//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include "llvm/Config/config.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/Streams.h"
#include "llvm/System/Path.h"
#include <algorithm>
#include <functional>
#include <map>
+#include <ostream>
#include <set>
-#include <iostream>
#include <cstdlib>
#include <cerrno>
#include <cstring>
+#include <climits>
using namespace llvm;
-
using namespace cl;
-// Globals for name and overview of program
-static std::string ProgramName ( "<premain>" );
+//===----------------------------------------------------------------------===//
+// Template instantiations and anchors.
+//
+TEMPLATE_INSTANTIATION(class basic_parser<bool>);
+TEMPLATE_INSTANTIATION(class basic_parser<boolOrDefault>);
+TEMPLATE_INSTANTIATION(class basic_parser<int>);
+TEMPLATE_INSTANTIATION(class basic_parser<unsigned>);
+TEMPLATE_INSTANTIATION(class basic_parser<double>);
+TEMPLATE_INSTANTIATION(class basic_parser<float>);
+TEMPLATE_INSTANTIATION(class basic_parser<std::string>);
+
+TEMPLATE_INSTANTIATION(class opt<unsigned>);
+TEMPLATE_INSTANTIATION(class opt<int>);
+TEMPLATE_INSTANTIATION(class opt<std::string>);
+TEMPLATE_INSTANTIATION(class opt<bool>);
+
+void Option::anchor() {}
+void basic_parser_impl::anchor() {}
+void parser<bool>::anchor() {}
+void parser<boolOrDefault>::anchor() {}
+void parser<int>::anchor() {}
+void parser<unsigned>::anchor() {}
+void parser<double>::anchor() {}
+void parser<float>::anchor() {}
+void parser<std::string>::anchor() {}
+
+//===----------------------------------------------------------------------===//
+
+// Globals for name and overview of program. Program name is not a string to
+// avoid static ctor/dtor issues.
+static char ProgramName[80] = "<premain>";
static const char *ProgramOverview = 0;
// This collects additional help to be printed.
-static std::vector<const char*> &MoreHelp() {
- static std::vector<const char*> moreHelp;
- return moreHelp;
-}
+static ManagedStatic<std::vector<const char*> > MoreHelp;
-extrahelp::extrahelp(const char* Help)
+extrahelp::extrahelp(const char *Help)
: morehelp(Help) {
- MoreHelp().push_back(Help);
+ MoreHelp->push_back(Help);
}
-//===----------------------------------------------------------------------===//
-// Basic, shared command line option processing machinery...
-//
+static bool OptionListChanged = false;
-// Return the global command line option vector. Making it a function scoped
-// static ensures that it will be initialized correctly before its first use.
-//
-static std::map<std::string, Option*> &getOpts() {
- static std::map<std::string, Option*> CommandLineOptions;
- return CommandLineOptions;
+// MarkOptionsChanged - Internal helper function.
+void cl::MarkOptionsChanged() {
+ OptionListChanged = true;
}
-static Option *getOption(const std::string &Str) {
- std::map<std::string,Option*>::iterator I = getOpts().find(Str);
- return I != getOpts().end() ? I->second : 0;
-}
+/// RegisteredOptionList - This is the list of the command line options that
+/// have statically constructed themselves.
+static Option *RegisteredOptionList = 0;
-static std::vector<Option*> &getPositionalOpts() {
- static std::vector<Option*> Positional;
- return Positional;
+void Option::addArgument() {
+ assert(NextRegistered == 0 && "argument multiply registered!");
+
+ NextRegistered = RegisteredOptionList;
+ RegisteredOptionList = this;
+ MarkOptionsChanged();
}
-static void AddArgument(const char *ArgName, Option *Opt) {
- if (getOption(ArgName)) {
- std::cerr << ProgramName << ": CommandLine Error: Argument '"
- << ArgName << "' defined more than once!\n";
- } else {
- // Add argument to the argument map!
- getOpts()[ArgName] = Opt;
+
+//===----------------------------------------------------------------------===//
+// 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 (unsigned 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[0] << "' 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;
+ }
}
+
+ if (CAOpt)
+ PositionalOpts.push_back(CAOpt);
+
+ // Make sure that they are in order of registration not backwards.
