Esempio n. 1
0
func (p *plugin) Generate(file *generator.FileDescriptor) {
	for _, msg := range file.Messages() {
		for _, os := range overwriters {
			possible := true
			for _, overwriter := range os {
				if overwriter(file.FileDescriptorProto, msg.DescriptorProto) {
					possible = false
				}
			}
			if possible {
				p.checkOverwrite(msg, os)
			}
		}
		p.checkNameSpace(msg)
		for _, field := range msg.GetField() {
			if gogoproto.IsEmbed(field) && gogoproto.IsCustomName(field) {
				fmt.Fprintf(os.Stderr, "ERROR: field %v with custom name %v cannot be embedded", *field.Name, gogoproto.GetCustomName(field))
				os.Exit(1)
			}
		}
		p.checkRepeated(msg)
	}
	for _, e := range file.GetExtension() {
		if gogoproto.IsEmbed(e) {
			fmt.Fprintf(os.Stderr, "ERROR: extended field %v cannot be embedded", generator.CamelCase(*e.Name))
			os.Exit(1)
		}
	}
}
Esempio n. 2
0
//Collapses a proto fieldpath into a go fieldpath.  They are different if some of the fields in the fieldpath have been embedded.
func Collapse(rootPkg string, rootMsg string, path string, descriptorSet *descriptor.FileDescriptorSet) (string, error) {
	msg := descriptorSet.GetMessage(rootPkg, rootMsg)
	if msg == nil {
		return "", &errUndefined{rootPkg, rootMsg, path}
	}
	paths := strings.Split(path, ".")
	if len(paths) == 0 {
		return "", &errUndefined{rootPkg, rootMsg, path}
	}
	if len(paths) == 1 {
		return path, nil
	}
	for _, f := range msg.GetField() {
		if f.GetName() != paths[0] {
			continue
		}
		if f.IsMessage() {
			newRootPkg, newRootMsg := descriptorSet.FindMessage(rootPkg, rootMsg, f.GetName())
			if len(newRootPkg) == 0 || len(newRootMsg) == 0 {
				return "", &errUndefined{rootPkg, rootMsg, path}
			}
			newPath, err := Collapse(newRootPkg, newRootMsg, strings.Join(paths[1:], "."), descriptorSet)
			if err != nil {
				return "", err
			}
			if gogoproto.IsEmbed(f) {
				return newPath, nil
			} else {
				return paths[0] + "." + newPath, nil
			}
		}
	}
	if msg.IsExtendable() {
		newRootPkg, f := descriptorSet.FindExtension(rootPkg, rootMsg, paths[0])
		if f == nil {
			return "", &errUndefined{rootPkg, rootMsg, path}
		}
		typeName := f.GetTypeName()
		typeNames := strings.Split(typeName, ".")
		newRootMsg := typeName
		if len(typeNames) > 1 {
			newRootMsg = typeNames[len(typeNames)-1]
		}
		newPath, err := Collapse(newRootPkg, newRootMsg, strings.Join(paths[1:], "."), descriptorSet)
		if err != nil {
			return "", err
		}
		if gogoproto.IsEmbed(f) {
			return newPath, nil
		} else {
			return paths[0] + "." + newPath, nil
		}
	}
	return "", nil
}
Esempio n. 3
0
func (p *plugin) checkNameSpace(message *generator.Descriptor) map[string]bool {
	ccTypeName := generator.CamelCaseSlice(message.TypeName())
	names := make(map[string]bool)
	for _, field := range message.Field {
		fieldname := generator.CamelCase(*field.Name)
		if gogoproto.IsEmbed(field) {
			desc := p.ObjectNamed(field.GetTypeName())
			moreNames := p.checkNameSpace(desc.(*generator.Descriptor))
			for another := range moreNames {
				if names[another] {
					fmt.Fprintf(os.Stderr, "ERROR: duplicate embedded fieldname %v in type %v\n", fieldname, ccTypeName)
					os.Exit(1)
				}
				names[another] = true
			}
		} else {
			if names[fieldname] {
				fmt.Fprintf(os.Stderr, "ERROR: duplicate embedded fieldname %v in type %v\n", fieldname, ccTypeName)
				os.Exit(1)
			}
			names[fieldname] = true
		}
	}
	return names
}
Esempio n. 4
0
func (g *Generator) GetFieldName(message *Descriptor, field *descriptor.FieldDescriptorProto) string {
	goTyp, _ := g.GoType(message, field)
	fieldname := CamelCase(*field.Name)
	if gogoproto.IsCustomName(field) {
		fieldname = gogoproto.GetCustomName(field)
	}
	if gogoproto.IsEmbed(field) {
		fieldname = EmbedFieldName(goTyp)
	}
	return fieldname
}
Esempio n. 5
0
func (p *plugin) checkRepeated(message *generator.Descriptor) {
	ccTypeName := generator.CamelCaseSlice(message.TypeName())
	for _, field := range message.Field {
		if !gogoproto.IsEmbed(field) {
			continue
		}
		if !field.IsRepeated() {
			continue
		}
		fieldname := generator.CamelCase(*field.Name)
		fmt.Fprintf(os.Stderr, "ERROR: found repeated embedded field %s in message %s\n", fieldname, ccTypeName)
		os.Exit(1)
	}
}
Esempio n. 6
0
func (p *plugin) checkOverwrite(message *generator.Descriptor, enablers map[string]gogoproto.EnableFunc) {
	ccTypeName := generator.CamelCaseSlice(message.TypeName())
	names := []string{}
	for name := range enablers {
		names = append(names, name)
	}
	for _, field := range message.Field {
		if gogoproto.IsEmbed(field) {
			fieldname := generator.CamelCase(*field.Name)
			desc := p.ObjectNamed(field.GetTypeName())
			msg := desc.(*generator.Descriptor)
			for errStr, enabled := range enablers {
				if enabled(msg.File(), msg.DescriptorProto) {
					fmt.Fprintf(os.Stderr, "WARNING: found non-%v %v with embedded %v %v\n", names, ccTypeName, errStr, fieldname)
				}
			}
			p.checkOverwrite(msg, enablers)
		}
	}
}
Esempio n. 7
0
func (p *stringer) Generate(file *generator.FileDescriptor) {
	p.PluginImports = generator.NewPluginImports(p.Generator)
	p.atleastOne = false

	p.localName = generator.FileName(file)

