348   StringRef MajorStr, MinorStr;  in getExtensionVersion()  local
352   MajorStr = In.take_while(isDigit);  in getExtensionVersion()
353   In = In.substr(MajorStr.size());  in getExtensionVersion()
355   if (!MajorStr.empty() && In.consume_front("p")) {  in getExtensionVersion()
357     In = In.substr(MajorStr.size() + MinorStr.size() - 1);  in getExtensionVersion()
367   if (!MajorStr.empty() && MajorStr.getAsInteger(10, Major))  in getExtensionVersion()
377   ConsumeLength = MajorStr.size();  in getExtensionVersion()
401         (MajorStr.empty() && MinorStr.empty())) {  in getExtensionVersion()
411       std::string Error = "unsupported version number " + MajorStr.str();  in getExtensionVersion()
427   if (MajorStr.empty() && MinorStr.empty()) {  in getExtensionVersion()
440   std::string Error = "unsupported version number " + std::string(MajorStr);  in getExtensionVersion()