feature: adds no-stringer argument

jsonenums.go

@@ -91,6 +91,7 @@ var (
 	typeNames        = flag.String("type", "", "comma-separated list of type names; must be set")
 	outputLower      = flag.Bool("lower", false, "set the json enum values to lower case")
 	outputUpper      = flag.Bool("upper", false, "set the json enum values to upper case")
+	outputNoStringer = flag.Bool("no-stringer", false, "disable the usage of stringer if exists")
 	outputPrefix     = flag.String("prefix", "", "prefix to be added to the output file")
 	outputSuffix     = flag.String("suffix", "_jsonenums", "suffix to be added to the output file")
 )
@@ -130,12 +131,14 @@ func main() {
 		TypesAndValues map[string][]string
 		Lower          bool
 		Upper          bool
+		NoStringer     bool
 	}{
 		Command:        strings.Join(os.Args[1:], " "),
 		PackageName:    pkg.Name,
 		TypesAndValues: make(map[string][]string),
 		Lower:          *outputLower,
 		Upper:          *outputUpper,
+		NoStringer:     *outputNoStringer,
 	}
 
 	// Run generate for each type.

template.go

@@ -35,6 +35,7 @@ import (
 
 {{ $upper := .Upper}}
 {{ $lower := .Lower}}
+{{ $noStringer := .NoStringer }}
 {{range $typename, $values := .TypesAndValues}}
 
 var (
@@ -49,6 +50,7 @@ var (
     }
 )
 
+{{ if not $noStringer }}
 func init() {
     var v {{$typename}}
     if _, ok := interface{}(v).(fmt.Stringer); ok {
@@ -58,6 +60,7 @@ func init() {
         }
     }
 }
+{{ end }}
 
 // MarshalJSON is generated so {{$typename}} satisfies json.Marshaler.
 func (r {{$typename}}) MarshalJSON() ([]byte, error) {