func (p *test) Generate(imports generator.PluginImports, file *generator.FileDescriptor) bool {
used := false
randPkg := imports.NewImport("math/rand")
timePkg := imports.NewImport("time")
testingPkg := imports.NewImport("testing")
protoPkg := imports.NewImport("github.com/VividCortex/protobuf/proto")
if !gogoproto.ImportsGoGoProto(file.FileDescriptorProto) {
protoPkg = imports.NewImport("github.com/golang/protobuf/proto")
}
for _, message := range file.Messages() {
ccTypeName := generator.CamelCaseSlice(message.TypeName())
if !gogoproto.IsSizer(file.FileDescriptorProto, message.DescriptorProto) {
continue
}
if message.DescriptorProto.GetOptions().GetMapEntry() {
continue
}
if gogoproto.HasTestGen(file.FileDescriptorProto, message.DescriptorProto) {
used = true
p.P(`func Test`, ccTypeName, `Size(t *`, testingPkg.Use(), `.T) {`)
p.In()
p.P(`popr := `, randPkg.Use(), `.New(`, randPkg.Use(), `.NewSource(`, timePkg.Use(), `.Now().UnixNano()))`)
p.P(`p := NewPopulated`, ccTypeName, `(popr, true)`)
p.P(`size2 := `, protoPkg.Use(), `.Size(p)`)
p.P(`data, err := `, protoPkg.Use(), `.Marshal(p)`)
p.P(`if err != nil {`)
p.In()
p.P(`panic(err)`)
p.Out()
p.P(`}`)
p.P(`size := p.Size()`)
p.P(`if len(data) != size {`)
p.In()
p.P(`t.Errorf("size %v != marshalled size %v", size, len(data))`)
p.Out()
p.P(`}`)
p.P(`if size2 != size {`)
p.In()
p.P(`t.Errorf("size %v != before marshal proto.Size %v", size, size2)`)
p.Out()
p.P(`}`)
p.P(`size3 := `, protoPkg.Use(), `.Size(p)`)
p.P(`if size3 != size {`)
p.In()
p.P(`t.Errorf("size %v != after marshal proto.Size %v", size, size3)`)
p.Out()
p.P(`}`)
p.Out()
p.P(`}`)
p.P()
}
if gogoproto.HasBenchGen(file.FileDescriptorProto, message.DescriptorProto) {
used = true
p.P(`func Benchmark`, ccTypeName, `Size(b *`, testingPkg.Use(), `.B) {`)
p.In()
p.P(`popr := `, randPkg.Use(), `.New(`, randPkg.Use(), `.NewSource(616))`)
p.P(`total := 0`)
p.P(`pops := make([]*`, ccTypeName, `, 1000)`)
p.P(`for i := 0; i < 1000; i++ {`)
p.In()
p.P(`pops[i] = NewPopulated`, ccTypeName, `(popr, false)`)
p.Out()
p.P(`}`)
p.P(`b.ResetTimer()`)
p.P(`for i := 0; i < b.N; i++ {`)
p.In()
p.P(`total += pops[i%1000].Size()`)
p.Out()
p.P(`}`)
p.P(`b.SetBytes(int64(total / b.N))`)
p.Out()
p.P(`}`)
p.P()
}
}
return used
}
func (p *size) Generate(file *generator.FileDescriptor) {
p.PluginImports = generator.NewPluginImports(p.Generator)
p.atleastOne = false
p.localName = generator.FileName(file)
protoPkg := p.NewImport("github.com/VividCortex/protobuf/proto")
if !gogoproto.ImportsGoGoProto(file.FileDescriptorProto) {
protoPkg = p.NewImport("github.com/golang/protobuf/proto")
}
for _, message := range file.Messages() {
if !gogoproto.IsSizer(file.FileDescriptorProto, message.DescriptorProto) {
continue
}
if message.DescriptorProto.GetOptions().GetMapEntry() {
continue
}
p.atleastOne = true
proto3 := gogoproto.IsProto3(file.FileDescriptorProto)
ccTypeName := generator.CamelCaseSlice(message.TypeName())
p.P(`func (m *`, ccTypeName, `) Size() (n int) {`)
p.In()
p.P(`var l int`)
p.P(`_ = l`)
for _, field := range message.Field {
