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);
}
