sandboxed-api/sandboxed_api/tools/clang_generator/emitter.h
Christian Blichmann 35f9268e23 Restructure the Clang based header generator
- Support multiple input files
- Better testability
- Support for the `--sapi_isystem` argument, same as the Python generator

PiperOrigin-RevId: 333686891
Change-Id: I3e618165c1bd58bb755e1193617fb0737c29ee77
2020-09-25 01:14:18 -07:00

69 lines
2.2 KiB
C++

// Copyright 2020 Google LLC
//
// 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 SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_
#define SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_
#include <string>
#include <vector>
#include "absl/container/flat_hash_map.h"
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "absl/strings/string_view.h"
#include "clang/AST/Decl.h"
#include "clang/AST/Type.h"
#include "sandboxed_api/tools/clang_generator/types.h"
namespace sapi {
namespace internal {
absl::StatusOr<std::string> ReformatGoogleStyle(const std::string& filename,
const std::string& code);
} // namespace internal
class GeneratorOptions;
class Emitter {
public:
using RenderedTypesMap =
absl::flat_hash_map<std::string, std::vector<std::string>>;
void CollectType(clang::QualType qual);
void CollectFunction(clang::FunctionDecl* decl);
// Outputs a formatted header for a list of functions and their related types.
absl::StatusOr<std::string> EmitHeader(const GeneratorOptions& options);
protected:
// Maps namespace to a list of spellings for types
RenderedTypesMap rendered_types_;
// Functions for sandboxed API, including their bodies
std::vector<std::string> functions_;
};
// Constructs an include guard name for the given filename. The name is of the
// same form as the include guards in this project.
// For example,
// sandboxed_api/examples/zlib/zlib-sapi.sapi.h
// will be mapped to
// SANDBOXED_API_EXAMPLES_ZLIB_ZLIB_SAPI_SAPI_H_
std::string GetIncludeGuard(absl::string_view filename);
} // namespace sapi
#endif // SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_