Enums in Go

1. enum

   1 2 424 5.1 Go

   Type safe enums for Go without code generation or reflection (by orsinium-labs)

   

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3. enumer

   2 8 484 4.1 Go

   A Go tool to auto generate methods for your enums (by dmarkham)

   

   I’ve found the enumer [0] library does the job of generating usable helpers without too much pain or any obvious downsides.

   Still, the lack of enums and enum/sum types remains by far my biggest gripe about Go.

   [0] https://github.com/dmarkham/enumer

4. go-enum-encoding

   3 1 15 6.9 Go

   Generate Go enum encoding

   

   +1. Here is another alternative. I find this generator more lightweight and better syntax:

   https://github.com/nikolaydubina/go-enum-encoding

5. exhaustive

   4 12 324 4.4 Go

   Check exhaustiveness of switch statements of enum-like constants in Go source code.

   

   There are two linters that add those checks: https://github.com/nishanths/exhaustive for values and https://github.com/alecthomas/go-check-sumtype for types. Both are integrated into golangci-lint. I use both a lot and have only a positive experience.

   Having support from the language would be nice, though.

6. go-check-sumtype

   5 2 32 4.4 Go

   A simple utility for running exhaustiveness checks on Go "sum types."

   

   There are two linters that add those checks: https://github.com/nishanths/exhaustive for values and https://github.com/alecthomas/go-check-sumtype for types. Both are integrated into golangci-lint. I use both a lot and have only a positive experience.

   Having support from the language would be nice, though.

7. go-enum

   6 8 840 3.0 Go

   An enum generator for go

   

   There's also https://github.com/abice/go-enum, which I decided to use after evaluating multiple such tools a while ago, but I don't remember exactly why it came out on top for me. Also, both (and others) have evolved since then, so things might have changed.

   One nice thing go-enum does is to even generate the consts, just from a list of values in a comment.

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