X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FSupport%2FCommandLine.h;h=8f7d879f2ecc088c283429e61214dc70121557cb;hb=976f770e2d008d323b760393c998cfc912763eec;hp=7455f623ecdd647ada5b62441fc8561732e7d0c0;hpb=dcb115bc826a5eaa2b7b3c3ce7245f8ee86287e6;p=oota-llvm.git diff --git a/include/llvm/Support/CommandLine.h b/include/llvm/Support/CommandLine.h index 7455f623ecd..8f7d879f2ec 100644 --- a/include/llvm/Support/CommandLine.h +++ b/include/llvm/Support/CommandLine.h @@ -1,10 +1,10 @@ -//===- Support/CommandLine.h - Flexible Command line parser -----*- C++ -*-===// -// +//===- 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 file 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 @@ -17,15 +17,18 @@ // //===----------------------------------------------------------------------===// -#ifndef SUPPORT_COMMANDLINE_H -#define SUPPORT_COMMANDLINE_H +#ifndef LLVM_SUPPORT_COMMANDLINE_H +#define LLVM_SUPPORT_COMMANDLINE_H -#include "Support/type_traits.h" -#include -#include -#include -#include +#include "llvm/Support/type_traits.h" +#include "llvm/Support/Compiler.h" +#include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/Twine.h" #include +#include +#include +#include +#include namespace llvm { @@ -37,7 +40,7 @@ namespace cl { //===----------------------------------------------------------------------===// // ParseCommandLineOptions - Command line option processing entry point. // -void ParseCommandLineOptions(int &argc, char **argv, +void ParseCommandLineOptions(int argc, const char * const *argv, const char *Overview = 0); //===----------------------------------------------------------------------===// @@ -47,15 +50,41 @@ 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)()); + +///===---------------------------------------------------------------------===// +/// AddExtraVersionPrinter - Add an extra printer to use in addition to the +/// default one. This can be called multiple times, +/// and each time it adds a new function to the list +/// which will be called after the basic LLVM version +/// printing is complete. Each can then add additional +/// information specific to the tool. +void AddExtraVersionPrinter(void (*func)()); + + +// PrintOptionValues - Print option values. +// With -print-options print the difference between option values and defaults. +// With -print-all-options print all option values. +// (Currently not perfect, but best-effort.) +void PrintOptionValues(); + +// MarkOptionsChanged - Internal helper function. +void MarkOptionsChanged(); + //===----------------------------------------------------------------------===// // Flags permitted to be passed to command line arguments // -enum NumOccurrences { // Flags for the number of occurrences allowed - Optional = 0x01, // Zero or One occurrence - ZeroOrMore = 0x02, // Zero or more occurrences allowed - Required = 0x03, // One occurrence required - OneOrMore = 0x04, // One or more occurrences required +enum NumOccurrencesFlag { // Flags for the number of occurrences allowed + Optional = 0x00, // Zero or One occurrence + ZeroOrMore = 0x01, // Zero or more occurrences allowed + Required = 0x02, // One occurrence required + OneOrMore = 0x03, // One or more occurrences required // ConsumeAfter - Indicates that this option is fed anything that follows the // last positional argument required by the application (it is an error if @@ -64,23 +93,20 @@ enum NumOccurrences { // Flags for the number of occurrences allowed // found. Once a filename is found, all of the succeeding arguments are // passed, unprocessed, to the ConsumeAfter option. // - ConsumeAfter = 0x05, - - OccurrencesMask = 0x07, + ConsumeAfter = 0x04 }; 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, + // zero reserved for the unspecified value + ValueOptional = 0x01, // The value can appear... or not + ValueRequired = 0x02, // The value is required to appear! + ValueDisallowed = 0x03 // A value may not be specified (for flags) }; 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, + NotHidden = 0x00, // Option included in -help & -help-hidden + Hidden = 0x01, // -help doesn't, but -help-hidden does + ReallyHidden = 0x02 // Neither -help nor -help-hidden show this arg }; // Formatting flags - This controls special features that the option might have @@ -99,17 +125,16 @@ enum OptionHidden { // Control whether -help shows this option // enum FormattingFlags { - NormalFormatting = 0x000, // Nothing special - 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, + NormalFormatting = 0x00, // Nothing special + Positional = 0x01, // Is a positional argument, no '-' required + Prefix = 0x02, // Can this option directly prefix its