	fmtPkg := p.NewImport("fmt")
	stringsPkg := p.NewImport("strings")
	reflectPkg := p.NewImport("reflect")
	for _, message := range file.Messages() {
		if !gogoproto.IsStringer(file.FileDescriptorProto, message.DescriptorProto) {
			continue
		}
		if gogoproto.EnabledGoStringer(file.FileDescriptorProto, message.DescriptorProto) {
			panic("old string method needs to be disabled, please use gogoproto.goproto_stringer or gogoproto.goproto_stringer_all and set it to false")
		}
		p.atleastOne = true
		ccTypeName := generator.CamelCaseSlice(message.TypeName())
		p.P(`func (this *`, ccTypeName, `) String() string {`)
		p.In()
		p.P(`if this == nil {`)
		p.In()
		p.P(`return "nil"`)
		p.Out()
		p.P(`}`)
		p.P("s := ", stringsPkg.Use(), ".Join([]string{`&", ccTypeName, "{`,")
		for _, field := range message.Field {
			nullable := gogoproto.IsNullable(field)
			repeated := field.IsRepeated()
			fieldname := generator.CamelCase(*field.Name)
			if field.IsMessage() || p.IsGroup(field) {
				desc := p.ObjectNamed(field.GetTypeName())
				msgname := p.TypeName(desc)
				msgnames := strings.Split(msgname, ".")
				typeName := msgnames[len(msgnames)-1]
				if gogoproto.IsEmbed(field) {
					fieldname = typeName
				}
				if nullable {
					p.P("`", fieldname, ":`", ` + `, stringsPkg.Use(), `.Replace(`, fmtPkg.Use(), `.Sprintf("%v", this.`, fieldname, `), "`, typeName, `","`, msgname, `"`, ", 1) + `,", "`,")
				} else if repeated {
					p.P("`", fieldname, ":`", ` + `, stringsPkg.Use(), `.Replace(`, stringsPkg.Use(), `.Replace(`, fmtPkg.Use(), `.Sprintf("%v", this.`, fieldname, `), "`, typeName, `","`, msgname, `"`, ", 1),`&`,``,1) + `,", "`,")
				} else {
					p.P("`", fieldname, ":`", ` + `, stringsPkg.Use(), `.Replace(`, stringsPkg.Use(), `.Replace(this.`, fieldname, `.String(), "`, typeName, `","`, msgname, `"`, ", 1),`&`,``,1) + `,", "`,")
				}
			} else {
				if nullable && !repeated {
					p.P("`", fieldname, ":`", ` + valueToString`, p.localName, `(this.`, fieldname, ") + `,", "`,")
				} else {
					p.P("`", fieldname, ":`", ` + `, fmtPkg.Use(), `.Sprintf("%v", this.`, fieldname, ") + `,", "`,")
				}
			}
		}
		if message.DescriptorProto.HasExtension() {
			p.P("`XXX_extensions:` + ", fmtPkg.Use(), `.Sprintf("%v", this.XXX_extensions) + `, "`,`,")
		}
		p.P("`XXX_unrecognized:` + ", fmtPkg.Use(), `.Sprintf("%v", this.XXX_unrecognized) + `, "`,`,")
		p.P("`}`,")
		p.P(`}`, `,""`, ")")
		p.P(`return s`)
		p.Out()
		p.P(`}`)
	}

	if !p.atleastOne {
		return
	}

	p.P(`func valueToString`, p.localName, `(v interface{}) 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("*%v", pv)`)
	p.Out()
	p.P(`}`)

}
Esempio n. 8
0
func (p *size) Generate(file *generator.FileDescriptor) {
	p.PluginImports = generator.NewPluginImports(p.Generator)
	p.atleastOne = false
	p.localName = generator.FileName(file)
	protoPkg := p.NewImport("code.google.com/p/gogoprotobuf/proto")
	for _, message := range file.Messages() {
		if !gogoproto.IsSizer(file.FileDescriptorProto, message.DescriptorProto) {
			continue
		}
		p.atleastOne = true

		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 := generator.CamelCase(*field.Name)
			if field.IsMessage() {
				desc := p.ObjectNamed(field.GetTypeName())
				msgname := p.TypeName(desc)
				msgnames := strings.Split(msgname, ".")
				typeName := msgnames[len(msgnames)-1]
				if gogoproto.IsEmbed(field) {
					fieldname = typeName
				}
			}
			nullable := gogoproto.IsNullable(field)
			repeated := field.IsRepeated()
			if repeated {
				p.P(`if len(m.`, fieldname, `) > 0 {`)
				p.In()
			} else if nullable {
				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 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 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_INT32,
				descriptor.FieldDescriptorProto_TYPE_UINT32,
				descriptor.FieldDescriptorProto_TYPE_ENUM:
				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 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 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 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 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 {
						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 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 nullable || repeated {
				p.Out()
				p.P(`}`)
			}
		}
		if message.DescriptorProto.HasExtension() {
			p.P(`if m.XXX_extensions != nil {`)
			p.In()
			p.P(`n += `, protoPkg.Use(), `.SizeOfExtensionMap(m.XXX_extensions)`)
			p.Out()
			p.P(`}`)
		}
		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(`}`)
	}

	if !p.atleastOne {
		return
	}

	p.sizeVarint()
	p.sizeZigZag()

}
Esempio n. 9
0
func (p *marshalto) Generate(file *generator.FileDescriptor) {
	numGen := NewNumGen()
	p.PluginImports = generator.NewPluginImports(p.Generator)
	p.atleastOne = false
	p.localName = generator.FileName(file)

	protoPkg := p.NewImport("code.google.com/p/gogoprotobuf/proto")
	p.unsafePkg = p.NewImport("unsafe")

	for _, message := range file.Messages() {
		if !gogoproto.IsUnsafeMarshaler(file.FileDescriptorProto, message.DescriptorProto) {
			continue
		}
		ccTypeName := generator.CamelCaseSlice(message.TypeName())
		if gogoproto.IsMarshaler(file.FileDescriptorProto, message.DescriptorProto) {
			panic(fmt.Sprintf("unsafe_marshaler and marshaler enabled for %v", ccTypeName))
		}
		p.atleastOne = true

