func (p *plugin) getEnumVal(field *descriptor.FieldDescriptorProto, goTyp string) string {
enum := p.ObjectNamed(field.GetTypeName()).(*generator.EnumDescriptor)
l := len(enum.Value)
values := make([]string, l)
for i := range enum.Value {
values[i] = strconv.Itoa(int(*enum.Value[i].Number))
}
arr := "[]int32{" + strings.Join(values, ",") + "}"
val := strings.Join([]string{generator.GoTypeToName(goTyp), `(`, arr, `[r.Intn(`, fmt.Sprintf("%d", l), `)])`}, "")
return val
}
func (p *gostring) Generate(file *generator.FileDescriptor) {
proto3 := gogoproto.IsProto3(file.FileDescriptorProto)
p.PluginImports = generator.NewPluginImports(p.Generator)
p.atleastOne = false
p.localName = generator.FileName(file)
fmtPkg := p.NewImport("fmt")
stringsPkg := p.NewImport("strings")
protoPkg := p.NewImport("github.com/andres-erbsen/protobuf/proto")
if !gogoproto.ImportsGoGoProto(file.FileDescriptorProto) {
protoPkg = p.NewImport("github.com/golang/protobuf/proto")
}
sortPkg := p.NewImport("sort")
strconvPkg := p.NewImport("strconv")
reflectPkg := p.NewImport("reflect")
sortKeysPkg := p.NewImport("github.com/andres-erbsen/protobuf/sortkeys")
for _, message := range file.Messages() {
if !gogoproto.HasGoString(file.FileDescriptorProto, message.DescriptorProto) {
continue
}
if message.DescriptorProto.GetOptions().GetMapEntry() {
continue
}
p.atleastOne = true
packageName := file.PackageName()
ccTypeName := generator.CamelCaseSlice(message.TypeName())
p.P(`func (this *`, ccTypeName, `) GoString() string {`)
p.In()
p.P(`if this == nil {`)
p.In()
p.P(`return "nil"`)
p.Out()
p.P(`}`)
p.P(`s := make([]string, 0, `, strconv.Itoa(len(message.Field)+4), `)`)
p.P(`s = append(s, "&`, packageName, ".", ccTypeName, `{")`)
oneofs := make(map[string]struct{})
for _, field := range message.Field {
nullable := gogoproto.IsNullable(field)
repeated := field.IsRepeated()
fieldname := p.GetFieldName(message, field)
oneof := field.OneofIndex != nil
if oneof {
if _, ok := oneofs[fieldname]; ok {
continue
} else {
oneofs[fieldname] = struct{}{}
}
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
p.P(`s = append(s, "`, fieldname, `: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `) + ",\n")`)
p.Out()
p.P(`}`)
} else if generator.IsMap(file.FileDescriptorProto, field) {
mapMsg := generator.GetMap(file.FileDescriptorProto, field)
keyField, valueField := mapMsg.GetMapFields()
keysName := `keysFor` + fieldname
keygoTyp, _ := p.GoType(nil, keyField)
keygoTyp = strings.Replace(keygoTyp, "*", "", 1)
keyCapTyp := generator.CamelCase(keygoTyp)
valuegoTyp, _ := p.GoType(nil, valueField)
if !valueField.IsMessage() {
valuegoTyp = strings.Replace(valuegoTyp, "*", "", 1)
}
p.P(keysName, ` := make([]`, keygoTyp, `, 0, len(this.`, fieldname, `))`)
p.P(`for k, _ := range this.`, fieldname, ` {`)
p.In()
p.P(keysName, ` = append(`, keysName, `, k)`)
p.Out()
p.P(`}`)
p.P(sortKeysPkg.Use(), `.`, keyCapTyp, `s(`, keysName, `)`)
mapName := `mapStringFor` + fieldname
p.P(mapName, ` := "map[`, keygoTyp, `]`, valuegoTyp, `{"`)
p.P(`for _, k := range `, keysName, ` {`)
p.In()
p.P(mapName, ` += fmt.Sprintf("%#v: %#v,", k, this.`, fieldname, `[k])`)
