29     std::string data;  in BuildMethodTrace()  local
30     data.append("    at ");  in BuildMethodTrace()
35     data += name;  in BuildMethodTrace()
36     data.append(" (");  in BuildMethodTrace()
42         data.push_back('?');  in BuildMethodTrace()
44         data += sourceFile;  in BuildMethodTrace()
46     data.push_back(':');  in BuildMethodTrace()
48     auto callbackLineFunc = [&data](int32_t line) -> bool {  in BuildMethodTrace()
49         data += std::to_string(line + 1);  in BuildMethodTrace()
50         data.push_back(':');  in BuildMethodTrace()
53     auto callbackColumnFunc = [&data](int32_t column) -> bool {  in BuildMethodTrace()
54         data += std::to_string(column + 1);  in BuildMethodTrace()
60         data.push_back('?');  in BuildMethodTrace()
62     data.push_back(')');  in BuildMethodTrace()
63     data.push_back('\n');  in BuildMethodTrace()
64     return data;  in BuildMethodTrace()
69     std::string data;  in BuildJsStackTrace()  local
81             data += BuildMethodTrace(method, pcOffset);  in BuildJsStackTrace()
86             data.append("    at native method (").append(strm.str()).append(")\n");  in BuildJsStackTrace()
89     if (data.empty()) {  in BuildJsStackTrace()
93         data = stack.str();  in BuildJsStackTrace()
96     return data;  in BuildJsStackTrace()