		p.P(`func (m *`, ccTypeName, `) Marshal() (data []byte, err error) {`)
		p.In()
		p.P(`size := m.Size()`)
		p.P(`data = make([]byte, size)`)
		p.P(`n, err := m.MarshalTo(data)`)
		p.P(`if err != nil {`)
		p.In()
		p.P(`return nil, err`)
		p.Out()
		p.P(`}`)
		p.P(`return data[:n], nil`)
		p.Out()
		p.P(`}`)
		p.P(``)
		p.P(`func (m *`, ccTypeName, `) MarshalTo(data []byte) (n int, err error) {`)
		p.In()
		p.P(`var i int`)
		p.P(`_ = i`)
		p.P(`var l int`)
		p.P(`_ = l`)
		for _, field := range message.Field {
			fieldname := generator.CamelCase(*field.Name)
			if field.IsMessage() {
				desc := p.ObjectNamed(field.GetTypeName())
				msgname := p.TypeName(desc)
				msgnames := strings.Split(msgname, ".")
				typeName := msgnames[len(msgnames)-1]
				if gogoproto.IsEmbed(field) {
					fieldname = typeName
				}
			}
			nullable := gogoproto.IsNullable(field)
			repeated := field.IsRepeated()
			if repeated {
				p.P(`if len(m.`, fieldname, `) > 0 {`)
				p.In()
			} else if nullable {
				p.P(`if m.`, fieldname, ` != nil {`)
				p.In()
			}
			packed := field.IsPacked()
			wireType := field.WireType()
			fieldNumber := field.GetNumber()
			if packed {
				wireType = proto.WireBytes
			}
			switch *field.Type {
			case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
				if packed {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`len(m.`, fieldname, `) * 8`)
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.unsafeFixed64("num", "float64")
					p.Out()
					p.P(`}`)
				} else if repeated {
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed64("num", "float64")
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed64(`*m.`+fieldname, `float64`)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed64(`m.`+fieldname, "float64")
				}
			case descriptor.FieldDescriptorProto_TYPE_FLOAT:
				if packed {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`len(m.`, fieldname, `) * 4`)
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.unsafeFixed32("num", "float32")
					p.Out()
					p.P(`}`)
				} else if repeated {
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed32("num", "float32")
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed32(`*m.`+fieldname, "float32")
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed32(`m.`+fieldname, `float32`)
				}
			case descriptor.FieldDescriptorProto_TYPE_INT64,
				descriptor.FieldDescriptorProto_TYPE_UINT64,
				descriptor.FieldDescriptorProto_TYPE_INT32,
				descriptor.FieldDescriptorProto_TYPE_UINT32,
				descriptor.FieldDescriptorProto_TYPE_ENUM:
				if packed {
					jvar := "j" + numGen.Next()
					p.P(`data`, numGen.Next(), ` := make([]byte, len(m.`, fieldname, `)*10)`)
					p.P(`var `, jvar, ` int`)
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.P(`for num >= 1<<7 {`)
					p.In()
					p.P(`data`, numGen.Current(), `[`, jvar, `] = uint8(uint64(num)&0x7f|0x80)`)
					p.P(`num >>= 7`)
					p.P(jvar, `++`)
					p.Out()
					p.P(`}`)
					p.P(`data`, numGen.Current(), `[`, jvar, `] = uint8(num)`)
					p.P(jvar, `++`)
					p.Out()
					p.P(`}`)
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(jvar)
					p.P(`i += copy(data[i:], data`, numGen.Current(), `[:`, jvar, `])`)
				} else if repeated {
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.encodeVarint("num")
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`*m.`, fieldname)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`m.`, fieldname)
				}
			case descriptor.FieldDescriptorProto_TYPE_FIXED64,
				descriptor.FieldDescriptorProto_TYPE_SFIXED64:
				typeName := "int64"
				if *field.Type == descriptor.FieldDescriptorProto_TYPE_FIXED64 {
					typeName = "uint64"
				}
				if packed {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`len(m.`, fieldname, `) * 8`)
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.unsafeFixed64("num", typeName)
					p.Out()
					p.P(`}`)
				} else if repeated {
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed64("num", typeName)
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed64("*m."+fieldname, typeName)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed64("m."+fieldname, typeName)
				}
			case descriptor.FieldDescriptorProto_TYPE_FIXED32,
				descriptor.FieldDescriptorProto_TYPE_SFIXED32:
				typeName := "int32"
				if *field.Type == descriptor.FieldDescriptorProto_TYPE_FIXED32 {
					typeName = "uint32"
				}
				if packed {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`len(m.`, fieldname, `) * 4`)
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.unsafeFixed32("num", typeName)
					p.Out()
					p.P(`}`)
				} else if repeated {
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed32("num", typeName)
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed32("*m."+fieldname, typeName)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.unsafeFixed32("m."+fieldname, typeName)
				}
			case descriptor.FieldDescriptorProto_TYPE_BOOL:
				if packed {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`len(m.`, fieldname, `)`)
					p.P(`for _, b := range m.`, fieldname, ` {`)
					p.In()
					p.P(`if b {`)
					p.In()
					p.P(`data[i] = 1`)
					p.Out()
					p.P(`} else {`)
					p.In()
					p.P(`data[i] = 0`)
					p.Out()
					p.P(`}`)
					p.P(`i++`)
					p.Out()
					p.P(`}`)
				} else if repeated {
					p.P(`for _, b := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.P(`if b {`)
					p.In()
					p.P(`data[i] = 1`)
					p.Out()
					p.P(`} else {`)
					p.In()
					p.P(`data[i] = 0`)
					p.Out()
					p.P(`}`)
					p.P(`i++`)
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.P(`if *m.`, fieldname, ` {`)
					p.In()
					p.P(`data[i] = 1`)
					p.Out()
					p.P(`} else {`)
					p.In()
					p.P(`data[i] = 0`)
					p.Out()
					p.P(`}`)
					p.P(`i++`)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.P(`if m.`, fieldname, ` {`)
					p.In()
					p.P(`data[i] = 1`)
					p.Out()
					p.P(`} else {`)
					p.In()
					p.P(`data[i] = 0`)
					p.Out()
					p.P(`}`)
					p.P(`i++`)
				}
			case descriptor.FieldDescriptorProto_TYPE_STRING:
				if repeated {
					p.P(`for _, s := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.P(`l = len(s)`)
					p.encodeVarint("l")
					p.P(`i+=copy(data[i:], s)`)
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`len(*m.`, fieldname, `)`)
					p.P(`i+=copy(data[i:], *m.`, fieldname, `)`)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`len(m.`, fieldname, `)`)
					p.P(`i+=copy(data[i:], m.`, fieldname, `)`)
				}
			case descriptor.FieldDescriptorProto_TYPE_GROUP:
				panic(fmt.Errorf("marshaler does not support group %v", fieldname))
			case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
				if repeated {
					p.P(`for _, msg := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.callVarint("msg.Size()")
					p.P(`n, err := msg.MarshalTo(data[i:])`)
					p.P(`if err != nil {`)
					p.In()
					p.P(`return 0, err`)
					p.Out()
					p.P(`}`)
					p.P(`i+=n`)
					p.Out()
					p.P(`}`)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`m.`, fieldname, `.Size()`)
					p.P(`n`, numGen.Next(), `, err := m.`, fieldname, `.MarshalTo(data[i:])`)
					p.P(`if err != nil {`)
					p.In()
					p.P(`return 0, err`)
					p.Out()
					p.P(`}`)
					p.P(`i+=n`, numGen.Current())
				}
			case descriptor.FieldDescriptorProto_TYPE_BYTES:
				if !gogoproto.IsCustomType(field) {
					if repeated {
						p.P(`for _, b := range m.`, fieldname, ` {`)
						p.In()
						p.encodeKey(fieldNumber, wireType)
						p.callVarint("len(b)")
						p.P(`i+=copy(data[i:], b)`)
						p.Out()
						p.P(`}`)
					} else {
						p.encodeKey(fieldNumber, wireType)
						p.callVarint(`len(m.`, fieldname, `)`)
						p.P(`i+=copy(data[i:], m.`, fieldname, `)`)
					}
				} else {
					if repeated {
						p.P(`for _, msg := range m.`, fieldname, ` {`)
						p.In()
						p.encodeKey(fieldNumber, wireType)
						p.callVarint(`msg.Size()`)
						p.P(`n, err := msg.MarshalTo(data[i:])`)
						p.P(`if err != nil {`)
						p.In()
						p.P(`return 0, err`)
						p.Out()
						p.P(`}`)
						p.P(`i+=n`)
						p.Out()
						p.P(`}`)
					} else {
						p.encodeKey(fieldNumber, wireType)
						p.callVarint(`m.`, fieldname, `.Size()`)
						p.P(`n`, numGen.Next(), `, err := m.`, fieldname, `.MarshalTo(data[i:])`)
						p.P(`if err != nil {`)
						p.In()
						p.P(`return 0, err`)
						p.Out()
						p.P(`}`)
						p.P(`i+=n`, numGen.Current())
					}
				}
			case descriptor.FieldDescriptorProto_TYPE_SINT32:
				if packed {
					datavar := "data" + numGen.Next()
					jvar := "j" + numGen.Next()
					p.P(datavar, ` := make([]byte, len(m.`, fieldname, ")*5)")
					p.P(`var `, jvar, ` int`)
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					xvar := "x" + numGen.Next()
					p.P(xvar, ` := (uint32(num) << 1) ^ uint32((num >> 31))`)
					p.P(`for `, xvar, ` >= 1<<7 {`)
					p.In()
					p.P(datavar, `[`, jvar, `] = uint8(uint64(`, xvar, `)&0x7f|0x80)`)
					p.P(jvar, `++`)
					p.P(xvar, ` >>= 7`)
					p.Out()
					p.P(`}`)
					p.P(datavar, `[`, jvar, `] = uint8(`, xvar, `)`)
					p.P(jvar, `++`)
					p.Out()
					p.P(`}`)
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(jvar)
					p.P(`i+=copy(data[i:], `, datavar, `[:`, jvar, `])`)
				} else if repeated {
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.P(`x`, numGen.Next(), ` := (uint32(num) << 1) ^ uint32((num >> 31))`)
					p.encodeVarint("x" + numGen.Current())
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`(uint32(*m.`, fieldname, `) << 1) ^ uint32((*m.`, fieldname, ` >> 31))`)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`(uint32(m.`, fieldname, `) << 1) ^ uint32((m.`, fieldname, ` >> 31))`)
				}
			case descriptor.FieldDescriptorProto_TYPE_SINT64:
				if packed {
					jvar := "j" + numGen.Next()
					xvar := "x" + numGen.Next()
					datavar := "data" + numGen.Next()
					p.P(`var `, jvar, ` int`)
					p.P(datavar, ` := make([]byte, len(m.`, fieldname, `)*10)`)
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.P(xvar, ` := (uint64(num) << 1) ^ uint64((num >> 63))`)
					p.P(`for `, xvar, ` >= 1<<7 {`)
					p.In()
					p.P(datavar, `[`, jvar, `] = uint8(uint64(`, xvar, `)&0x7f|0x80)`)
					p.P(jvar, `++`)
					p.P(xvar, ` >>= 7`)
					p.Out()
					p.P(`}`)
					p.P(datavar, `[`, jvar, `] = uint8(`, xvar, `)`)
					p.P(jvar, `++`)
					p.Out()
					p.P(`}`)
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(jvar)
					p.P(`i+=copy(data[i:], `, datavar, `[:`, jvar, `])`)
				} else if repeated {
					p.P(`for _, num := range m.`, fieldname, ` {`)
					p.In()
					p.encodeKey(fieldNumber, wireType)
					p.P(`x`, numGen.Next(), ` := (uint64(num) << 1) ^ uint64((num >> 63))`)
					p.encodeVarint("x" + numGen.Current())
					p.Out()
					p.P(`}`)
				} else if nullable {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`(uint64(*m.`, fieldname, `) << 1) ^ uint64((*m.`, fieldname, ` >> 63))`)
				} else {
					p.encodeKey(fieldNumber, wireType)
					p.callVarint(`(uint64(m.`, fieldname, `) << 1) ^ uint64((m.`, fieldname, ` >> 63))`)
				}
			default:
				panic("not implemented")
			}
			if nullable || repeated {
				p.Out()
				p.P(`}`)
			}
		}
		if message.DescriptorProto.HasExtension() {
			p.P(`if len(m.XXX_extensions) > 0 {`)
			p.In()
			p.P(`n, err := `, protoPkg.Use(), `.EncodeExtensionMap(m.XXX_extensions, data[i:])`)
			p.P(`if err != nil {`)
			p.In()
			p.P(`return 0, err`)
			p.Out()
			p.P(`}`)
			p.P(`i+=n`)
			p.Out()
			p.P(`}`)
		}
		p.P(`if m.XXX_unrecognized != nil {`)
		p.In()
		p.P(`i+=copy(data[i:], m.XXX_unrecognized)`)
		p.Out()
		p.P(`}`)
		p.P(`return i, nil`)
		p.Out()
		p.P(`}`)
	}

