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protobuf: remove gogoproto

Browse Source 
Removes gogo/protobuf from buildx and updates to a version of
moby/buildkit where gogo is removed.

This also changes how the proto files are generated. This is because
newer versions of protobuf are more strict about name conflicts. If two
files have the same name (even if they are relative paths) and are used
in different protoc commands, they'll conflict in the registry.

Since protobuf file generation doesn't work very well with
`paths=source_relative`, this removes the `go:generate` expression and
just relies on the dockerfile to perform the generation.

Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
This commit is contained in:
Jonathan A. Sternberg
2024-10-02 15:51:59 -05:00
parent 8e47387d02
commit b35a0f4718
592 changed files with 46288 additions and 110420 deletions
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vendor/google.golang.org/grpc/cmd/protoc-gen-go-grpc/README.md generated vendored Normal file
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# protoc-gen-go-grpc
This tool generates Go language bindings of `service`s in protobuf definition
files for gRPC. For usage information, please see our [quick start
guide](https://grpc.io/docs/languages/go/quickstart/).
## Future-proofing services
By default, to register services using the methods generated by this tool, the
service implementations must embed the corresponding
`Unimplemented<ServiceName>Server` for future compatibility. This is a behavior
change from the grpc code generator previously included with `protoc-gen-go`.
To restore this behavior, set the option `require_unimplemented_servers=false`.
E.g.:
```sh
protoc --go-grpc_out=. --go-grpc_opt=require_unimplemented_servers=false[,other options...] \
```
Note that this is not recommended, and the option is only provided to restore
backward compatibility with previously-generated code.
When embedding the `Unimplemented<ServiceName>Server` in a struct that
implements the service, it should be embedded by _value_ instead of as a
_pointer_. If it is embedded as a pointer, it must be assigned to a valid,
non-nil pointer or else unimplemented methods would panic when called. This is
tested at service registration time, and will lead to a panic in
`Register<ServiceName>Server` if it is not embedded properly.

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vendor/google.golang.org/grpc/cmd/protoc-gen-go-grpc/grpc.go generated vendored Normal file
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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package main
import (
"fmt"
"strconv"
"strings"
"google.golang.org/protobuf/compiler/protogen"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/types/descriptorpb"
)
const (
contextPackage = protogen.GoImportPath("context")
grpcPackage = protogen.GoImportPath("google.golang.org/grpc")
codesPackage = protogen.GoImportPath("google.golang.org/grpc/codes")
statusPackage = protogen.GoImportPath("google.golang.org/grpc/status")
)
type serviceGenerateHelperInterface interface {
formatFullMethodSymbol(service *protogen.Service, method *protogen.Method) string
genFullMethods(g *protogen.GeneratedFile, service *protogen.Service)
generateClientStruct(g *protogen.GeneratedFile, clientName string)
generateNewClientDefinitions(g *protogen.GeneratedFile, service *protogen.Service, clientName string)
generateUnimplementedServerType(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile, service *protogen.Service)
generateServerFunctions(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile, service *protogen.Service, serverType string, serviceDescVar string)
formatHandlerFuncName(service *protogen.Service, hname string) string
}
type serviceGenerateHelper struct{}
func (serviceGenerateHelper) formatFullMethodSymbol(service *protogen.Service, method *protogen.Method) string {
return fmt.Sprintf("%s_%s_FullMethodName", service.GoName, method.GoName)
}
func (serviceGenerateHelper) genFullMethods(g *protogen.GeneratedFile, service *protogen.Service) {
if len(service.Methods) == 0 {
return
}
g.P("const (")
for _, method := range service.Methods {
fmSymbol := helper.formatFullMethodSymbol(service, method)
fmName := fmt.Sprintf("/%s/%s", service.Desc.FullName(), method.Desc.Name())
g.P(fmSymbol, ` = "`, fmName, `"`)
}
g.P(")")
g.P()
}
func (serviceGenerateHelper) generateClientStruct(g *protogen.GeneratedFile, clientName string) {
g.P("type ", unexport(clientName), " struct {")
g.P("cc ", grpcPackage.Ident("ClientConnInterface"))
g.P("}")
g.P()
}
func (serviceGenerateHelper) generateNewClientDefinitions(g *protogen.GeneratedFile, service *protogen.Service, clientName string) {
g.P("return &", unexport(clientName), "{cc}")
}
func (serviceGenerateHelper) generateUnimplementedServerType(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile, service *protogen.Service) {
serverType := service.GoName + "Server"
mustOrShould := "must"
if !*requireUnimplemented {
mustOrShould = "should"
}
// Server Unimplemented struct for forward compatibility.
