X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FSupport%2FCommandLine.h;h=e9c6aaff947d2fc992147f83011c2eee2e4180e1;hb=9a5263241d40d493445d7f386b4d76be088c3ac1;hp=90f38bce2dc468e6766f32fddb861b756603d412;hpb=4251ce4b10a35552df67ea624b180ad247960eef;p=oota-llvm.git diff --git a/include/llvm/Support/CommandLine.h b/include/llvm/Support/CommandLine.h index 90f38bce2dc..e9c6aaff947 100644 --- a/include/llvm/Support/CommandLine.h +++ b/include/llvm/Support/CommandLine.h @@ -1,10 +1,10 @@ //===- llvm/Support/CommandLine.h - Command line handler --------*- C++ -*-===// -// +// // 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 class implements a command line argument processor that is useful when @@ -21,6 +21,9 @@ #define LLVM_SUPPORT_COMMANDLINE_H #include "llvm/Support/type_traits.h" +#include "llvm/Support/DataTypes.h" +#include "llvm/Support/Compiler.h" +#include "llvm/ADT/SmallVector.h" #include #include #include @@ -37,7 +40,7 @@ namespace cl { //===----------------------------------------------------------------------===// // ParseCommandLineOptions - Command line option processing entry point. // -void ParseCommandLineOptions(int &argc, char **argv, +void ParseCommandLineOptions(int argc, char **argv, const char *Overview = 0); //===----------------------------------------------------------------------===// @@ -47,6 +50,17 @@ void ParseCommandLineOptions(int &argc, char **argv, void ParseEnvironmentOptions(const char *progName, const char *envvar, const char *Overview = 0); +///===---------------------------------------------------------------------===// +/// SetVersionPrinter - Override the default (LLVM specific) version printer +/// used to print out the version when --version is given +/// on the command line. This allows other systems using the +/// CommandLine utilities to print their own version string. +void SetVersionPrinter(void (*func)()); + + +// MarkOptionsChanged - Internal helper function. +void MarkOptionsChanged(); + //===----------------------------------------------------------------------===// // Flags permitted to be passed to command line arguments // @@ -66,21 +80,21 @@ enum NumOccurrences { // Flags for the number of occurrences allowed // ConsumeAfter = 0x05, - OccurrencesMask = 0x07, + OccurrencesMask = 0x07 }; enum ValueExpected { // Is a value required for the option? ValueOptional = 0x08, // The value can appear... or not ValueRequired = 0x10, // The value is required to appear! ValueDisallowed = 0x18, // A value may not be specified (for flags) - ValueMask = 0x18, + ValueMask = 0x18 }; enum OptionHidden { // Control whether -help shows this option NotHidden = 0x20, // Option included in --help & --help-hidden Hidden = 0x40, // -help doesn't, but --help-hidden does ReallyHidden = 0x60, // Neither --help nor --help-hidden show this arg - HiddenMask = 0x60, + HiddenMask = 0x60 }; // Formatting flags - This controls special features that the option might have @@ -103,13 +117,13 @@ enum FormattingFlags { Positional = 0x080, // Is a positional argument, no '-' required Prefix = 0x100, // Can this option directly prefix its value? Grouping = 0x180, // Can this option group with other options? - FormattingMask = 0x180, // Union of the above flags. + FormattingMask = 0x180 // Union of the above flags. }; enum MiscFlags { // Miscellaneous flags to adjust argument CommaSeparated = 0x200, // Should this cl::list split between commas? PositionalEatsArgs = 0x400, // Should this positional cl::list eat -args? - MiscMask = 0x600, // Union of the above flags. + MiscMask = 0x600 // Union of the above flags. }; @@ -126,34 +140,27 @@ class Option { // an argument. Should return true if there was an error processing the // argument and the program should exit. // - virtual bool handleOccurrence(unsigned pos, const char *ArgName, + virtual bool handleOccurrence(unsigned pos, const char *ArgName, const std::string &Arg) = 0; - virtual enum NumOccurrences getNumOccurrencesFlagDefault() const { - return Optional; - } virtual enum ValueExpected getValueExpectedFlagDefault() const { - return ValueOptional; - } - virtual enum OptionHidden getOptionHiddenFlagDefault() const { - return NotHidden; + return ValueOptional; } - virtual enum FormattingFlags