Qi Zhao
Коммит
242e1abca2
|
|
@ -0,0 +1,18 @@
|
|||
CC=g++
|
||||
CFLAGS=-c -Wall `pkg-config --cflags protobuf` -std=c++11
|
||||
LDFLAGS=-g
|
||||
LDLIBS=`pkg-config --libs protobuf` -lprotoc
|
||||
SOURCES=go_generator.cc go_plugin.cc
|
||||
OBJECTS=$(SOURCES:.cc=.o)
|
||||
EXECUTABLE=go_plugin
|
||||
|
||||
all: $(EXECUTABLE)
|
||||
|
||||
$(EXECUTABLE): $(OBJECTS)
|
||||
$(CC) $(LDFLAGS) $(OBJECTS) -o $@ $(LDLIBS)
|
||||
|
||||
.cc.o:
|
||||
$(CC) $(CFLAGS) $< -o $@
|
||||
|
||||
clean:
|
||||
$(RM) $(OBJECTS) $(EXECUTABLE)
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
#!/bin/bash
|
||||
|
||||
# Please run this under the same directory where the input proto stays. The
|
||||
# output will stay in the same directory. If this is not the behavior you want,
|
||||
# feel free to make your own scripts.
|
||||
locProtocGenGo=$1
|
||||
locGoPlugIn=$2
|
||||
proto=$3
|
||||
protoc --plugin=protoc-gen-go=$locProtocGenGo --go_out=. $proto
|
||||
protoc --plugin=protoc-gen-gogrpc=$locGoPlugIn --gogrpc_out=. $proto
|
||||
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|
@ -0,0 +1,531 @@
|
|||
/*
|
||||
*
|
||||
* Copyright 2014, Google Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are
|
||||
* met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following disclaimer
|
||||
* in the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* * Neither the name of Google Inc. nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
#include "./go_generator.h"
|
||||
|
||||
#include <cctype>
|
||||
|
||||
#include <google/protobuf/io/printer.h>
|
||||
#include <google/protobuf/io/zero_copy_stream_impl_lite.h>
|
||||
#include <google/protobuf/descriptor.pb.h>
|
||||
#include <google/protobuf/descriptor.h>
|
||||
|
||||
using namespace std;
|
||||
|
||||
namespace grpc_go_generator {
|
||||
|
||||
bool NoStreaming(const google::protobuf::MethodDescriptor* method) {
|
||||
return !method->client_streaming() && !method->server_streaming();
|
||||
}
|
||||
|
||||
bool ClientOnlyStreaming(const google::protobuf::MethodDescriptor* method) {
|
||||
return method->client_streaming() && !method->server_streaming();
|
||||
}
|
||||
|
||||
bool ServerOnlyStreaming(const google::protobuf::MethodDescriptor* method) {
|
||||
return !method->client_streaming() && method->server_streaming();
|
||||
}
|
||||
|
||||
bool BidiStreaming(const google::protobuf::MethodDescriptor* method) {
|
||||
return method->client_streaming() && method->server_streaming();
|
||||
}
|
||||
|
||||
bool HasClientOnlyStreaming(const google::protobuf::FileDescriptor* file) {
|
||||
for (int i = 0; i < file->service_count(); i++) {
|
||||
for (int j = 0; j < file->service(i)->method_count(); j++) {
|
||||
if (ClientOnlyStreaming(file->service(i)->method(j))) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
string LowerCaseService(const string& service) {
|
||||
string ret = service;
|
||||
if (!ret.empty() && ret[0] >= 'A' && ret[0] <= 'Z') {
|
||||
ret[0] = ret[0] - 'A' + 'a';
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
void PrintClientMethodDef(google::protobuf::io::Printer* printer,
|
||||
const google::protobuf::MethodDescriptor* method,
|
||||
map<string, string>* vars) {
|
||||
(*vars)["Method"] = method->name();
|
||||
(*vars)["Request"] = method->input_type()->name();
|
||||
(*vars)["Response"] = method->output_type()->name();
|
||||
if (NoStreaming(method)) {
|
||||
printer->Print(*vars,
|
||||
"\t$Method$(ctx context.Context, in *$Request$, opts "
|
||||
"...rpc.CallOption) "
|
||||
"(*$Response$, error)\n");
|
||||
} else if (BidiStreaming(method)) {
|
||||
printer->Print(*vars,
|
||||
"\t$Method$(ctx context.Context, opts ...rpc.CallOption) "
|
||||