+ std::reverse(PositionalOpts.begin(), PositionalOpts.end());
}
-// 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(getOpts().empty()) return;
-#ifndef NDEBUG
- // This disgusting HACK is brought to you courtesy of GCC 3.3.2, which ICE's
- // If we pass ArgName directly into getOption here.
- std::string Tmp = ArgName;
- assert(getOption(Tmp) == Opt && "Arg not in map!");
-#endif
- getOpts().erase(ArgName);
+/// LookupOption - Lookup the option specified by the specified option on the
+/// command line. If there is a value specified (after an equal sign) return
+/// that as well.
+static Option *LookupOption(const char *&Arg, const char *&Value,
+ std::map<std::string, Option*> &OptionsMap) {
+ while (*Arg == '-') ++Arg; // Eat leading dashes
+
+ const char *ArgEnd = Arg;
+ while (*ArgEnd && *ArgEnd != '=')
+ ++ArgEnd; // Scan till end of argument name.
+
+ if (*ArgEnd == '=') // If we have an equals sign...
+ Value = ArgEnd+1; // Get the value, not the equals
+
+
+ if (*Arg == 0) return 0;
+
+ // Look up the option.
+ std::map<std::string, Option*>::iterator I =
+ OptionsMap.find(std::string(Arg, ArgEnd));
+ return I != OptionsMap.end() ? I->second : 0;
}
static inline bool ProvideOption(Option *Handler, const char *ArgName,
case ValueOptional:
break;
default:
- std::cerr << ProgramName
- << ": Bad ValueMask flag! CommandLine usage error:"
- << Handler->getValueExpectedFlag() << "\n";
+ cerr << ProgramName
+ << ": Bad ValueMask flag! CommandLine usage error:"
+ << Handler->getValueExpectedFlag() << "\n";
abort();
break;
}
// otherwise return null.
//
static Option *getOptionPred(std::string Name, unsigned &Length,
- bool (*Pred)(const Option*)) {
+ bool (*Pred)(const Option*),
+ std::map<std::string, Option*> &OptionsMap) {
- Option *Op = getOption(Name);
- if (Op && Pred(Op)) {
+ std::map<std::string, Option*>::iterator OMI = OptionsMap.find(Name);
+ if (OMI != OptionsMap.end() && Pred(OMI->second)) {
Length = Name.length();
- return Op;
+ return OMI->second;
}
if (Name.size() == 1) return 0;
do {
Name.erase(Name.end()-1, Name.end()); // Chop off the last character...
- Op = getOption(Name);
+ OMI = OptionsMap.find(Name);
// Loop while we haven't found an option and Name still has at least two
// characters in it (so that the next iteration will not be the empty
// string...
- } while ((Op == 0 || !Pred(Op)) && Name.size() > 1);
+ } while ((OMI == OptionsMap.end() || !Pred(OMI->second)) && Name.size() > 1);
- if (Op && Pred(Op)) {
+ if (OMI != OptionsMap.end() && Pred(OMI->second)) {
Length = Name.length();
- return Op; // Found one!
+ return OMI->second; // Found one!
}
return 0; // No option found!
}
/// using strdup (), so it is the caller's responsibility to free ()
/// them later.
///
-static void ParseCStringVector (std::vector<char *> &output,
- const char *input) {
+static void ParseCStringVector(std::vector<char *> &output,
+ const char *input) {
// Characters which will be treated as token separators:
- static const char *delims = " \v\f\t\r\n";
+ static const char *const delims = " \v\f\t\r\n";
std::string work (input);
// Skip past any delims at head of input string.
assert(envVar && "Environment variable name missing");
// Get the environment variable they want us to parse options out of.
- const char *envValue = getenv (envVar);
+ const char *envValue = getenv(envVar);
if (!envValue)
return;
// Get program's "name", which we wouldn't know without the caller
// telling us.
- std::vector<char *> newArgv;
- newArgv.push_back (strdup (progName));
+ std::vector<char*> newArgv;
+ newArgv.push_back(strdup(progName));
// Parse the value of the environment variable into a "command line"
// and hand it off to ParseCommandLineOptions().