g.P("// Unimplemented", serverType, " ", mustOrShould, " be embedded to have")
g.P("// forward compatible implementations.")
g.P("//")
g.P("// NOTE: this should be embedded by value instead of pointer to avoid a nil")
g.P("// pointer dereference when methods are called.")
g.P("type Unimplemented", serverType, " struct {}")
g.P()
for _, method := range service.Methods {
nilArg := ""
if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
nilArg = "nil,"
}
g.P("func (Unimplemented", serverType, ") ", serverSignature(g, method), "{")
g.P("return ", nilArg, statusPackage.Ident("Errorf"), "(", codesPackage.Ident("Unimplemented"), `, "method `, method.GoName, ` not implemented")`)
g.P("}")
}
if *requireUnimplemented {
g.P("func (Unimplemented", serverType, ") mustEmbedUnimplemented", serverType, "() {}")
}
g.P("func (Unimplemented", serverType, ") testEmbeddedByValue() {}")
g.P()
}
func (serviceGenerateHelper) generateServerFunctions(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile, service *protogen.Service, serverType string, serviceDescVar string) {
// Server handler implementations.
handlerNames := make([]string, 0, len(service.Methods))
for _, method := range service.Methods {
hname := genServerMethod(gen, file, g, method, func(hname string) string {
return hname
})
handlerNames = append(handlerNames, hname)
}
genServiceDesc(file, g, serviceDescVar, serverType, service, handlerNames)
}
func (serviceGenerateHelper) formatHandlerFuncName(service *protogen.Service, hname string) string {
return hname
}
var helper serviceGenerateHelperInterface = serviceGenerateHelper{}
// FileDescriptorProto.package field number
const fileDescriptorProtoPackageFieldNumber = 2
// FileDescriptorProto.syntax field number
const fileDescriptorProtoSyntaxFieldNumber = 12
// generateFile generates a _grpc.pb.go file containing gRPC service definitions.
func generateFile(gen *protogen.Plugin, file *protogen.File) *protogen.GeneratedFile {
if len(file.Services) == 0 {
return nil
}
filename := file.GeneratedFilenamePrefix + "_grpc.pb.go"
g := gen.NewGeneratedFile(filename, file.GoImportPath)
// Attach all comments associated with the syntax field.
genLeadingComments(g, file.Desc.SourceLocations().ByPath(protoreflect.SourcePath{fileDescriptorProtoSyntaxFieldNumber}))
g.P("// Code generated by protoc-gen-go-grpc. DO NOT EDIT.")
g.P("// versions:")
g.P("// - protoc-gen-go-grpc v", version)
g.P("// - protoc ", protocVersion(gen))
if file.Proto.GetOptions().GetDeprecated() {
g.P("// ", file.Desc.Path(), " is a deprecated file.")
} else {
g.P("// source: ", file.Desc.Path())
}
g.P()
// Attach all comments associated with the package field.
genLeadingComments(g, file.Desc.SourceLocations().ByPath(protoreflect.SourcePath{fileDescriptorProtoPackageFieldNumber}))
g.P("package ", file.GoPackageName)
g.P()
generateFileContent(gen, file, g)
return g
}
func protocVersion(gen *protogen.Plugin) string {
v := gen.Request.GetCompilerVersion()
if v == nil {
return "(unknown)"
}
var suffix string
if s := v.GetSuffix(); s != "" {
suffix = "-" + s
}
return fmt.Sprintf("v%d.%d.%d%s", v.GetMajor(), v.GetMinor(), v.GetPatch(), suffix)
}
// generateFileContent generates the gRPC service definitions, excluding the package statement.
func generateFileContent(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile) {
if len(file.Services) == 0 {
return
}
g.P("// This is a compile-time assertion to ensure that this generated file")
g.P("// is compatible with the grpc package it is being compiled against.")
if *useGenericStreams {
g.P("// Requires gRPC-Go v1.64.0 or later.")
g.P("const _ = ", grpcPackage.Ident("SupportPackageIsVersion9"))
} else {
g.P("// Requires gRPC-Go v1.62.0 or later.")
g.P("const _ = ", grpcPackage.Ident("SupportPackageIsVersion8")) // When changing, update version number above.
