example:
type Key interface {
type comparable, fmt.Stringer
}
type Value interface {
type interface{}, copyable
}
type Container(type K Key, V Value) interface {
Add(K, V) bool
}
type HashMap(type K Key, V Value) struct{ m map[K]V }
func (h *HashMap(K,V)) Add(k K, v V) bool {
h.m[k] =v
return true
}
But of course, copyable isn't defined... So where to find some of these
predefined constraints? Or if not, how could one define a such constraint?
Also how to specify constrains like
1. A type that I can call len() against it?
2. A type that I can range over it?
Thanks!
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