fieldname := p.GetFieldName(message, field)
nullable := gogoproto.IsNullable(field)
repeated := field.IsRepeated()
if repeated {
p.P(`if len(m.`, fieldname, `) > 0 {`)
p.In()
} else if ((!proto3 || field.IsMessage()) && nullable) || (!gogoproto.IsCustomType(field) && *field.Type == descriptor.FieldDescriptorProto_TYPE_BYTES) {
p.P(`if m.`, fieldname, ` != nil {`)
p.In()
}
packed := field.IsPacked()
_, wire := p.GoType(message, field)
wireType := wireToType(wire)
fieldNumber := field.GetNumber()
if packed {
wireType = proto.WireBytes
}
key := keySize(fieldNumber, wireType)
switch *field.Type {
case descriptor.FieldDescriptorProto_TYPE_DOUBLE,
descriptor.FieldDescriptorProto_TYPE_FIXED64,
descriptor.FieldDescriptorProto_TYPE_SFIXED64:
if packed {
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(len(m.`, fieldname, `)*8))`, `+len(m.`, fieldname, `)*8`)
} else if repeated {
p.P(`n+=`, strconv.Itoa(key+8), `*len(m.`, fieldname, `)`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.P(`n+=`, strconv.Itoa(key+8))
p.Out()
p.P(`}`)
} else if nullable {
p.P(`n+=`, strconv.Itoa(key+8))
} else {
p.P(`n+=`, strconv.Itoa(key+8))
}
case descriptor.FieldDescriptorProto_TYPE_FLOAT,
descriptor.FieldDescriptorProto_TYPE_FIXED32,
descriptor.FieldDescriptorProto_TYPE_SFIXED32:
if packed {
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(len(m.`, fieldname, `)*4))`, `+len(m.`, fieldname, `)*4`)
} else if repeated {
p.P(`n+=`, strconv.Itoa(key+4), `*len(m.`, fieldname, `)`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.P(`n+=`, strconv.Itoa(key+4))
p.Out()
p.P(`}`)
} else if nullable {
p.P(`n+=`, strconv.Itoa(key+4))
} else {
p.P(`n+=`, strconv.Itoa(key+4))
}
case descriptor.FieldDescriptorProto_TYPE_INT64,
descriptor.FieldDescriptorProto_TYPE_UINT64,
descriptor.FieldDescriptorProto_TYPE_UINT32,
descriptor.FieldDescriptorProto_TYPE_ENUM,
descriptor.FieldDescriptorProto_TYPE_INT32:
if packed {
p.P(`l = 0`)
p.P(`for _, e := range m.`, fieldname, ` {`)
p.In()
p.P(`l+=sov`, p.localName, `(uint64(e))`)
p.Out()
p.P(`}`)
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(l))+l`)
} else if repeated {
p.P(`for _, e := range m.`, fieldname, ` {`)
p.In()
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(e))`)
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(m.`, fieldname, `))`)
p.Out()
p.P(`}`)
} else if nullable {
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(*m.`, fieldname, `))`)
} else {
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(m.`, fieldname, `))`)
}
case descriptor.FieldDescriptorProto_TYPE_BOOL:
if packed {
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(len(m.`, fieldname, `)))`, `+len(m.`, fieldname, `)*1`)
} else if repeated {
p.P(`n+=`, strconv.Itoa(key+1), `*len(m.`, fieldname, `)`)
} else if proto3 {
p.P(`if m.`, fieldname, ` {`)
p.In()
p.P(`n+=`, strconv.Itoa(key+1))
p.Out()
p.P(`}`)
} else if nullable {
p.P(`n+=`, strconv.Itoa(key+1))
} else {
p.P(`n+=`, strconv.Itoa(key+1))
}
case descriptor.FieldDescriptorProto_TYPE_STRING:
if repeated {
p.P(`for _, s := range m.`, fieldname, ` { `)