- ParseCStringVector (newArgv, envValue);
- int newArgc = newArgv.size ();
- ParseCommandLineOptions (newArgc, &newArgv[0], Overview);
+ ParseCStringVector(newArgv, envValue);
+ int newArgc = newArgv.size();
+ ParseCommandLineOptions(newArgc, &newArgv[0], Overview);
// Free all the strdup()ed strings.
- for (std::vector<char *>::iterator i = newArgv.begin (), e = newArgv.end ();
- i != e; ++i) {
+ for (std::vector<char*>::iterator i = newArgv.begin(), e = newArgv.end();
+ i != e; ++i)
free (*i);
- }
}
-/// LookupOption - Lookup the option specified by the specified option on the
-/// command line. If there is a value specified (after an equal sign) return
-/// that as well.
-static Option *LookupOption(const char *&Arg, const char *&Value) {
- while (*Arg == '-') ++Arg; // Eat leading dashes
-
- const char *ArgEnd = Arg;
- while (*ArgEnd && *ArgEnd != '=')
- ++ArgEnd; // Scan till end of argument name.
-
- if (*ArgEnd == '=') // If we have an equals sign...
- Value = ArgEnd+1; // Get the value, not the equals
-
-
- if (*Arg == 0) return 0;
-
- // Look up the option.
- std::map<std::string, Option*> &Opts = getOpts();
- std::map<std::string, Option*>::iterator I =
- Opts.find(std::string(Arg, ArgEnd));
- return (I != Opts.end()) ? I->second : 0;
-}
-
-void cl::ParseCommandLineOptions(int &argc, char **argv,
+void cl::ParseCommandLineOptions(int argc, char **argv,
const char *Overview) {
- assert((!getOpts().empty() || !getPositionalOpts().empty()) &&
- "No options specified, or ParseCommandLineOptions called more"
- " than once!");
+ // Process all registered options.
+ std::vector<Option*> PositionalOpts;
+ std::vector<Option*> SinkOpts;
+ std::map<std::string, Option*> Opts;
+ GetOptionInfo(PositionalOpts, SinkOpts, Opts);
+
+ assert((!Opts.empty() || !PositionalOpts.empty()) &&
+ "No options specified!");
sys::Path progname(argv[0]);
- ProgramName = sys::Path(argv[0]).getLast();
+
+ // Copy the program name into ProgName, making sure not to overflow it.
+ std::string ProgName = sys::Path(argv[0]).getLast();
+ if (ProgName.size() > 79) ProgName.resize(79);
+ strcpy(ProgramName, ProgName.c_str());
+
ProgramOverview = Overview;
bool ErrorParsing = false;
- std::map<std::string, Option*> &Opts = getOpts();
- std::vector<Option*> &PositionalOpts = getPositionalOpts();
-
// Check out the positional arguments to collect information about them.
unsigned NumPositionalRequired = 0;
const char *Value = 0;
const char *ArgName = "";
+ // If the option list changed, this means that some command line
+ // option has just been registered or deregistered. This can occur in
+ // response to things like -load, etc. If this happens, rescan the options.
+ if (OptionListChanged) {
+ PositionalOpts.clear();
+ SinkOpts.clear();
+ Opts.clear();
+ GetOptionInfo(PositionalOpts, SinkOpts, Opts);
+ OptionListChanged = false;
+ }
+
// Check to see if this is a positional argument. This argument is
// considered to be positional if it doesn't start with '-', if it is "-"
// itself, or if we have seen "--" already.
// option is another positional argument. If so, treat it as an argument,
// otherwise feed it to the eating positional.
ArgName = argv[i]+1;
- Handler = LookupOption(ArgName, Value);
+ Handler = LookupOption(ArgName, Value, Opts);
if (!Handler || Handler->getFormattingFlag() != cl::Positional) {
ProvidePositionalOption(ActivePositionalArg, argv[i], i);
continue; // We are done!
} else { // We start with a '-', must be an argument...
