1 //===- DependencyScanningTool.h - clang-scan-deps service -----------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_TOOL_H 10 #define LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_TOOL_H 11 12 #include "clang/Tooling/DependencyScanning/DependencyScanningService.h" 13 #include "clang/Tooling/DependencyScanning/DependencyScanningWorker.h" 14 #include "clang/Tooling/JSONCompilationDatabase.h" 15 #include <string> 16 17 namespace clang{ 18 namespace tooling{ 19 namespace dependencies{ 20 21 /// The high-level implementation of the dependency discovery tool that runs on 22 /// an individual worker thread. 23 class DependencyScanningTool { 24 public: 25 /// Construct a dependency scanning tool. 26 DependencyScanningTool(DependencyScanningService &Service); 27 28 /// Print out the dependency information into a string using the dependency 29 /// file format that is specified in the options (-MD is the default) and 30 /// return it. 31 /// 32 /// \returns A \c StringError with the diagnostic output if clang errors 33 /// occurred, dependency file contents otherwise. 34 llvm::Expected<std::string> 35 getDependencyFile(const tooling::CompilationDatabase &Compilations, 36 StringRef CWD); 37 38 private: 39 const ScanningOutputFormat Format; 40 DependencyScanningWorker Worker; 41 }; 42 43 } // end namespace dependencies 44 } // end namespace tooling 45 } // end namespace clang 46 47 #endif // LLVM_CLANG_TOOLING_DEPENDENCY_SCANNING_TOOL_H 48