"($Service$_$Method$Client, error)\n");
|
||||
} else if (ServerOnlyStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"\t$Method$(ctx context.Context, m *$Request$, opts ...rpc.CallOption) "
|
||||
"($Service$_$Method$Client, error)\n");
|
||||
} else if (ClientOnlyStreaming(method)) {
|
||||
printer->Print(*vars,
|
||||
"\t$Method$(ctx context.Context, opts ...rpc.CallOption) "
|
||||
"($Service$_$Method$Client, error)\n");
|
||||
}
|
||||
}
|
||||
|
||||
void PrintClientMethodImpl(google::protobuf::io::Printer* printer,
|
||||
const google::protobuf::MethodDescriptor* method,
|
||||
map<string, string>* vars) {
|
||||
(*vars)["Method"] = method->name();
|
||||
(*vars)["Request"] = method->input_type()->name();
|
||||
(*vars)["Response"] = method->output_type()->name();
|
||||
|
||||
if (NoStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (c *$ServiceStruct$Client) $Method$(ctx context.Context, "
|
||||
"in *$Request$, opts ...rpc.CallOption) (*$Response$, error) {\n");
|
||||
printer->Print(*vars, "\tout := new($Response$)\n");
|
||||
printer->Print(*vars,
|
||||
"\terr := rpc.Invoke(ctx, \"/$Package$$Service$/$Method$\", "
|
||||
"in, out, c.cc, opts...)\n");
|
||||
printer->Print("\tif err != nil {\n");
|
||||
printer->Print("\t\treturn nil, err\n");
|
||||
printer->Print("\t}\n");
|
||||
printer->Print("\treturn out, nil\n");
|
||||
printer->Print("}\n\n");
|
||||
} else if (BidiStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (c *$ServiceStruct$Client) $Method$(ctx context.Context, opts "
|
||||
"...rpc.CallOption) ($Service$_$Method$Client, error) {\n"
|
||||
"\tstream, err := rpc.NewClientStream(ctx, c.cc, "
|
||||
"\"/$Package$$Service$/$Method$\", opts...)\n"
|
||||
"\tif err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\treturn &$ServiceStruct$$Method$Client{stream}, nil\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $Service$_$Method$Client interface {\n"
|
||||
"\tSend(*$Request$) error\n"
|
||||
"\tRecv() (*$Response$, error)\n"
|
||||
"\trpc.ClientStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $ServiceStruct$$Method$Client struct {\n"
|
||||
"\trpc.ClientStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Client) Send(m *$Request$) error {\n"
|
||||
"\treturn x.ClientStream.SendProto(m)\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Client) Recv() (*$Response$, error) "
|
||||
"{\n"
|
||||
"\tm := new($Response$)\n"
|
||||
"\tif err := x.ClientStream.RecvProto(m); err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\treturn m, nil\n"
|
||||
"}\n\n");
|
||||
} else if (ServerOnlyStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (c *$ServiceStruct$Client) $Method$(ctx context.Context, m "
|
||||
"*$Request$, "
|
||||
"opts ...rpc.CallOption) ($Service$_$Method$Client, error) {\n"
|
||||
"\tstream, err := rpc.NewClientStream(ctx, c.cc, "
|
||||
"\"/$Package$$Service$/$Method$\", opts...)\n"
|
||||
"\tif err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\tx := &$ServiceStruct$$Method$Client{stream}\n"
|
||||
"\tif err := x.ClientStream.SendProto(m); err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\tif err := x.ClientStream.CloseSend(); err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\treturn x, nil\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $Service$_$Method$Client interface {\n"
|
||||
"\tRecv() (*$Response$, error)\n"
|
||||
"\trpc.ClientStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $ServiceStruct$$Method$Client struct {\n"
|
||||
"\trpc.ClientStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Client) Recv() (*$Response$, error) "
|
||||
"{\n"
|
||||
"\tm := new($Response$)\n"
|
||||
"\tif err := x.ClientStream.RecvProto(m); err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\treturn m, nil\n"