}
g.P()
for _, service := range file.Services {
genService(gen, file, g, service)
}
}
// genServiceComments copies the comments from the RPC proto definitions
// to the corresponding generated interface file.
func genServiceComments(g *protogen.GeneratedFile, service *protogen.Service) {
if service.Comments.Leading != "" {
// Add empty comment line to attach this service's comments to
// the godoc comments previously output for all services.
g.P("//")
g.P(strings.TrimSpace(service.Comments.Leading.String()))
}
}
func genService(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile, service *protogen.Service) {
// Full methods constants.
helper.genFullMethods(g, service)
// Client interface.
clientName := service.GoName + "Client"
g.P("// ", clientName, " is the client API for ", service.GoName, " service.")
g.P("//")
g.P("// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.")
// Copy comments from proto file.
genServiceComments(g, service)
if service.Desc.Options().(*descriptorpb.ServiceOptions).GetDeprecated() {
g.P("//")
g.P(deprecationComment)
}
g.AnnotateSymbol(clientName, protogen.Annotation{Location: service.Location})
g.P("type ", clientName, " interface {")
for _, method := range service.Methods {
g.AnnotateSymbol(clientName+"."+method.GoName, protogen.Annotation{Location: method.Location})
if method.Desc.Options().(*descriptorpb.MethodOptions).GetDeprecated() {
g.P(deprecationComment)
}
g.P(method.Comments.Leading,
clientSignature(g, method))
}
g.P("}")
g.P()
// Client structure.
helper.generateClientStruct(g, clientName)
// NewClient factory.
if service.Desc.Options().(*descriptorpb.ServiceOptions).GetDeprecated() {
g.P(deprecationComment)
}
g.P("func New", clientName, " (cc ", grpcPackage.Ident("ClientConnInterface"), ") ", clientName, " {")
helper.generateNewClientDefinitions(g, service, clientName)
g.P("}")
g.P()
var methodIndex, streamIndex int
// Client method implementations.
for _, method := range service.Methods {
if !method.Desc.IsStreamingServer() && !method.Desc.IsStreamingClient() {
// Unary RPC method
genClientMethod(gen, file, g, method, methodIndex)
methodIndex++
} else {
// Streaming RPC method
genClientMethod(gen, file, g, method, streamIndex)
streamIndex++
}
}
mustOrShould := "must"
if !*requireUnimplemented {
mustOrShould = "should"
}
// Server interface.
serverType := service.GoName + "Server"
g.P("// ", serverType, " is the server API for ", service.GoName, " service.")
g.P("// All implementations ", mustOrShould, " embed Unimplemented", serverType)
g.P("// for forward compatibility.")
// Copy comments from proto file.
genServiceComments(g, service)
if service.Desc.Options().(*descriptorpb.ServiceOptions).GetDeprecated() {
g.P("//")
g.P(deprecationComment)
}
g.AnnotateSymbol(serverType, protogen.Annotation{Location: service.Location})
g.P("type ", serverType, " interface {")
for _, method := range service.Methods {
g.AnnotateSymbol(serverType+"."+method.GoName, protogen.Annotation{Location: method.Location})
if method.Desc.Options().(*descriptorpb.MethodOptions).GetDeprecated() {
g.P(deprecationComment)
}
g.P(method.Comments.Leading,
serverSignature(g, method))
}
if *requireUnimplemented {
g.P("mustEmbedUnimplemented", serverType, "()")
}
g.P("}")
g.P()
// Server Unimplemented struct for forward compatibility.
helper.generateUnimplementedServerType(gen, file, g, service)
// Unsafe Server interface to opt-out of forward compatibility.
g.P("// Unsafe", serverType, " may be embedded to opt out of forward compatibility for this service.")
g.P("// Use of this interface is not recommended, as added methods to ", serverType, " will")
g.P("// result in compilation errors.")
g.P("type Unsafe", serverType, " interface {")
g.P("mustEmbedUnimplemented", serverType, "()")
g.P("}")
// Server registration.
if service.Desc.Options().(*descriptorpb.ServiceOptions).GetDeprecated() {
g.P(deprecationComment)
}
serviceDescVar := service.GoName + "_ServiceDesc"
g.P("func Register", service.GoName, "Server(s ", grpcPackage.Ident("ServiceRegistrar"), ", srv ", serverType, ") {")
g.P("// If the following call pancis, it indicates Unimplemented", serverType, " was")
g.P("// embedded by pointer and is nil. This will cause panics if an")
g.P("// unimplemented method is ever invoked, so we test this at initialization")
g.P("// time to prevent it from happening at runtime later due to I/O.")