p.Out()
p.P(`}`)
p.P(mapName, ` += "}"`)
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
p.P(`s = append(s, "`, fieldname, `: " + `, mapName, `+ ",\n")`)
p.Out()
p.P(`}`)
} else if field.IsMessage() || p.IsGroup(field) {
if nullable || repeated {
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
}
if nullable {
p.P(`s = append(s, "`, fieldname, `: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `) + ",\n")`)
} else if repeated {
p.P(`s = append(s, "`, fieldname, `: " + `, stringsPkg.Use(), `.Replace(`, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `)`, ",`&`,``,1)", ` + ",\n")`)
} else {
p.P(`s = append(s, "`, fieldname, `: " + `, stringsPkg.Use(), `.Replace(this.`, fieldname, `.GoString()`, ",`&`,``,1)", ` + ",\n")`)
}
if nullable || repeated {
p.Out()
p.P(`}`)
}
} else {
if !proto3 && (nullable || repeated) {
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
}
if field.IsEnum() {
if nullable && !repeated && !proto3 {
goTyp, _ := p.GoType(message, field)
p.P(`s = append(s, "`, fieldname, `: " + valueToGoString`, p.localName, `(this.`, fieldname, `,"`, packageName, ".", generator.GoTypeToName(goTyp), `"`, `) + ",\n")`)
} else {
p.P(`s = append(s, "`, fieldname, `: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `) + ",\n")`)
}
} else {
if nullable && !repeated && !proto3 {
goTyp, _ := p.GoType(message, field)
p.P(`s = append(s, "`, fieldname, `: " + valueToGoString`, p.localName, `(this.`, fieldname, `,"`, generator.GoTypeToName(goTyp), `"`, `) + ",\n")`)
} else {
p.P(`s = append(s, "`, fieldname, `: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `) + ",\n")`)
}
}
if !proto3 && (nullable || repeated) {
p.Out()
p.P(`}`)
}
}
}
if message.DescriptorProto.HasExtension() {
p.P(`if this.XXX_extensions != nil {`)
p.In()
if gogoproto.HasExtensionsMap(file.FileDescriptorProto, message.DescriptorProto) {
p.P(`s = append(s, "XXX_extensions: " + extensionToGoString`, p.localName, `(this.XXX_extensions) + ",\n")`)
} else {
p.P(`s = append(s, "XXX_extensions: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.XXX_extensions) + ",\n")`)
}
p.Out()
p.P(`}`)
}
if gogoproto.HasUnrecognized(file.FileDescriptorProto, message.DescriptorProto) {
p.P(`if this.XXX_unrecognized != nil {`)
p.In()
p.P(`s = append(s, "XXX_unrecognized:" + `, fmtPkg.Use(), `.Sprintf("%#v", this.XXX_unrecognized) + ",\n")`)
p.Out()
p.P(`}`)
}
p.P(`s = append(s, "}")`)
//outStr += strings.Join([]string{" + `}`", `}`, `,", "`, ")"}, "")
p.P(`return `, stringsPkg.Use(), `.Join(s, "")`)
p.Out()
p.P(`}`)
//Generate GoString methods for oneof fields
for _, field := range message.Field {
oneof := field.OneofIndex != nil
if !oneof {
continue
}
ccTypeName := p.OneOfTypeName(message, field)
p.P(`func (this *`, ccTypeName, `) GoString() string {`)
p.In()
p.P(`if this == nil {`)
p.In()
p.P(`return "nil"`)
p.Out()
p.P(`}`)
outFlds := []string{}
fieldname := p.GetOneOfFieldName(message, field)
if field.IsMessage() || p.IsGroup(field) {
tmp := strings.Join([]string{"`", fieldname, ":` + "}, "")
tmp += strings.Join([]string{fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `)`}, "")
