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{{ $u := . }}
{{ $basename := $u.Name.Go }}
{{ $discriminatorField := $u.DiscriminatorField API }}
// {{ $u.Name }} -> {{ $basename }} (flat union)
// {{ $basename }} implements the "{{ .Name }}" QMP API type.
//
// Can be one of:
{{- range $suffix, $type := $u.Options }}
// - {{ $basename }}{{ $suffix.Go }}
{{- end }}
type {{ $basename }} interface {
is{{ $basename }}()
}
{{- range $suffix, $type := $u.Options }}
{{ $subname := printf "%s%s" $basename $suffix.Go }}
{{ $subtype := (index API $type) }}
// {{ $subname }} is an implementation of {{ $basename }}.
type {{ $subname }} struct {
{{- range $u.Base.Fields API }}
{{- if ne .Name $u.Discriminator }}
{{ render . }}
{{- end }}
{{- end }}
{{- range $subtype.Fields }}
{{ render . }}
{{- end }}
}
func ({{ $subname }}) is{{ $basename }}() {}
// MarshalJSON implements json.Marshaler.
func (s {{ $subname }}) MarshalJSON() ([]byte, error) {
v := struct{
{{- range $u.Base.Fields API }}
{{- if eq .Name $u.Discriminator }}
{{ render . }}
{{- end }}
{{- end }}
{{ $subname }}
}{
{{ $discriminatorField.Type.Go }}{{ $suffix.Go }},
s,
}
return json.Marshal(v)
}
{{- end }}
func decode{{ $basename }}(bs json.RawMessage) ({{ $basename }}, error) {
v := struct{
{{ render $discriminatorField }}
}{}
if err := json.Unmarshal([]byte(bs), &v); err != nil {
return nil, err
}
switch v.{{ $discriminatorField.Name.Go }} {
{{- range $suffix, $type := $u.Options }}
case {{ $discriminatorField.Type.Go }}{{ $suffix.Go }}:
var ret {{ $basename }}{{ $suffix.Go }}
err := json.Unmarshal([]byte(bs), &ret)
return ret, err
{{- end }}
default:
return nil, fmt.Errorf("unknown flat union subtype %q for flat union {{ $basename }}", v.{{ $discriminatorField.Name.Go }})
}
}
|
