I feel a little embarrassed to learn that the error “primitive” in Go
isn’t a primitive at all, it’s an interface:
type error interface {
Error() string
}
That’s all most Go programmers will need to know to realize everything else that this means. Any struct that implements an Error() method and usually an Unwrap() method can be encapsulated so that those trapping the error can see what it was.
#golang #coding #tips #errors