path: root/include/clang/Tooling/DependencyScanning/DependencyScanningTool.h
blob: 0c9efccb1d8bd9f7a2a644164fb84d47151a7e08 (plain) (tree)

//===- DependencyScanningTool.h - clang-scan-deps service ------------===//
// 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


#include "clang/Tooling/DependencyScanning/DependencyScanningService.h"
#include "clang/Tooling/DependencyScanning/DependencyScanningWorker.h"
#include "clang/Tooling/JSONCompilationDatabase.h"
#include <string>

namespace clang{
namespace tooling{
namespace dependencies{

/// The high-level implementation of the dependency discovery tool that runs on
/// an individual worker thread.
class DependencyScanningTool {
  /// Construct a dependency scanning tool.
  /// \param Compilations     The reference to the compilation database that's
  /// used by the clang tool.
  DependencyScanningTool(DependencyScanningService &Service, const clang::tooling::CompilationDatabase &Compilations);

  /// 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 CWD);

  DependencyScanningWorker Worker;
  const tooling::CompilationDatabase &Compilations;

} // end namespace dependencies
} // end namespace tooling
} // end namespace clang