buggy_comment_printer.cc

// PrintCommentsPassedBy prints comments if they are before the given ParseLocationPoint
// and returns if comments are emitted.
bool Unparser::PrintCommentsPassedBy(const ParseLocationPoint point, void* data) {
  if (data == nullptr) {
    return false;
  }
  auto parse_tokens = static_cast<std::deque<std::pair<std::string, ParseLocationPoint>>*>(data);
  if (parse_tokens == nullptr) {
    return false;
  }
  bool emitted = false;
  const int size = parse_tokens->size();
  for (int i = 0; i < size; i++) {
    if (parse_tokens->front().second < point) {
      absl::string_view comment_string(parse_tokens->front().first);
      absl::ConsumeSuffix(&comment_string, "\r\n");
      absl::ConsumeSuffix(&comment_string, "\r");
      absl::ConsumeSuffix(&comment_string, "\n");
      parse_tokens->pop_front();

      // println if multi-line comments
      if (!emitted && i + 1 < size) {
        if (parse_tokens->front().second < point) {
          FlushLine();
        }
      }

      println(std::string(comment_string));
      emitted = true;
    } else {
      break;
    }
  }
  return emitted;
}