outFlds = append(outFlds, tmp)
} else {
tmp := strings.Join([]string{"`", fieldname, ":` + "}, "")
tmp += strings.Join([]string{fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, ")"}, "")
outFlds = append(outFlds, tmp)
}
outStr := strings.Join([]string{"s := ", stringsPkg.Use(), ".Join([]string{`&", packageName, ".", ccTypeName, "{` + \n"}, "")
outStr += strings.Join(outFlds, ",\n")
outStr += strings.Join([]string{" + `}`", `}`, `,", "`, ")"}, "")
p.P(outStr)
p.P(`return s`)
p.Out()
p.P(`}`)
}
}
if !p.atleastOne {
return
}
p.P(`func valueToGoString`, p.localName, `(v interface{}, typ string) string {`)
p.In()
p.P(`rv := `, reflectPkg.Use(), `.ValueOf(v)`)
p.P(`if rv.IsNil() {`)
p.In()
p.P(`return "nil"`)
p.Out()
p.P(`}`)
p.P(`pv := `, reflectPkg.Use(), `.Indirect(rv).Interface()`)
p.P(`return `, fmtPkg.Use(), `.Sprintf("func(v %v) *%v { return &v } ( %#v )", typ, typ, pv)`)
p.Out()
p.P(`}`)
p.P(`func extensionToGoString`, p.localName, `(e map[int32]`, protoPkg.Use(), `.Extension) string {`)
p.In()
p.P(`if e == nil { return "nil" }`)
p.P(`s := "map[int32]proto.Extension{"`)
p.P(`keys := make([]int, 0, len(e))`)
p.P(`for k := range e {`)
p.In()
p.P(`keys = append(keys, int(k))`)
p.Out()
p.P(`}`)
p.P(sortPkg.Use(), `.Ints(keys)`)
p.P(`ss := []string{}`)
p.P(`for _, k := range keys {`)
p.In()
p.P(`ss = append(ss, `, strconvPkg.Use(), `.Itoa(k) + ": " + e[int32(k)].GoString())`)
p.Out()
p.P(`}`)
p.P(`s+=`, stringsPkg.Use(), `.Join(ss, ",") + "}"`)
p.P(`return s`)
p.Out()
p.P(`}`)
}
func (p *union) Generate(file *generator.FileDescriptor) {
p.PluginImports = generator.NewPluginImports(p.Generator)
for _, message := range file.Messages() {
if !gogoproto.IsUnion(file.FileDescriptorProto, message.DescriptorProto) {
continue
}
if message.DescriptorProto.HasExtension() {
panic("onlyone does not currently support extensions")
}
if message.DescriptorProto.GetOptions().GetMapEntry() {
continue
}
ccTypeName := generator.CamelCaseSlice(message.TypeName())
p.P(`func (this *`, ccTypeName, `) GetValue() interface{} {`)
p.In()
for _, field := range message.Field {
fieldname := p.GetFieldName(message, field)
if fieldname == "Value" {
panic("cannot have a onlyone message " + ccTypeName + " with a field named Value")
}
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
p.P(`return this.`, fieldname)
p.Out()
p.P(`}`)
}
p.P(`return nil`)
p.Out()
p.P(`}`)
p.P(``)
p.P(`func (this *`, ccTypeName, `) SetValue(value interface{}) bool {`)
p.In()
p.P(`switch vt := value.(type) {`)
p.In()
for _, field := range message.Field {
fieldname := p.GetFieldName(message, field)
goTyp, _ := p.GoType(message, field)
p.P(`case `, goTyp, `:`)
p.In()
p.P(`this.`, fieldname, ` = vt`)
p.Out()
}
p.P(`default:`)
p.In()
for _, field := range message.Field {
fieldname := p.GetFieldName(message, field)
if field.IsMessage() {
goTyp, _ := p.GoType(message, field)
obj := p.ObjectNamed(field.GetTypeName()).(*generator.Descriptor)
if gogoproto.IsUnion(obj.File(), obj.DescriptorProto) {
p.P(`this.`, fieldname, ` = new(`, generator.GoTypeToName(goTyp), `)`)
p.P(`if set := this.`, fieldname, `.SetValue(value); set {`)
p.In()