value? + Grouping = 0x03 // Can this option group with other options? }; -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, +enum MiscFlags { // Miscellaneous flags to adjust argument + CommaSeparated = 0x01, // Should this cl::list split between commas? + PositionalEatsArgs = 0x02, // Should this positional cl::list eat -args? + Sink = 0x04 // Should this cl::list eat all unknown options? }; @@ -119,58 +144,58 @@ enum MiscFlags { // Miscellaneous flags to adjust argument // class alias; class Option { - friend void cl::ParseCommandLineOptions(int &, char **, const char *); friend class alias; // handleOccurrences - Overriden by subclasses to handle the value passed into // an argument. Should return true if there was an error processing the // argument and the program should exit. // - virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) = 0; + virtual bool handleOccurrence(unsigned pos, StringRef ArgName, + StringRef Arg) = 0; - virtual enum NumOccurrences getNumOccurrencesFlagDefault() const { - return Optional; - } virtual enum ValueExpected getValueExpectedFlagDefault() const { - return ValueOptional; - } - virtual enum OptionHidden getOptionHiddenFlagDefault() const { - return NotHidden; - } - virtual enum FormattingFlags getFormattingFlagDefault() const { - return NormalFormatting; + return ValueOptional; } - int NumOccurrences; // The number of times specified - int Flags; // Flags for the argument + // Out of line virtual function to provide home for the class. + virtual void anchor(); + + int NumOccurrences; // The number of times specified + // Occurrences, HiddenFlag, and Formatting are all enum types but to avoid + // problems with signed enums in bitfields. + unsigned Occurrences : 3; // enum NumOccurrencesFlag + // not using the enum type for 'Value' because zero is an implementation + // detail representing the non-value + unsigned Value : 2; + unsigned HiddenFlag : 2; // enum OptionHidden + unsigned Formatting : 2; // enum FormattingFlags + unsigned Misc : 3; + unsigned Position; // Position of last occurrence of the option + unsigned AdditionalVals;// Greater than 0 for multi-valued 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(); + inline enum NumOccurrencesFlag getNumOccurrencesFlag() const { + return (enum NumOccurrencesFlag)Occurrences; } inline enum ValueExpected getValueExpectedFlag() const { - int VE = Flags & ValueMask; - return VE ? static_cast(VE) + return Value ? ((enum ValueExpected)Value) : getValueExpectedFlagDefault(); } inline enum OptionHidden getOptionHiddenFlag() const { - int OH = Flags & HiddenMask; - return OH ? static_cast(OH) - : getOptionHiddenFlagDefault(); + return (enum OptionHidden)HiddenFlag; } inline enum FormattingFlags getFormattingFlag() const { - int OH = Flags & FormattingMask; - return OH ? static_cast(OH) - : getFormattingFlagDefault(); + return (enum FormattingFlags)Formatting; } inline unsigned getMiscFlags() const { - return Flags & MiscMask; + return Misc; } + inline unsigned getPosition() const { return Position; } + inline unsigned getNumAdditionalVals() const { return AdditionalVals; } // hasArgStr - Return true if the argstr != "" bool hasArgStr() const { return ArgStr[0] != 0; } @@ -181,48 +206,50 @@ public: void setArgStr(const char *S) { ArgStr = S; } void setDescription(const char *S) { HelpStr = S; } 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 |= Flag; - } - - void setNumOccurrencesFlag(enum NumOccurrences Val) { - setFlag(Val, OccurrencesMask); + void setNumOccurrencesFlag(enum NumOccurrencesFlag Val) { + Occurrences = Val; } - void setValueExpectedFlag(enum ValueExpected Val) { setFlag(Val, ValueMask); } - void setHiddenFlag(enum OptionHidden Val) { setFlag(Val, HiddenMask); } - void setFormattingFlag(enum FormattingFlags V) { setFlag(V, FormattingMask); } - void setMiscFlag(enum MiscFlags M) { setFlag(M, M); } + void setValueExpectedFlag(enum ValueExpected Val) { Value = Val; } + void setHiddenFlag(enum OptionHidden Val) { HiddenFlag = Val; } + void setFormattingFlag(enum FormattingFlags V) { Formatting = V; } + void setMiscFlag(enum MiscFlags M) { Misc |= M; } + void setPosition(unsigned pos) { Position = pos; } protected: - Option() : NumOccurrences(0), Flags(0), - ArgStr(""), HelpStr(""), ValueStr("") {} + explicit Option(enum NumOccurrencesFlag OccurrencesFlag, + enum OptionHidden Hidden) + : NumOccurrences(0), Occurrences(OccurrencesFlag), Value(0), + HiddenFlag(Hidden), Formatting(NormalFormatting), Misc(0), + Position(0), AdditionalVals(0), NextRegistered(0), + ArgStr(""), HelpStr(""), ValueStr("") { + } + inline void setNumAdditionalVals(unsigned n) { AdditionalVals = n; } 