|
||||
"}\n\n");
|
||||
} else if (ClientOnlyStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (c *$ServiceStruct$Client) $Method$(ctx context.Context, opts "
|
||||
"...rpc.CallOption) ($Service$_$Method$Client, error) {\n"
|
||||
"\tstream, err := rpc.NewClientStream(ctx, c.cc, "
|
||||
"\"/$Package$$Service$/$Method$\", opts...)\n"
|
||||
"\tif err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\treturn &$ServiceStruct$$Method$Client{stream}, nil\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $Service$_$Method$Client interface {\n"
|
||||
"\tSend(*$Request$) error\n"
|
||||
"\tCloseAndRecv() (*$Response$, error)\n"
|
||||
"\trpc.ClientStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $ServiceStruct$$Method$Client struct {\n"
|
||||
"\trpc.ClientStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Client) Send(m *$Request$) error {\n"
|
||||
"\treturn x.ClientStream.SendProto(m)\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Client) CloseAndRecv() (*$Response$, "
|
||||
"error) {\n"
|
||||
"\tif err := x.ClientStream.CloseSend(); err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\tm := new($Response$)\n"
|
||||
"\tif err := x.ClientStream.RecvProto(m); err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\t// Read EOF.\n"
|
||||
"\tif err := x.ClientStream.RecvProto(m); err == io.EOF {\n"
|
||||
"\t\treturn m, io.EOF\n"
|
||||
"\t}\n"
|
||||
"\t// gRPC protocol violation.\n"
|
||||
"\treturn m, fmt.Errorf(\"Violate gRPC client streaming protocol: no "
|
||||
"EOF after the response.\")\n"
|
||||
"}\n\n");
|
||||
}
|
||||
}
|
||||
|
||||
void PrintClient(google::protobuf::io::Printer* printer,
|
||||
const google::protobuf::ServiceDescriptor* service,
|
||||
map<string, string>* vars) {
|
||||
(*vars)["Service"] = service->name();
|
||||
(*vars)["ServiceStruct"] = LowerCaseService(service->name());
|
||||
printer->Print(*vars, "type $Service$Client interface {\n");
|
||||
for (int i = 0; i < service->method_count(); ++i) {
|
||||
PrintClientMethodDef(printer, service->method(i), vars);
|
||||
}
|
||||
printer->Print("}\n\n");
|
||||
|
||||
printer->Print(*vars,
|
||||
"type $ServiceStruct$Client struct {\n"
|
||||
"\tcc *rpc.ClientConn\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func New$Service$Client(cc *rpc.ClientConn) $Service$Client {\n"
|
||||
"\treturn &$ServiceStruct$Client{cc}\n"
|
||||
"}\n\n");
|
||||
for (int i = 0; i < service->method_count(); ++i) {
|
||||
PrintClientMethodImpl(printer, service->method(i), vars);
|
||||
}
|
||||
}
|
||||
|
||||
void PrintServerMethodDef(google::protobuf::io::Printer* printer,
|
||||
const google::protobuf::MethodDescriptor* method,
|
||||
map<string, string>* vars) {
|
||||
(*vars)["Method"] = method->name();
|
||||
(*vars)["Request"] = method->input_type()->name();
|
||||
(*vars)["Response"] = method->output_type()->name();
|
||||
if (NoStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"\t$Method$(context.Context, *$Request$) (*$Response$, error)\n");
|
||||
} else if (BidiStreaming(method)) {
|
||||
printer->Print(*vars, "\t$Method$($Service$_$Method$Server) error\n");
|
||||
} else if (ServerOnlyStreaming(method)) {
|
||||
printer->Print(*vars,
|
||||
"\t$Method$(*$Request$, $Service$_$Method$Server) error\n");
|
||||
} else if (ClientOnlyStreaming(method)) {
|
||||
printer->Print(*vars, "\t$Method$($Service$_$Method$Server) error\n");
|
||||
}
|
||||
}
|
||||
|
||||
void PrintServerHandler(google::protobuf::io::Printer* printer,
|
||||
const google::protobuf::MethodDescriptor* method,
|
||||
map<string, string>* vars) {
|
||||
(*vars)["Method"] = method->name();
|
||||
(*vars)["Request"] = method->input_type()->name();
