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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_SCHEMA_INTERFACE_H
#define GRPC_INTERNAL_COMPILER_SCHEMA_INTERFACE_H
#include <memory>
#include <util/generic/string.h>
#include <vector>
#include "src/compiler/config.h"
#ifdef GRPC_CUSTOM_STRING
#warning GRPC_CUSTOM_STRING is no longer supported. Please use TString.
#endif
namespace grpc {
// Using grpc::string and grpc::to_string is discouraged in favor of
// TString and ToString. This is only for legacy code using
// them explictly.
typedef TString string; // deprecated
} // namespace grpc
namespace grpc_generator {
// A common interface for objects having comments in the source.
// Return formatted comments to be inserted in generated code.
struct CommentHolder {
virtual ~CommentHolder() {}
virtual TString GetLeadingComments(const TString prefix) const = 0;
virtual TString GetTrailingComments(const TString prefix) const = 0;
virtual std::vector<TString> GetAllComments() const = 0;
};
// An abstract interface representing a method.
struct Method : public CommentHolder {
virtual ~Method() {}
virtual TString name() const = 0;
virtual TString input_type_name() const = 0;
virtual TString output_type_name() const = 0;
virtual 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 = 0;
virtual 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 = 0;
virtual TString get_input_type_name() const = 0;
virtual TString get_output_type_name() const = 0;
virtual bool NoStreaming() const = 0;
virtual bool ClientStreaming() const = 0;
virtual bool ServerStreaming() const = 0;
virtual bool BidiStreaming() const = 0;
};
// An abstract interface representing a service.
struct Service : public CommentHolder {
virtual ~Service() {}
virtual TString name() const = 0;
virtual int method_count() const = 0;
virtual std::unique_ptr<const Method> method(int i) const = 0;
};
struct Printer {
virtual ~Printer() {}
virtual void Print(const std::map<TString, TString>& vars,
const char* template_string) = 0;
virtual void Print(const char* string) = 0;
virtual void PrintRaw(const char* string) = 0;
virtual void Indent() = 0;
virtual void Outdent() = 0;
};
// An interface that allows the source generated to be output using various
// libraries/idls/serializers.
struct File : public CommentHolder {
virtual ~File() {}
virtual TString filename() const = 0;
virtual TString filename_without_ext() const = 0;
virtual TString package() const = 0;
virtual std::vector<TString> package_parts() const = 0;
virtual TString additional_headers() const = 0;
virtual std::vector<TString> GetImportNames() const { return {}; }
virtual int service_count() const = 0;
virtual std::unique_ptr<const Service> service(int i) const = 0;
virtual std::unique_ptr<Printer> CreatePrinter(TString* str) const = 0;
};
} // namespace grpc_generator
#endif // GRPC_INTERNAL_COMPILER_SCHEMA_INTERFACE_H
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