// generateClientSignature returns the client-side signature for a method.
func (g *grpc) generateClientSignature(servName string, method *pb.MethodDescriptorProto) string {
origMethName := method.GetName()
methName := generator.CamelCase(origMethName)
if reservedClientName[methName] {
methName += "_"
}
reqArg := ", in *" + g.typeName(method.GetInputType())
if method.GetClientStreaming() {
reqArg = ""
}
respName := "*" + g.typeName(method.GetOutputType())
if method.GetServerStreaming() || method.GetClientStreaming() {
respName = servName + "_" + generator.CamelCase(origMethName) + "Client"
}
return fmt.Sprintf("%s(ctx %s.Context%s, opts ...%s.CallOption) (%s, error)", methName, contextPkg, reqArg, grpcPkg, respName)
}
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 field.IsMessage() && 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
}
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)
}
}
}
func (p *plugin) Generate(file *generator.FileDescriptor) {
for _, msg := range file.Messages() {
face := gogoproto.IsFace(file.FileDescriptorProto, msg.DescriptorProto)
for _, field := range msg.GetField() {
if field.OneofIndex == nil {
continue
}
if face {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v cannot be in a face and oneof\n", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
os.Exit(1)
}
if gogoproto.IsEmbed(field) {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v cannot be in an oneof and an embedded field\n", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
os.Exit(1)
}
if !gogoproto.IsNullable(field) {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v cannot be in an oneof and a non-nullable field\n", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
os.Exit(1)
}
if gogoproto.IsUnion(file.FileDescriptorProto, msg.DescriptorProto) {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v cannot be in an oneof and in an union (deprecated)\n", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
os.Exit(1)
}
}
}
}
func (g *svcauth) generateAuthzRuleName(servName string, method *pb.MethodDescriptorProto) string {
origMethName := method.GetName()
methName := generator.CamelCase(origMethName)
if reservedClientName[methName] {
methName += "_"
}
return "authz_" + servName + "_" + methName
}
// generateServerSignature returns the server-side signature for a method.
func (g *svchttp) generateServerCallName(servName string, method *pb.MethodDescriptorProto) string {
origMethName := method.GetName()
methName := "_http_" + servName + "_" + generator.CamelCase(origMethName)
if reservedClientName[methName] {
methName += "_"
}
return methName
}
func (p *plugin) checkRepeated(message *generator.Descriptor) {
ccTypeName := generator.CamelCaseSlice(message.TypeName())
for _, field := range message.Field {
if !gogoproto.IsEmbed(field) {
continue
}
if field.IsBytes() {
fieldname := generator.CamelCase(*field.Name)
fmt.Fprintf(os.Stderr, "ERROR: found embedded bytes field %s in message %s\n", fieldname, ccTypeName)
os.Exit(1)
}
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)
}
}
// generateServerSignature returns the server-side signature for a method.
func (g *grpc) generateServerSignature(servName string, method *pb.MethodDescriptorProto) string {
origMethName := method.GetName()
methName := generator.CamelCase(origMethName)
if reservedClientName[methName] {
methName += "_"
}
var reqArgs []string
ret := "error"
if !method.GetServerStreaming() && !method.GetClientStreaming() {
reqArgs = append(reqArgs, contextPkg+".Context")
ret = "(*" + g.typeName(method.GetOutputType()) + ", error)"
}
if !method.GetClientStreaming() {
reqArgs = append(reqArgs, "*"+g.typeName(method.GetInputType()))
}
if method.GetServerStreaming() || method.GetClientStreaming() {
reqArgs = append(reqArgs, servName+"_"+generator.CamelCase(origMethName)+"Server")
}
return methName + "(" + strings.Join(reqArgs, ", ") + ") " + ret
}
func (p *plugin) Generate(file *generator.FileDescriptor) {
proto3 := gogoproto.IsProto3(file.FileDescriptorProto)
for _, msg := range file.Messages() {
getters := gogoproto.HasGoGetters(file.FileDescriptorProto, msg.DescriptorProto)
face := gogoproto.IsFace(file.FileDescriptorProto, msg.DescriptorProto)
for _, field := range msg.GetField() {
if len(field.GetDefaultValue()) > 0 {
if !getters {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v cannot have a default value and not have a getter method", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
os.Exit(1)
}
if face {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v cannot have a default value be in a face", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
os.Exit(1)
}
}
if gogoproto.IsNullable(field) {
continue
}
if len(field.GetDefaultValue()) > 0 {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v cannot be non-nullable and have a default value", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
os.Exit(1)
}
if !field.IsMessage() && !gogoproto.IsCustomType(field) {
if field.IsRepeated() {
fmt.Fprintf(os.Stderr, "WARNING: field %v.%v is a repeated non-nullable native type, nullable=false has no effect\n", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
} else if proto3 {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v is a native type and in proto3 syntax with nullable=false there exists conflicting implementations when encoding zero values", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
os.Exit(1)
}
if field.IsBytes() {
fmt.Fprintf(os.Stderr, "WARNING: field %v.%v is a non-nullable bytes type, nullable=false has no effect\n", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name))
}
}
if !field.IsEnum() {
continue
}
enum := p.ObjectNamed(field.GetTypeName()).(*generator.EnumDescriptor)
if len(enum.Value) == 0 || enum.Value[0].GetNumber() != 0 {
fmt.Fprintf(os.Stderr, "ERROR: field %v.%v cannot be non-nullable and be an enum type %v which does not start with zero", generator.CamelCase(*msg.Name), generator.CamelCase(*field.Name), enum.GetName())
os.Exit(1)
}
}
}
for _, e := range file.GetExtension() {
if !gogoproto.IsNullable(e) {
fmt.Fprintf(os.Stderr, "ERROR: extended field %v cannot be nullable %v", generator.CamelCase(e.GetName()), generator.CamelCase(*e.Name))
os.Exit(1)
}
}
}
func (g *validation) generateValidator(file *generator.FileDescriptor, msg *generator.Descriptor) {
if msg.GetOptions().GetMapEntry() {
return
}
g.P(`func (msg *`, g.gen.TypeName(msg), `) Validate() error {`)
var patterns = map[string]string{}
for idx, field := range msg.Field {
if field.OneofIndex != nil {
continue
}
fieldName := "msg." + g.gen.GetFieldName(msg, field)
g.generateTests(msg, field, fieldName, idx, patterns)
}
for oneofIdx, oneof := range msg.OneofDecl {
g.P(`switch c := msg.Get`, generator.CamelCase(oneof.GetName()), `().(type) {`)
for idx, field := range msg.Field {
if field.OneofIndex == nil {
continue
}
if *field.OneofIndex != int32(oneofIdx) {
continue
}
g.P(`case *`, g.gen.OneOfTypeName(msg, field), `:`)
fieldName := "c." + g.gen.GetOneOfFieldName(msg, field)
g.generateTests(msg, field, fieldName, idx, patterns)
}
g.P(`}`)
}
g.P(`return nil`)
g.P(`}`)
g.P(``)
for name, pattern := range patterns {
g.P(`var `, name, ` = `, g.regexpPkg.Use(), `.MustCompile(`, strconv.Quote(pattern), `)`)
}
g.P(``)
}
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 field.IsMessage() && 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)
}
}
}
// generateServerSignature returns the server-side signature for a method.
