is there a simple implementation of enums in golang? Something like the following?
type status enum[string] {
pending = "PENDING"
active = "ACTIVE"
}
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1blog.learngoprogramming.com/…Ng Sharma– Ng Sharma2018-12-22 14:10:24 +00:00Commented Dec 22, 2018 at 14:10
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2 Answers
const (
statusPending = "PENDING"
statusActive = "ACTIVE"
)
Or, application of the example at Ultimate Visual Guide to Go Enums
// Declare a new type named status which will unify our enum values
// It has an underlying type of unsigned integer (uint).
type status int
// Declare typed constants each with type of status
const (
pending status = iota
active
)
// String returns the string value of the status
func (s status) String() string {
strings := [...]string{"PENDING", "ACTIVE"}
// prevent panicking in case of status is out-of-range
if s < pending || s > active {
return "Unknown"
}
return strings[s]
}
2 Comments
JohnAllen
Duplicating the underlying string values here. Kind of a bummer
kurczynski
@JohnAllen yeah, that's what I'm looking to avoid as well.
Something like the following?
Not yet
Read here What is an idiomatic way of representing enums in Go?
1 Comment
Victor
allow me to provide some of language's author code regarding "enums": golang.org/src/net/http/status.go