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//===- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_SERVICE_H
#define LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_SERVICE_H
#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.
CanonicalPreprocessing,
/// 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.
MinimizedSourcePreprocessing
};
/// The dependency scanning service contains the shared state that is used by
/// the invidual dependency scanning workers.
class DependencyScanningService {
public:
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;
}
private:
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
#endif // LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_SERVICE_H
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