func (g *svcauth) generateServerCall(servName string, method *pb.MethodDescriptorProto) string {
origMethName := method.GetName()
methName := generator.CamelCase(origMethName)
if reservedClientName[methName] {
methName += "_"
}
var reqArgs []string
if !method.GetServerStreaming() && !method.GetClientStreaming() {
reqArgs = append(reqArgs, "ctx")
}
if !method.GetClientStreaming() {
reqArgs = append(reqArgs, "input")
}
if method.GetServerStreaming() || method.GetClientStreaming() {
reqArgs = append(reqArgs, "stream")
}
return methName + "(" + strings.Join(reqArgs, ", ") + ") "
}
func (p *marshalto) generateField(proto3 bool, numGen NumGen, file *generator.FileDescriptor, message *generator.Descriptor, field *descriptor.FieldDescriptorProto) {
fieldname := p.GetOneOfFieldName(message, field)
nullable := gogoproto.IsNullable(field)
repeated := field.IsRepeated()
required := field.IsRequired()
protoSizer := gogoproto.IsProtoSizer(file.FileDescriptorProto, message.DescriptorProto)
doNilCheck := gogoproto.NeedsNilCheck(proto3, field)
if required && nullable {
p.P(`if m.`, fieldname, `== nil {`)
p.In()
if !gogoproto.ImportsGoGoProto(file.FileDescriptorProto) {
p.P(`return 0, new(`, p.protoPkg.Use(), `.RequiredNotSetError)`)
} else {
p.P(`return 0, `, p.protoPkg.Use(), `.NewRequiredNotSetError("`, field.GetName(), `")`)
}
p.Out()
p.P(`} else {`)
} else if repeated {
p.P(`if len(m.`, fieldname, `) > 0 {`)
p.In()
} else if doNilCheck {
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 !p.unsafe || gogoproto.IsCastType(field) {
if packed {
p.encodeKey(fieldNumber, wireType)
p.callVarint(`len(m.`, fieldname, `) * 8`)
p.P(`for _, num := range m.`, fieldname, ` {`)
p.In()
p.P(`f`, numGen.Next(), ` := `, p.mathPkg.Use(), `.Float64bits(float64(num))`)
p.encodeFixed64("f" + numGen.Current())
p.Out()
p.P(`}`)
} else if repeated {
p.P(`for _, num := range m.`, fieldname, ` {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.P(`f`, numGen.Next(), ` := `, p.mathPkg.Use(), `.Float64bits(float64(num))`)
p.encodeFixed64("f" + numGen.Current())
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callFixed64(p.mathPkg.Use(), `.Float64bits(float64(m.`+fieldname, `))`)
p.Out()
p.P(`}`)
} else if !nullable {
p.encodeKey(fieldNumber, wireType)
p.callFixed64(p.mathPkg.Use(), `.Float64bits(float64(m.`+fieldname, `))`)
} else {
p.encodeKey(fieldNumber, wireType)
p.callFixed64(p.mathPkg.Use(), `.Float64bits(float64(*m.`+fieldname, `))`)
}
} else {
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 proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.unsafeFixed64(`m.`+fieldname, "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 !p.unsafe || gogoproto.IsCastType(field) {
if packed {
p.encodeKey(fieldNumber, wireType)
p.callVarint(`len(m.`, fieldname, `) * 4`)
p.P(`for _, num := range m.`, fieldname, ` {`)
p.In()
p.P(`f`, numGen.Next(), ` := `, p.mathPkg.Use(), `.Float32bits(float32(num))`)
p.encodeFixed32("f" + numGen.Current())
p.Out()
p.P(`}`)
} else if repeated {
p.P(`for _, num := range m.`, fieldname, ` {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.P(`f`, numGen.Next(), ` := `, p.mathPkg.Use(), `.Float32bits(float32(num))`)
p.encodeFixed32("f" + numGen.Current())
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callFixed32(p.mathPkg.Use(), `.Float32bits(float32(m.`+fieldname, `))`)
p.Out()
p.P(`}`)
} else if !nullable {
p.encodeKey(fieldNumber, wireType)
p.callFixed32(p.mathPkg.Use(), `.Float32bits(float32(m.`+fieldname, `))`)
} else {
p.encodeKey(fieldNumber, wireType)
p.callFixed32(p.mathPkg.Use(), `.Float32bits(float32(*m.`+fieldname, `))`)
}
} else {
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 proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.unsafeFixed32(`m.`+fieldname, `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`)
if *field.Type == descriptor.FieldDescriptorProto_TYPE_INT64 ||
*field.Type == descriptor.FieldDescriptorProto_TYPE_INT32 {
p.P(`for _, num1 := range m.`, fieldname, ` {`)
p.In()
p.P(`num := uint64(num1)`)
} else {
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.callVarint("num")
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callVarint(`m.`, fieldname)
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:
if !p.unsafe {
if packed {
p.encodeKey(fieldNumber, wireType)
p.callVarint(`len(m.`, fieldname, `) * 8`)
p.P(`for _, num := range m.`, fieldname, ` {`)
p.In()
p.encodeFixed64("num")
p.Out()
p.P(`}`)
} else if repeated {
p.P(`for _, num := range m.`, fieldname, ` {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.encodeFixed64("num")
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callFixed64("m." + fieldname)
p.Out()
p.P(`}`)
} else if !nullable {
p.encodeKey(fieldNumber, wireType)
p.callFixed64("m." + fieldname)
} else {
p.encodeKey(fieldNumber, wireType)
p.callFixed64("*m." + fieldname)
}
} else {
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 proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.unsafeFixed64("m."+fieldname, 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:
if !p.unsafe {
if packed {
p.encodeKey(fieldNumber, wireType)
p.callVarint(`len(m.`, fieldname, `) * 4`)
p.P(`for _, num := range m.`, fieldname, ` {`)
p.In()
p.encodeFixed32("num")
p.Out()
p.P(`}`)
} else if repeated {
p.P(`for _, num := range m.`, fieldname, ` {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.encodeFixed32("num")
p.Out()
p.P(`}`)
