path: root/include/clang/Tooling/DependencyScanning/DependencyScanningService.h
blob: fd8ed80b143ca8c58a5db4e2ba46e13f544ff7db (plain) (tree)

//===- DependencyScanningService.h - clang-scan-deps service ===-*- 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


#include "clang/Tooling/DependencyScanning/DependencyScanningFilesystem.h"

namespace clang {
namespace tooling {
namespace dependencies {

/// The mode in which the dependency scanner will operate to find the
/// dependencies.
enum class ScanningMode {
  /// This mode is used to compute the dependencies by running the preprocessor
  /// over
  /// the unmodified source files.

  /// This mode is used to compute the dependencies by running the preprocessor
  /// over
  /// the source files that have been minimized to contents that might affect
  /// the dependencies.

/// The dependency scanning service contains the shared state that is used by
/// the invidual dependency scanning workers.
class DependencyScanningService {
  DependencyScanningService(ScanningMode Mode, bool ReuseFileManager = true,
                            bool SkipExcludedPPRanges = true);

  ScanningMode getMode() const { return Mode; }

  bool canReuseFileManager() const { return ReuseFileManager; }

  bool canSkipExcludedPPRanges() const { return SkipExcludedPPRanges; }

  DependencyScanningFilesystemSharedCache &getSharedCache() {
    return SharedCache;

  const ScanningMode Mode;
  const bool ReuseFileManager;
  /// Set to true to use the preprocessor optimization that skips excluded PP
  /// ranges by bumping the buffer pointer in the lexer instead of lexing the
  /// tokens in the range until reaching the corresponding directive.
  const bool SkipExcludedPPRanges;
  /// The global file system cache.
  DependencyScanningFilesystemSharedCache SharedCache;

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