func (p *unmarshal) field(file *descriptor.FileDescriptorProto, msg *generator.Descriptor, field *descriptor.FieldDescriptorProto, fieldname string, proto3 bool) {
repeated := field.IsRepeated()
nullable := gogoproto.IsNullable(field)
typ := p.noStarOrSliceType(msg, field)
switch *field.Type {
case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
if !p.unsafe || gogoproto.IsCastType(field) {
p.P(`var v uint64`)
p.decodeFixed64("v", "uint64")
if repeated {
p.P(`v2 := `, typ, "(", p.mathPkg.Use(), `.Float64frombits(v))`)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v2)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = `, typ, "(", p.mathPkg.Use(), `.Float64frombits(v))`)
} else {
p.P(`v2 := `, typ, "(", p.mathPkg.Use(), `.Float64frombits(v))`)
p.P(`m.`, fieldname, ` = &v2`)
}
} else {
if repeated {
p.P(`var v float64`)
p.unsafeFixed64("v", "float64")
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.unsafeFixed64(`m.`+fieldname, "float64")
} else {
p.P(`var v float64`)
p.unsafeFixed64("v", "float64")
p.P(`m.`, fieldname, ` = &v`)
}
}
case descriptor.FieldDescriptorProto_TYPE_FLOAT:
if !p.unsafe || gogoproto.IsCastType(field) {
p.P(`var v uint32`)
p.decodeFixed32("v", "uint32")
if repeated {
p.P(`v2 := `, typ, "(", p.mathPkg.Use(), `.Float32frombits(v))`)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v2)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = `, typ, "(", p.mathPkg.Use(), `.Float32frombits(v))`)
} else {
p.P(`v2 := `, typ, "(", p.mathPkg.Use(), `.Float32frombits(v))`)
p.P(`m.`, fieldname, ` = &v2`)
}
} else {
if repeated {
p.P(`var v float32`)
p.unsafeFixed32("v", "float32")
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.unsafeFixed32("m."+fieldname, "float32")
} else {
p.P(`var v float32`)
p.unsafeFixed32("v", "float32")
p.P(`m.`, fieldname, ` = &v`)
}
}
case descriptor.FieldDescriptorProto_TYPE_INT64:
if repeated {
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeVarint("m."+fieldname, typ)
} else {
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`m.`, fieldname, ` = &v`)
}
case descriptor.FieldDescriptorProto_TYPE_UINT64:
if repeated {
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeVarint("m."+fieldname, typ)
} else {
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`m.`, fieldname, ` = &v`)
}
case descriptor.FieldDescriptorProto_TYPE_INT32:
if repeated {
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeVarint("m."+fieldname, typ)
} else {
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`m.`, fieldname, ` = &v`)
}
case descriptor.FieldDescriptorProto_TYPE_FIXED64:
if !p.unsafe || gogoproto.IsCastType(field) {
if repeated {
p.P(`var v `, typ)
p.decodeFixed64("v", typ)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeFixed64("m."+fieldname, typ)
} else {
p.P(`var v `, typ)
p.decodeFixed64("v", typ)
p.P(`m.`, fieldname, ` = &v`)
}
} else {
if repeated {
p.P(`var v uint64`)
p.unsafeFixed64("v", "uint64")
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.unsafeFixed64("m."+fieldname, "uint64")
} else {
p.P(`var v uint64`)
p.unsafeFixed64("v", "uint64")
p.P(`m.`, fieldname, ` = &v`)
}
}
case descriptor.FieldDescriptorProto_TYPE_FIXED32:
if !p.unsafe || gogoproto.IsCastType(field) {
if repeated {
p.P(`var v `, typ)
p.decodeFixed32("v", typ)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeFixed32("m."+fieldname, typ)
} else {
p.P(`var v `, typ)