} else if proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callFixed32("m." + fieldname)
p.Out()
p.P(`}`)
} else if !nullable {
p.encodeKey(fieldNumber, wireType)
p.callFixed32("m." + fieldname)
} else {
p.encodeKey(fieldNumber, wireType)
p.callFixed32("*m." + fieldname)
}
} else {
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 proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.unsafeFixed32("m."+fieldname, 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 proto3 {
p.P(`if m.`, fieldname, ` {`)
p.In()
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++`)
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 proto3 {
p.P(`if len(m.`, fieldname, `) > 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callVarint(`len(m.`, fieldname, `)`)
p.P(`i+=copy(data[i:], m.`, fieldname, `)`)
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 p.IsMap(field) {
m := p.GoMapType(nil, field)
keygoTyp, keywire := p.GoType(nil, m.KeyField)
keygoAliasTyp, _ := p.GoType(nil, m.KeyAliasField)
// keys may not be pointers
keygoTyp = strings.Replace(keygoTyp, "*", "", 1)
keygoAliasTyp = strings.Replace(keygoAliasTyp, "*", "", 1)
keyCapTyp := generator.CamelCase(keygoTyp)
valuegoTyp, valuewire := p.GoType(nil, m.ValueField)
valuegoAliasTyp, _ := p.GoType(nil, m.ValueAliasField)
nullable, valuegoTyp, valuegoAliasTyp = generator.GoMapValueTypes(field, m.ValueField, valuegoTyp, valuegoAliasTyp)
keyKeySize := keySize(1, wireToType(keywire))
valueKeySize := keySize(2, wireToType(valuewire))
if gogoproto.IsStableMarshaler(file.FileDescriptorProto, message.DescriptorProto) {
keysName := `keysFor` + fieldname
p.P(keysName, ` := make([]`, keygoTyp, `, 0, len(m.`, fieldname, `))`)
p.P(`for k, _ := range m.`, fieldname, ` {`)
p.In()
p.P(keysName, ` = append(`, keysName, `, `, keygoTyp, `(k))`)
p.Out()
p.P(`}`)
p.P(p.sortKeysPkg.Use(), `.`, keyCapTyp, `s(`, keysName, `)`)
p.P(`for _, k := range `, keysName, ` {`)
} else {
p.P(`for k, _ := range m.`, fieldname, ` {`)
}
p.In()
p.encodeKey(fieldNumber, wireType)
sum := []string{strconv.Itoa(keyKeySize)}
switch m.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))`)
}
if gogoproto.IsStableMarshaler(file.FileDescriptorProto, message.DescriptorProto) {
p.P(`v := m.`, fieldname, `[`, keygoAliasTyp, `(k)]`)
} else {
p.P(`v := m.`, fieldname, `[k]`)
}
accessor := `v`
sum = append(sum, strconv.Itoa(valueKeySize))
switch m.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:
if nullable {
p.P(`if v == nil {`)
p.In()
p.P(`return 0, `, p.errorsPkg.Use(), `.New("proto: map has nil element")`)
p.Out()
p.P(`}`)
}
if valuegoTyp != valuegoAliasTyp {
if nullable {
// cast back to the type that has the generated methods on it
accessor = `((` + valuegoTyp + `)(` + accessor + `))`
} else {
accessor = `((*` + valuegoTyp + `)(&` + accessor + `))`
}
} else if !nullable {
accessor = `(&v)`
}
if protoSizer {
p.P(`msgSize := `, accessor, `.ProtoSize()`)
} else {
p.P(`msgSize := `, accessor, `.Size()`)
}
sum = append(sum, `msgSize + sov`+p.localName+`(uint64(msgSize))`)
}
p.P(`mapSize := `, strings.Join(sum, " + "))
p.callVarint("mapSize")
p.encodeKey(1, wireToType(keywire))
p.mapField(numGen, m.KeyField.GetType(), "k", protoSizer)
p.encodeKey(2, wireToType(valuewire))
p.mapField(numGen, m.ValueField.GetType(), accessor, protoSizer)
p.Out()
p.P(`}`)
} else if repeated {
casttyp := "msg"
if gogoproto.IsCastType(field) {
prototyp := p.TypeName(p.ObjectNamed(field.GetTypeName()))
if nullable {
casttyp = "((*" + prototyp + ")(" + casttyp + "))"
} else {
casttyp = "((*" + prototyp + ")(&" + casttyp + "))"
}
}
p.P(`for _, msg := range m.`, fieldname, ` {`)
p.In()
p.encodeKey(fieldNumber, wireType)
if protoSizer {
p.callVarint(casttyp + ".ProtoSize()")
} else {
p.callVarint(casttyp + ".Size()")
}
p.P(`n, err := `, casttyp, `.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 {
casttyp := `m.` + fieldname
if gogoproto.IsCastType(field) {
prototyp := p.TypeName(p.ObjectNamed(field.GetTypeName()))
if nullable {
casttyp = "((*" + prototyp + ")(" + casttyp + "))"
} else {
casttyp = "((*" + prototyp + ")(&" + casttyp + "))"
}
}
p.encodeKey(fieldNumber, wireType)
if protoSizer {
p.callVarint(casttyp + ".ProtoSize()")
} else {
p.callVarint(casttyp + ".Size()")
}
p.P(`n`, numGen.Next(), `, err := `, casttyp, `.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 if proto3 {
p.P(`if len(m.`, fieldname, `) > 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callVarint(`len(m.`, fieldname, `)`)
p.P(`i+=copy(data[i:], m.`, fieldname, `)`)
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)
if protoSizer {
p.callVarint(`msg.ProtoSize()`)
} else {
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)
if protoSizer {
p.callVarint(`m.`, fieldname, `.ProtoSize()`)
} else {
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 proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callVarint(`(uint32(m.`, fieldname, `) << 1) ^ uint32((m.`, fieldname, ` >> 31))`)
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 proto3 {
p.P(`if m.`, fieldname, ` != 0 {`)
p.In()
p.encodeKey(fieldNumber, wireType)
p.callVarint(`(uint64(m.`, fieldname, `) << 1) ^ uint64((m.`, fieldname, ` >> 63))`)
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 (required && nullable) || repeated || doNilCheck {
p.Out()
p.P(`}`)
}
}
func (g *grpc) generateServerMethod(servName, fullServName string, method *pb.MethodDescriptorProto) string {
