242       : buffer_(buffer, buffer_size), position_(0) { }  in StringBuilder()
251     return position_;  in position()
255   void Reset() { position_ = 0; }  in Reset()
262     ASSERT(!is_finalized() && position_ < buffer_.length());  in AddCharacter()
263     buffer_[position_++] = c;  in AddCharacter()
275     ASSERT(!is_finalized() && position_ + n < buffer_.length());  in AddSubstring()
277     memmove(&buffer_[position_], s, n * kCharSize);  in AddSubstring()
278     position_ += n;  in AddSubstring()
292     ASSERT(!is_finalized() && position_ < buffer_.length());  in Finalize()
293     buffer_[position_] = '\0';  in Finalize()
296     ASSERT(strlen(buffer_.start()) == static_cast<size_t>(position_));  in Finalize()
297     position_ = -1;  in Finalize()
304   int position_;  variable
306   bool is_finalized() const { return position_ < 0; }  in is_finalized()