p.P(`return true`)
p.Out()
p.P(`}`)
p.P(`this.`, fieldname, ` = nil`)
}
}
}
p.P(`return false`)
p.Out()
p.P(`}`)
p.P(`return true`)
p.Out()
p.P(`}`)
}
}
func (p *plugin) GenerateField(file *generator.FileDescriptor, message *generator.Descriptor, field *descriptor.FieldDescriptorProto) {
proto3 := gogoproto.IsProto3(file.FileDescriptorProto)
goTyp, _ := p.GoType(message, field)
fieldname := p.GetOneOfFieldName(message, field)
goTypName := generator.GoTypeToName(goTyp)
if generator.IsMap(file.FileDescriptorProto, field) {
mapmsg := generator.GetMap(file.FileDescriptorProto, field)
mapkey, mapvalue := mapmsg.GetMapFields()
keygoTyp, _ := p.GoType(nil, mapkey)
valuegoTyp, _ := p.GoType(nil, mapvalue)
keytypName := generator.GoTypeToName(keygoTyp)
valuetypName := generator.GoTypeToName(valuegoTyp)
mapvaluegoType := valuegoTyp
if !mapvalue.IsMessage() {
mapvaluegoType = strings.Replace(mapvaluegoType, "*", "", 1)
}
p.P(p.varGen.Next(), ` := r.Intn(10)`)
p.P(`this.`, fieldname, ` = make(map[`, strings.Replace(keygoTyp, "*", "", 1), `]`, mapvaluegoType, `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
keyval := ""
if mapkey.IsString() {
keyval = fmt.Sprintf("randString%v(r)", p.localName)
} else {
keyval = value(keytypName, mapkey.GetType())
}
if mapvalue.IsMessage() || p.IsGroup(field) {
s := `this.` + fieldname + `[` + keyval + `]` + ` = `
goTypName := generator.GoTypeToName(valuegoTyp)
funcCall := getFuncCall(goTypName)
s += funcCall
p.P(s)
} else if mapvalue.IsEnum() {
s := `this.` + fieldname + `[` + keyval + `]` + ` = ` + p.getEnumVal(mapvalue, valuegoTyp)
p.P(s)
} else if mapvalue.IsBytes() {
count := p.varGen.Next()
p.P(count, ` := r.Intn(100)`)
p.P(p.varGen.Next(), ` := `, keyval)
p.P(`this.`, fieldname, `[`, p.varGen.Current(), `] = make(`, valuegoTyp, `, `, count, `)`)
p.P(`for i := 0; i < `, count, `; i++ {`)
p.In()
p.P(`this.`, fieldname, `[`, p.varGen.Current(), `][i] = byte(r.Intn(256))`)
p.Out()
p.P(`}`)
} else if mapvalue.IsString() {
s := `this.` + fieldname + `[` + keyval + `]` + ` = ` + fmt.Sprintf("randString%v(r)", p.localName)
p.P(s)
} else {
p.P(p.varGen.Next(), ` := `, keyval)
p.P(`this.`, fieldname, `[`, p.varGen.Current(), `] = `, value(valuetypName, mapvalue.GetType()))
if negative(mapvalue.GetType()) {
p.P(`if r.Intn(2) == 0 {`)
p.In()
p.P(`this.`, fieldname, `[`, p.varGen.Current(), `] *= -1`)
p.Out()
p.P(`}`)
}
}
p.Out()
p.P(`}`)
} else if field.IsMessage() || p.IsGroup(field) {
funcCall := getFuncCall(goTypName)
if field.IsRepeated() {
p.P(p.varGen.Next(), ` := r.Intn(10)`)
p.P(`this.`, fieldname, ` = make(`, goTyp, `, `, p.varGen.Current(), `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
if gogoproto.IsNullable(field) {
p.P(`this.`, fieldname, `[i] = `, funcCall)
} else {
p.P(p.varGen.Next(), `:= `, funcCall)
p.P(`this.`, fieldname, `[i] = *`, p.varGen.Current())
}
p.Out()
p.P(`}`)
} else {
if gogoproto.IsNullable(field) {
p.P(`this.`, fieldname, ` = `, funcCall)
} else {
p.P(p.varGen.Next(), `:= `, funcCall)
p.P(`this.`, fieldname, ` = *`, p.varGen.Current())
}
}
} else {
if field.IsEnum() {
val := p.getEnumVal(field, goTyp)
if field.IsRepeated() {