g.P("if t, ok := srv.(interface { testEmbeddedByValue() }); ok {")
g.P("t.testEmbeddedByValue()")
g.P("}")
g.P("s.RegisterService(&", serviceDescVar, `, srv)`)
g.P("}")
g.P()
helper.generateServerFunctions(gen, file, g, service, serverType, serviceDescVar)
}
func clientSignature(g *protogen.GeneratedFile, method *protogen.Method) string {
s := method.GoName + "(ctx " + g.QualifiedGoIdent(contextPackage.Ident("Context"))
if !method.Desc.IsStreamingClient() {
s += ", in *" + g.QualifiedGoIdent(method.Input.GoIdent)
}
s += ", opts ..." + g.QualifiedGoIdent(grpcPackage.Ident("CallOption")) + ") ("
if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
s += "*" + g.QualifiedGoIdent(method.Output.GoIdent)
} else {
if *useGenericStreams {
s += clientStreamInterface(g, method)
} else {
s += method.Parent.GoName + "_" + method.GoName + "Client"
}
}
s += ", error)"
return s
}
func clientStreamInterface(g *protogen.GeneratedFile, method *protogen.Method) string {
typeParam := g.QualifiedGoIdent(method.Input.GoIdent) + ", " + g.QualifiedGoIdent(method.Output.GoIdent)
if method.Desc.IsStreamingClient() && method.Desc.IsStreamingServer() {
return g.QualifiedGoIdent(grpcPackage.Ident("BidiStreamingClient")) + "[" + typeParam + "]"
} else if method.Desc.IsStreamingClient() {
return g.QualifiedGoIdent(grpcPackage.Ident("ClientStreamingClient")) + "[" + typeParam + "]"
} else { // i.e. if method.Desc.IsStreamingServer()
return g.QualifiedGoIdent(grpcPackage.Ident("ServerStreamingClient")) + "[" + g.QualifiedGoIdent(method.Output.GoIdent) + "]"
}
}
func genClientMethod(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile, method *protogen.Method, index int) {
service := method.Parent
fmSymbol := helper.formatFullMethodSymbol(service, method)
if method.Desc.Options().(*descriptorpb.MethodOptions).GetDeprecated() {
g.P(deprecationComment)
}
g.P("func (c *", unexport(service.GoName), "Client) ", clientSignature(g, method), "{")
g.P("cOpts := append([]", grpcPackage.Ident("CallOption"), "{", grpcPackage.Ident("StaticMethod()"), "}, opts...)")
if !method.Desc.IsStreamingServer() && !method.Desc.IsStreamingClient() {
g.P("out := new(", method.Output.GoIdent, ")")
g.P(`err := c.cc.Invoke(ctx, `, fmSymbol, `, in, out, cOpts...)`)
g.P("if err != nil { return nil, err }")
g.P("return out, nil")
g.P("}")
g.P()
return
}
streamImpl := unexport(service.GoName) + method.GoName + "Client"
if *useGenericStreams {
typeParam := g.QualifiedGoIdent(method.Input.GoIdent) + ", " + g.QualifiedGoIdent(method.Output.GoIdent)
streamImpl = g.QualifiedGoIdent(grpcPackage.Ident("GenericClientStream")) + "[" + typeParam + "]"
}
serviceDescVar := service.GoName + "_ServiceDesc"
g.P("stream, err := c.cc.NewStream(ctx, &", serviceDescVar, ".Streams[", index, `], `, fmSymbol, `, cOpts...)`)
g.P("if err != nil { return nil, err }")
g.P("x := &", streamImpl, "{ClientStream: stream}")
if !method.Desc.IsStreamingClient() {
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()
// Auxiliary types aliases, for backwards compatibility.
if *useGenericStreams {
g.P("// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.")
g.P("type ", service.GoName, "_", method.GoName, "Client = ", clientStreamInterface(g, method))
g.P()
return
}
// Stream auxiliary types and methods, if we're not taking advantage of the
// pre-implemented generic types and their methods.
