GitHub - nikolaydubina/go-enum-encoding: Generate Go enum encoding (original) (raw)

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go-enum-encoding

go install github.com/nikolaydubina/go-enum-encoding@latest

200 LOC
simple, fast, strict
generate encoding/decoding, tests, benchmarks

type Color struct{ c uint8 }

//go:generate go-enum-encoding -type=Color var ( UndefinedColor = Color{} // json:"" Red = Color{1} // json:"red" Green = Color{2} // json:"green" Blue = Color{3} // json:"blue" )

iota is ok too

type Size uint8

//go:generate go-enum-encoding -type=Size const ( UndefinedSize Size = iota // json:"" Small // json:"small" Large // json:"large" XLarge // json:"xlarge" )

generated benchmarks

$ go test -bench=. -benchmem .
goos: darwin goarch: arm64 pkg: github.com/nikolaydubina/go-enum-encoding/internal/testdata cpu: Apple M3 Max BenchmarkColor_UnmarshalText-16 752573839 1.374 ns/op 0 B/op 0 allocs/op BenchmarkColor_AppendText-16 450123993 2.676 ns/op 0 B/op 0 allocs/op BenchmarkColor_MarshalText-16 80059376 13.68 ns/op 8 B/op 1 allocs/op BenchmarkImageSize_UnmarshalText-16 751743885 1.601 ns/op 0 B/op 0 allocs/op BenchmarkImageSize_AppendText-16 500286883 2.402 ns/op 0 B/op 0 allocs/op BenchmarkImageSize_MarshalText-16 81467318 16.46 ns/op 8 B/op 1 allocs/op BenchmarkImageSize_String-16 856463289 1.330 ns/op 0 B/op 0 allocs/op PASS ok github.com/nikolaydubina/go-enum-encoding/internal/testdata 8.561s

References

http://github.com/zarldev/goenums - does much more advanced struct generation, generates all enum utilities besides encoding, does not generate tests, uses similar notation to trigger go:generate but with different comment directives (non-json field tags)
http://github.com/nikolaydubina/go-enum-example