ArgName = argv[i]+1;
- Handler = LookupOption(ArgName, Value);
+ Handler = LookupOption(ArgName, Value, Opts);
// Check to see if this "option" is really a prefixed or grouped argument.
if (Handler == 0) {
std::string RealName(ArgName);
if (RealName.size() > 1) {
unsigned Length = 0;
- Option *PGOpt = getOptionPred(RealName, Length, isPrefixedOrGrouping);
+ Option *PGOpt = getOptionPred(RealName, Length, isPrefixedOrGrouping,
+ Opts);
// If the option is a prefixed option, then the value is simply the
// rest of the name... so fall through to later processing, by
0, 0, 0, Dummy);
// Get the next grouping option...
- PGOpt = getOptionPred(RealName, Length, isGrouping);
+ PGOpt = getOptionPred(RealName, Length, isGrouping, Opts);
} while (PGOpt && Length != RealName.size());
Handler = PGOpt; // Ate all of the options.
}
if (Handler == 0) {
- std::cerr << ProgramName << ": Unknown command line argument '"
- << argv[i] << "'. Try: '" << argv[0] << " --help'\n";
- ErrorParsing = true;
+ if (SinkOpts.empty()) {
+ cerr << ProgramName << ": Unknown command line argument '"
+ << argv[i] << "'. Try: '" << argv[0] << " --help'\n";
+ ErrorParsing = true;
+ } else {
+ for (std::vector<Option*>::iterator I = SinkOpts.begin(),
+ E = SinkOpts.end(); I != E ; ++I)
+ (*I)->addOccurrence(i, "", argv[i]);
+ }
continue;
}
// Check and handle positional arguments now...
if (NumPositionalRequired > PositionalVals.size()) {
- std::cerr << ProgramName
- << ": Not enough positional command line arguments specified!\n"
- << "Must specify at least " << NumPositionalRequired
- << " positional arguments: See: " << argv[0] << " --help\n";
+ cerr << ProgramName
+ << ": Not enough positional command line arguments specified!\n"
+ << "Must specify at least " << NumPositionalRequired
+ << " positional arguments: See: " << argv[0] << " --help\n";
ErrorParsing = true;
} else if (!HasUnlimitedPositionals
&& PositionalVals.size() > PositionalOpts.size()) {
- std::cerr << ProgramName
- << ": Too many positional arguments specified!\n"
- << "Can specify at most " << PositionalOpts.size()
- << " positional arguments: See: " << argv[0] << " --help\n";
+ cerr << ProgramName
+ << ": Too many positional arguments specified!\n"
+ << "Can specify at most " << PositionalOpts.size()
+ << " positional arguments: See: " << argv[0] << " --help\n";
ErrorParsing = true;
} else if (ConsumeAfterOpt == 0) {
// Free all of the memory allocated to the map. Command line options may only
// be processed once!
- getOpts().clear();
+ Opts.clear();
PositionalOpts.clear();
- MoreHelp().clear();
+ MoreHelp->clear();
// If we had an error processing our arguments, don't let the program execute
if (ErrorParsing) exit(1);
// Option Base class implementation
//
-// Out of line virtual function to provide home for the class.
-void Option::anchor() {
-}
-
bool Option::error(std::string Message, const char *ArgName) {
if (ArgName == 0) ArgName = ArgStr;
if (ArgName[0] == 0)
- std::cerr << HelpStr; // Be nice for positional arguments
+ cerr << HelpStr; // Be nice for positional arguments
else
- std::cerr << ProgramName << ": for the -" << ArgName;
+ cerr << ProgramName << ": for the -" << ArgName;
- std::cerr << " option: " << Message << "\n";
+ cerr << " option: " << Message << "\n";
return true;
}
return handleOccurrence(pos, ArgName, Value);
}
-// addArgument - Tell the system that this Option subclass will handle all
-// occurrences of -ArgStr on the command line.