genSend := method.Desc.IsStreamingClient()
genRecv := method.Desc.IsStreamingServer()
genCloseAndRecv := !method.Desc.IsStreamingServer()
g.P("type ", service.GoName, "_", method.GoName, "Client interface {")
if genSend {
g.P("Send(*", method.Input.GoIdent, ") error")
}
if genRecv {
g.P("Recv() (*", method.Output.GoIdent, ", error)")
}
if genCloseAndRecv {
g.P("CloseAndRecv() (*", method.Output.GoIdent, ", error)")
}
g.P(grpcPackage.Ident("ClientStream"))
g.P("}")
g.P()
g.P("type ", streamImpl, " struct {")
g.P(grpcPackage.Ident("ClientStream"))
g.P("}")
g.P()
if genSend {
g.P("func (x *", streamImpl, ") Send(m *", method.Input.GoIdent, ") error {")
g.P("return x.ClientStream.SendMsg(m)")
g.P("}")
g.P()
}
if genRecv {
g.P("func (x *", streamImpl, ") Recv() (*", method.Output.GoIdent, ", error) {")
g.P("m := new(", method.Output.GoIdent, ")")
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 *", streamImpl, ") CloseAndRecv() (*", method.Output.GoIdent, ", error) {")
g.P("if err := x.ClientStream.CloseSend(); err != nil { return nil, err }")
g.P("m := new(", method.Output.GoIdent, ")")
g.P("if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }")
g.P("return m, nil")
g.P("}")
g.P()
}
}
func serverSignature(g *protogen.GeneratedFile, method *protogen.Method) string {
var reqArgs []string
ret := "error"
if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
reqArgs = append(reqArgs, g.QualifiedGoIdent(contextPackage.Ident("Context")))
ret = "(*" + g.QualifiedGoIdent(method.Output.GoIdent) + ", error)"
}
if !method.Desc.IsStreamingClient() {
reqArgs = append(reqArgs, "*"+g.QualifiedGoIdent(method.Input.GoIdent))
}
if method.Desc.IsStreamingClient() || method.Desc.IsStreamingServer() {
if *useGenericStreams {
reqArgs = append(reqArgs, serverStreamInterface(g, method))
} else {
reqArgs = append(reqArgs, method.Parent.GoName+"_"+method.GoName+"Server")
}
}
return method.GoName + "(" + strings.Join(reqArgs, ", ") + ") " + ret
}
func genServiceDesc(file *protogen.File, g *protogen.GeneratedFile, serviceDescVar string, serverType string, service *protogen.Service, handlerNames []string) {
// Service descriptor.
g.P("// ", serviceDescVar, " is the ", grpcPackage.Ident("ServiceDesc"), " for ", service.GoName, " service.")
g.P("// It's only intended for direct use with ", grpcPackage.Ident("RegisterService"), ",")
g.P("// and not to be introspected or modified (even as a copy)")
g.P("var ", serviceDescVar, " = ", grpcPackage.Ident("ServiceDesc"), " {")
g.P("ServiceName: ", strconv.Quote(string(service.Desc.FullName())), ",")
g.P("HandlerType: (*", serverType, ")(nil),")
g.P("Methods: []", grpcPackage.Ident("MethodDesc"), "{")
for i, method := range service.Methods {
if method.Desc.IsStreamingClient() || method.Desc.IsStreamingServer() {
continue
}
g.P("{")
g.P("MethodName: ", strconv.Quote(string(method.Desc.Name())), ",")
g.P("Handler: ", handlerNames[i], ",")
g.P("},")
}
g.P("},")
g.P("Streams: []", grpcPackage.Ident("StreamDesc"), "{")
for i, method := range service.Methods {
if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
continue
}
g.P("{")
g.P("StreamName: ", strconv.Quote(string(method.Desc.Name())), ",")
g.P("Handler: ", handlerNames[i], ",")
if method.Desc.IsStreamingServer() {
g.P("ServerStreams: true,")
}
if method.Desc.IsStreamingClient() {
g.P("ClientStreams: true,")
}
g.P("},")
}
g.P("},")
g.P("Metadata: \"", file.Desc.Path(), "\",")
g.P("}")
g.P()
}
func serverStreamInterface(g *protogen.GeneratedFile, method *protogen.Method) string {
typeParam := g.QualifiedGoIdent(method.Input.GoIdent) + ", " + g.QualifiedGoIdent(method.Output.GoIdent)
if method.Desc.IsStreamingClient() && method.Desc.IsStreamingServer() {
return g.QualifiedGoIdent(grpcPackage.Ident("BidiStreamingServer")) + "[" + typeParam + "]"
} else if method.Desc.IsStreamingClient() {
return g.QualifiedGoIdent(grpcPackage.Ident("ClientStreamingServer")) + "[" + typeParam + "]"
