208   Option *LookupOption(StringRef &Arg, StringRef &Value);
250 Option *CommandLineParser::LookupOption(StringRef &Arg, StringRef &Value) {  in LookupOption()  argument
252   if (Arg.empty())  in LookupOption()
255   size_t EqualPos = Arg.find('=');  in LookupOption()
260     StringMap<Option *>::const_iterator I = OptionsMap.find(Arg);  in LookupOption()
267       OptionsMap.find(Arg.substr(0, EqualPos));  in LookupOption()
271   Value = Arg.substr(EqualPos + 1);  in LookupOption()
272   Arg = Arg.substr(0, EqualPos);  in LookupOption()
280 static Option *LookupNearestOption(StringRef Arg,  in LookupNearestOption()  argument
284   if (Arg.empty())  in LookupNearestOption()
288   std::pair<StringRef, StringRef> SplitArg = Arg.split('=');  in LookupNearestOption()
305     StringRef Flag = PermitValue ? LHS : Arg;  in LookupNearestOption()
416 static bool ProvidePositionalOption(Option *Handler, StringRef Arg, int i) {  in ProvidePositionalOption()  argument
418   return ProvideOption(Handler, Handler->ArgStr, Arg, 0, nullptr, Dummy);  in ProvidePositionalOption()
461 HandlePrefixedOrGroupedOption(StringRef &Arg, StringRef &Value,  in HandlePrefixedOrGroupedOption()  argument
464   if (Arg.size() == 1)  in HandlePrefixedOrGroupedOption()
469   Option *PGOpt = getOptionPred(Arg, Length, isPrefixedOrGrouping, OptionsMap);  in HandlePrefixedOrGroupedOption()
477     Value = Arg.substr(Length);  in HandlePrefixedOrGroupedOption()
478     Arg = Arg.substr(0, Length);  in HandlePrefixedOrGroupedOption()
479     assert(OptionsMap.count(Arg) && OptionsMap.find(Arg)->second == PGOpt);  in HandlePrefixedOrGroupedOption()
489     StringRef OneArgName = Arg.substr(0, Length);  in HandlePrefixedOrGroupedOption()
490     Arg = Arg.substr(Length);  in HandlePrefixedOrGroupedOption()
501     PGOpt = getOptionPred(Arg, Length, isGrouping, OptionsMap);  in HandlePrefixedOrGroupedOption()
502   } while (PGOpt && Length != Arg.size());  in HandlePrefixedOrGroupedOption()
747     const char *Arg = Argv[I];  in ExpandResponseFiles()  local
749     if (Arg == nullptr) {  in ExpandResponseFiles()
753     if (Arg[0] != '@') {  in ExpandResponseFiles()
768     if (!ExpandResponseFile(Arg + 1, Saver, Tokenizer, ExpandedArgv,  in ExpandResponseFiles()
1231 bool parser<bool>::parse(Option &O, StringRef ArgName, StringRef Arg,  in parse()  argument
1233   if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" ||  in parse()
1234       Arg == "1") {  in parse()
1239   if (Arg == "false" || Arg == "FALSE" || Arg == "False" || Arg == "0") {  in parse()
1243   return O.error("'" + Arg +  in parse()
1249 bool parser<boolOrDefault>::parse(Option &O, StringRef ArgName, StringRef Arg,  in parse()  argument
1251   if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" ||  in parse()
1252       Arg == "1") {  in parse()
1256   if (Arg == "false" || Arg == "FALSE" || Arg == "False" || Arg == "0") {  in parse()
1261   return O.error("'" + Arg +  in parse()
1267 bool parser<int>::parse(Option &O, StringRef ArgName, StringRef Arg,  in parse()  argument
1269   if (Arg.getAsInteger(0, Value))  in parse()
1270     return O.error("'" + Arg + "' value invalid for integer argument!");  in parse()
1276 bool parser<unsigned>::parse(Option &O, StringRef ArgName, StringRef Arg,  in parse()  argument
1279   if (Arg.getAsInteger(0, Value))  in parse()
1280     return O.error("'" + Arg + "' value invalid for uint argument!");  in parse()
1287                                        StringRef Arg,  in parse()
1290   if (Arg.getAsInteger(0, Value))  in parse()
1291     return O.error("'" + Arg + "' value invalid for uint argument!");  in parse()
1297 static bool parseDouble(Option &O, StringRef Arg, double &Value) {  in parseDouble()  argument
1298   SmallString<32> TmpStr(Arg.begin(), Arg.end());  in parseDouble()
1303     return O.error("'" + Arg + "' value invalid for floating point argument!");  in parseDouble()
1307 bool parser<double>::parse(Option &O, StringRef ArgName, StringRef Arg,  in parse()  argument
1309   return parseDouble(O, Arg, Val);  in parse()
1312 bool parser<float>::parse(Option &O, StringRef ArgName, StringRef Arg,  in parse()  argument
1315   if (parseDouble(O, Arg, dVal))  in parse()