-//
-void Option::addArgument(const char *ArgStr) {
- if (ArgStr[0])
- AddArgument(ArgStr, this);
-
- if (getFormattingFlag() == Positional)
- getPositionalOpts().push_back(this);
- else if (getNumOccurrencesFlag() == ConsumeAfter) {
- if (!getPositionalOpts().empty() &&
- getPositionalOpts().front()->getNumOccurrencesFlag() == ConsumeAfter)
- error("Cannot specify more than one option with cl::ConsumeAfter!");
- getPositionalOpts().insert(getPositionalOpts().begin(), this);
- }
-}
-
-void Option::removeArgument(const char *ArgStr) {
- if (ArgStr[0])
- RemoveArgument(ArgStr, this);
-
- if (getFormattingFlag() == Positional) {
- std::vector<Option*>::iterator I =
- std::find(getPositionalOpts().begin(), getPositionalOpts().end(), this);
- assert(I != getPositionalOpts().end() && "Arg not registered!");
- getPositionalOpts().erase(I);
- } else if (getNumOccurrencesFlag() == ConsumeAfter) {
- assert(!getPositionalOpts().empty() && getPositionalOpts()[0] == this &&
- "Arg not registered correctly!");
- getPositionalOpts().erase(getPositionalOpts().begin());
- }
-}
-
// getValueStr - Get the value description string, using "DefaultMsg" if nothing
// has been specified yet.
// Print out the option for the alias.
void alias::printOptionInfo(unsigned GlobalWidth) const {
unsigned L = std::strlen(ArgStr);
- std::cout << " -" << ArgStr << std::string(GlobalWidth-L-6, ' ') << " - "
- << HelpStr << "\n";
+ cout << " -" << ArgStr << std::string(GlobalWidth-L-6, ' ') << " - "
+ << HelpStr << "\n";
}
//
void basic_parser_impl::printOptionInfo(const Option &O,
unsigned GlobalWidth) const {
- std::cout << " -" << O.ArgStr;
+ cout << " -" << O.ArgStr;
if (const char *ValName = getValueName())
- std::cout << "=<" << getValueStr(O, ValName) << ">";
+ cout << "=<" << getValueStr(O, ValName) << ">";
- std::cout << std::string(GlobalWidth-getOptionWidth(O), ' ') << " - "
- << O.HelpStr << "\n";
+ cout << std::string(GlobalWidth-getOptionWidth(O), ' ') << " - "
+ << O.HelpStr << "\n";
}
return false;
}
+// parser<boolOrDefault> implementation
+//
+bool parser<boolOrDefault>::parse(Option &O, const char *ArgName,
+ const std::string &Arg, boolOrDefault &Value) {
+ if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" ||
+ Arg == "1") {
+ Value = BOU_TRUE;
+ } else if (Arg == "false" || Arg == "FALSE" || Arg == "False" || Arg == "0") {
+ Value = BOU_FALSE;
+ } else {
+ return O.error(": '" + Arg +
+ "' is invalid value for boolean argument! Try 0 or 1");
+ }
+ return false;
+}
+
// parser<int> implementation
//
bool parser<int>::parse(Option &O, const char *ArgName,
unsigned GlobalWidth) const {
if (O.hasArgStr()) {
unsigned L = std::strlen(O.ArgStr);
- std::cout << " -" << O.ArgStr << std::string(GlobalWidth-L-6, ' ')
- << " - " << O.HelpStr << "\n";
+ cout << " -" << O.ArgStr << std::string(GlobalWidth-L-6, ' ')
+ << " - " << O.HelpStr << "\n";
for (unsigned i = 0, e = getNumOptions(); i != e; ++i) {
unsigned NumSpaces = GlobalWidth-strlen(getOption(i))-8;
- std::cout << " =" << getOption(i) << std::string(NumSpaces, ' ')
- << " - " << getDescription(i) << "\n";
+ cout << " =" << getOption(i) << std::string(NumSpaces, ' ')
+ << " - " << getDescription(i) << "\n";
}
} else {
if (O.HelpStr[0])
- std::cout << " " << O.HelpStr << "\n";
+ cout << " " << O.HelpStr << "\n";
for (unsigned i = 0, e = getNumOptions(); i != e; ++i) {
unsigned L = std::strlen(getOption(i));
- std::cout << " -" << getOption(i) << std::string(GlobalWidth-L-8, ' ')
- << " - " << getDescription(i) << "\n";
+ cout << " -" << getOption(i) << std::string(GlobalWidth-L-8, ' ')
+ << " - " << getDescription(i) << "\n";
}
}
}
}
public:
- HelpPrinter(bool showHidden) : ShowHidden(showHidden) {
+ explicit HelpPrinter(bool showHidden) : ShowHidden(showHidden) {
EmptyArg = 0;
}
void operator=(bool Value) {
if (Value == false) return;
+ // Get all the options.