|
||||
(*vars)["Response"] = method->output_type()->name();
|
||||
if (NoStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func _$Service$_$Method$_Handler(srv interface{}, ctx context.Context,"
|
||||
" buf []byte) (proto.Message, error) {\n");
|
||||
printer->Print(*vars, "\tin := new($Request$)\n");
|
||||
printer->Print("\tif err := proto.Unmarshal(buf, in); err != nil {\n");
|
||||
printer->Print("\t\treturn nil, err\n");
|
||||
printer->Print("\t}\n");
|
||||
printer->Print(*vars,
|
||||
"\tout, err := srv.($Service$Server).$Method$(ctx, in)\n");
|
||||
printer->Print("\tif err != nil {\n");
|
||||
printer->Print("\t\treturn nil, err\n");
|
||||
printer->Print("\t}\n");
|
||||
printer->Print("\treturn out, nil\n");
|
||||
printer->Print("}\n\n");
|
||||
} else if (BidiStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func _$Service$_$Method$_Handler(srv interface{}, stream rpc.ServerStream) "
|
||||
"error {\n"
|
||||
"\treturn srv.($Service$Server).$Method$(&$ServiceStruct$$Method$Server"
|
||||
"{stream})\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $Service$_$Method$Server interface {\n"
|
||||
"\tSend(*$Response$) error\n"
|
||||
"\tRecv() (*$Request$, error)\n"
|
||||
"\trpc.ServerStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $ServiceStruct$$Method$Server struct {\n"
|
||||
"\trpc.ServerStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Server) Send(m *$Response$) error {\n"
|
||||
"\treturn x.ServerStream.SendProto(m)\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Server) Recv() (*$Request$, error) "
|
||||
"{\n"
|
||||
"\tm := new($Request$)\n"
|
||||
"\tif err := x.ServerStream.RecvProto(m); err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\treturn m, nil\n"
|
||||
"}\n\n");
|
||||
} else if (ServerOnlyStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func _$Service$_$Method$_Handler(srv interface{}, stream rpc.ServerStream) "
|
||||
"error {\n"
|
||||
"\tm := new($Request$)\n"
|
||||
"\tif err := stream.RecvProto(m); err != nil {\n"
|
||||
"\t\treturn err\n"
|
||||
"\t}\n"
|
||||
"\treturn srv.($Service$Server).$Method$(m, "
|
||||
"&$ServiceStruct$$Method$Server{stream})\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $Service$_$Method$Server interface {\n"
|
||||
"\tSend(*$Response$) error\n"
|
||||
"\trpc.ServerStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $ServiceStruct$$Method$Server struct {\n"
|
||||
"\trpc.ServerStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Server) Send(m *$Response$) error {\n"
|
||||
"\treturn x.ServerStream.SendProto(m)\n"
|
||||
"}\n\n");
|
||||
} else if (ClientOnlyStreaming(method)) {
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func _$Service$_$Method$_Handler(srv interface{}, stream rpc.ServerStream) "
|
||||
"error {\n"
|
||||
"\treturn srv.($Service$Server).$Method$(&$ServiceStruct$$Method$Server"
|
||||
"{stream})\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $Service$_$Method$Server interface {\n"
|
||||
"\tSendAndClose(*$Response$) error\n"
|
||||
"\tRecv() (*$Request$, error)\n"
|
||||
"\trpc.ServerStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(*vars,
|
||||
"type $ServiceStruct$$Method$Server struct {\n"
|
||||
"\trpc.ServerStream\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Server) SendAndClose(m *$Response$) "
|
||||
"error {\n"
|
||||
"\tif err := x.ServerStream.SendProto(m); err != nil {\n"
|
||||
"\t\treturn err\n"
|
||||
"\t}\n"
|
||||
"\treturn nil\n"
|
||||
"}\n\n");
|
||||
printer->Print(
|
||||
*vars,
|
||||
"func (x *$ServiceStruct$$Method$Server) Recv() (*$Request$, error) {\n"
|
||||
"\tm := new($Request$)\n"
|
||||
"\tif err := x.ServerStream.RecvProto(m); err != nil {\n"