	if p.atleastOne {
		p.P(`func encodeFixed64`, p.localName, `(data []byte, offset int, v uint64) int {`)
		p.In()
		p.P(`data[offset] = uint8(v)`)
		p.P(`data[offset+1] = uint8(v >> 8)`)
		p.P(`data[offset+2] = uint8(v >> 16)`)
		p.P(`data[offset+3] = uint8(v >> 24)`)
		p.P(`data[offset+4] = uint8(v >> 32)`)
		p.P(`data[offset+5] = uint8(v >> 40)`)
		p.P(`data[offset+6] = uint8(v >> 48)`)
		p.P(`data[offset+7] = uint8(v >> 56)`)
		p.P(`return offset+8`)
		p.Out()
		p.P(`}`)

		p.P(`func encodeFixed32`, p.localName, `(data []byte, offset int, v uint32) int {`)
		p.In()
		p.P(`data[offset] = uint8(v)`)
		p.P(`data[offset+1] = uint8(v >> 8)`)
		p.P(`data[offset+2] = uint8(v >> 16)`)
		p.P(`data[offset+3] = uint8(v >> 24)`)
		p.P(`return offset+4`)
		p.Out()
		p.P(`}`)

		p.P(`func encodeVarint`, p.localName, `(data []byte, offset int, v uint64) int {`)
		p.In()
		p.P(`for v >= 1<<7 {`)
		p.In()
		p.P(`data[offset] = uint8(v&0x7f|0x80)`)
		p.P(`v >>= 7`)
		p.P(`offset++`)
		p.Out()
		p.P(`}`)
		p.P(`data[offset] = uint8(v)`)
		p.P(`return offset+1`)
		p.Out()
		p.P(`}`)
	}