+ std::vector<Option*> PositionalOpts;
+ std::vector<Option*> SinkOpts;
+ std::map<std::string, Option*> OptMap;
+ GetOptionInfo(PositionalOpts, SinkOpts, OptMap);
+
// Copy Options into a vector so we can sort them as we like...
- std::vector<std::pair<std::string, Option*> > Options;
- copy(getOpts().begin(), getOpts().end(), std::back_inserter(Options));
+ std::vector<std::pair<std::string, Option*> > Opts;
+ copy(OptMap.begin(), OptMap.end(), std::back_inserter(Opts));
// Eliminate Hidden or ReallyHidden arguments, depending on ShowHidden
- Options.erase(std::remove_if(Options.begin(), Options.end(),
- std::ptr_fun(ShowHidden ? isReallyHidden : isHidden)),
- Options.end());
+ Opts.erase(std::remove_if(Opts.begin(), Opts.end(),
+ std::ptr_fun(ShowHidden ? isReallyHidden : isHidden)),
+ Opts.end());
// Eliminate duplicate entries in table (from enum flags options, f.e.)
{ // Give OptionSet a scope
std::set<Option*> OptionSet;
- for (unsigned i = 0; i != Options.size(); ++i)
- if (OptionSet.count(Options[i].second) == 0)
- OptionSet.insert(Options[i].second); // Add new entry to set
+ for (unsigned i = 0; i != Opts.size(); ++i)
+ if (OptionSet.count(Opts[i].second) == 0)
+ OptionSet.insert(Opts[i].second); // Add new entry to set
else
- Options.erase(Options.begin()+i--); // Erase duplicate
+ Opts.erase(Opts.begin()+i--); // Erase duplicate
}
if (ProgramOverview)
- std::cout << "OVERVIEW:" << ProgramOverview << "\n";
+ cout << "OVERVIEW: " << ProgramOverview << "\n";
- std::cout << "USAGE: " << ProgramName << " [options]";
+ cout << "USAGE: " << ProgramName << " [options]";
- // Print out the positional options...
- std::vector<Option*> &PosOpts = getPositionalOpts();
+ // Print out the positional options.
Option *CAOpt = 0; // The cl::ConsumeAfter option, if it exists...
- if (!PosOpts.empty() && PosOpts[0]->getNumOccurrencesFlag() == ConsumeAfter)
- CAOpt = PosOpts[0];
-
- for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i) {
- if (PosOpts[i]->ArgStr[0])
- std::cout << " --" << PosOpts[i]->ArgStr;
- std::cout << " " << PosOpts[i]->HelpStr;
+ if (!PositionalOpts.empty() &&
+ PositionalOpts[0]->getNumOccurrencesFlag() == ConsumeAfter)
+ CAOpt = PositionalOpts[0];
+
+ for (unsigned i = CAOpt != 0, e = PositionalOpts.size(); i != e; ++i) {
+ if (PositionalOpts[i]->ArgStr[0])
+ cout << " --" << PositionalOpts[i]->ArgStr;
+ cout << " " << PositionalOpts[i]->HelpStr;
}
// Print the consume after option info if it exists...
- if (CAOpt) std::cout << " " << CAOpt->HelpStr;
+ if (CAOpt) cout << " " << CAOpt->HelpStr;
- std::cout << "\n\n";
+ cout << "\n\n";
// Compute the maximum argument length...