p.decodeFixed32("v", typ)
p.P(`m.`, fieldname, ` = &v`)
}
} else {
if repeated {
p.P(`var v uint32`)
p.unsafeFixed32("v", "uint32")
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.unsafeFixed32("m."+fieldname, "uint32")
} else {
p.P(`var v uint32`)
p.unsafeFixed32("v", "uint32")
p.P(`m.`, fieldname, ` = &v`)
}
}
case descriptor.FieldDescriptorProto_TYPE_BOOL:
p.P(`var v int`)
p.decodeVarint("v", "int")
if repeated {
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, typ, `(v != 0))`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = `, typ, `(v != 0)`)
} else {
p.P(`b := `, typ, `(v != 0)`)
p.P(`m.`, fieldname, ` = &b`)
}
case descriptor.FieldDescriptorProto_TYPE_STRING:
p.P(`var stringLen uint64`)
p.decodeVarint("stringLen", "uint64")
p.P(`postIndex := iNdEx + int(stringLen)`)
p.P(`if postIndex > l {`)
p.In()
p.P(`return `, p.ioPkg.Use(), `.ErrUnexpectedEOF`)
p.Out()
p.P(`}`)
if repeated {
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, typ, `(data[iNdEx:postIndex]))`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = `, typ, `(data[iNdEx:postIndex])`)
} else {
p.P(`s := `, typ, `(data[iNdEx:postIndex])`)
p.P(`m.`, fieldname, ` = &s`)
}
p.P(`iNdEx = postIndex`)
case descriptor.FieldDescriptorProto_TYPE_GROUP:
panic(fmt.Errorf("unmarshaler does not support group %v", fieldname))
case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
desc := p.ObjectNamed(field.GetTypeName())
msgname := p.TypeName(desc)
p.P(`var msglen int`)
p.decodeVarint("msglen", "int")
p.P(`postIndex := iNdEx + msglen`)
p.P(`if postIndex > l {`)
p.In()
p.P(`return `, p.ioPkg.Use(), `.ErrUnexpectedEOF`)
p.Out()
p.P(`}`)
if generator.IsMap(file, field) {
mapMsg := generator.GetMap(file, field)
keyField, valueField := mapMsg.GetMapFields()
keygoTyp, _ := p.GoType(nil, keyField)
keygoTyp = strings.Replace(keygoTyp, "*", "", 1)
valuegoTyp, _ := p.GoType(nil, valueField)
if !valueField.IsMessage() {
valuegoTyp = strings.Replace(valuegoTyp, "*", "", 1)
}
p.P(`var keykey uint64`)
p.decodeVarint("keykey", "uint64")
p.mapField("mapkey", keyField)
p.P(`var valuekey uint64`)
p.decodeVarint("valuekey", "uint64")
p.mapField("mapvalue", valueField)
p.P(`if m.`, fieldname, ` == nil {`)
p.In()
p.P(`m.`, fieldname, ` = make(map[`, keygoTyp, `]`, valuegoTyp, `)`)
p.Out()
p.P(`}`)
p.P(`m.`, fieldname, `[mapkey] = mapvalue`)
} else if repeated {
if nullable {
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, &`, msgname, `{})`)
} else {
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, msgname, `{})`)
}
p.P(`if err := m.`, fieldname, `[len(m.`, fieldname, `)-1].Unmarshal(data[iNdEx:postIndex]); err != nil {`)
p.In()
p.P(`return err`)
p.Out()
p.P(`}`)
} else if nullable {
p.P(`if m.`, fieldname, ` == nil {`)
p.In()
p.P(`m.`, fieldname, ` = &`, msgname, `{}`)
p.Out()
p.P(`}`)
p.P(`if err := m.`, fieldname, `.Unmarshal(data[iNdEx:postIndex]); err != nil {`)
p.In()
p.P(`return err`)
p.Out()
p.P(`}`)
} else {
p.P(`if err := m.`, fieldname, `.Unmarshal(data[iNdEx:postIndex]); err != nil {`)
p.In()
p.P(`return err`)
p.Out()
p.P(`}`)
}
p.P(`iNdEx = postIndex`)
case descriptor.FieldDescriptorProto_TYPE_BYTES:
p.P(`var byteLen int`)
p.decodeVarint("byteLen", "int")
p.P(`postIndex := iNdEx + byteLen`)
p.P(`if postIndex > l {`)
p.In()
p.P(`return `, p.ioPkg.Use(), `.ErrUnexpectedEOF`)
p.Out()
p.P(`}`)
if !gogoproto.IsCustomType(field) {
if repeated {