p.In()
p.P(`l = len(s)`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`l=len(m.`, fieldname, `)`)
p.P(`if l > 0 {`)
p.In()
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
p.Out()
p.P(`}`)
} else if nullable {
p.P(`l=len(*m.`, fieldname, `)`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
} else {
p.P(`l=len(m.`, fieldname, `)`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
}
case descriptor.FieldDescriptorProto_TYPE_GROUP:
panic(fmt.Errorf("size does not support group %v", fieldname))
case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
if generator.IsMap(file.FileDescriptorProto, field) {
mapMsg := generator.GetMap(file.FileDescriptorProto, field)
keyField, valueField := mapMsg.GetMapFields()
_, keywire := p.GoType(nil, keyField)
_, valuewire := p.GoType(nil, valueField)
_, fieldwire := p.GoType(nil, field)
fieldKeySize := keySize(field.GetNumber(), wireToType(fieldwire))
keyKeySize := keySize(1, wireToType(keywire))
valueKeySize := keySize(2, wireToType(valuewire))
p.P(`for k, v := range m.`, fieldname, ` { `)
p.In()
p.P(`_ = k`)
p.P(`_ = v`)
sum := []string{strconv.Itoa(keyKeySize)}
switch keyField.GetType() {
case descriptor.FieldDescriptorProto_TYPE_DOUBLE,
descriptor.FieldDescriptorProto_TYPE_FIXED64,
descriptor.FieldDescriptorProto_TYPE_SFIXED64:
sum = append(sum, `8`)
case descriptor.FieldDescriptorProto_TYPE_FLOAT,
descriptor.FieldDescriptorProto_TYPE_FIXED32,
descriptor.FieldDescriptorProto_TYPE_SFIXED32:
sum = append(sum, `4`)
case descriptor.FieldDescriptorProto_TYPE_INT64,
descriptor.FieldDescriptorProto_TYPE_UINT64,
descriptor.FieldDescriptorProto_TYPE_UINT32,
descriptor.FieldDescriptorProto_TYPE_ENUM,
descriptor.FieldDescriptorProto_TYPE_INT32:
sum = append(sum, `sov`+p.localName+`(uint64(k))`)
case descriptor.FieldDescriptorProto_TYPE_BOOL:
sum = append(sum, `1`)
case descriptor.FieldDescriptorProto_TYPE_STRING,
descriptor.FieldDescriptorProto_TYPE_BYTES:
sum = append(sum, `len(k)+sov`+p.localName+`(uint64(len(k)))`)
case descriptor.FieldDescriptorProto_TYPE_SINT32,
descriptor.FieldDescriptorProto_TYPE_SINT64:
sum = append(sum, `soz`+p.localName+`(uint64(k))`)
}
sum = append(sum, strconv.Itoa(valueKeySize))
switch valueField.GetType() {
case descriptor.FieldDescriptorProto_TYPE_DOUBLE,
descriptor.FieldDescriptorProto_TYPE_FIXED64,
descriptor.FieldDescriptorProto_TYPE_SFIXED64:
sum = append(sum, strconv.Itoa(8))
case descriptor.FieldDescriptorProto_TYPE_FLOAT,
descriptor.FieldDescriptorProto_TYPE_FIXED32,
descriptor.FieldDescriptorProto_TYPE_SFIXED32:
sum = append(sum, strconv.Itoa(4))
case descriptor.FieldDescriptorProto_TYPE_INT64,
descriptor.FieldDescriptorProto_TYPE_UINT64,
descriptor.FieldDescriptorProto_TYPE_UINT32,
descriptor.FieldDescriptorProto_TYPE_ENUM,
descriptor.FieldDescriptorProto_TYPE_INT32:
sum = append(sum, `sov`+p.localName+`(uint64(v))`)
case descriptor.FieldDescriptorProto_TYPE_BOOL:
sum = append(sum, `1`)
case descriptor.FieldDescriptorProto_TYPE_STRING,
descriptor.FieldDescriptorProto_TYPE_BYTES:
sum = append(sum, `len(v)+sov`+p.localName+`(uint64(len(v)))`)