getFormattingFlagDefault() const { - return NormalFormatting; - } - - int NumOccurrences; // The number of times specified - int Flags; // Flags for the argument - unsigned Position; // Position of last occurrence of the option + + // Out of line virtual function to provide home for the class. + virtual void anchor(); + + int NumOccurrences; // The number of times specified + int Flags; // Flags for the argument + unsigned Position; // Position of last occurrence of the option + Option *NextRegistered; // Singly linked list of registered options. public: - const char *ArgStr; // The argument string itself (ex: "help", "o") - const char *HelpStr; // The descriptive text message for --help - const char *ValueStr; // String describing what the value of this option is + const char *ArgStr; // The argument string itself (ex: "help", "o") + const char *HelpStr; // The descriptive text message for --help + const char *ValueStr; // String describing what the value of this option is inline enum NumOccurrences getNumOccurrencesFlag() const { - int NO = Flags & OccurrencesMask; - return NO ? static_cast(NO) - : getNumOccurrencesFlagDefault(); + return static_cast(Flags & OccurrencesMask); } inline enum ValueExpected getValueExpectedFlag() const { int VE = Flags & ValueMask; @@ -161,14 +168,10 @@ public: : getValueExpectedFlagDefault(); } inline enum OptionHidden getOptionHiddenFlag() const { - int OH = Flags & HiddenMask; - return OH ? static_cast(OH) - : getOptionHiddenFlagDefault(); + return static_cast(Flags & HiddenMask); } inline enum FormattingFlags getFormattingFlag() const { - int OH = Flags & FormattingMask; - return OH ? static_cast(OH) - : getFormattingFlagDefault(); + return static_cast(Flags & FormattingMask); } inline unsigned getMiscFlags() const { return Flags & MiscMask; @@ -186,11 +189,7 @@ public: void setValueStr(const char *S) { ValueStr = S; } void setFlag(unsigned Flag, unsigned FlagMask) { - if (Flags & FlagMask) { - error(": Specified two settings for the same option!"); - exit(1); - } - + Flags &= ~FlagMask; Flags |= Flag; } @@ -203,27 +202,33 @@ public: void setMiscFlag(enum MiscFlags M) { setFlag(M, M); } void setPosition(unsigned pos) { Position = pos; } protected: - Option() : NumOccurrences(0), Flags(0), Position(0), - ArgStr(""), HelpStr(""), ValueStr("") {} + explicit Option(unsigned DefaultFlags) + : NumOccurrences(0), Flags(DefaultFlags | NormalFormatting), Position(0), + NextRegistered(0), ArgStr(""), HelpStr(""), ValueStr("") { + assert(getNumOccurrencesFlag() != 0 && + getOptionHiddenFlag() != 0 && "Not all default flags specified!"); + } public: - // addArgument - Tell the system that this Option subclass will handle all - // occurrences of -ArgStr on the command line. + // addArgument - Register this argument with the commandline system. // - void addArgument(const char *ArgStr); - void removeArgument(const char *ArgStr); + void addArgument(); + + Option *getNextRegisteredOption() const { return NextRegistered; } // Return the width of the option tag for printing... virtual unsigned getOptionWidth() const = 0; - // printOptionInfo - Print out information about this option. The + // printOptionInfo - Print out information about this option. The // to-be-maintained width is specified. // virtual void printOptionInfo(unsigned GlobalWidth) const = 0; + virtual void getExtraOptionNames(std::vector &OptionNames) {} + // addOccurrence - Wrapper around handleOccurrence that enforces Flags // - bool addOccurrence(unsigned pos, const char *ArgName, + bool addOccurrence(unsigned pos, const char *ArgName, const std::string &Value); // Prints option name followed by message. Always returns true. @@ -294,9 +299,9 @@ LocationClass location(Ty &L) { return LocationClass(L); } //===----------------------------------------------------------------------===// // Enum valued command line option // -#define clEnumVal(ENUMVAL, DESC) #ENUMVAL, (int)ENUMVAL, DESC -#define clEnumValN(ENUMVAL, FLAGNAME, DESC) FLAGNAME, (int)ENUMVAL, DESC -#define clEnumValEnd ((void*)0) +#define clEnumVal(ENUMVAL, DESC) #ENUMVAL, int(ENUMVAL), DESC +#define clEnumValN(ENUMVAL, FLAGNAME, DESC) FLAGNAME, int(ENUMVAL), DESC +#define clEnumValEnd (reinterpret_cast(0)) // values - For custom data types, allow specifying a group of values together // as the values that go into the mapping that the option handler uses. Note @@ -308,10 +313,10 @@ class ValuesClass { // Use a vector instead of a map, because the lists should be short, // the overhead is less, and most importantly, it keeps them in the order // inserted so we can print our option out nicely. - std::vector > > Values; + SmallVector >,4> Values; void processValues(va_list Vals); public: - ValuesClass(const char *EnumName, DataType Val, const char *Desc, + ValuesClass(const char *EnumName, DataType Val, const char *Desc, va_list ValueArgs) { // Insert the first value, which is required. Values.push_back(std::make_pair(EnumName, std::make_pair(Val, Desc))); @@ -334,8 +339,8 @@ public: }; template -ValuesClass values(const char *Arg, DataType Val, const char *Desc, - ...) { +ValuesClass END_WITH_NULL values(const char *Arg, DataType Val, + const char *Desc, ...) { va_list ValueArgs; va_start(ValueArgs, Desc); ValuesClass Vals(Arg, Val, Desc, ValueArgs); @@ -366,14 +371,14 @@ struct generic_parser_base { // getOption - Return option name N. virtual const char *getOption(unsigned N) const = 0; - + // getDescription - Return description N virtual const char *getDescription(unsigned N) const = 0; // Return the width of the option tag for printing... virtual unsigned getOptionWidth(const Option &O) const; - // printOptionInfo - Print out information about this option. The + // printOptionInfo - Print out information about this option. The // to-be-maintained width is specified. // virtual void printOptionInfo(const Option &O, unsigned GlobalWidth) const; @@ -383,16 +388,18 @@ struct generic_parser_base { // argstr field should be stable, copy it down now. // hasArgStr = O.hasArgStr(); - + } + + void getExtraOptionNames(std::vector &OptionNames) { // If there has been no argstr specified, that means that we need to add an // argument for every possible option. This ensures that our options are // vectored to us. - // if (!hasArgStr) for (unsigned i = 0, e = getNumOptions(); i != e; ++i) - O.addArgument(getOption(i)); + OptionNames.push_back(getOption(i)); } + enum ValueExpected getValueExpectedFlagDefault() const { // If there is an ArgStr specified, then we are of the form: // @@ -429,20 +436,20 @@ protected: template class parser : public generic_parser_base { protected: - std::vector > > Values; + SmallVector >, 8> Values; public: typedef DataType parser_data_type; // Implement virtual functions needed by generic_parser_base - unsigned getNumOptions() const { return (unsigned)Values.size(); } + unsigned getNumOptions() const { return unsigned(Values.size()); } const char *getOption(unsigned N) const { return Values[N].first; } const char *getDescription(unsigned N) const { return Values[N].second.second; } // parse - Return true on error. - bool parse(Option &O, const char *ArgName, const std::string &Arg, + bool parse(Option &O, const char *ArgName, const std::string &Arg, DataType &V) { std::string ArgVal; if (hasArgStr) @@ -459,16 +466,18 @@ public: return O.error(": Cannot find option named '" + ArgVal + "'!"); } - // addLiteralOption - Add an entry to the mapping table... + /// addLiteralOption - Add an entry to the mapping table. + /// template void addLiteralOption(const char *Name, const DT &V, const char *HelpStr) { assert(findOption(Name) == Values.size() && "Option already exists!"); Values.push_back(std::make_pair(Name, std::make_pair(static_cast(V),HelpStr))); + MarkOptionsChanged(); } - // removeLiteralOption - Remove the specified option. - // + /// removeLiteralOption - Remove the specified option. + /// void removeLiteralOption(const char *Name) { unsigned N = findOption(Name); assert(N != Values.size() && "Option not found!"); @@ -485,12 +494,14 @@ struct basic_parser_impl { // non-template implementation of basic_parser enum ValueExpected getValueExpectedFlagDefault() const { return ValueRequired; } - + + void getExtraOptionNames(std::vector &OptionNames) {} + void initialize(Option &O) {} - + // Return the width of the option tag for printing... unsigned getOptionWidth(const Option &O) const; - + // printOptionInfo - Print out information about this