methName := generator.CamelCase(method.GetName())
hname := fmt.Sprintf("_%s_%s_Handler", servName, methName)
inType := g.typeName(method.GetInputType())
outType := g.typeName(method.GetOutputType())
if !method.GetServerStreaming() && !method.GetClientStreaming() {
g.P("func ", hname, "(srv interface{}, ctx ", contextPkg, ".Context, dec func(interface{}) error, interceptor ", grpcPkg, ".UnaryServerInterceptor) (interface{}, error) {")
g.P("in := new(", inType, ")")
g.P("if err := dec(in); err != nil { return nil, err }")
g.P("if interceptor == nil { return srv.(", servName, "Server).", methName, "(ctx, in) }")
g.P("info := &", grpcPkg, ".UnaryServerInfo{")
g.P("Server: srv,")
g.P("FullMethod: ", strconv.Quote(fmt.Sprintf("/%s/%s", fullServName, methName)), ",")
g.P("}")
g.P("handler := func(ctx ", contextPkg, ".Context, req interface{}) (interface{}, error) {")
g.P("return srv.(", servName, "Server).", methName, "(ctx, req.(*", inType, "))")
g.P("}")
g.P("return interceptor(ctx, in, info, handler)")
g.P("}")
g.P()
return hname
}
streamType := unexport(servName) + methName + "Server"
g.P("func ", hname, "(srv interface{}, stream ", grpcPkg, ".ServerStream) error {")
if !method.GetClientStreaming() {
g.P("m := new(", inType, ")")
g.P("if err := stream.RecvMsg(m); err != nil { return err }")
g.P("return srv.(", servName, "Server).", methName, "(m, &", streamType, "{stream})")
} else {
g.P("return srv.(", servName, "Server).", methName, "(&", streamType, "{stream})")
}
g.P("}")
g.P()
genSend := method.GetServerStreaming()
genSendAndClose := !method.GetServerStreaming()
genRecv := method.GetClientStreaming()
// Stream auxiliary types and methods.
g.P("type ", servName, "_", methName, "Server interface {")
if genSend {
g.P("Send(*", outType, ") error")
}
if genSendAndClose {
g.P("SendAndClose(*", outType, ") error")
}
if genRecv {
g.P("Recv() (*", inType, ", error)")
}
g.P(grpcPkg, ".ServerStream")
g.P("}")
g.P()
g.P("type ", streamType, " struct {")
g.P(grpcPkg, ".ServerStream")
g.P("}")
g.P()
if genSend {
g.P("func (x *", streamType, ") Send(m *", outType, ") error {")
g.P("return x.ServerStream.SendMsg(m)")
g.P("}")
g.P()
}
if genSendAndClose {
g.P("func (x *", streamType, ") SendAndClose(m *", outType, ") error {")
g.P("return x.ServerStream.SendMsg(m)")
g.P("}")
g.P()
}
if genRecv {
g.P("func (x *", streamType, ") Recv() (*", inType, ", error) {")
g.P("m := new(", inType, ")")
g.P("if err := x.ServerStream.RecvMsg(m); err != nil { return nil, err }")
g.P("return m, nil")
g.P("}")
g.P()
}
return hname
}
func (g *grpc) generateClientMethod(servName, fullServName, serviceDescVar string, method *pb.MethodDescriptorProto, descExpr string) {
sname := fmt.Sprintf("/%s/%s", fullServName, method.GetName())
methName := generator.CamelCase(method.GetName())
inType := g.typeName(method.GetInputType())
outType := g.typeName(method.GetOutputType())
g.P("func (c *", unexport(servName), "Client) ", g.generateClientSignature(servName, method), "{")
if !method.GetServerStreaming() && !method.GetClientStreaming() {
g.P("out := new(", outType, ")")
// TODO: Pass descExpr to Invoke.
g.P("err := ", grpcPkg, `.Invoke(ctx, "`, sname, `", in, out, c.cc, opts...)`)
g.P("if err != nil { return nil, err }")
g.P("return out, nil")
g.P("}")
g.P()
return
}
streamType := unexport(servName) + methName + "Client"
g.P("stream, err := ", grpcPkg, ".NewClientStream(ctx, ", descExpr, `, c.cc, "`, sname, `", opts...)`)
g.P("if err != nil { return nil, err }")
g.P("x := &", streamType, "{stream}")
if !method.GetClientStreaming() {
g.P("if err := x.ClientStream.SendMsg(in); err != nil { return nil, err }")
g.P("if err := x.ClientStream.CloseSend(); err != nil { return nil, err }")
}
g.P("return x, nil")
g.P("}")
g.P()
genSend := method.GetClientStreaming()
genRecv := method.GetServerStreaming()
genCloseAndRecv := !method.GetServerStreaming()
// Stream auxiliary types and methods.
g.P("type ", servName, "_", methName, "Client interface {")
if genSend {
g.P("Send(*", inType, ") error")
}
if genRecv {
g.P("Recv() (*", outType, ", error)")
}
if genCloseAndRecv {
g.P("CloseAndRecv() (*", outType, ", error)")
}
g.P(grpcPkg, ".ClientStream")
g.P("}")
g.P()
g.P("type ", streamType, " struct {")
g.P(grpcPkg, ".ClientStream")
g.P("}")
g.P()
if genSend {
g.P("func (x *", streamType, ") Send(m *", inType, ") error {")
g.P("return x.ClientStream.SendMsg(m)")
g.P("}")
g.P()
}
if genRecv {
g.P("func (x *", streamType, ") Recv() (*", outType, ", error) {")
g.P("m := new(", outType, ")")
g.P("if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }")
g.P("return m, nil")
g.P("}")
g.P()
}
if genCloseAndRecv {
g.P("func (x *", streamType, ") CloseAndRecv() (*", outType, ", error) {")
g.P("if err := x.ClientStream.CloseSend(); err != nil { return nil, err }")
g.P("m := new(", outType, ")")
g.P("if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }")
g.P("return m, nil")
g.P("}")
g.P()
}
}
// generateService generates all the code for the named service.
func (g *grpc) generateService(file *generator.FileDescriptor, service *pb.ServiceDescriptorProto, index int) {
path := fmt.Sprintf("6,%d", index) // 6 means service.
origServName := service.GetName()
fullServName := origServName
if pkg := file.GetPackage(); pkg != "" {
fullServName = pkg + "." + fullServName
}
servName := generator.CamelCase(origServName)
g.P()
g.P("// Client API for ", servName, " service")
g.P()
// Client interface.
