94 lines
2.6 KiB
Go
94 lines
2.6 KiB
Go
// Copyright 2017 Google Inc. All rights reserved.
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to writing, software distributed
|
|
// under the License is distributed on a "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
// CONDITIONS OF ANY KIND, either express or implied.
|
|
//
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// Added as a .go file to avoid embedding issues of the template.
|
|
|
|
package main
|
|
|
|
import (
|
|
"strings"
|
|
"text/template"
|
|
)
|
|
|
|
var generatedTmpl = template.Must(template.New("generated").Funcs(template.FuncMap{
|
|
"toLower": strings.ToLower,
|
|
"toUpper": strings.ToUpper,
|
|
}).Parse(`
|
|
// generated by jsonenums {{.Command}}; DO NOT EDIT
|
|
|
|
package {{.PackageName}}
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
)
|
|
|
|
{{ $upper := .Upper}}
|
|
{{ $lower := .Lower}}
|
|
{{ $noStringer := .NoStringer }}
|
|
{{range $typename, $values := .TypesAndValues}}
|
|
|
|
var (
|
|
_{{$typename}}NameToValue = map[string]{{$typename}} {
|
|
{{range $values}}"{{ if $lower }}{{ toLower . }}{{ else if $upper }}{{ toUpper .}}{{ else }}{{.}}{{end}}": {{.}},
|
|
{{end}}
|
|
}
|
|
|
|
_{{$typename}}ValueToName = map[{{$typename}}]string {
|
|
{{range $values}}{{.}}: "{{ if $lower }}{{ toLower . }}{{ else if $upper }}{{ toUpper .}}{{ else }}{{.}}{{end}}",
|
|
{{end}}
|
|
}
|
|
)
|
|
|
|
{{ if not $noStringer }}
|
|
func init() {
|
|
var v {{$typename}}
|
|
if _, ok := interface{}(v).(fmt.Stringer); ok {
|
|
_{{$typename}}NameToValue = map[string]{{$typename}} {
|
|
{{range $values}}interface{}({{.}}).(fmt.Stringer).String(): {{.}},
|
|
{{end}}
|
|
}
|
|
}
|
|
}
|
|
{{ end }}
|
|
|
|
// MarshalJSON is generated so {{$typename}} satisfies json.Marshaler.
|
|
func (r {{$typename}}) MarshalJSON() ([]byte, error) {
|
|
{{ if not $noStringer -}}
|
|
if s, ok := interface{}(r).(fmt.Stringer); ok {
|
|
return json.Marshal(s.String())
|
|
}
|
|
{{ end }}s, ok := _{{$typename}}ValueToName[r]
|
|
if !ok {
|
|
return nil, fmt.Errorf("invalid {{$typename}}: %d", r)
|
|
}
|
|
return json.Marshal(s)
|
|
}
|
|
|
|
// UnmarshalJSON is generated so {{$typename}} satisfies json.Unmarshaler.
|
|
func (r *{{$typename}}) UnmarshalJSON(data []byte) error {
|
|
var s string
|
|
if err := json.Unmarshal(data, &s); err != nil {
|
|
return fmt.Errorf("{{$typename}} should be a string, got %s", data)
|
|
}
|
|
v, ok := _{{$typename}}NameToValue[s]
|
|
if !ok {
|
|
return fmt.Errorf("invalid {{$typename}} %q", s)
|
|
}
|
|
*r = v
|
|
return nil
|
|
}
|
|
|
|
{{end}}
|
|
`))
|