}
Esempio n. 10
0
func (p *plugin) GenerateField(message *generator.Descriptor, field *descriptor.FieldDescriptorProto) {
	goTyp, _ := p.GoType(message, field)
	fieldname := generator.CamelCase(*field.Name)
	if field.IsMessage() && gogoproto.IsEmbed(field) {
		fieldname = generator.EmbedFieldName(goTyp)
	}
	goTypName := generator.GoTypeToName(goTyp)
	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()
			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() {
			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.`, fieldname, `[i] = `, val)
				p.Out()
				p.P(`}`)
			} else if gogoproto.IsNullable(field) {
				p.P(p.varGen.Next(), ` := `, val)
				p.P(`this.`, fieldname, ` = &`, p.varGen.Current())
			} else {
				p.P(`this.`, fieldname, ` = `, val)
			}
		} else if gogoproto.IsCustomType(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)"
			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) {
				p.P(p.varGen.Next(), `:= `, val)
				p.P(`this.`, fieldname, ` = &`, p.varGen.Current())
			} else {
				p.P(`this.`, fieldname, ` = `, val)
			}
		} 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))
				p.Out()
				p.P(`}`)
			} else if gogoproto.IsNullable(field) {
				p.P(p.varGen.Next(), ` := `, value(typName))
				p.P(`this.`, fieldname, ` = &`, p.varGen.Current())
			} else {
				p.P(`this.`, fieldname, ` = `, value(typName))
			}
		}
	}
}
Esempio n. 11
0
func (p *unmarshal) Generate(file *generator.FileDescriptor) {
	p.PluginImports = generator.NewPluginImports(p.Generator)
	p.atleastOne = false

	p.ioPkg = p.NewImport("io")
	p.unsafePkg = p.NewImport("unsafe")
	protoPkg := p.NewImport("code.google.com/p/gogoprotobuf/proto")

	for _, message := range file.Messages() {
		if !gogoproto.IsUnsafeUnmarshaler(file.FileDescriptorProto, message.DescriptorProto) {
			continue
		}
		ccTypeName := generator.CamelCaseSlice(message.TypeName())
		if gogoproto.IsUnmarshaler(file.FileDescriptorProto, message.DescriptorProto) {
			panic(fmt.Sprintf("unsafe_unmarshaler and unmarshaler enabled for %v", ccTypeName))
		}
		p.atleastOne = true