g.P("type ", servName, "Client interface {")
for i, method := range service.Method {
g.gen.PrintComments(fmt.Sprintf("%s,2,%d", path, i)) // 2 means method in a service.
g.P(g.generateClientSignature(servName, method))
}
g.P("}")
g.P()
// Client structure.
g.P("type ", unexport(servName), "Client struct {")
g.P("cc *", grpcPkg, ".ClientConn")
g.P("}")
g.P()
// NewClient factory.
g.P("func New", servName, "Client (cc *", grpcPkg, ".ClientConn) ", servName, "Client {")
g.P("return &", unexport(servName), "Client{cc}")
g.P("}")
g.P()
var methodIndex, streamIndex int
serviceDescVar := "_" + servName + "_serviceDesc"
// Client method implementations.
for _, method := range service.Method {
var descExpr string
if !method.GetServerStreaming() && !method.GetClientStreaming() {
// Unary RPC method
descExpr = fmt.Sprintf("&%s.Methods[%d]", serviceDescVar, methodIndex)
methodIndex++
} else {
// Streaming RPC method
descExpr = fmt.Sprintf("&%s.Streams[%d]", serviceDescVar, streamIndex)
streamIndex++
}
g.generateClientMethod(servName, fullServName, serviceDescVar, method, descExpr)
}
g.P("// Server API for ", servName, " service")
g.P()
// Server interface.
serverType := servName + "Server"
g.P("type ", serverType, " interface {")
for i, method := range service.Method {
g.gen.PrintComments(fmt.Sprintf("%s,2,%d", path, i)) // 2 means method in a service.
g.P(g.generateServerSignature(servName, method))
}
g.P("}")
g.P()
// Server registration.
g.P("func Register", servName, "Server(s *", grpcPkg, ".Server, srv ", serverType, ", options ...", gogogrpcPkg, ".ServerOption) {")
g.P("s.RegisterService(", gogogrpcPkg, ".ApplyServerOptions(&", serviceDescVar, ", srv, options))")
g.P("}")
g.P()
// Server handler implementations.
var handlerNames []string
for _, method := range service.Method {
hname := g.generateServerMethod(servName, fullServName, method)
handlerNames = append(handlerNames, hname)
}
// Service descriptor.
g.P("var ", serviceDescVar, " = ", grpcPkg, ".ServiceDesc {")
g.P("ServiceName: ", strconv.Quote(fullServName), ",")
g.P("HandlerType: (*", serverType, ")(nil),")
g.P("Methods: []", grpcPkg, ".MethodDesc{")
for i, method := range service.Method {
if method.GetServerStreaming() || method.GetClientStreaming() {
continue
}
g.P("{")
g.P("MethodName: ", strconv.Quote(method.GetName()), ",")
g.P("Handler: ", handlerNames[i], ",")
g.P("},")
}
g.P("},")
g.P("Streams: []", grpcPkg, ".StreamDesc{")
for i, method := range service.Method {
if !method.GetServerStreaming() && !method.GetClientStreaming() {
continue
}
g.P("{")
g.P("StreamName: ", strconv.Quote(method.GetName()), ",")
g.P("Handler: ", handlerNames[i], ",")
if method.GetServerStreaming() {
g.P("ServerStreams: true,")
}
if method.GetClientStreaming() {
g.P("ClientStreams: true,")
}
g.P("},")
}
g.P("},")
g.P("Metadata: ", file.VarName(), ",")
g.P("}")
g.P()
}
// generateService generates all the code for the named service.
func (g *svcauth) generateService(file *generator.FileDescriptor, service *pb.ServiceDescriptorProto, index int) {
methods := g.findMethods(file, service)
if len(methods) == 0 {
return
}
origServName := service.GetName()
fullServName := file.GetPackage() + "." + origServName
servName := generator.CamelCase(origServName)
authDescVarName := "_" + servName + "_authDesc"
methodsByName := make(map[*pb.MethodDescriptorProto]*authMethod)
for _, m := range methods {
methodsByName[m.method] = m
}
g.gen.AddInitf("%s.RegisterServiceAuthDesc(&%s)", g.runtimePkg.Use(), authDescVarName)
var interfaceMethods []string
g.P(`var `, authDescVarName, ` = `, g.runtimePkg.Use(), `.ServiceAuthDesc{`)
g.P(`ServiceName: `, strconv.Quote(fullServName), `,`)
g.P(`HandlerType: ((*`, servName, `Server)(nil)),`)
g.P(`AuthHandlerType: ((*`, servName, `ServerAuth)(nil)),`)
g.P(`Methods: []`, g.runtimePkg.Use(), `.MethodAuthDesc{`)
for _, method := range service.Method {
if method.GetServerStreaming() || method.GetClientStreaming() {
continue
}
g.P(`{`)
g.P(`MethodName: `, strconv.Quote(method.GetName()), `,`)
g.generateDesc(servName, method, methodsByName[method], &interfaceMethods)
g.P("},")
}
g.P("},")
g.P(`Streams: []`, g.runtimePkg.Use(), `.StreamAuthDesc{`)
for _, method := range service.Method {
if !method.GetServerStreaming() && !method.GetClientStreaming() {
continue
}
g.P(`{`)
g.P(`StreamName: `, strconv.Quote(method.GetName()), `,`)
g.generateDesc(servName, method, methodsByName[method], &interfaceMethods)
g.P("},")
}
g.P("},")
g.P("}")
g.P()
if len(interfaceMethods) > 0 {
sort.Strings(interfaceMethods)
last := ""
g.P(`type `, servName, `ServerAuth interface {`)
for _, sig := range interfaceMethods {
if sig != last {
last = sig
g.P(sig)
}
}
g.P(`}`)
}
}
func (p *stringer) Generate(file *generator.FileDescriptor) {
proto3 := gogoproto.IsProto3(file.FileDescriptorProto)
p.PluginImports = generator.NewPluginImports(p.Generator)
p.atleastOne = false
p.localName = generator.FileName(file)
fmtPkg := p.NewImport("fmt")
stringsPkg := p.NewImport("strings")
reflectPkg := p.NewImport("reflect")
sortKeysPkg := p.NewImport("limbo.services/protobuf/sortkeys")
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")
}
if message.DescriptorProto.GetOptions().GetMapEntry() {
continue
}
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(`}`)
for _, field := range message.Field {
if !p.IsMap(field) {
continue
}
fieldname := p.GetFieldName(message, field)
