func (p *plugin) hasLoop(field *descriptor.FieldDescriptorProto, visited []*generator.Descriptor, excludes []*generator.Descriptor) *generator.Descriptor {
if field.IsMessage() || p.IsGroup(field) {
fieldMessage := p.ObjectNamed(field.GetTypeName()).(*generator.Descriptor)
fieldTypeName := generator.CamelCaseSlice(fieldMessage.TypeName())
for _, message := range visited {
messageTypeName := generator.CamelCaseSlice(message.TypeName())
if fieldTypeName == messageTypeName {
for _, e := range excludes {
if fieldTypeName == generator.CamelCaseSlice(e.TypeName()) {
return nil
}
}
return fieldMessage
}
}
for _, f := range fieldMessage.Field {
visited = append(visited, fieldMessage)
loopTo := p.hasLoop(f, visited, excludes)
if loopTo != nil {
return loopTo
}
}
}
return nil
}
func (g *Generator) field(field *descriptor.FieldDescriptorProto, fieldname string) {
repeated := field.IsRepeated()
gotype, _ := g.GoType(nil, field)
fieldtype := GoTypeToName(gotype)
if repeated {
g.P(`m.`, SizerName(fieldname), ` += 1`)
} else {
g.P(`m.`, SetterName(fieldname), ` = true`)
}
if gogoproto.IsCustomType(field) {
_, typ, err := GetCustomType(field)
if err != nil {
panic(err)
}
fieldtype = typ
}
switch *field.Type {
case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
if repeated {
g.P(`var v uint64`)
g.decodeFixed64("v", "uint64")
g.P(`v2 := `, g.Pkg["math"], `.Float64frombits(v)`)
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v2))`)
} else {
g.P(`var v uint64`)
g.decodeFixed64("v", "uint64")
g.P(`m.`, fieldname, ` = `, fieldtype, `(`, g.Pkg["math"], `.Float64frombits(v))`)
}
case descriptor.FieldDescriptorProto_TYPE_FLOAT:
if repeated {
g.P(`var v uint32`)
g.decodeFixed32("v", "uint32")
g.P(`v2 := `, g.Pkg["math"], `.Float32frombits(v)`)
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v2))`)
} else {
g.P(`var v uint32`)
g.decodeFixed32("v", "uint32")
g.P(`m.`, fieldname, ` = `, fieldtype, `(`, g.Pkg["math"], `.Float32frombits(v))`)
}
case descriptor.FieldDescriptorProto_TYPE_INT64:
if repeated {
g.P(`var v int64`)
g.decodeVarint("v", "int64")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.decodeVarint("m."+fieldname, fieldtype)
}
case descriptor.FieldDescriptorProto_TYPE_UINT64:
if repeated {
g.P(`var v uint64`)
g.decodeVarint("v", "uint64")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.decodeVarint("m."+fieldname, fieldtype)
}
case descriptor.FieldDescriptorProto_TYPE_INT32:
if repeated {
g.P(`var v int32`)
g.decodeVarint("v", "int32")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.decodeVarint("m."+fieldname, fieldtype)
}
case descriptor.FieldDescriptorProto_TYPE_FIXED64:
if repeated {
g.P(`var v uint64`)
g.decodeFixed64("v", "uint64")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.decodeFixed64("m."+fieldname, fieldtype)
}
case descriptor.FieldDescriptorProto_TYPE_FIXED32:
if repeated {
g.P(`var v uint32`)
g.decodeFixed32("v", "uint32")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.decodeFixed32("m."+fieldname, fieldtype)