		p.P(`func (m *`, ccTypeName, `) Unmarshal(data []byte) error {`)
		p.In()
		p.P(`l := len(data)`)
		p.P(`index := 0`)
		p.P(`for index < l {`)
		p.In()
		p.P(`var wire uint64`)
		p.decodeVarint("wire", "uint64")
		p.P(`fieldNum := int32(wire >> 3)`)
		if len(message.Field) > 0 {
			p.P(`wireType := int(wire & 0x7)`)
		}
		p.P(`switch fieldNum {`)
		p.In()
		for _, field := range message.Field {
			fieldname := generator.CamelCase(*field.Name)
			repeated := field.IsRepeated()
			nullable := gogoproto.IsNullable(field)
			packed := field.IsPacked()
			p.P(`case `, strconv.Itoa(int(field.GetNumber())), `:`)
			p.In()
			wireType := field.WireType()
			if packed {
				p.P(`if wireType != `, strconv.Itoa(proto.WireBytes), `{`)
				p.In()
				p.P(`return proto.ErrWrongType`)
				p.Out()
				p.P(`}`)
				p.P(`var packedLen int`)
				p.decodeVarint("packedLen", "int")
				p.P(`postIndex := index + packedLen`)
				p.P(`if postIndex > l {`)
				p.In()
				p.P(`return `, p.ioPkg.Use(), `.ErrUnexpectedEOF`)
				p.Out()
				p.P(`}`)
				p.P(`for index < postIndex {`)
				p.In()
			} else {
				p.P(`if wireType != `, strconv.Itoa(wireType), `{`)
				p.In()
				p.P(`return proto.ErrWrongType`)
				p.Out()
				p.P(`}`)
			}
			switch *field.Type {
			case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
				if repeated {
					p.P(`var v float64`)
					p.unsafeFixed64("v", "float64")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v float64`)
					p.unsafeFixed64("v", "float64")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.unsafeFixed64(`m.`+fieldname, "float64")
				}
			case descriptor.FieldDescriptorProto_TYPE_FLOAT:
				if repeated {
					p.P(`var v float32`)
					p.unsafeFixed32("v", "float32")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v float32`)
					p.unsafeFixed32("v", "float32")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.unsafeFixed32("m."+fieldname, "float32")
				}
			case descriptor.FieldDescriptorProto_TYPE_INT64:
				if repeated {
					p.P(`var v int64`)
					p.decodeVarint("v", "int64")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v int64`)
					p.decodeVarint("v", "int64")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.decodeVarint("m."+fieldname, "int64")
				}
			case descriptor.FieldDescriptorProto_TYPE_UINT64:
				if repeated {
					p.P(`var v uint64`)
					p.decodeVarint("v", "uint64")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v uint64`)
					p.decodeVarint("v", "uint64")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.decodeVarint("m."+fieldname, "uint64")
				}
			case descriptor.FieldDescriptorProto_TYPE_INT32:
				if repeated {
					p.P(`var v int32`)
					p.decodeVarint("v", "int32")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v int32`)
					p.decodeVarint("v", "int32")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.decodeVarint("m."+fieldname, "int32")
				}
			case descriptor.FieldDescriptorProto_TYPE_FIXED64:
				if repeated {
					p.P(`var v uint64`)
					p.unsafeFixed64("v", "uint64")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v uint64`)
					p.unsafeFixed64("v", "uint64")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.unsafeFixed64("m."+fieldname, "uint64")
				}
			case descriptor.FieldDescriptorProto_TYPE_FIXED32:
				if repeated {
					p.P(`var v uint32`)
					p.unsafeFixed32("v", "uint32")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v uint32`)
					p.unsafeFixed32("v", "uint32")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.unsafeFixed32("m."+fieldname, "uint32")
				}
			case descriptor.FieldDescriptorProto_TYPE_BOOL:
				if repeated {
					p.P(`var v int`)
					p.decodeVarint("v", "int")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, bool(v != 0))`)
				} else if nullable {
					p.P(`var v int`)
					p.decodeVarint("v", "int")
					p.P(`b := bool(v != 0)`)
					p.P(`m.`, fieldname, ` = &b`)
				} else {
					p.P(`var v int`)
					p.decodeVarint("v", "int")
					p.P(`m.`, fieldname, ` = bool(v != 0)`)
				}
			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, `, string(data[index:postIndex]))`)
				} else if nullable {
					p.P(`s := string(data[index:postIndex])`)
					p.P(`m.`, fieldname, ` = &s`)
				} else {
					p.P(`m.`, fieldname, ` = string(data[index:postIndex])`)
				}
				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)
				msgnames := strings.Split(msgname, ".")
				typeName := msgnames[len(msgnames)-1]
				if gogoproto.IsEmbed(field) {
					fieldname = typeName
				}
				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 repeated {
					if nullable {
						p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, &`, msgname, `{})`)
					} else {
						p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, msgname, `{})`)
					}
					p.P(`m.`, fieldname, `[len(m.`, fieldname, `)-1].Unmarshal(data[index:postIndex])`)
				} 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 if nullable {
						p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, data[index:postIndex]...)`)
					} else {
						p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, data[index:postIndex]...)`)
					}
				} else {
					_, ctyp, err := generator.GetCustomType(field)
					if err != nil {
						panic(err)
					}
					if repeated {
						p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, `, ctyp, `{})`)
						p.P(`m.`, fieldname, `[len(m.`, fieldname, `)-1].Unmarshal(data[index:postIndex])`)
					} else if nullable {
						p.P(`m.`, fieldname, ` = &`, ctyp, `{}`)
						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 uint32`)
					p.decodeVarint("v", "uint32")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v uint32`)
					p.decodeVarint("v", "uint32")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.decodeVarint("m."+fieldname, "uint32")
				}
			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 nullable {
					p.P(`var v `, typName)
					p.decodeVarint("v", typName)
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.decodeVarint("m."+fieldname, typName)
				}
			case descriptor.FieldDescriptorProto_TYPE_SFIXED32:
				if repeated {
					p.P(`var v int32`)
					p.unsafeFixed32("v", "int32")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v int32`)
					p.unsafeFixed32("v", "int32")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.unsafeFixed32("m."+fieldname, "int32")
				}
			case descriptor.FieldDescriptorProto_TYPE_SFIXED64:
				if repeated {
					p.P(`var v int64`)
					p.unsafeFixed64("v", "int64")
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if nullable {
					p.P(`var v int64`)
					p.unsafeFixed64("v", "int64")
					p.P(`m.`, fieldname, ` = &v`)
				} else {
					p.unsafeFixed64("m."+fieldname, "int64")
				}
			case descriptor.FieldDescriptorProto_TYPE_SINT32:
				p.P(`var v int32`)
				p.decodeVarint("v", "int32")
				p.P(`v = int32((uint32(v) >> 1) ^ uint32(((v&1)<<31)>>31))`)
				if repeated {
					p.P(`m.`, fieldname, ` = append(m.`, fieldname, `, v)`)
				} else if 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, `, int64(v))`)
				} else if nullable {
					p.P(`v2 := int64(v)`)
					p.P(`m.`, fieldname, ` = &v2`)
				} else {
					p.P(`m.`, fieldname, ` = int64(v)`)
				}
			default:
				panic("not implemented")
			}
			if packed {
				p.Out()
				p.P(`}`)
			}
		}
		p.Out()
		p.P(`default:`)
		p.In()
		if message.DescriptorProto.HasExtension() {
			c := []string{}
			for _, erange := range message.GetExtensionRange() {
				c = append(c, `((fieldNum >= `+strconv.Itoa(int(erange.GetStart()))+") && (fieldNum<"+strconv.Itoa(int(erange.GetEnd()))+`))`)
			}
			p.P(`if `, strings.Join(c, "||"), `{`)
			p.In()
			p.P(`var sizeOfWire int`)
			p.P(`for {`)
			p.In()
			p.P(`sizeOfWire++`)
			p.P(`wire >>= 7`)
			p.P(`if wire == 0 {`)
			p.In()
			p.P(`break`)
			p.Out()
			p.P(`}`)
			p.Out()
			p.P(`}`)
			p.P(`index-=sizeOfWire`)
			p.P(`skippy, err := `, protoPkg.Use(), `.Skip(data[index:])`)
			p.P(`if err != nil {`)
			p.In()
			p.P(`return err`)
			p.Out()
			p.P(`}`)
			p.P(`if m.XXX_extensions == nil {`)
			p.In()
			p.P(`m.XXX_extensions = make(map[int32]`, protoPkg.Use(), `.Extension)`)
			p.Out()
			p.P(`}`)
			p.P(`if (index + skippy) > l {`)
			p.In()
			p.P(`return `, p.ioPkg.Use(), `.ErrUnexpectedEOF`)
			p.Out()
			p.P(`}`)
			p.P(`m.XXX_extensions[int32(fieldNum)] = `, protoPkg.Use(), `.NewExtension(data[index:index+skippy])`)
			p.P(`index += skippy`)
			p.Out()
			p.P(`} else {`)
			p.In()
		}
		p.P(`var sizeOfWire int`)
		p.P(`for {`)
		p.In()
		p.P(`sizeOfWire++`)
		p.P(`wire >>= 7`)
		p.P(`if wire == 0 {`)
		p.In()
		p.P(`break`)
		p.Out()
		p.P(`}`)
		p.Out()
		p.P(`}`)
		p.P(`index-=sizeOfWire`)
		p.P(`skippy, err := `, protoPkg.Use(), `.Skip(data[index:])`)
		p.P(`if err != nil {`)
		p.In()
		p.P(`return err`)
		p.Out()
		p.P(`}`)
		p.P(`if (index + skippy) > l {`)
		p.In()
		p.P(`return `, p.ioPkg.Use(), `.ErrUnexpectedEOF`)
		p.Out()
		p.P(`}`)
		p.P(`m.XXX_unrecognized = append(m.XXX_unrecognized, data[index:index+skippy]...)`)
		p.P(`index += skippy`)
		p.Out()
		if message.DescriptorProto.HasExtension() {
			p.Out()
			p.P(`}`)
		}
		p.Out()
		p.P(`}`)
		p.Out()
		p.P(`}`)
		p.P(`return nil`)
		p.Out()
		p.P(`}`)
	}

	if !p.atleastOne {
		return
	}

}
Esempio n. 12
0
func (p *plugin) generateMessage(message *generator.Descriptor, verbose bool) {
	ccTypeName := generator.CamelCaseSlice(message.TypeName())
	if verbose {
		p.P(`func (this *`, ccTypeName, `) VerboseEqual(that interface{}) error {`)
	} else {
		p.P(`func (this *`, ccTypeName, `) Equal(that interface{}) bool {`)
	}
	p.In()
	p.P(`if that == nil {`)
	p.In()
	p.P(`if this == nil {`)
	p.In()
	if verbose {
		p.P(`return nil`)
	} else {
		p.P(`return true`)
	}
	p.Out()
	p.P(`}`)
	if verbose {
		p.P(`return `, p.fmtPkg.Use(), `.Errorf("that == nil && this != nil")`)
	} else {
		p.P(`return false`)
	}
	p.Out()
	p.P(`}`)
	p.P(``)
	p.P(`that1, ok := that.(*`, ccTypeName, `)`)
	p.P(`if !ok {`)
	p.In()
	if verbose {
		p.P(`return `, p.fmtPkg.Use(), `.Errorf("that is not of type *`, ccTypeName, `")`)
	} else {
		p.P(`return false`)
	}
	p.Out()
	p.P(`}`)
	p.P(`if that1 == nil {`)
	p.In()
	p.P(`if this == nil {`)
	p.In()
	if verbose {
		p.P(`return nil`)
	} else {
		p.P(`return true`)
	}
	p.Out()
	p.P(`}`)
	if verbose {
		p.P(`return `, p.fmtPkg.Use(), `.Errorf("that is type *`, ccTypeName, ` but is nil && this != nil")`)
	} else {
		p.P(`return false`)
	}
	p.Out()
	p.P(`} else if this == nil {`)
	p.In()
	if verbose {
		p.P(`return `, p.fmtPkg.Use(), `.Errorf("that is type *`, ccTypeName, `but is not nil && this == nil")`)
	} else {
		p.P(`return false`)
	}
	p.Out()
	p.P(`}`)