} else { // i.e. if method.Desc.IsStreamingServer()
return g.QualifiedGoIdent(grpcPackage.Ident("ServerStreamingServer")) + "[" + g.QualifiedGoIdent(method.Output.GoIdent) + "]"
}
}
func genServerMethod(gen *protogen.Plugin, file *protogen.File, g *protogen.GeneratedFile, method *protogen.Method, hnameFuncNameFormatter func(string) string) string {
service := method.Parent
hname := fmt.Sprintf("_%s_%s_Handler", service.GoName, method.GoName)
if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
g.P("func ", hnameFuncNameFormatter(hname), "(srv interface{}, ctx ", contextPackage.Ident("Context"), ", dec func(interface{}) error, interceptor ", grpcPackage.Ident("UnaryServerInterceptor"), ") (interface{}, error) {")
g.P("in := new(", method.Input.GoIdent, ")")
g.P("if err := dec(in); err != nil { return nil, err }")
g.P("if interceptor == nil { return srv.(", service.GoName, "Server).", method.GoName, "(ctx, in) }")
g.P("info := &", grpcPackage.Ident("UnaryServerInfo"), "{")
g.P("Server: srv,")
fmSymbol := helper.formatFullMethodSymbol(service, method)
g.P("FullMethod: ", fmSymbol, ",")
g.P("}")
g.P("handler := func(ctx ", contextPackage.Ident("Context"), ", req interface{}) (interface{}, error) {")
g.P("return srv.(", service.GoName, "Server).", method.GoName, "(ctx, req.(*", method.Input.GoIdent, "))")
g.P("}")
g.P("return interceptor(ctx, in, info, handler)")
g.P("}")
g.P()
return hname
}
streamImpl := unexport(service.GoName) + method.GoName + "Server"
if *useGenericStreams {
typeParam := g.QualifiedGoIdent(method.Input.GoIdent) + ", " + g.QualifiedGoIdent(method.Output.GoIdent)
streamImpl = g.QualifiedGoIdent(grpcPackage.Ident("GenericServerStream")) + "[" + typeParam + "]"
}
g.P("func ", hnameFuncNameFormatter(hname), "(srv interface{}, stream ", grpcPackage.Ident("ServerStream"), ") error {")
if !method.Desc.IsStreamingClient() {
g.P("m := new(", method.Input.GoIdent, ")")
g.P("if err := stream.RecvMsg(m); err != nil { return err }")
g.P("return srv.(", service.GoName, "Server).", method.GoName, "(m, &", streamImpl, "{ServerStream: stream})")
} else {
g.P("return srv.(", service.GoName, "Server).", method.GoName, "(&", streamImpl, "{ServerStream: stream})")
}
g.P("}")
g.P()
// Auxiliary types aliases, for backwards compatibility.
if *useGenericStreams {
g.P("// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.")
g.P("type ", service.GoName, "_", method.GoName, "Server = ", serverStreamInterface(g, method))
g.P()
return hname
}
// Stream auxiliary types and methods, if we're not taking advantage of the
// pre-implemented generic types and their methods.
genSend := method.Desc.IsStreamingServer()
genSendAndClose := !method.Desc.IsStreamingServer()
genRecv := method.Desc.IsStreamingClient()
g.P("type ", service.GoName, "_", method.GoName, "Server interface {")
if genSend {
g.P("Send(*", method.Output.GoIdent, ") error")
}
if genSendAndClose {
g.P("SendAndClose(*", method.Output.GoIdent, ") error")
}
if genRecv {
g.P("Recv() (*", method.Input.GoIdent, ", error)")
}
g.P(grpcPackage.Ident("ServerStream"))
g.P("}")
g.P()
g.P("type ", streamImpl, " struct {")
g.P(grpcPackage.Ident("ServerStream"))
g.P("}")
g.P()
if genSend {
g.P("func (x *", streamImpl, ") Send(m *", method.Output.GoIdent, ") error {")
g.P("return x.ServerStream.SendMsg(m)")
g.P("}")
g.P()
}
if genSendAndClose {
g.P("func (x *", streamImpl, ") SendAndClose(m *", method.Output.GoIdent, ") error {")
g.P("return x.ServerStream.SendMsg(m)")
g.P("}")
g.P()
}
if genRecv {
g.P("func (x *", streamImpl, ") Recv() (*", method.Input.GoIdent, ", error) {")
g.P("m := new(", method.Input.GoIdent, ")")
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 genLeadingComments(g *protogen.GeneratedFile, loc protoreflect.SourceLocation) {
for _, s := range loc.LeadingDetachedComments {
g.P(protogen.Comments(s))
g.P()
}
if s := loc.LeadingComments; s != "" {
g.P(protogen.Comments(s))
g.P()
}
}
const deprecationComment = "// Deprecated: Do not use."
