-// RemoveArgument - It's possible that the argument is no longer in the map if
-// options have already been processed and the map has been deleted!
-//
-static void RemoveArgument(const char *ArgName, Option *Opt) {
- if (CommandLineOptions == 0) return;
- assert(getOption(ArgName) == Opt && "Arg not in map!");
- CommandLineOptions->erase(ArgName);
- if (CommandLineOptions->empty()) {
- delete CommandLineOptions;
- CommandLineOptions = 0;
+
+//===----------------------------------------------------------------------===//
+// Basic, shared command line option processing machinery.
+//
+
+/// GetOptionInfo - Scan the list of registered options, turning them into data
+/// structures that are easier to handle.
+static void GetOptionInfo(std::vector<Option*> &PositionalOpts,
+ std::vector<Option*> &SinkOpts,
+ std::map<std::string, Option*> &OptionsMap) {
+ std::vector<const char*> OptionNames;
+ Option *CAOpt = 0; // The ConsumeAfter option if it exists.
+ for (Option *O = RegisteredOptionList; O; O = O->getNextRegisteredOption()) {
+ // If this option wants to handle multiple option names, get the full set.
+ // This handles enum options like "-O1 -O2" etc.
+ O->getExtraOptionNames(OptionNames);
+ if (O->ArgStr[0])
+ OptionNames.push_back(O->ArgStr);
+
+ // Handle named options.
+ for (size_t i = 0, e = OptionNames.size(); i != e; ++i) {
+ // Add argument to the argument map!
+ if (!OptionsMap.insert(std::pair<std::string,Option*>(OptionNames[i],
+ O)).second) {
+ cerr << ProgramName << ": CommandLine Error: Argument '"
+ << OptionNames[i] << "' defined more than once!\n";
+ }
+ }
+
+ OptionNames.clear();
+
+ // Remember information about positional options.
+ if (O->getFormattingFlag() == cl::Positional)
+ PositionalOpts.push_back(O);
+ else if (O->getMiscFlags() & cl::Sink) // Remember sink options
+ SinkOpts.push_back(O);
+ else if (O->getNumOccurrencesFlag() == cl::ConsumeAfter) {
+ if (CAOpt)
+ O->error("Cannot specify more than one option with cl::ConsumeAfter!");
+ CAOpt = O;
+ }