proposal: spec: add typed enum support

I'd like to propose that enum be added to Go as a special kind of `type`. The examples below are borrowed from the protobuf example. ### Enums in Go today ``` type SearchRequest int var ( SearchRequestUNIVERSAL SearchRequest = 0 // UNIVERSAL SearchRequestWEB SearchRequest = 1 // WEB SearchRequestIMAGES SearchRequest = 2 // IMAGES SearchRequestLOCAL SearchRequest = 3 // LOCAL SearchRequestNEWS SearchRequest = 4 // NEWS SearchRequestPRODUCTS SearchRequest = 5 // PRODUCTS SearchRequestVIDEO SearchRequest = 6 // VIDEO ) type SearchRequest string var ( SearchRequestUNIVERSAL SearchRequest = "UNIVERSAL" SearchRequestWEB SearchRequest = "WEB" SearchRequestIMAGES SearchRequest = "IMAGES" SearchRequestLOCAL SearchRequest = "LOCAL" SearchRequestNEWS SearchRequest = "NEWS" SearchRequestPRODUCTS SearchRequest = "PRODUCTS" SearchRequestVIDEO SearchRequest = "VIDEO" ) // IsValid has to be called everywhere input happens, or you risk bad data - no guarantees func (sr SearchRequest) IsValid() bool { switch sr { case SearchRequestUNIVERSAL, SearchRequestWEB...: return true } return false } ``` ### How it might look with language support ``` enum SearchRequest int { 0 // UNIVERSAL 1 // WEB 2 // IMAGES 3 // LOCAL 4 // NEWS 5 // PRODUCTS 6 // VIDEO } enum SearchRequest string { "UNIVERSAL" "WEB" "IMAGES" "LOCAL" "NEWS" "PRODUCTS" "VIDEO" } ``` The pattern is common en

Posted by derekperkins on Mar 31, 2017, 11:07 PM

Tags

• support (Other)

Related issues

• some bike vendor told me that the biggest problem with regular to ebike conversion was that regular bike frames were not strong enough to...
• I think of this as the kiosk economy.
• What a goofy comment.
• There's lots of evidence for positive influences of Caffeine on the body (some negative as well), especially the brain.
• Compose support in WSLc
• [RFC] Roadmap to v2.0