func unexport(s string) string { return strings.ToLower(s[:1]) + s[1:] }

76
vendor/google.golang.org/grpc/cmd/protoc-gen-go-grpc/main.go generated vendored Normal file
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@ -0,0 +1,76 @@
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// protoc-gen-go-grpc is a plugin for the Google protocol buffer compiler to
// generate Go code. Install it by building this program and making it
// accessible within your PATH with the name:
//
// protoc-gen-go-grpc
//
// The 'go-grpc' suffix becomes part of the argument for the protocol compiler,
// such that it can be invoked as:
//
// protoc --go-grpc_out=. path/to/file.proto
//
// This generates Go service definitions for the protocol buffer defined by
// file.proto. With that input, the output will be written to:
//
// path/to/file_grpc.pb.go
package main
import (
"flag"
"fmt"
"google.golang.org/protobuf/compiler/protogen"
"google.golang.org/protobuf/types/descriptorpb"
"google.golang.org/protobuf/types/pluginpb"
)
const version = "1.5.1"
var requireUnimplemented *bool
var useGenericStreams *bool
func main() {
showVersion := flag.Bool("version", false, "print the version and exit")
flag.Parse()
if *showVersion {
fmt.Printf("protoc-gen-go-grpc %v\n", version)
return
}
var flags flag.FlagSet
requireUnimplemented = flags.Bool("require_unimplemented_servers", true, "set to false to match legacy behavior")
useGenericStreams = flags.Bool("use_generic_streams_experimental", true, "set to true to use generic types for streaming client and server objects; this flag is EXPERIMENTAL and may be changed or removed in a future release")
protogen.Options{
ParamFunc: flags.Set,
}.Run(func(gen *protogen.Plugin) error {
gen.SupportedFeatures = uint64(pluginpb.CodeGeneratorResponse_FEATURE_PROTO3_OPTIONAL) | uint64(pluginpb.CodeGeneratorResponse_FEATURE_SUPPORTS_EDITIONS)
gen.SupportedEditionsMinimum = descriptorpb.Edition_EDITION_PROTO2
gen.SupportedEditionsMaximum = descriptorpb.Edition_EDITION_2023
for _, f := range gen.Files {
if !f.Generate {
continue
}
generateFile(gen, f)
}
return nil
})
}

50
vendor/google.golang.org/grpc/cmd/protoc-gen-go-grpc/protoc-gen-go-grpc_test.sh generated vendored Normal file
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@ -0,0 +1,50 @@
#!/bin/bash -e
# Copyright 2024 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Uncomment to enable debugging.
# set -x
WORKDIR="$(dirname $0)"
TEMPDIR=$(mktemp -d)
trap "rm -rf ${TEMPDIR}" EXIT
# Build protoc-gen-go-grpc binary and add to $PATH.
pushd "${WORKDIR}"
go build -o "${TEMPDIR}" .
PATH="${TEMPDIR}:${PATH}"
popd
protoc \
--go-grpc_out="${TEMPDIR}" \
--go-grpc_opt=paths=source_relative,use_generic_streams_experimental=true \
"examples/route_guide/routeguide/route_guide.proto"
GOLDENFILE="examples/route_guide/routeguide/route_guide_grpc.pb.go"
GENFILE="${TEMPDIR}/examples/route_guide/routeguide/route_guide_grpc.pb.go"
# diff is piped to [[ $? == 1 ]] to avoid exiting on diff but exit on error
# (like if the file was not found). See man diff for more info.
DIFF=$(diff "${GOLDENFILE}" "${GENFILE}" || [[ $? == 1 ]])
if [[ -n "${DIFF}" ]]; then
echo -e "ERROR: Generated file differs from golden file:\n${DIFF}"
echo -e "If you have made recent changes to protoc-gen-go-grpc," \
"please regenerate the golden files by running:" \
"\n\t go generate google.golang.org/grpc/..." >&2
exit 1
fi
echo SUCCESS