118   data_ += std::to_string(value);  in SetInteger()
123   data_ += DoubleToCString(value);  in SetDouble()
128   data_ += value ? "true" : "false";  in SetBoolean()
133   data_ += "null";  in SetNull()
138   data_ += EscapeString(value);  in SetString()
143   data_ += '{';  in BeginDictionary()
149   data_ += '[';  in BeginArray()
155   data_ += std::to_string(value);  in AppendInteger()
160   data_ += DoubleToCString(value);  in AppendDouble()
165   data_ += value ? "true" : "false";  in AppendBoolean()
170   data_ += "null";  in AppendNull()
175   data_ += EscapeString(value);  in AppendString()
180   data_ += '{';  in BeginDictionary()
186   data_ += '[';  in BeginArray()
191   data_ += '}';  in EndDictionary()
196   data_ += ']';  in EndArray()
204     data_ += ',';  in WriteComma()
210   data_ += '"';  in WriteName()
211   data_ += name;  in WriteName()
212   data_ += "\":";  in WriteName()
217   *out += data_;  in AppendAsTraceFormat()