option. The // to-be-maintained width is specified. // @@ -498,6 +509,9 @@ struct basic_parser_impl { // non-template implementation of basic_parser // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "value"; } + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; // basic_parser - The real basic parser is just a template wrapper that provides @@ -508,7 +522,6 @@ struct basic_parser : public basic_parser_impl { typedef DataType parser_data_type; }; - //-------------------------------------------------- // parser // @@ -519,13 +532,40 @@ public: bool parse(Option &O, const char *ArgName, const std::string &Arg, bool &Val); enum ValueExpected getValueExpectedFlagDefault() const { - return ValueOptional; + return ValueOptional; } - // getValueName - Do not print = at all + // getValueName - Do not print = at all. virtual const char *getValueName() const { return 0; } + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); + +//-------------------------------------------------- +// parser +enum boolOrDefault { BOU_UNSET, BOU_TRUE, BOU_FALSE }; +template<> +class parser : public basic_parser { +public: + // parse - Return true on error. + bool parse(Option &O, const char *ArgName, const std::string &Arg, + boolOrDefault &Val); + + enum ValueExpected getValueExpectedFlagDefault() const { + return ValueOptional; + } + + // getValueName - Do not print = at all. + virtual const char *getValueName() const { return 0; } + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); +}; + +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); //-------------------------------------------------- // parser @@ -538,8 +578,13 @@ public: // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "int"; } + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); + //-------------------------------------------------- // parser @@ -552,8 +597,12 @@ public: // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "uint"; } + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); //-------------------------------------------------- // parser @@ -566,8 +615,12 @@ public: // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "number"; } + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); //-------------------------------------------------- // parser @@ -580,8 +633,12 @@ public: // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "number"; } + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); //-------------------------------------------------- // parser @@ -590,7 +647,7 @@ template<> class parser : public basic_parser { public: // parse - Return true on error. - bool parse(Option &O, const char *AN, const std::string &Arg, + bool parse(Option &O, const char *AN, const std::string &Arg, std::string &Value) { Value = Arg; return false; @@ -598,8 +655,13 @@ public: // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "string"; } + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); + //===----------------------------------------------------------------------===// // applicator class - This class is used because we must use partial // specialization to handle literal string arguments specially (const char* does @@ -727,14 +789,15 @@ public: // template > -class opt : public Option, +class opt : public Option, public opt_storage::value> { ParserClass Parser; - virtual bool handleOccurrence(unsigned pos, const char *ArgName, + virtual bool handleOccurrence(unsigned pos, const char *ArgName, const std::string &Arg) { - typename ParserClass::parser_data_type Val; + typename ParserClass::parser_data_type Val = + typename ParserClass::parser_data_type(); if (Parser.parse(*this, ArgName, Arg, Val)) return true; // Parse error! setValue(Val); @@ -745,6 +808,9 @@ class opt : public Option, virtual enum ValueExpected getValueExpectedFlagDefault() const { return Parser.getValueExpectedFlagDefault(); } + virtual void getExtraOptionNames(std::vector &OptionNames) { + return Parser.getExtraOptionNames(OptionNames); + } // Forward printing stuff to the parser... virtual unsigned getOptionWidth() const {return Parser.getOptionWidth(*this);} @@ -753,7 +819,7 @@ class opt : public Option, } void done() { - addArgument(ArgStr); + addArgument(); Parser.initialize(*this); } public: @@ -772,34 +838,36 @@ public: // One option... template - opt(const M0t &M0) { + explicit opt(const M0t &M0) : Option(Optional | NotHidden) { apply(M0, this); done(); } // Two options... template - opt(const M0t &M0, const M1t &M1) { + opt(const M0t &M0, const M1t &M1) : Option(Optional | NotHidden) { apply(M0, this); apply(M1, this); done(); } // Three options... template - opt(const M0t &M0, const M1t &M1, const M2t &M2) { + opt(const M0t &M0, const M1t &M1, + const M2t &M2) : Option(Optional | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); done(); } // Four options... template - opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3) { + opt(const M0t &M0, const M1t &M1, const M2t &M2, + const M3t &M3) : Option(Optional | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); done(); } // Five options... template opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, - const M4t &M4) { + const M4t &M4) : Option(Optional | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); apply(M4, this); done(); @@ -808,7 +876,7 @@ public: template opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, - const M4t &M4, const M5t &M5) { + const M4t &M4, const M5t &M5) : Option(Optional | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); apply(M4, this); apply(M5, this); done(); @@ -817,7 +885,8 @@ public: template opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, - const M4t &M4, const M5t &M5, const M6t &M6) { + const M4t &M4, const M5t &M5, + const M6t &M6) : Option(Optional | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); apply(M4, this); apply(M5, this); apply(M6, this); done(); @@ -826,13 +895,19 @@ public: template opt(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, - const M4t &M4, const M5t &M5, const M6t &M6, const M7t &M7) { + const M4t &M4, const M5t &M5, const M6t &M6, + const M7t &M7) : Option(Optional | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); apply(M4, this); apply(M5, this); apply(M6, this); apply(M7, this); done(); } }; +EXTERN_TEMPLATE_INSTANTIATION(class opt); +EXTERN_TEMPLATE_INSTANTIATION(class opt); +EXTERN_TEMPLATE_INSTANTIATION(class opt); +EXTERN_TEMPLATE_INSTANTIATION(class opt); + //===----------------------------------------------------------------------===// // list_storage class @@ -884,16 +959,17 @@ class list : public Option, public list_storage { std::vector Positions; ParserClass Parser; - virtual enum NumOccurrences getNumOccurrencesFlagDefault() const { - return ZeroOrMore; - } virtual enum ValueExpected getValueExpectedFlagDefault() const { return Parser.getValueExpectedFlagDefault(); } - - virtual bool handleOccurrence(unsigned pos, const char *ArgName, + virtual void getExtraOptionNames(std::vector &OptionNames) { + return Parser.getExtraOptionNames(OptionNames); + } + + virtual bool handleOccurrence(unsigned pos, const char *ArgName, const std::string &Arg) { - typename ParserClass::parser_data_type Val; + typename ParserClass::parser_data_type Val = + typename ParserClass::parser_data_type(); if (Parser.parse(*this, ArgName, Arg, Val)) return true; // Parse Error! addValue(Val); @@ -909,45 +985,47 @@ class list : public Option, public list_storage { } void done() { - addArgument(ArgStr); + addArgument(); Parser.initialize(*this); } public: ParserClass &getParser() { return Parser; } - unsigned getPosition(unsigned optnum) const { + unsigned getPosition(unsigned optnum) const { assert(optnum < this->size() && "Invalid option index"); - return Positions[optnum]; + return Positions[optnum]; } // One option... template - list(const M0t &M0) { + explicit list(const M0t &M0) : Option(ZeroOrMore | NotHidden) { apply(M0, this); done(); } // Two options... template - list(const M0t &M0, const M1t &M1) { + list(const M0t &M0, const M1t &M1) : Option(ZeroOrMore | NotHidden) { apply(M0, this); apply(M1, this); done(); } // Three options... template - list(const M0t &M0, const M1t &M1, const M2t &M2) { + list(const M0t &M0, const M1t &M1, const M2t &M2) + : Option(ZeroOrMore | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); done(); } // Four options... template - list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3) { + list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3) + : Option(ZeroOrMore | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); done(); } // Five options... template list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, - const M4t &M4) { + const M4t &M4) : Option(ZeroOrMore | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); apply(M4, this); done(); @@ -956,7 +1034,7 @@ public: template list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, - const M4t &M4, const M5t &M5) { + const M4t &M4, const M5t &M5) : Option(ZeroOrMore | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); apply(M4, this); apply(M5, this); done(); @@ -965,7 +1043,8 @@ public: template list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, - const M4t &M4, const M5t &M5, const M6t &M6) { + const M4t &M4, const M5t &M5, const M6t &M6) + : Option(ZeroOrMore | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); apply(M4, this); apply(M5, this); apply(M6, this); done(); @@ -974,7 +1053,194 @@ public: template list(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, - const M4t &M4, const M5t &M5, const M6t &M6, const M7t &M7) { + const M4t &M4, const M5t &M5, const M6t &M6, + const M7t &M7) : Option(ZeroOrMore | NotHidden) { + apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); + apply(M4, this); apply(M5, this); apply(M6, this); apply(M7, this); + done(); + } +}; + +//===----------------------------------------------------------------------===// +// bits_storage class + +// Default storage class definition: external storage. This implementation +// assumes the user will specify a variable to store the data into with the +// cl::location(x) modifier. +// +template +class bits_storage { + unsigned *Location; // Where to store the bits... + + template + static unsigned Bit(const T &V) { + unsigned BitPos = reinterpret_cast(V); + assert(BitPos < sizeof(unsigned) * 8 && + "enum exceeds width of bit vector!"); + return 1 << BitPos; + } + +public: + bits_storage() : Location(0) {} + + bool setLocation(Option &O, unsigned &L) { + if (Location) + return O.error(": cl::location(x) specified more than once!"); + Location = &L; + return false; + } + + template + void addValue(const T &V) { + assert(Location != 0 && "cl::location(...) not specified for a command " + "line option with external storage!"); + *Location |= Bit(V); + } + + unsigned getBits() { return *Location; } + + template + bool isSet(const T &V) { + return (*Location & Bit(V)) != 0; + } +}; + + +// Define how to hold bits. Since we can inherit from a class, we do so. +// This makes us exactly compatible with the bits in all cases that it is used. +// +template +class bits_storage { + unsigned Bits; // Where to store the bits... + + template + static unsigned Bit(const T &V) { + unsigned BitPos = reinterpret_cast(V); + assert(BitPos < sizeof(unsigned) * 8 && + "enum exceeds width of bit vector!"); + return 1 << BitPos; + } + +public: + template + void addValue(const T &V) { + Bits |= Bit(V); + } + + unsigned getBits() { return Bits; } + + template + bool isSet(const T &V) { + return (Bits & Bit(V)) != 0; + } +}; + + +//===----------------------------------------------------------------------===// +// bits - A bit vector of command options. +// +template > +class bits : public Option, public bits_storage { + std::vector Positions; + ParserClass Parser; + + virtual enum ValueExpected getValueExpectedFlagDefault() const { + return Parser.getValueExpectedFlagDefault(); + } + virtual void getExtraOptionNames(std::vector &OptionNames) { + return Parser.getExtraOptionNames(OptionNames); + } + + virtual bool handleOccurrence(unsigned pos, const char *ArgName, + const std::string &Arg) { + typename ParserClass::parser_data_type Val = + typename ParserClass::parser_data_type(); + if (Parser.parse(*this, ArgName, Arg, Val)) + return true; // Parse Error! + addValue(Val); + setPosition(pos); + Positions.push_back(pos); + return false; + } + + // Forward printing stuff to the parser... + virtual unsigned getOptionWidth() const {return Parser.getOptionWidth(*this);} + virtual void printOptionInfo(unsigned GlobalWidth) const { + Parser.printOptionInfo(*this, GlobalWidth); + } + + void done() { + addArgument(); + Parser.initialize(*this); + } +public: + ParserClass &getParser() { return Parser; } + + unsigned getPosition(unsigned optnum) const { + assert(optnum < this->size() && "Invalid option index"); + return Positions[optnum]; + } + + // One option... + template + explicit bits(const M0t &M0) : Option(ZeroOrMore | NotHidden) { + apply(M0, this); + done(); + } + // Two options... + template + bits(const M0t &M0, const M1t &M1) : Option(ZeroOrMore | NotHidden) { + apply(M0, this); apply(M1, this); + done(); + } + // Three options... + template + bits(const M0t &M0, const M1t &M1, const M2t &M2) + : Option(ZeroOrMore | NotHidden) { + apply(M0, this); apply(M1, this); apply(M2, this); + done(); + } + // Four options... + template + bits(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3) + : Option(ZeroOrMore | NotHidden) { + apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); + done(); + } + // Five options... + template + bits(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, + const M4t &M4) : Option(ZeroOrMore | NotHidden) { + apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); + apply(M4, this); + done(); + } + // Six options... + template + bits(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, + const M4t &M4, const M5t &M5) : Option(ZeroOrMore | NotHidden) { + apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); + apply(M4, this); apply(M5, this); + done(); + } + // Seven options... + template + bits(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, + const M4t &M4, const M5t &M5, const M6t &M6) + : Option(ZeroOrMore | NotHidden) { + apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); + apply(M4, this); apply(M5, this); apply(M6, this); + done(); + } + // Eight options... + template + bits(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3, + const M4t &M4, const M5t &M5, const M6t &M6, + const M7t &M7) : Option(ZeroOrMore | NotHidden) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); apply(M4, this); apply(M5, this); apply(M6, this); apply(M7, this); done(); @@ -987,13 +1253,10 @@ public: class alias : public Option { Option *AliasFor; - virtual bool handleOccurrence(unsigned pos, const char *ArgName, + virtual bool handleOccurrence(unsigned pos, const char *ArgName, const std::string &Arg) { return AliasFor->handleOccurrence(pos, AliasFor->ArgStr, Arg); } - // Aliases default to be hidden... - virtual enum OptionHidden getOptionHiddenFlagDefault() const {return Hidden;} - // Handle printing stuff... virtual unsigned getOptionWidth() const; virtual void printOptionInfo(unsigned GlobalWidth) const; @@ -1003,7 +1266,7 @@ class alias : public Option { error(": cl::alias must have argument name specified!"); if (AliasFor == 0) error(": cl::alias must have an cl::aliasopt(option) specified!"); - addArgument(ArgStr); + addArgument(); } public: void setAliasFor(Option &O) { @@ -1014,26 +1277,27 @@ public: // One option... template - alias(const M0t &M0) : AliasFor(0) { + explicit alias(const M0t &M0) : Option(Optional | Hidden), AliasFor(0) { apply(M0, this); done(); } // Two options... template - alias(const M0t &M0, const M1t &M1) : AliasFor(0) { + alias(const M0t &M0, const M1t &M1) : Option(Optional | Hidden), AliasFor(0) { apply(M0, this); apply(M1, this); done(); } // Three options... template - alias(const M0t &M0, const M1t &M1, const M2t &M2) : AliasFor(0) { + alias(const M0t &M0, const M1t &M1, const M2t &M2) + : Option(Optional | Hidden), AliasFor(0) { apply(M0, this); apply(M1, this); apply(M2, this); done(); } // Four options... template alias(const M0t &M0, const M1t &M1, const M2t &M2, const M3t &M3) - : AliasFor(0) { + : Option(Optional | Hidden), AliasFor(0) { apply(M0, this); apply(M1, this); apply(M2, this); apply(M3, this); done(); } @@ -1042,7 +1306,7 @@ public: // aliasfor - Modifier to set the option an alias aliases. struct aliasopt { Option &Opt; - aliasopt(Option &O) : Opt(O) {} + explicit aliasopt(Option &O) : Opt(O) {} void apply(alias &A) const { A.setAliasFor(Opt); } }; @@ -1055,6 +1319,7 @@ struct extrahelp { extrahelp(const char* help); }; +void PrintVersionMessage(); // This function just prints the help message, exactly the same way as if the // --help option had been given on the command line. // NOTE: THIS FUNCTION TERMINATES THE PROGRAM!