m := p.GoMapType(nil, field)
mapgoTyp, keyField, keyAliasField := m.GoType, m.KeyField, m.KeyAliasField
keysName := `keysFor` + fieldname
keygoTyp, _ := p.GoType(nil, keyField)
keygoTyp = strings.Replace(keygoTyp, "*", "", 1)
keygoAliasTyp, _ := p.GoType(nil, keyAliasField)
keygoAliasTyp = strings.Replace(keygoAliasTyp, "*", "", 1)
keyCapTyp := generator.CamelCase(keygoTyp)
p.P(keysName, ` := make([]`, keygoTyp, `, 0, len(this.`, fieldname, `))`)
p.P(`for k, _ := range this.`, fieldname, ` {`)
p.In()
if keygoAliasTyp == keygoTyp {
p.P(keysName, ` = append(`, keysName, `, k)`)
} else {
p.P(keysName, ` = append(`, keysName, `, `, keygoTyp, `(k))`)
}
p.Out()
p.P(`}`)
p.P(sortKeysPkg.Use(), `.`, keyCapTyp, `s(`, keysName, `)`)
mapName := `mapStringFor` + fieldname
p.P(mapName, ` := "`, mapgoTyp, `{"`)
p.P(`for _, k := range `, keysName, ` {`)
p.In()
if keygoAliasTyp == keygoTyp {
p.P(mapName, ` += fmt.Sprintf("%v: %v,", k, this.`, fieldname, `[k])`)
} else {
p.P(mapName, ` += fmt.Sprintf("%v: %v,", k, this.`, fieldname, `[`, keygoAliasTyp, `(k)])`)
}
p.Out()
p.P(`}`)
p.P(mapName, ` += "}"`)
}
p.P("s := ", stringsPkg.Use(), ".Join([]string{`&", ccTypeName, "{`,")
oneofs := make(map[string]struct{})
for _, field := range message.Field {
nullable := gogoproto.IsNullable(field)
repeated := field.IsRepeated()
fieldname := p.GetFieldName(message, field)
oneof := field.OneofIndex != nil
if oneof {
if _, ok := oneofs[fieldname]; ok {
continue
} else {
oneofs[fieldname] = struct{}{}
}
p.P("`", fieldname, ":`", ` + `, fmtPkg.Use(), `.Sprintf("%v", this.`, fieldname, ") + `,", "`,")
} else if p.IsMap(field) {
mapName := `mapStringFor` + fieldname
p.P("`", fieldname, ":`", ` + `, mapName, " + `,", "`,")
} else 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 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 && !proto3 {
p.P("`", fieldname, ":`", ` + valueToString`, p.localName, `(this.`, fieldname, ") + `,", "`,")
} else {
p.P("`", fieldname, ":`", ` + `, fmtPkg.Use(), `.Sprintf("%v", this.`, fieldname, ") + `,", "`,")
}
}
}
if message.DescriptorProto.HasExtension() {
if gogoproto.HasExtensionsMap(file.FileDescriptorProto, message.DescriptorProto) {
p.P("`XXX_extensions:` + proto.StringFromExtensionsMap(this.XXX_extensions) + `,`,")
} else {
p.P("`XXX_extensions:` + proto.StringFromExtensionsBytes(this.XXX_extensions) + `,`,")
}
}
if gogoproto.HasUnrecognized(file.FileDescriptorProto, message.DescriptorProto) {
p.P("`XXX_unrecognized:` + ", fmtPkg.Use(), `.Sprintf("%v", this.XXX_unrecognized) + `, "`,`,")
}
p.P("`}`,")
p.P(`}`, `,""`, ")")
p.P(`return s`)
p.Out()
p.P(`}`)
//Generate String methods for oneof fields
for _, field := range message.Field {
oneof := field.OneofIndex != nil
if !oneof {
continue
}
ccTypeName := p.OneOfTypeName(message, field)
p.P(`func (this *`, ccTypeName, `) 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, "{`,")
fieldname := p.GetOneOfFieldName(message, field)
if field.IsMessage() || p.IsGroup(field) {
desc := p.ObjectNamed(field.GetTypeName())
msgname := p.TypeName(desc)
msgnames := strings.Split(msgname, ".")
typeName := msgnames[len(msgnames)-1]
p.P("`", fieldname, ":`", ` + `, stringsPkg.Use(), `.Replace(`, fmtPkg.Use(), `.Sprintf("%v", this.`, fieldname, `), "`, typeName, `","`, msgname, `"`, ", 1) + `,", "`,")
} else {
p.P("`", fieldname, ":`", ` + `, fmtPkg.Use(), `.Sprintf("%v", this.`, fieldname, ") + `,", "`,")
}
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(`}`)
}
func (p *gostring) Generate(file *generator.FileDescriptor) {
proto3 := gogoproto.IsProto3(file.FileDescriptorProto)
p.PluginImports = generator.NewPluginImports(p.Generator)
p.atleastOne = false
p.localName = generator.FileName(file)
fmtPkg := p.NewImport("fmt")
stringsPkg := p.NewImport("strings")
protoPkg := p.NewImport("limbo.services/protobuf/proto")
if !gogoproto.ImportsGoGoProto(file.FileDescriptorProto) {
protoPkg = p.NewImport("github.com/golang/protobuf/proto")
}
sortPkg := p.NewImport("sort")
strconvPkg := p.NewImport("strconv")
reflectPkg := p.NewImport("reflect")
sortKeysPkg := p.NewImport("limbo.services/protobuf/sortkeys")
for _, message := range file.Messages() {
if !gogoproto.HasGoString(file.FileDescriptorProto, message.DescriptorProto) {
continue
}
if message.DescriptorProto.GetOptions().GetMapEntry() {
continue
}
p.atleastOne = true
packageName := file.PackageName()
ccTypeName := generator.CamelCaseSlice(message.TypeName())
p.P(`func (this *`, ccTypeName, `) GoString() string {`)
p.In()
p.P(`if this == nil {`)
p.In()
p.P(`return "nil"`)
p.Out()
p.P(`}`)
p.P(`s := make([]string, 0, `, strconv.Itoa(len(message.Field)+4), `)`)
p.P(`s = append(s, "&`, packageName, ".", ccTypeName, `{")`)
oneofs := make(map[string]struct{})
for _, field := range message.Field {
nullable := gogoproto.IsNullable(field)
repeated := field.IsRepeated()
fieldname := p.GetFieldName(message, field)
oneof := field.OneofIndex != nil
if oneof {
if _, ok := oneofs[fieldname]; ok {
continue
} else {
oneofs[fieldname] = struct{}{}
}
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
p.P(`s = append(s, "`, fieldname, `: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `) + ",\n")`)
p.Out()
p.P(`}`)
} else if p.IsMap(field) {
m := p.GoMapType(nil, field)
mapgoTyp, keyField, keyAliasField := m.GoType, m.KeyField, m.KeyAliasField
keysName := `keysFor` + fieldname
keygoTyp, _ := p.GoType(nil, keyField)