|
||||
"\t\treturn nil, err\n"
|
||||
"\t}\n"
|
||||
"\treturn m, nil\n"
|
||||
"}\n\n");
|
||||
}
|
||||
}
|
||||
|
||||
void PrintServerMethodDesc(google::protobuf::io::Printer* printer,
|
||||
const google::protobuf::MethodDescriptor* method,
|
||||
map<string, string>* vars) {
|
||||
(*vars)["Method"] = method->name();
|
||||
printer->Print("\t\t{\n");
|
||||
printer->Print(*vars, "\t\t\tMethodName:\t\"$Method$\",\n");
|
||||
printer->Print(*vars, "\t\t\tHandler:\t_$Service$_$Method$_Handler,\n");
|
||||
printer->Print("\t\t},\n");
|
||||
}
|
||||
|
||||
void PrintServerStreamingMethodDesc(
|
||||
google::protobuf::io::Printer* printer,
|
||||
const google::protobuf::MethodDescriptor* method,
|
||||
map<string, string>* vars) {
|
||||
(*vars)["Method"] = method->name();
|
||||
printer->Print("\t\t{\n");
|
||||
printer->Print(*vars, "\t\t\tStreamName:\t\"$Method$\",\n");
|
||||
printer->Print(*vars, "\t\t\tHandler:\t_$Service$_$Method$_Handler,\n");
|
||||
printer->Print("\t\t},\n");
|
||||
}
|
||||
|
||||
void PrintServer(google::protobuf::io::Printer* printer,
|
||||
const google::protobuf::ServiceDescriptor* service,
|
||||
map<string, string>* vars) {
|
||||
(*vars)["Service"] = service->name();
|
||||
printer->Print(*vars, "type $Service$Server interface {\n");
|
||||
for (int i = 0; i < service->method_count(); ++i) {
|
||||
PrintServerMethodDef(printer, service->method(i), vars);
|
||||
}
|
||||
printer->Print("}\n\n");
|
||||
|
||||
printer->Print(*vars,
|
||||
"func RegisterService(s *rpc.Server, srv $Service$Server) {\n"
|
||||
"\ts.RegisterService(&_$Service$_serviceDesc, srv)\n"
|
||||
"}\n\n");
|
||||
|
||||
for (int i = 0; i < service->method_count(); ++i) {
|
||||
PrintServerHandler(printer, service->method(i), vars);
|
||||
}
|
||||
|
||||
printer->Print(*vars,
|
||||
"var _$Service$_serviceDesc = rpc.ServiceDesc{\n"
|
||||
"\tServiceName: \"$Package$$Service$\",\n"
|
||||
"\tHandlerType: (*$Service$Server)(nil),\n"
|
||||
"\tMethods: []rpc.MethodDesc{\n");
|
||||
for (int i = 0; i < service->method_count(); ++i) {
|
||||
if (NoStreaming(service->method(i))) {
|
||||
PrintServerMethodDesc(printer, service->method(i), vars);
|
||||
}
|
||||
}
|
||||
printer->Print("\t},\n");
|
||||
|
||||
printer->Print("\tStreams: []rpc.StreamDesc{\n");
|
||||
for (int i = 0; i < service->method_count(); ++i) {
|
||||
if (!NoStreaming(service->method(i))) {
|
||||
PrintServerStreamingMethodDesc(printer, service->method(i), vars);
|
||||
}
|
||||
}
|
||||
printer->Print(
|
||||
"\t},\n"
|
||||
"}\n\n");
|
||||
}
|
||||
|
||||
std::string BadToUnderscore(std::string str) {
|
||||
for (unsigned i = 0; i < str.size(); ++i) {
|
||||
if (!std::isalnum(str[i])) {
|
||||
str[i] = '_';
|
||||
}
|
||||
}
|
||||
return str;
|
||||
}
|
||||
|
||||
string GetServices(const google::protobuf::FileDescriptor* file) {
|
||||
string output;
|
||||
google::protobuf::io::StringOutputStream output_stream(&output);
|
||||
google::protobuf::io::Printer printer(&output_stream, '$');
|
||||
map<string, string> vars;
|
||||
|
||||
string package_name = !file->options().go_package().empty()
|
||||
? file->options().go_package()
|
||||
: file->package();
|
||||
vars["PackageName"] = BadToUnderscore(package_name);
|
||||
printer.Print(vars, "package $PackageName$\n\n");
|
||||
printer.Print("import (\n");
|
||||
if (HasClientOnlyStreaming(file)) {
|
||||
printer.Print(
|
||||
"\t\"fmt\"\n"
|
||||
"\t\"io\"\n");
|
||||
}
|
||||
printer.Print(
|
||||
"\t\"github.com/google/grpc-go\"\n"
|
||||
"\tcontext \"golang.org/x/net/context\"\n"
|
||||
"\tproto \"github.com/golang/protobuf/proto\"\n"
|
||||
")\n\n");
|
||||
|
||||
// $Package$ is used to fully qualify method names.