	for _, field := range message.Field {
		fieldname := generator.CamelCase(*field.Name)
		repeated := field.IsRepeated()
		ctype := gogoproto.IsCustomType(field)
		nullable := gogoproto.IsNullable(field)
		if gogoproto.IsEmbed(field) {
			desc := p.ObjectNamed(field.GetTypeName())
			fieldname = p.TypeName(desc)
			fieldnames := strings.Split(fieldname, ".")
			fieldname = fieldnames[len(fieldnames)-1]
		}
		if !repeated {
			if ctype {
				if nullable {
					p.P(`if that1.`, fieldname, ` == nil {`)
					p.In()
					p.P(`if this.`, fieldname, ` != nil {`)
					p.In()
					if verbose {
						p.P(`return `, p.fmtPkg.Use(), `.Errorf("this.`, fieldname, ` != nil && that1.`, fieldname, ` == nil")`)
					} else {
						p.P(`return false`)
					}
					p.Out()
					p.P(`}`)
					p.Out()
					p.P(`} else if !this.`, fieldname, `.Equal(*that1.`, fieldname, `) {`)
				} else {
					p.P(`if !this.`, fieldname, `.Equal(that1.`, fieldname, `) {`)
				}
			} else {
				if field.IsMessage() || p.IsGroup(field) {
					if nullable {
						p.P(`if !this.`, fieldname, `.Equal(that1.`, fieldname, `) {`)
					} else {
						p.P(`if !this.`, fieldname, `.Equal(&that1.`, fieldname, `) {`)
					}
				} else if field.IsBytes() {
					p.P(`if !`, p.bytesPkg.Use(), `.Equal(this.`, fieldname, `, that1.`, fieldname, `) {`)
				} else if field.IsString() {
					if nullable {
						p.generateNullableField(fieldname, verbose)
					} else {
						p.P(`if this.`, fieldname, ` != that1.`, fieldname, `{`)
					}
				} else {
					if nullable {
						p.generateNullableField(fieldname, verbose)
					} else {
						p.P(`if this.`, fieldname, ` != that1.`, fieldname, `{`)
					}
				}
			}
			p.In()
			if verbose {
				p.P(`return `, p.fmtPkg.Use(), `.Errorf("`, fieldname, ` this(%v) Not Equal that(%v)", this.`, fieldname, `, that1.`, fieldname, `)`)
			} else {
				p.P(`return false`)
			}
			p.Out()
			p.P(`}`)
		} else {
			p.P(`if len(this.`, fieldname, `) != len(that1.`, fieldname, `) {`)
			p.In()
			if verbose {
				p.P(`return `, p.fmtPkg.Use(), `.Errorf("`, fieldname, ` this(%v) Not Equal that(%v)", len(this.`, fieldname, `), len(that1.`, fieldname, `))`)
			} else {
				p.P(`return false`)
			}
			p.Out()
			p.P(`}`)
			p.P(`for i := range this.`, fieldname, ` {`)
			p.In()
			if ctype {
				p.P(`if !this.`, fieldname, `[i].Equal(that1.`, fieldname, `[i]) {`)
			} else {
				if field.IsMessage() || p.IsGroup(field) {
					if nullable {
						p.P(`if !this.`, fieldname, `[i].Equal(that1.`, fieldname, `[i]) {`)
					} else {
						p.P(`if !this.`, fieldname, `[i].Equal(&that1.`, fieldname, `[i]) {`)
					}
				} else if field.IsBytes() {
					p.P(`if !`, p.bytesPkg.Use(), `.Equal(this.`, fieldname, `[i], that1.`, fieldname, `[i]) {`)
				} else if field.IsString() {
					p.P(`if this.`, fieldname, `[i] != that1.`, fieldname, `[i] {`)
				} else {
					p.P(`if this.`, fieldname, `[i] != that1.`, fieldname, `[i] {`)
				}
			}
			p.In()
			if verbose {
				p.P(`return `, p.fmtPkg.Use(), `.Errorf("`, fieldname, ` this[%v](%v) Not Equal that[%v](%v)", i, this.`, fieldname, `[i], i, that1.`, fieldname, `[i])`)
			} else {
				p.P(`return false`)
			}
			p.Out()
			p.P(`}`)
			p.Out()
			p.P(`}`)
		}
	}
	if message.DescriptorProto.HasExtension() {
		fieldname := "XXX_extensions"
		p.P(`for k, v := range this.`, fieldname, ` {`)
		p.In()
		p.P(`if v2, ok := that1.`, fieldname, `[k]; ok {`)
		p.In()
		p.P(`if !v.Equal(&v2) {`)
		p.In()
		if verbose {
			p.P(`return `, p.fmtPkg.Use(), `.Errorf("`, fieldname, ` this[%v](%v) Not Equal that[%v](%v)", k, this.`, fieldname, `[k], k, that1.`, fieldname, `[k])`)
		} else {
			p.P(`return false`)
		}
		p.Out()
		p.P(`}`)
		p.Out()
		p.P(`} else  {`)
		p.In()
		if verbose {
			p.P(`return `, p.fmtPkg.Use(), `.Errorf("`, fieldname, `[%v] Not In that", k)`)
		} else {
			p.P(`return false`)
		}
		p.Out()
		p.P(`}`)
		p.Out()
		p.P(`}`)

