| //===- DependencyScanningWorker.h - clang-scan-deps worker ===---*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_WORKER_H |
| #define LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_WORKER_H |
| |
| #include "clang/Basic/DiagnosticOptions.h" |
| #include "clang/Basic/LLVM.h" |
| #include "clang/Frontend/PCHContainerOperations.h" |
| #include "clang/Tooling/CompilationDatabase.h" |
| #include "llvm/Support/Error.h" |
| #include "llvm/Support/FileSystem.h" |
| #include <string> |
| |
| namespace clang { |
| namespace tooling { |
| namespace dependencies { |
| |
| /// An individual dependency scanning worker that is able to run on its own |
| /// thread. |
| /// |
| /// The worker computes the dependencies for the input files by preprocessing |
| /// sources either using a fast mode where the source files are minimized, or |
| /// using the regular processing run. |
| class DependencyScanningWorker { |
| public: |
| DependencyScanningWorker(); |
| |
| /// Print out the dependency information into a string using the dependency |
| /// file format that is specified in the options (-MD is the default) and |
| /// return it. |
| /// |
| /// \returns A \c StringError with the diagnostic output if clang errors |
| /// occurred, dependency file contents otherwise. |
| llvm::Expected<std::string> getDependencyFile(const std::string &Input, |
| StringRef WorkingDirectory, |
| const CompilationDatabase &CDB); |
| |
| private: |
| IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts; |
| std::shared_ptr<PCHContainerOperations> PCHContainerOps; |
| |
| /// The file system that is used by each worker when scanning for |
| /// dependencies. This filesystem persists accross multiple compiler |
| /// invocations. |
| llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> WorkerFS; |
| }; |
| |
| } // end namespace dependencies |
| } // end namespace tooling |
| } // end namespace clang |
| |
| #endif // LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_WORKER_H |