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/*
*
* Copyright 2015 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.
*
*/
#ifndef GRPC_INTERNAL_COMPILER_PROTOBUF_PLUGIN_H
#define GRPC_INTERNAL_COMPILER_PROTOBUF_PLUGIN_H
#include <vector>
#include "src/compiler/config.h"
#include "src/compiler/cpp_generator_helpers.h"
#include "src/compiler/python_generator_helpers.h"
#include "src/compiler/python_private_generator.h"
#include "src/compiler/schema_interface.h"
// Get leading or trailing comments in a string.
template <typename DescriptorType>
inline TString GetCommentsHelper(const DescriptorType* desc, bool leading,
const TString& prefix) {
return grpc_generator::GetPrefixedComments(desc, leading, prefix);
}
class ProtoBufMethod : public grpc_generator::Method {
public:
ProtoBufMethod(const grpc::protobuf::MethodDescriptor* method)
: method_(method) {}
TString name() const { return method_->name(); }
TString input_type_name() const {
return grpc_cpp_generator::ClassName(method_->input_type(), true);
}
TString output_type_name() const {
return grpc_cpp_generator::ClassName(method_->output_type(), true);
}
TString get_input_type_name() const {
return method_->input_type()->file()->name();
}
TString get_output_type_name() const {
return method_->output_type()->file()->name();
}
// TODO(https://github.com/grpc/grpc/issues/18800): Clean this up.
bool get_module_and_message_path_input(
TString* str, TString generator_file_name,
bool generate_in_pb2_grpc, TString import_prefix,
const std::vector<TString>& prefixes_to_filter) const final {
return grpc_python_generator::GetModuleAndMessagePath(
method_->input_type(), str, generator_file_name, generate_in_pb2_grpc,
import_prefix, prefixes_to_filter);
}
bool get_module_and_message_path_output(
TString* str, TString generator_file_name,
bool generate_in_pb2_grpc, TString import_prefix,
const std::vector<TString>& prefixes_to_filter) const final {
return grpc_python_generator::GetModuleAndMessagePath(
method_->output_type(), str, generator_file_name, generate_in_pb2_grpc,
import_prefix, prefixes_to_filter);
}
bool NoStreaming() const {
return !method_->client_streaming() && !method_->server_streaming();
}
bool ClientStreaming() const { return method_->client_streaming(); }
bool ServerStreaming() const { return method_->server_streaming(); }
bool BidiStreaming() const {
return method_->client_streaming() && method_->server_streaming();
}
TString GetLeadingComments(const TString prefix) const {
return GetCommentsHelper(method_, true, prefix);
}
TString GetTrailingComments(const TString prefix) const {
return GetCommentsHelper(method_, false, prefix);
}
vector<TString> GetAllComments() const {
return grpc_python_generator::get_all_comments(method_);
}
private:
const grpc::protobuf::MethodDescriptor* method_;
};
class ProtoBufService : public grpc_generator::Service {
public:
ProtoBufService(const grpc::protobuf::ServiceDescriptor* service)
: service_(service) {}
TString name() const { return service_->name(); }
int method_count() const { return service_->method_count(); }
std::unique_ptr<const grpc_generator::Method> method(int i) const {
return std::unique_ptr<const grpc_generator::Method>(
new ProtoBufMethod(service_->method(i)));
}
TString GetLeadingComments(const TString prefix) const {
return GetCommentsHelper(service_, true, prefix);
}
TString GetTrailingComments(const TString prefix) const {
return GetCommentsHelper(service_, false, prefix);
}
vector<TString> GetAllComments() const {
return grpc_python_generator::get_all_comments(service_);
}
private:
const grpc::protobuf::ServiceDescriptor* service_;
};
class ProtoBufPrinter : public grpc_generator::Printer {
public:
ProtoBufPrinter(TString* str)
: output_stream_(str), printer_(&output_stream_, '$') {}
void Print(const std::map<TString, TString>& vars,
const char* string_template) {
printer_.Print(vars, string_template);
}
void Print(const char* string) { printer_.Print(string); }
void PrintRaw(const char* string) { printer_.PrintRaw(string); }
void Indent() { printer_.Indent(); }
void Outdent() { printer_.Outdent(); }
private:
grpc::protobuf::io::StringOutputStream output_stream_;
grpc::protobuf::io::Printer printer_;
};
class ProtoBufFile : public grpc_generator::File {
public:
ProtoBufFile(const grpc::protobuf::FileDescriptor* file) : file_(file) {}
TString filename() const { return file_->name(); }
TString filename_without_ext() const {
return grpc_generator::StripProto(filename());
}
TString package() const { return file_->package(); }
std::vector<TString> package_parts() const {
return grpc_generator::tokenize(package(), ".");
}
TString additional_headers() const { return ""; }
int service_count() const { return file_->service_count(); }
std::unique_ptr<const grpc_generator::Service> service(int i) const {
return std::unique_ptr<const grpc_generator::Service>(
new ProtoBufService(file_->service(i)));
}
std::unique_ptr<grpc_generator::Printer> CreatePrinter(
TString* str) const {
return std::unique_ptr<grpc_generator::Printer>(new ProtoBufPrinter(str));
}
TString GetLeadingComments(const TString prefix) const {
return GetCommentsHelper(file_, true, prefix);
}
TString GetTrailingComments(const TString prefix) const {
return GetCommentsHelper(file_, false, prefix);
}
vector<TString> GetAllComments() const {
return grpc_python_generator::get_all_comments(file_);
}
vector<TString> GetImportNames() const {
vector<TString> proto_names;
for (int i = 0; i < file_->dependency_count(); ++i) {
const auto& dep = *file_->dependency(i);
proto_names.push_back(dep.name());
}
return proto_names;
}
private:
const grpc::protobuf::FileDescriptor* file_;
};
#endif // GRPC_INTERNAL_COMPILER_PROTOBUF_PLUGIN_H
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