void EditTracker::Add(const clang::SourceManager& source_manager, clang::SourceLocation location, llvm::StringRef original_text, llvm::StringRef new_text) { llvm::StringRef filename; for (int i = 0; i < 10; i++) { filename = source_manager.getFilename(location); if (!filename.empty() || !location.isMacroID()) break; // Otherwise, no filename and the SourceLocation is a macro ID. Look one // level up the stack... location = source_manager.getImmediateMacroCallerLoc(location); } assert(!filename.empty() && "Can't track edit with no filename!"); auto result = tracked_edits_.try_emplace(original_text); if (result.second) { result.first->getValue().new_text = new_text; } result.first->getValue().filenames.try_emplace(filename); }