case descriptor.FieldDescriptorProto_TYPE_SINT32,
descriptor.FieldDescriptorProto_TYPE_SINT64:
sum = append(sum, `soz`+p.localName+`(uint64(v))`)
case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
p.P(`l = 0`)
p.P(`if v != nil {`)
p.In()
p.P(`l= v.Size()`)
p.Out()
p.P(`}`)
sum = append(sum, `l+sov`+p.localName+`(uint64(l))`)
}
p.P(`mapEntrySize := `, strings.Join(sum, "+"))
p.P(`n+=mapEntrySize+`, fieldKeySize, `+sov`, p.localName, `(uint64(mapEntrySize))`)
p.Out()
p.P(`}`)
} else if repeated {
p.P(`for _, e := range m.`, fieldname, ` { `)
p.In()
p.P(`l=e.Size()`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
p.Out()
p.P(`}`)
} else {
p.P(`l=m.`, fieldname, `.Size()`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
}
case descriptor.FieldDescriptorProto_TYPE_BYTES:
if !gogoproto.IsCustomType(field) {
if repeated {
p.P(`for _, b := range m.`, fieldname, ` { `)
p.In()
p.P(`l = len(b)`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`l=len(m.`, fieldname, `)`)
p.P(`if l > 0 {`)
p.In()
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
p.Out()
p.P(`}`)
} else {
p.P(`l=len(m.`, fieldname, `)`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
}
} else {
if repeated {
p.P(`for _, e := range m.`, fieldname, ` { `)
p.In()
p.P(`l=e.Size()`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
p.Out()
p.P(`}`)
} else {
p.P(`l=m.`, fieldname, `.Size()`)
p.P(`n+=`, strconv.Itoa(key), `+l+sov`, p.localName, `(uint64(l))`)
}
}
case descriptor.FieldDescriptorProto_TYPE_SINT32,
descriptor.FieldDescriptorProto_TYPE_SINT64:
if packed {
p.P(`l = 0`)
p.P(`for _, e := range m.`, fieldname, ` {`)
p.In()
p.P(`l+=soz`, p.localName, `(uint64(e))`)
p.Out()
p.P(`}`)
p.P(`n+=`, strconv.Itoa(key), `+sov`, p.localName, `(uint64(l))+l`)
} else if repeated {
p.P(`for _, e := range m.`, fieldname, ` {`)
p.In()
p.P(`n+=`, strconv.Itoa(key), `+soz`, p.localName, `(uint64(e))`)
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.P(`n+=`, strconv.Itoa(key), `+soz`, p.localName, `(uint64(m.`, fieldname, `))`)
p.Out()
p.P(`}`)
} else if nullable {
p.P(`n+=`, strconv.Itoa(key), `+soz`, p.localName, `(uint64(*m.`, fieldname, `))`)
} else {
p.P(`n+=`, strconv.Itoa(key), `+soz`, p.localName, `(uint64(m.`, fieldname, `))`)
}
default:
panic("not implemented")
}
if ((!proto3 || field.IsMessage()) && nullable) || repeated || (!gogoproto.IsCustomType(field) && *field.Type == descriptor.FieldDescriptorProto_TYPE_BYTES) {
p.Out()
p.P(`}`)
}
}
if message.DescriptorProto.HasExtension() {
p.P(`if m.XXX_extensions != nil {`)
p.In()
if gogoproto.HasExtensionsMap(file.FileDescriptorProto, message.DescriptorProto) {
p.P(`n += `, protoPkg.Use(), `.SizeOfExtensionMap(m.XXX_extensions)`)
} else {
p.P(`n+=len(m.XXX_extensions)`)
}
p.Out()
p.P(`}`)
}
if gogoproto.HasUnrecognized(file.FileDescriptorProto, message.DescriptorProto) {
p.P(`if m.XXX_unrecognized != nil {`)
p.In()
p.P(`n+=len(m.XXX_unrecognized)`)
p.Out()
p.P(`}`)
}
p.P(`return n`)
p.Out()
p.P(`}`)
p.P()
}
if !p.atleastOne {
return
}
p.sizeVarint()
p.sizeZigZag()
}