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, make([]byte, postIndex-iNdEx))`)
p.P(`copy(m.`, fieldname, `[len(m.`, fieldname, `)-1], data[iNdEx:postIndex])`)
} else {
p.P(`m.`, fieldname, ` = append([]byte{}`, `, data[iNdEx:postIndex]...)`)
}
} else {
_, ctyp, err := generator.GetCustomType(field)
if err != nil {
panic(err)
}
if repeated {
p.P(`var v `, ctyp)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
p.P(`if err := m.`, fieldname, `[len(m.`, fieldname, `)-1].Unmarshal(data[iNdEx:postIndex]); err != nil {`)
p.In()
p.P(`return err`)
p.Out()
p.P(`}`)
} else if nullable {
p.P(`var v `, ctyp)
p.P(`m.`, fieldname, ` = &v`)
p.P(`if err := m.`, fieldname, `.Unmarshal(data[iNdEx:postIndex]); err != nil {`)
p.In()
p.P(`return err`)
p.Out()
p.P(`}`)
} else {
p.P(`if err := m.`, fieldname, `.Unmarshal(data[iNdEx:postIndex]); err != nil {`)
p.In()
p.P(`return err`)
p.Out()
p.P(`}`)
}
}
p.P(`iNdEx = postIndex`)
case descriptor.FieldDescriptorProto_TYPE_UINT32:
if repeated {
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeVarint("m."+fieldname, typ)
} else {
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`m.`, fieldname, ` = &v`)
}
case descriptor.FieldDescriptorProto_TYPE_ENUM:
typName := p.TypeName(p.ObjectNamed(field.GetTypeName()))
if repeated {
p.P(`var v `, typName)
p.decodeVarint("v", typName)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeVarint("m."+fieldname, typName)
} else {
p.P(`var v `, typName)
p.decodeVarint("v", typName)
p.P(`m.`, fieldname, ` = &v`)
}
case descriptor.FieldDescriptorProto_TYPE_SFIXED32:
if !p.unsafe || gogoproto.IsCastType(field) {
if repeated {
p.P(`var v `, typ)
p.decodeFixed32("v", typ)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeFixed32("m."+fieldname, typ)
} else {
p.P(`var v `, typ)
p.decodeFixed32("v", typ)
p.P(`m.`, fieldname, ` = &v`)
}
} else {
if repeated {
p.P(`var v int32`)
p.unsafeFixed32("v", "int32")
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.unsafeFixed32("m."+fieldname, "int32")
} else {
p.P(`var v int32`)
p.unsafeFixed32("v", "int32")
p.P(`m.`, fieldname, ` = &v`)
}
}
case descriptor.FieldDescriptorProto_TYPE_SFIXED64:
if !p.unsafe || gogoproto.IsCastType(field) {
if repeated {
p.P(`var v `, typ)
p.decodeFixed64("v", typ)
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = 0`)
p.decodeFixed64("m."+fieldname, typ)
} else {
p.P(`var v `, typ)
p.decodeFixed64("v", typ)
p.P(`m.`, fieldname, ` = &v`)
}
} else {
if repeated {
p.P(`var v int64`)
p.unsafeFixed64("v", "int64")
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.unsafeFixed64("m."+fieldname, "int64")
} else {
p.P(`var v int64`)
p.unsafeFixed64("v", "int64")
p.P(`m.`, fieldname, ` = &v`)
}
}
case descriptor.FieldDescriptorProto_TYPE_SINT32:
p.P(`var v `, typ)
p.decodeVarint("v", typ)
p.P(`v = `, typ, `((uint32(v) >> 1) ^ uint32(((v&1)<<31)>>31))`)
if repeated {
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = v`)
} else {
p.P(`m.`, fieldname, ` = &v`)
}
case descriptor.FieldDescriptorProto_TYPE_SINT64:
p.P(`var v uint64`)
p.decodeVarint("v", "uint64")
p.P(`v = (v >> 1) ^ uint64((int64(v&1)<<63)>>63)`)
if repeated {
p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, typ, `(v))`)
} else if proto3 || !nullable {
p.P(`m.`, fieldname, ` = `, typ, `(v)`)
} else {
p.P(`v2 := `, typ, `(v)`)
p.P(`m.`, fieldname, ` = &v2`)
}
default:
panic("not implemented")
}
}