|
||||
vars["Package"] = file->package();
|
||||
if (!file->package().empty()) {
|
||||
vars["Package"].append(".");
|
||||
}
|
||||
|
||||
for (int i = 0; i < file->service_count(); ++i) {
|
||||
PrintClient(&printer, file->service(0), &vars);
|
||||
printer.Print("\n");
|
||||
PrintServer(&printer, file->service(0), &vars);
|
||||
printer.Print("\n");
|
||||
}
|
||||
return output;
|
||||
}
|
||||
|
||||
} // namespace grpc_go_generator
|
||||
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
/*
|
||||
*
|
||||
* Copyright 2014, Google Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are
|
||||
* met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following disclaimer
|
||||
* in the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* * Neither the name of Google Inc. nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef NET_GRPC_COMPILER_GO_GENERATOR_H_
|
||||
#define NET_GRPC_COMPILER_GO_GENERATOR_H_
|
||||
|
||||
#include <string>
|
||||
|
||||
namespace google {
|
||||
namespace protobuf {
|
||||
class FileDescriptor;
|
||||
} // namespace protobuf
|
||||
} // namespace google
|
||||
|
||||
namespace grpc_go_generator {
|
||||
|
||||
std::string GetServices(const google::protobuf::FileDescriptor* file);
|
||||
|
||||
} // namespace grpc_go_generator
|
||||
|
||||
#endif // NET_GRPC_COMPILER_GO_GENERATOR_H_
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
/*
|
||||
*
|
||||
* Copyright 2014, Google Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are
|
||||
* met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following disclaimer
|
||||
* in the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* * Neither the name of Google Inc. nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
// Generates go gRPC service interface out of Protobuf IDL.
|
||||
//
|
||||
// This is a Proto2 compiler plugin. See net/proto2/compiler/proto/plugin.proto
|
||||
// and net/proto2/compiler/public/plugin.h for more information on plugins.
|
||||
|
||||
#include <fstream>
|
||||
#include <memory>
|
||||
#include <string>
|
||||
|
||||
#include "./go_generator.h"
|
||||
#include <google/protobuf/compiler/code_generator.h>
|
||||
#include <google/protobuf/compiler/plugin.h>
|
||||
#include <google/protobuf/io/coded_stream.h>
|
||||
#include <google/protobuf/io/zero_copy_stream.h>
|
||||
#include <google/protobuf/descriptor.h>
|
||||
|
||||
using namespace std;
|
||||
|
||||
class GoGrpcGenerator : public google::protobuf::compiler::CodeGenerator {
|
||||
public:
|
||||
GoGrpcGenerator() {}
|
||||
virtual ~GoGrpcGenerator() {}
|
||||
|
||||
virtual bool Generate(const google::protobuf::FileDescriptor* file,
|
||||
const string& parameter,
|
||||
google::protobuf::compiler::GeneratorContext* context,
|
||||
string* error) const {
|
||||
// Get output file name.
|
||||
string file_name;
|
||||
if (file->name().size() > 6 &&
|
||||
file->name().find_last_of(".proto") == file->name().size() - 1) {
|
||||
file_name =
|
||||
file->name().substr(0, file->name().size() - 6) + "_grpc.pb.go";
|
||||
} else {
|
||||
*error = "Invalid proto file name. Proto file must end with .proto";
|
||||
return false;
|
||||
}
|
||||
|
||||
unique_ptr<google::protobuf::io::ZeroCopyOutputStream> output(
|
||||
context->Open(file_name));
|
||||
google::protobuf::io::CodedOutputStream coded_out(output.get());
|
||||
string code = grpc_go_generator::GetServices(file);
|
||||
coded_out.WriteRaw(code.data(), code.size());
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
int main(int argc, char* argv[]) {
|
||||
GoGrpcGenerator generator;
|
||||
return google::protobuf::compiler::PluginMain(argc, argv, &generator);
|
||||
}
|
||||
Загрузка…
Ссылка в новой задаче