MaxArgLen = 0;
- for (unsigned i = 0, e = Options.size(); i != e; ++i)
- MaxArgLen = std::max(MaxArgLen, Options[i].second->getOptionWidth());
+ for (unsigned i = 0, e = Opts.size(); i != e; ++i)
+ MaxArgLen = std::max(MaxArgLen, Opts[i].second->getOptionWidth());
- std::cout << "OPTIONS:\n";
- for (unsigned i = 0, e = Options.size(); i != e; ++i)
- Options[i].second->printOptionInfo(MaxArgLen);
+ cout << "OPTIONS:\n";
+ for (unsigned i = 0, e = Opts.size(); i != e; ++i)
+ Opts[i].second->printOptionInfo(MaxArgLen);
// Print any extra help the user has declared.
- for (std::vector<const char *>::iterator I = MoreHelp().begin(),
- E = MoreHelp().end(); I != E; ++I)
- std::cout << *I;
- MoreHelp().clear();
+ for (std::vector<const char *>::iterator I = MoreHelp->begin(),
+ E = MoreHelp->end(); I != E; ++I)
+ cout << *I;
+ MoreHelp->clear();
// Halt the program since help information was printed
- getOpts().clear(); // Don't bother making option dtors remove from map.
exit(1);
}
};
+} // End anonymous namespace
// Define the two HelpPrinter instances that are used to print out help, or
// help-hidden...
//
-HelpPrinter NormalPrinter(false);
-HelpPrinter HiddenPrinter(true);
+static HelpPrinter NormalPrinter(false);
+static HelpPrinter HiddenPrinter(true);
-cl::opt<HelpPrinter, true, parser<bool> >
+static cl::opt<HelpPrinter, true, parser<bool> >
HOp("help", cl::desc("Display available options (--help-hidden for more)"),
cl::location(NormalPrinter), cl::ValueDisallowed);
-cl::opt<HelpPrinter, true, parser<bool> >
+static cl::opt<HelpPrinter, true, parser<bool> >
HHOp("help-hidden", cl::desc("Display all available options"),
cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed);
-void (*OverrideVersionPrinter)() = 0;
+static void (*OverrideVersionPrinter)() = 0;
+namespace {
class VersionPrinter {
public:
- void operator=(bool OptionWasSpecified) {
- if (OptionWasSpecified) {
- if (OverrideVersionPrinter == 0) {
- std::cout << "Low Level Virtual Machine (http://llvm.org/):\n";
- std::cout << " " << PACKAGE_NAME << " version " << PACKAGE_VERSION;
+ void print() {
+ cout << "Low Level Virtual Machine (http://llvm.org/):\n";
+ cout << " " << PACKAGE_NAME << " version " << PACKAGE_VERSION;
#ifdef LLVM_VERSION_INFO
- std::cout << LLVM_VERSION_INFO;
+ cout << LLVM_VERSION_INFO;
#endif
- std::cout << "\n ";
+ cout << "\n ";
#ifndef __OPTIMIZE__
- std::cout << "DEBUG build";
+ cout << "DEBUG build";
#else
- std::cout << "Optimized build";
+ cout << "Optimized build";
#endif
#ifndef NDEBUG
- std::cout << " with assertions";
+ cout << " with assertions";
#endif
- std::cout << ".\n";
- getOpts().clear(); // Don't bother making option dtors remove from map.
+ cout << ".\n";
+ }
+ void operator=(bool OptionWasSpecified) {
+ if (OptionWasSpecified) {
+ if (OverrideVersionPrinter == 0) {
+ print();
exit(1);
} else {
(*OverrideVersionPrinter)();
}
}
};
+} // End anonymous namespace
// Define the --version option that prints out the LLVM version for the tool
-VersionPrinter VersionPrinterInstance;
-cl::opt<VersionPrinter, true, parser<bool> >
+static VersionPrinter VersionPrinterInstance;
+
+static cl::opt<VersionPrinter, true, parser<bool> >
VersOp("version", cl::desc("Display the version of this program"),
cl::location(VersionPrinterInstance), cl::ValueDisallowed);
-
-} // End anonymous namespace
-
// Utility function for printing the help message.
void cl::PrintHelpMessage() {
// This looks weird, but it actually prints the help message. The
NormalPrinter = true;
}
+/// Utility function for printing version number.
+void cl::PrintVersionMessage() {
+ VersionPrinterInstance.print();
+}
+
void cl::SetVersionPrinter(void (*func)()) {
OverrideVersionPrinter = func;
}