keygoTyp = strings.Replace(keygoTyp, "*", "", 1)
keygoAliasTyp, _ := p.GoType(nil, keyAliasField)
keygoAliasTyp = strings.Replace(keygoAliasTyp, "*", "", 1)
keyCapTyp := generator.CamelCase(keygoTyp)
p.P(keysName, ` := make([]`, keygoTyp, `, 0, len(this.`, fieldname, `))`)
p.P(`for k, _ := range this.`, fieldname, ` {`)
p.In()
if keygoAliasTyp == keygoTyp {
p.P(keysName, ` = append(`, keysName, `, k)`)
} else {
p.P(keysName, ` = append(`, keysName, `, `, keygoTyp, `(k))`)
}
p.Out()
p.P(`}`)
p.P(sortKeysPkg.Use(), `.`, keyCapTyp, `s(`, keysName, `)`)
mapName := `mapStringFor` + fieldname
p.P(mapName, ` := "`, mapgoTyp, `{"`)
p.P(`for _, k := range `, keysName, ` {`)
p.In()
if keygoAliasTyp == keygoTyp {
p.P(mapName, ` += fmt.Sprintf("%#v: %#v,", k, this.`, fieldname, `[k])`)
} else {
p.P(mapName, ` += fmt.Sprintf("%#v: %#v,", k, this.`, fieldname, `[`, keygoAliasTyp, `(k)])`)
}
p.Out()
p.P(`}`)
p.P(mapName, ` += "}"`)
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
p.P(`s = append(s, "`, fieldname, `: " + `, mapName, `+ ",\n")`)
p.Out()
p.P(`}`)
} else if field.IsMessage() || p.IsGroup(field) {
if nullable || repeated {
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
}
if nullable || repeated {
p.P(`s = append(s, "`, fieldname, `: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `) + ",\n")`)
} else {
p.P(`s = append(s, "`, fieldname, `: " + `, stringsPkg.Use(), `.Replace(this.`, fieldname, `.GoString()`, ",`&`,``,1)", ` + ",\n")`)
}
if nullable || repeated {
p.Out()
p.P(`}`)
}
} else {
if !proto3 && (nullable || repeated) {
p.P(`if this.`, fieldname, ` != nil {`)
p.In()
}
if field.IsEnum() {
if nullable && !repeated && !proto3 {
goTyp, _ := p.GoType(message, field)
p.P(`s = append(s, "`, fieldname, `: " + valueToGoString`, p.localName, `(this.`, fieldname, `,"`, packageName, ".", generator.GoTypeToName(goTyp), `"`, `) + ",\n")`)
} else {
p.P(`s = append(s, "`, fieldname, `: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `) + ",\n")`)
}
} else {
if nullable && !repeated && !proto3 {
goTyp, _ := p.GoType(message, field)
p.P(`s = append(s, "`, fieldname, `: " + valueToGoString`, p.localName, `(this.`, fieldname, `,"`, generator.GoTypeToName(goTyp), `"`, `) + ",\n")`)
} else {
p.P(`s = append(s, "`, fieldname, `: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `) + ",\n")`)
}
}
if !proto3 && (nullable || repeated) {
p.Out()
p.P(`}`)
}
}
}
if message.DescriptorProto.HasExtension() {
p.P(`if this.XXX_extensions != nil {`)
p.In()
if gogoproto.HasExtensionsMap(file.FileDescriptorProto, message.DescriptorProto) {
p.P(`s = append(s, "XXX_extensions: " + extensionToGoString`, p.localName, `(this.XXX_extensions) + ",\n")`)
} else {
p.P(`s = append(s, "XXX_extensions: " + `, fmtPkg.Use(), `.Sprintf("%#v", this.XXX_extensions) + ",\n")`)
}
p.Out()
p.P(`}`)
}
if gogoproto.HasUnrecognized(file.FileDescriptorProto, message.DescriptorProto) {
p.P(`if this.XXX_unrecognized != nil {`)
p.In()
p.P(`s = append(s, "XXX_unrecognized:" + `, fmtPkg.Use(), `.Sprintf("%#v", this.XXX_unrecognized) + ",\n")`)
p.Out()
p.P(`}`)
}
p.P(`s = append(s, "}")`)
//outStr += strings.Join([]string{" + `}`", `}`, `,", "`, ")"}, "")
p.P(`return `, stringsPkg.Use(), `.Join(s, "")`)
p.Out()
p.P(`}`)
//Generate GoString methods for oneof fields
for _, field := range message.Field {
oneof := field.OneofIndex != nil
if !oneof {
continue
}
ccTypeName := p.OneOfTypeName(message, field)
p.P(`func (this *`, ccTypeName, `) GoString() string {`)
p.In()
p.P(`if this == nil {`)
p.In()
p.P(`return "nil"`)
p.Out()
p.P(`}`)
outFlds := []string{}
fieldname := p.GetOneOfFieldName(message, field)
if field.IsMessage() || p.IsGroup(field) {
tmp := strings.Join([]string{"`", fieldname, ":` + "}, "")
tmp += strings.Join([]string{fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, `)`}, "")
outFlds = append(outFlds, tmp)
} else {
tmp := strings.Join([]string{"`", fieldname, ":` + "}, "")
tmp += strings.Join([]string{fmtPkg.Use(), `.Sprintf("%#v", this.`, fieldname, ")"}, "")
outFlds = append(outFlds, tmp)
}
outStr := strings.Join([]string{"s := ", stringsPkg.Use(), ".Join([]string{`&", packageName, ".", ccTypeName, "{` + \n"}, "")
outStr += strings.Join(outFlds, ",\n")
outStr += strings.Join([]string{" + `}`", `}`, `,", "`, ")"}, "")
p.P(outStr)
p.P(`return s`)
p.Out()
p.P(`}`)
}
}
if !p.atleastOne {
return
}
p.P(`func valueToGoString`, p.localName, `(v interface{}, typ string) string {`)
p.In()
p.P(`rv := `, reflectPkg.Use(), `.ValueOf(v)`)
p.P(`if rv.IsNil() {`)
p.In()
p.P(`return "nil"`)
p.Out()
p.P(`}`)
p.P(`pv := `, reflectPkg.Use(), `.Indirect(rv).Interface()`)
p.P(`return `, fmtPkg.Use(), `.Sprintf("func(v %v) *%v { return &v } ( %#v )", typ, typ, pv)`)
p.Out()
p.P(`}`)
p.P(`func extensionToGoString`, p.localName, `(e map[int32]`, protoPkg.Use(), `.Extension) string {`)
p.In()
p.P(`if e == nil { return "nil" }`)
p.P(`s := "map[int32]proto.Extension{"`)
p.P(`keys := make([]int, 0, len(e))`)
p.P(`for k := range e {`)
p.In()
p.P(`keys = append(keys, int(k))`)
p.Out()
p.P(`}`)
p.P(sortPkg.Use(), `.Ints(keys)`)
p.P(`ss := []string{}`)
p.P(`for _, k := range keys {`)
p.In()
p.P(`ss = append(ss, `, strconvPkg.Use(), `.Itoa(k) + ": " + e[int32(k)].GoString())`)
p.Out()
p.P(`}`)
p.P(`s+=`, stringsPkg.Use(), `.Join(ss, ",") + "}"`)
p.P(`return s`)
p.Out()
p.P(`}`)
}
// generateService generates all the code for the named service.