}
case descriptor.FieldDescriptorProto_TYPE_BOOL:
if repeated {
g.P(`var v int`)
g.decodeVarint("v", "int")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(bool(v != 0)))`)
} else {
g.P(`var v int`)
g.decodeVarint("v", "int")
g.P(`m.`, fieldname, ` = `, fieldtype, `(bool(v != 0))`)
}
case descriptor.FieldDescriptorProto_TYPE_STRING:
g.P(`var stringLen uint64`)
g.decodeVarint("stringLen", "uint64")
g.P(`postIndex := index + int(stringLen)`)
g.P(`if postIndex > l {`)
g.In()
g.P(`return `, g.Pkg["io"], `.ErrUnexpectedEOF`)
g.Out()
g.P(`}`)
if repeated {
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(data[index:postIndex]))`)
} else {
g.P(`m.`, fieldname, ` = `, fieldtype, `(data[index:postIndex])`)
}
g.P(`index = postIndex`)
case descriptor.FieldDescriptorProto_TYPE_GROUP:
panic(fmt.Errorf("unmarshaler does not support group %v", fieldname))
case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
desc := g.ObjectNamed(field.GetTypeName())
msgname := g.TypeName(desc)
g.P(`var msglen int`)
g.decodeVarint("msglen", "int")
g.P(`postIndex := index + msglen`)
g.P(`if postIndex > l {`)
g.In()
g.P(`return `, g.Pkg["io"], `.ErrUnexpectedEOF`)
g.Out()
g.P(`}`)
if repeated {
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, &`, msgname, `{})`)
g.P(`m.`, fieldname, `[len(m.`, fieldname, `)-1].Unmarshal(data[index:postIndex])`)
} else {
g.P(`m.`, fieldname, ` = &`, msgname, `{}`)
g.P(`if err := m.`, fieldname, `.Unmarshal(data[index:postIndex]); err != nil {`)
g.In()
g.P(`return err`)
g.Out()
g.P(`}`)
}
g.P(`index = postIndex`)
case descriptor.FieldDescriptorProto_TYPE_BYTES:
g.P(`var byteLen int`)
g.decodeVarint("byteLen", "int")
g.P(`postIndex := index + byteLen`)
g.P(`if postIndex > l {`)
g.In()
g.P(`return `, g.Pkg["io"], `.ErrUnexpectedEOF`)
g.Out()
g.P(`}`)
if !gogoproto.IsCustomType(field) {
if repeated {
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, make([]byte, postIndex-index))`)
g.P(`copy(m.`, fieldname, `[len(m.`, fieldname, `)-1], data[index:postIndex])`)
} else {
g.P(`m.`, fieldname, ` = append([]byte{}, data[index:postIndex]...)`)
}
} else {
if repeated {
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, make(([]byte), postIndex-index))`)
g.P(`copy(m.`, fieldname, `[len(m.`, fieldname, `)-1], data[index:postIndex])`)
} else {
g.P(`m.`, fieldname, ` = append([]byte{}, data[index:postIndex]...)`)
}
}
g.P(`index = postIndex`)
case descriptor.FieldDescriptorProto_TYPE_UINT32:
if repeated {
g.P(`var v uint32`)
g.decodeVarint("v", "uint32")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.decodeVarint("m."+fieldname, fieldtype)
}
case descriptor.FieldDescriptorProto_TYPE_ENUM:
if !gogoproto.IsCustomType(field) {
typName := g.TypeName(g.ObjectNamed(field.GetTypeName()))
if repeated {
g.P(`var v `, typName)
g.decodeVarint("v", typName)
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else {
g.decodeVarint("m."+fieldname, typName)
}
} else {
panic("Enum custom types is not supported!")