p.P(p.varGen.Next(), ` := r.Intn(10)`)
p.P(`this.`, fieldname, ` = make(`, goTyp, `, `, p.varGen.Current(), `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
p.P(`this.`, fieldname, `[i] = `, val)
p.Out()
p.P(`}`)
} else if !gogoproto.IsNullable(field) || proto3 {
p.P(`this.`, fieldname, ` = `, val)
} else {
p.P(p.varGen.Next(), ` := `, val)
p.P(`this.`, fieldname, ` = &`, p.varGen.Current())
}
} else if gogoproto.IsCustomType(field) {
funcCall := getCustomFuncCall(goTypName)
if field.IsRepeated() {
p.P(p.varGen.Next(), ` := r.Intn(10)`)
p.P(`this.`, fieldname, ` = make(`, goTyp, `, `, p.varGen.Current(), `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
p.P(p.varGen.Next(), `:= `, funcCall)
p.P(`this.`, fieldname, `[i] = *`, p.varGen.Current())
p.Out()
p.P(`}`)
} else if gogoproto.IsNullable(field) {
p.P(`this.`, fieldname, ` = `, funcCall)
} else {
p.P(p.varGen.Next(), `:= `, funcCall)
p.P(`this.`, fieldname, ` = *`, p.varGen.Current())
}
} else if field.IsBytes() {
if field.IsRepeated() {
p.P(p.varGen.Next(), ` := r.Intn(100)`)
p.P(`this.`, fieldname, ` = make(`, goTyp, `, `, p.varGen.Current(), `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
p.P(p.varGen.Next(), ` := r.Intn(100)`)
p.P(`this.`, fieldname, `[i] = make([]byte,`, p.varGen.Current(), `)`)
p.P(`for j := 0; j < `, p.varGen.Current(), `; j++ {`)
p.In()
p.P(`this.`, fieldname, `[i][j] = byte(r.Intn(256))`)
p.Out()
p.P(`}`)
p.Out()
p.P(`}`)
} else {
p.P(p.varGen.Next(), ` := r.Intn(100)`)
p.P(`this.`, fieldname, ` = make(`, goTyp, `, `, p.varGen.Current(), `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
p.P(`this.`, fieldname, `[i] = byte(r.Intn(256))`)
p.Out()
p.P(`}`)
}
} else if field.IsString() {
val := fmt.Sprintf("randString%v(r)", p.localName)
if field.IsRepeated() {
p.P(p.varGen.Next(), ` := r.Intn(10)`)
p.P(`this.`, fieldname, ` = make(`, goTyp, `, `, p.varGen.Current(), `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
p.P(`this.`, fieldname, `[i] = `, val)
p.Out()
p.P(`}`)
} else if !gogoproto.IsNullable(field) || proto3 {
p.P(`this.`, fieldname, ` = `, val)
} else {
p.P(p.varGen.Next(), `:= `, val)
p.P(`this.`, fieldname, ` = &`, p.varGen.Current())
}
} else {
typName := generator.GoTypeToName(goTyp)
if field.IsRepeated() {
p.P(p.varGen.Next(), ` := r.Intn(100)`)
p.P(`this.`, fieldname, ` = make(`, goTyp, `, `, p.varGen.Current(), `)`)
p.P(`for i := 0; i < `, p.varGen.Current(), `; i++ {`)
p.In()
p.P(`this.`, fieldname, `[i] = `, value(typName, field.GetType()))
if negative(field.GetType()) {
p.P(`if r.Intn(2) == 0 {`)
p.In()
p.P(`this.`, fieldname, `[i] *= -1`)
p.Out()
p.P(`}`)
}
p.Out()
p.P(`}`)
} else if !gogoproto.IsNullable(field) || proto3 {
p.P(`this.`, fieldname, ` = `, value(typName, field.GetType()))
if negative(field.GetType()) {
p.P(`if r.Intn(2) == 0 {`)
p.In()
p.P(`this.`, fieldname, ` *= -1`)
p.Out()
p.P(`}`)
}
} else {
p.P(p.varGen.Next(), ` := `, value(typName, field.GetType()))
if negative(field.GetType()) {
p.P(`if r.Intn(2) == 0 {`)
p.In()
p.P(p.varGen.Current(), ` *= -1`)
p.Out()
p.P(`}`)
}
p.P(`this.`, fieldname, ` = &`, p.varGen.Current())
}
}
}
}