func (g *svchttp) generateService(file *generator.FileDescriptor, service *pb.ServiceDescriptorProto, index int) {
apis := filterAPIs(service, service.Method, index)
if len(apis) == 0 {
return
}
origServName := service.GetName()
fullServName := file.GetPackage() + "." + origServName
servName := generator.CamelCase(origServName)
gatewayVarName := "_" + servName + "_gatewayDesc"
g.gen.AddInitf("%s.RegisterGatewayDesc(&%s)", g.runtimePkg.Use(), gatewayVarName)
g.P(`var `, gatewayVarName, ` = `, g.runtimePkg.Use(), `.GatewayDesc{`)
g.P(`ServiceName: `, strconv.Quote(fullServName), `,`)
g.P(`HandlerType: ((*`, servName, `Server)(nil)),`)
g.P(`Routes: []`, g.runtimePkg.Use(), `.RouteDesc{`)
for _, api := range apis {
_, method := api.desc, api.method
httpMethod, pattern, ok := api.GetMethodAndPattern()
if !ok {
g.gen.Fail("xyz.featherhead.http requires a method: pattern")
}
if idx := strings.IndexRune(pattern, '?'); idx >= 0 {
pattern = pattern[:idx]
}
g.P(`{`)
g.P(`Method: `, strconv.Quote(httpMethod), `,`)
g.P(`Pattern: `, strconv.Quote(pattern), `,`)
g.P(`Handler: `, g.generateServerCallName(servName, method), `,`)
g.P("},")
}
g.P("},")
g.P("}")
g.P()
// Server handler implementations.
for _, api := range apis {
info, method := api.desc, api.method
inputTypeName := method.GetInputType()
inputType, _ := g.gen.ObjectNamed(inputTypeName).(*generator.Descriptor)
httpMethod, pattern, ok := api.GetMethodAndPattern()
queryParams := map[string]string{}
if !ok {
g.gen.Fail("xyz.featherhead.http requires a method: pattern")
}
if idx := strings.IndexRune(pattern, '?'); idx >= 0 {
queryString := pattern[idx+1:]
pattern = pattern[:idx]
for _, pair := range strings.SplitN(queryString, "&", -1) {
idx := strings.Index(pair, "={")
if pair[len(pair)-1] != '}' || idx < 0 {
g.gen.Fail("invalid query paramter")
}
queryParams[pair[:idx]] = pair[idx+2 : len(pair)-1]
}
}
vars, err := router.ExtractVariables(pattern)
if err != nil {
g.gen.Error(err)
return
}
var (
httpResponseWriter = g.httpPkg.Use() + ".ResponseWriter"
httpRequest = g.httpPkg.Use() + ".Request"
contextContext = g.contextPkg.Use() + ".Context"
)
handlerMethod := g.generateServerCallName(servName, method)
jujuErrors := g.jujuErrorsPkg.Use()
g.P("func ", handlerMethod, "(srvDesc *", g.grpcPkg.Use(), ".ServiceDesc, srv interface{}, ctx ", contextContext, ", rw ", httpResponseWriter, ", req *", httpRequest, ") error {")
g.P("if req.Method != ", strconv.Quote(httpMethod), "{")
g.P(` return `, jujuErrors, `.MethodNotAllowedf("expected `, httpMethod, ` request")`)
g.P("}")
g.P()
if len(vars) > 0 {
routerP := g.routerPkg.Use() + ".P"
g.P(`params := `, routerP, `(ctx)`)
}
g.P(`stream, err := `, g.runtimePkg.Use(), `.NewServerStream(ctx, rw, req, `,
method.GetServerStreaming(), `, `, method.GetClientStreaming(), `, `, int(info.PageSize), `, func(x interface{}) error {`)
g.P(`input := x.(*`, g.typeName(inputTypeName), `)`)
g.P(`_ = input`)
g.P()
for param, value := range queryParams {
g.P("// populate ?", param, "=", value)
g.generateHttpMapping(inputType, value, "req.URL.Query().Get("+strconv.Quote(param)+")")
}
for _, v := range vars {
g.P("// populate {", v.Name, "}")
g.generateHttpMapping(inputType, v.Name, "params.Get("+strconv.Quote(v.Name)+")")
}
g.P(`return nil`)
g.P(`})`)
g.P()
if !api.stream {
g.P(`desc := &srvDesc.Methods[`, api.index, `]`)
g.P(`output, err := desc.Handler(srv, stream.Context(), stream.RecvMsg, nil)`)
g.P(`if err == nil && output == nil {`)
g.P(`err = `, g.grpcPkg.Use(), `.Errorf(`, g.grpcCodesPkg.Use(), `.Internal, "internal server error")`)
g.P(`}`)
g.P(`if err == nil {`)
g.P(`err = stream.SendMsg(output)`)
g.P(`}`)
} else {
g.P(`desc := &srvDesc.Streams[`, api.index, `]`)
g.P(`err = desc.Handler(srv, stream)`)
}
g.P(`if err != nil {`)
g.P(`stream.SetError(err)`)
g.P(`}`)
g.P()
g.P(`return stream.CloseSend()`)
g.P("}")
g.P()
}
}