}
case descriptor.FieldDescriptorProto_TYPE_SFIXED32:
if repeated {
g.P(`var v int32`)
g.decodeFixed32("v", "int32")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.decodeFixed32("m."+fieldname, fieldtype)
}
case descriptor.FieldDescriptorProto_TYPE_SFIXED64:
if repeated {
g.P(`var v int64`)
g.decodeFixed64("v", "int64")
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.decodeFixed64("m."+fieldname, fieldtype)
}
case descriptor.FieldDescriptorProto_TYPE_SINT32:
g.P(`var v int32`)
g.decodeVarint("v", "int32")
g.P(`v = int32((uint32(v) >> 1) ^ uint32(((v&1)<<31)>>31))`)
if repeated {
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(v))`)
} else {
g.P(`m.`, fieldname, ` = `, fieldtype, `(v)`)
}
case descriptor.FieldDescriptorProto_TYPE_SINT64:
g.P(`var v uint64`)
g.decodeVarint("v", "uint64")
g.P(`v = (v >> 1) ^ uint64((int64(v&1)<<63)>>63)`)
if repeated {
g.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, fieldtype, `(int64(v)))`)
} else {
g.P(`m.`, fieldname, ` = `, fieldtype, `(int64(v))`)
}
default:
panic("not implemented")
}
}
func (p *plugin) GenerateField(message *generator.Descriptor, field *descriptor.FieldDescriptorProto) {
goTyp, _ := p.GoType(message, field)
fieldname := p.GetFieldName(message, field)
goTypName := generator.GoTypeToName(goTyp)
ctype := ""
if gogoproto.IsCustomType(field) {
_, typ, err := generator.GetCustomType(field)
if err != nil {
panic(err)
}
ctype = typ
}
if field.IsMessage() || p.IsGroup(field) {
funcName := "NewPopulated" + goTypName
goTypNames := strings.Split(goTypName, ".")
if len(goTypNames) == 2 {
funcName = goTypNames[0] + ".NewPopulated" + goTypNames[1]
} else if len(goTypNames) != 1 {
panic(fmt.Errorf("unreachable: too many dots in %v", goTypName))
}
funcCall := funcName + "(r, easy)"
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.`, generator.SizerName(fieldname), ` += 1`)
p.P(`this.`, fieldname, `[i] = `, p.varGen.Current())
p.Out()
p.P(`}`)
} else {
p.P(p.varGen.Next(), `:= `, funcCall)
p.P(`this.`, generator.SetterName(fieldname), ` = true`)
p.P(`this.`, fieldname, ` = `, p.varGen.Current())
}
} else {
if field.IsEnum() {
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), `)])`}, "")
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.`, generator.SizerName(fieldname), ` += 1`)
p.P(`this.`, fieldname, `[i] = `, val)
p.Out()
p.P(`}`)
} else {
p.P(`this.`, generator.SetterName(fieldname), ` = true`)
p.P(`this.`, fieldname, ` = `, val)
}
} 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.`, generator.SizerName(fieldname), ` += 1`)
p.P(`this.`, fieldname, `[i] = `, ctype, `(`, val, `)`)
p.Out()
p.P(`}`)
} else {
p.P(`this.`, generator.SetterName(fieldname), ` = true`)
p.P(`this.`, fieldname, ` = `, ctype, `(`, val, `)`)
}
} 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.`, generator.SizerName(fieldname), ` += 1`)
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.`, generator.SetterName(fieldname), ` = true`)
p.P(`this.`, fieldname, `[i] = byte(r.Intn(256))`)
p.Out()
p.P(`}`)
}
} else {
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.`, generator.SizerName(fieldname), ` += 1`)
p.P(`this.`, fieldname, `[i] = `, ctype, `(`, value(field), `)`)
if negative(field) {
p.P(`if r.Intn(2) == 0 {`)
p.In()
p.P(`this.`, fieldname, `[i] *= `, ctype, `(-1)`)
p.Out()
p.P(`}`)
}
p.Out()
p.P(`}`)
} else {
p.P(`this.`, generator.SetterName(fieldname), ` = true`)
p.P(`this.`, fieldname, ` = `, ctype, `(`, value(field), `)`)
if negative(field) {
p.P(`if r.Intn(2) == 0 {`)
p.In()
p.P(`this.`, fieldname, ` *= `, ctype, `(-1)`)
p.Out()
p.P(`}`)
}
}
}
}
}
func (g *Generator) IsGroup(field *descriptor.FieldDescriptorProto) bool {
if d, ok := g.typeNameToObject[field.GetTypeName()].(*Descriptor); ok {
return d.IsGroup()
}
return false
}