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c0c9d1dbf9
-- fd2e99fa87c34f2fb1a20052c030ad7a4139b4e1 by Christian Blichmann <mail@blichmann.eu>: Support LLVM >= 7.0.1 in Clang based header generator This change glosses over small API changes introduced since LLVM/Clang 7.0.1, which ships with Debian Stable "Buster". Ubuntu 18.04 LTS "Bionic" also shipped this (and subsequently updated to version 9). Hence, compiling the generator should now work on all reasonable Debian based distributions. COPYBARA_INTEGRATE_REVIEW=https://github.com/google/sandboxed-api/pull/44 from cblichmann:20200609-llvm-version-compat fd2e99fa87c34f2fb1a20052c030ad7a4139b4e1 PiperOrigin-RevId: 315637014 Change-Id: I6585041d8bebade15e44c057b1a69287bbc0e733
131 lines
3.9 KiB
C++
131 lines
3.9 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SANDBOXED_API_TOOLS_CLANG_GENERATOR_GENERATOR_H_
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#define SANDBOXED_API_TOOLS_CLANG_GENERATOR_GENERATOR_H_
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#include <string>
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#include "absl/container/flat_hash_set.h"
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#include "absl/memory/memory.h"
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#include "absl/status/status.h"
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#include "clang/AST/ASTConsumer.h"
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#include "clang/AST/RecursiveASTVisitor.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/FrontendAction.h"
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#include "clang/Tooling/Tooling.h"
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#include "sandboxed_api/tools/clang_generator/types.h"
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#include "sandboxed_api/util/statusor.h"
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namespace sapi {
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struct GeneratorOptions {
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template <typename ContainerT>
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GeneratorOptions& set_function_names(const ContainerT& value) {
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function_names.clear();
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function_names.insert(std::begin(value), std::end(value));
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return *this;
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}
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bool has_namespace() const { return !namespace_name.empty(); }
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absl::flat_hash_set<std::string> function_names;
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// Output options
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std::string work_dir;
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std::string name; // Name of the Sandboxed API
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std::string namespace_name; // Namespace to wrap the SAPI in
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std::string out_file; // Output path of the generated header
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std::string embed_dir; // Directory with embedded includes
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std::string embed_name; // Identifier of the embed object
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};
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class GeneratorASTVisitor
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: public clang::RecursiveASTVisitor<GeneratorASTVisitor> {
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public:
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bool VisitFunctionDecl(clang::FunctionDecl* decl);
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private:
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friend class GeneratorASTConsumer;
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const GeneratorOptions* options_ = nullptr;
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std::vector<clang::FunctionDecl*> functions_;
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QualTypeSet types_;
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};
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namespace internal {
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sapi::StatusOr<std::string> ReformatGoogleStyle(const std::string& filename,
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const std::string& code);
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} // namespace internal
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class GeneratorASTConsumer : public clang::ASTConsumer {
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public:
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GeneratorASTConsumer(std::string in_file, const GeneratorOptions* options)
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: in_file_(std::move(in_file)), options_(options) {
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visitor_.options_ = options_;
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}
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private:
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void HandleTranslationUnit(clang::ASTContext& context) override;
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absl::Status GenerateAndSaveHeader();
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std::string in_file_;
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const GeneratorOptions* options_;
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GeneratorASTVisitor visitor_;
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};
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class GeneratorAction : public clang::ASTFrontendAction {
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public:
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explicit GeneratorAction(const GeneratorOptions* options)
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: options_(options) {}
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private:
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std::unique_ptr<clang::ASTConsumer> CreateASTConsumer(
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clang::CompilerInstance&, llvm::StringRef in_file) override {
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return absl::make_unique<GeneratorASTConsumer>(std::string(in_file),
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options_);
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}
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bool hasCodeCompletionSupport() const override { return false; }
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const GeneratorOptions* options_;
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};
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class GeneratorFactory : public clang::tooling::FrontendActionFactory {
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public:
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explicit GeneratorFactory(GeneratorOptions options = {})
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: options_(std::move(options)) {}
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private:
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#if LLVM_VERSION_MAJOR >= 10
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std::unique_ptr<clang::FrontendAction> create() override {
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return absl::make_unique<GeneratorAction>(&options_);
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}
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#else
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clang::FrontendAction* create() override {
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return new GeneratorAction(&options_);
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}
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#endif
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GeneratorOptions options_;
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};
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} // namespace sapi
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#endif // SANDBOXED_API_TOOLS_CLANG_GENERATOR_GENERATOR_H_
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