		p.P(`for k, _ := range that1.`, fieldname, ` {`)
		p.In()
		p.P(`if _, ok := this.`, fieldname, `[k]; !ok {`)
		p.In()
		if verbose {
			p.P(`return `, p.fmtPkg.Use(), `.Errorf("`, fieldname, `[%v] Not In this", k)`)
		} else {
			p.P(`return false`)
		}
		p.Out()
		p.P(`}`)
		p.Out()
		p.P(`}`)
	}
	fieldname := "XXX_unrecognized"
	p.P(`if !`, p.bytesPkg.Use(), `.Equal(this.`, fieldname, `, that1.`, fieldname, `) {`)
	p.In()
	if verbose {
		p.P(`return `, p.fmtPkg.Use(), `.Errorf("`, fieldname, ` this(%v) Not Equal that(%v)", this.`, fieldname, `, that1.`, fieldname, `)`)
	} else {
		p.P(`return false`)
	}
	p.Out()
	p.P(`}`)
	if verbose {
		p.P(`return nil`)
	} else {
		p.P(`return true`)
	}
	p.Out()
	p.P(`}`)
}
Esempio n. 13
0
func (p *plugin) Generate(file *generator.FileDescriptor) {
	p.PluginImports = generator.NewPluginImports(p.Generator)
	protoPkg := p.NewImport("code.google.com/p/gogoprotobuf/proto")
	for _, message := range file.Messages() {
		if !gogoproto.IsFace(file.FileDescriptorProto, message.DescriptorProto) {
			continue
		}
		if message.DescriptorProto.HasExtension() {
			panic("face does not support message with extensions")
		}
		if gogoproto.HasGoGetters(file.FileDescriptorProto, message.DescriptorProto) {
			panic("face requires getters to be disabled please use gogoproto.getters or gogoproto.getters_all and set it to false")
		}
		ccTypeName := generator.CamelCaseSlice(message.TypeName())
		p.P(`type `, ccTypeName, `Face interface{`)
		p.In()
		p.P(`Proto() `, protoPkg.Use(), `.Message`)
		for _, field := range message.Field {
			fieldname := generator.CamelCase(*field.Name)
			goTyp, _ := p.GoType(message, field)
			if field.IsMessage() && gogoproto.IsEmbed(field) {
				fieldname = generator.GoTypeToName(goTyp)
			}
			p.P(`Get`, fieldname, `() `, goTyp)
		}
		p.Out()
		p.P(`}`)
		p.P(``)
		p.P(`func (this *`, ccTypeName, `) Proto() `, protoPkg.Use(), `.Message {`)
		p.In()
		p.P(`return this`)
		p.Out()
		p.P(`}`)
		p.P(``)
		p.P(`func (this *`, ccTypeName, `) TestProto() `, protoPkg.Use(), `.Message {`)
		p.In()
		p.P(`return New`, ccTypeName, `FromFace(this)`)
		p.Out()
		p.P(`}`)
		p.P(``)
		for _, field := range message.Field {
			fieldname := generator.CamelCase(*field.Name)
			goTyp, _ := p.GoType(message, field)
			if field.IsMessage() && gogoproto.IsEmbed(field) {
				fieldname = generator.GoTypeToName(goTyp)
			}
			p.P(`func (this *`, ccTypeName, `) Get`, fieldname, `() `, goTyp, `{`)
			p.In()
			p.P(` return this.`, fieldname)
			p.Out()
			p.P(`}`)
			p.P(``)
		}
		p.P(``)
		p.P(`func New`, ccTypeName, `FromFace(that `, ccTypeName, `Face) *`, ccTypeName, ` {`)
		p.In()
		p.P(`this := &`, ccTypeName, `{}`)
		for _, field := range message.Field {
			fieldname := generator.CamelCase(*field.Name)
			if field.IsMessage() && gogoproto.IsEmbed(field) {
				goTyp, _ := p.GoType(message, field)
				fieldname = generator.GoTypeToName(goTyp)
			}
			p.P(`this.`, fieldname, ` = that.Get`, fieldname, `()`)
		}
		p.P(`return this`)
		p.Out()
		p.P(`}`)
		p.P(``)
	}
}
Esempio n. 14
0
func (p *gostring) Generate(file *generator.FileDescriptor) {
	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("code.google.com/p/gogoprotobuf/proto")
	sortPkg := p.NewImport("sort")
	strconvPkg := p.NewImport("strconv")
	reflectPkg := p.NewImport("reflect")

	for _, message := range file.Messages() {
		if !gogoproto.HasGoString(file.FileDescriptorProto, message.DescriptorProto) {
			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(`}`)
		plus := "+"
		out := strings.Join([]string{"s := ", stringsPkg.Use(), ".Join([]string{`&", packageName, ".", ccTypeName, "{` ", plus, " "}, "")
		for _, field := range message.Field {
			nullable := gogoproto.IsNullable(field)
			repeated := field.IsRepeated()
			fieldname := generator.CamelCase(*field.Name)
			if field.IsMessage() || p.IsGroup(field) {
				desc := p.ObjectNamed(field.GetTypeName())
				msgname := p.TypeName(desc)
				msgnames := strings.Split(msgname, ".")
				typeName := msgnames[len(msgnames)-1]
				if gogoproto.IsEmbed(field) {
					fieldname = typeName
				}
				out += strings.Join([]string{"`", fieldname, ":` + "}, "")
				if nullable {
					out += strings.Join([]string{fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `)`}, "")
				} else if repeated {
					out += strings.Join([]string{stringsPkg.Use(), `.Replace(`, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `)`, ",`&`,``,1)"}, "")
				} else {
					out += strings.Join([]string{stringsPkg.Use(), `.Replace(this.`, fieldname, `.GoString()`, ",`&`,``,1)"}, "")
				}
			} else {
				out += strings.Join([]string{"`", fieldname, ":` + "}, "")
				if field.IsEnum() {
					if nullable && !repeated {
						goTyp, _ := p.GoType(message, field)
						out += strings.Join([]string{`valueToGoString`, p.localName, `(this.`, fieldname, `,"`, packageName, ".", generator.GoTypeToName(goTyp), `"`, ")"}, "")
					} else {
						out += strings.Join([]string{fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, ")"}, "")
					}
				} else {
					if nullable && !repeated {
						goTyp, _ := p.GoType(message, field)
						out += strings.Join([]string{`valueToGoString`, p.localName, `(this.`, fieldname, `,"`, generator.GoTypeToName(goTyp), `"`, ")"}, "")
					} else {
						out += strings.Join([]string{fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, ")"}, "")
					}
				}
			}
			out += ", "
		}
		if message.DescriptorProto.HasExtension() {
			out += strings.Join([]string{"`XXX_extensions: ` + extensionToGoString", p.localName, `(this.XXX_extensions),`}, "")
		}
		out += strings.Join([]string{"`XXX_unrecognized:` + ", fmtPkg.Use(), `.Sprintf("%#v", this.XXX_unrecognized)`}, "")
		out += "+ `}`"
		out = strings.Join([]string{out, `}`, `,", "`, ")"}, "")
		p.P(out)
		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(`}`)

}
Esempio n. 15
0
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("union does not currently support extensions")
		}

		ccTypeName := generator.CamelCaseSlice(message.TypeName())
		p.P(`func (this *`, ccTypeName, `) GetValue() interface{} {`)
		p.In()
		for _, field := range message.Field {
			fieldname := generator.CamelCase(*field.Name)
			if fieldname == "Value" {
				panic("cannot have a union message " + ccTypeName + " with a field named Value")
			}
			if field.IsMessage() && gogoproto.IsEmbed(field) {
				goTyp, _ := p.GoType(message, field)
				fieldname = generator.GoTypeToName(goTyp)
			}
			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 := generator.CamelCase(*field.Name)
			goTyp, _ := p.GoType(message, field)
			if field.IsMessage() && gogoproto.IsEmbed(field) {
				fieldname = generator.GoTypeToName(goTyp)
			}
			p.P(`case `, goTyp, `:`)
			p.In()
			p.P(`this.`, fieldname, ` = vt`)
			p.Out()
		}
		p.P(`default:`)
		p.In()
		for _, field := range message.Field {
			fieldname := generator.CamelCase(*field.Name)
			if field.IsMessage() {
				goTyp, _ := p.GoType(message, field)
				if gogoproto.IsEmbed(field) {
					fieldname = generator.GoTypeToName(goTyp)
				}
				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(`}`)
	}
}