5 // This implements a Clang tool to generate compilation information that is
6 // sufficient to recompile the code with clang. For each compilation unit, all
20 #include "clang/Basic/Diagnostic.h"
21 #include "clang/Basic/FileManager.h"
22 #include "clang/Basic/SourceManager.h"
23 #include "clang/Frontend/CompilerInstance.h"
24 #include "clang/Frontend/FrontendActions.h"
25 #include "clang/Lex/HeaderSearchOptions.h"
26 #include "clang/Lex/PPCallbacks.h"
27 #include "clang/Lex/Preprocessor.h"
28 #include "clang/Tooling/CommonOptionsParser.h"
29 #include "clang/Tooling/CompilationDatabase.h"
30 #include "clang/Tooling/Refactoring.h"
31 #include "clang/Tooling/Tooling.h"
37 using clang::HeaderSearchOptions;
38 using clang::tooling::CommonOptionsParser;
48 class IncludeFinderPPCallbacks : public clang::PPCallbacks {
50   IncludeFinderPPCallbacks(clang::SourceManager* source_manager,
54   void FileChanged(clang::SourceLocation /*loc*/,
55                    clang::PPCallbacks::FileChangeReason reason,
56                    clang::SrcMgr::CharacteristicKind /*file_type*/,
57                    clang::FileID /*prev_fid*/) override;
59   void InclusionDirective(clang::SourceLocation hash_loc,
60                           const clang::Token& include_tok,
63                           clang::CharSourceRange range,
64                           const clang::FileEntry* file,
67                           const clang::Module* imported,
68                           clang::SrcMgr::CharacteristicKind /*file_type*/
76   clang::SourceManager* const source_manager_;
88     clang::SourceManager* source_manager,  in IncludeFinderPPCallbacks()
105       case clang::frontend::System:  in IncludeFinderPPCallbacks()
106       case clang::frontend::ExternCSystem:  in IncludeFinderPPCallbacks()
107       case clang::frontend::CSystem:  in IncludeFinderPPCallbacks()
108       case clang::frontend::CXXSystem:  in IncludeFinderPPCallbacks()
109       case clang::frontend::ObjCSystem:  in IncludeFinderPPCallbacks()
110       case clang::frontend::ObjCXXSystem:  in IncludeFinderPPCallbacks()
111       case clang::frontend::After:  in IncludeFinderPPCallbacks()
121     clang::SourceLocation /*loc*/,  in FileChanged()
122     clang::PPCallbacks::FileChangeReason reason,  in FileChanged()
123     clang::SrcMgr::CharacteristicKind /*file_type*/,  in FileChanged()
124     clang::FileID /*prev_fid*/) {  in FileChanged()
125   if (reason == clang::PPCallbacks::EnterFile) {  in FileChanged()
144     clang::SourceLocation hash_loc,  in InclusionDirective()
145     const clang::Token& include_tok,  in InclusionDirective()
148     clang::CharSourceRange range,  in InclusionDirective()
149     const clang::FileEntry* file,  in InclusionDirective()
152     const clang::Module* imported,  in InclusionDirective()
153     clang::SrcMgr::CharacteristicKind /*file_type*/  in InclusionDirective()
159   const clang::DirectoryEntry* const search_path_entry =  in InclusionDirective()
161   const clang::DirectoryEntry* const current_file_parent_entry =  in InclusionDirective()
208   const clang::FileEntry* main_file =  in EndOfMainFile()
220 class CompilationIndexerAction : public clang::PreprocessorFrontendAction {
232   // Set up the state extracted during the compilation, and run Clang over the
235   // Maps file names to their contents as read by Clang's source manager.
240   vector<clang::FrontendInputFile> inputs =  in ExecuteAction()
249   clang::Preprocessor& preprocessor = getCompilerInstance().getPreprocessor();  in Preprocess()
258   clang::Token token;  in Preprocess()
261   } while (token.isNot(clang::tok::eof));  in Preprocess()
277   std::unique_ptr<clang::tooling::FrontendActionFactory> frontend_factory =  in main()
278       clang::tooling::newFrontendActionFactory<CompilationIndexerAction>();  in main()
279   clang::tooling::ClangTool tool(options.getCompilations(),  in main()