you sure that your IDE supports generics?
Ian
Denis Cheremisov
Jan 26, 2022, 1:51:55 AM1/26/22
to golang-nuts
GoLand' support for generics is in alpha stage today, false negatives are pretty common and this is your case.
понедельник, 24 января 2022 г. в 20:02:09 UTC+3, ka...@swit.io:
Reply all
Reply to author
Forward
0 new messages