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; + virtual size_t 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 printOptionInfo(size_t GlobalWidth) const = 0; - // addOccurrence - Wrapper around handleOccurrence that enforces Flags + virtual void printOptionValue(size_t GlobalWidth, bool Force) const = 0; + + virtual void getExtraOptionNames(SmallVectorImpl &) {} + + // addOccurrence - Wrapper around handleOccurrence that enforces Flags. // - bool addOccurrence(const char *ArgName, const std::string &Value); + bool addOccurrence(unsigned pos, StringRef ArgName, + StringRef Value, bool MultiArg = false); // Prints option name followed by message. Always returns true. - bool error(std::string Message, const char *ArgName = 0); + bool error(const Twine &Message, StringRef ArgName = StringRef()); public: inline int getNumOccurrences() const { return NumOccurrences; } @@ -235,14 +262,14 @@ public: // command line option parsers... // -// desc - Modifier to set the description shown in the --help output... +// desc - Modifier to set the description shown in the -help output... struct desc { const char *Desc; desc(const char *Str) : Desc(Str) {} void apply(Option &O) const { O.setDescription(Desc); } }; -// value_desc - Modifier to set the value description shown in the --help +// value_desc - Modifier to set the value description shown in the -help // output... struct value_desc { const char *Desc; @@ -250,7 +277,6 @@ struct value_desc { void apply(Option &O) const { O.setValueStr(Desc); } }; - // init - Specify a default (initial) value for the command line argument, if // the default constructor for the argument type does not give you what you // want. This is only valid on "opt" arguments, not on "list" arguments. @@ -287,12 +313,132 @@ template LocationClass location(Ty &L) { return LocationClass(L); } +//===----------------------------------------------------------------------===// +// OptionValue class + +// Support value comparison outside the template. +struct GenericOptionValue { + virtual ~GenericOptionValue() {} + virtual bool compare(const GenericOptionValue &V) const = 0; +private: + virtual void anchor(); +}; + +template struct OptionValue; + +// The default value safely does nothing. Option value printing is only +// best-effort. +template +struct OptionValueBase : public GenericOptionValue { + // Temporary storage for argument passing. + typedef OptionValue WrapperType; + + bool hasValue() const { return false; } + + const DataType &getValue() const { llvm_unreachable("no default value"); } + + // Some options may take their value from a different data type. + template + void setValue(const DT& /*V*/) {} + + bool compare(const DataType &/*V*/) const { return false; } + + virtual bool compare(const GenericOptionValue& /*V*/) const { return false; } +}; + +// Simple copy of the option value. +template +class OptionValueCopy : public GenericOptionValue { + DataType Value; + bool Valid; +public: + OptionValueCopy() : Valid(false) {} + + bool hasValue() const { return Valid; } + + const DataType &getValue() const { + assert(Valid && "invalid option value"); + return Value; + } + + void setValue(const DataType &V) { Valid = true; Value = V; } + + bool compare(const DataType &V) const { + return Valid && (Value != V); + } + + virtual bool compare(const GenericOptionValue &V) const { + const OptionValueCopy &VC = + static_cast< const OptionValueCopy& >(V); + if (!VC.hasValue()) return false; + return compare(VC.getValue()); + } +}; + +// Non-class option values. +template +struct OptionValueBase : OptionValueCopy { + typedef DataType WrapperType; +}; + +// Top-level option class. +template +struct OptionValue : OptionValueBase::value> { + OptionValue() {} + + OptionValue(const DataType& V) { + this->setValue(V); + } + // Some options may take their value from a different data type. + template + OptionValue &operator=(const DT& V) { + this->setValue(V); + return *this; + } +}; + +// Other safe-to-copy-by-value common option types. +enum boolOrDefault { BOU_UNSET, BOU_TRUE, BOU_FALSE }; +template<> +struct OptionValue : OptionValueCopy { + typedef cl::boolOrDefault WrapperType; + + OptionValue() {} + + OptionValue(const cl::boolOrDefault& V) { + this->setValue(V); + } + OptionValue &operator=(const cl::boolOrDefault& V) { + setValue(V); + return *this; + } +private: + virtual void anchor(); +}; + +template<> +struct OptionValue : OptionValueCopy { + typedef StringRef WrapperType; + + OptionValue() {} + + OptionValue(const std::string& V) { + this->setValue(V); + } + OptionValue &operator=(const std::string& V) { + setValue(V); + return *this; + } +private: + virtual void anchor(); +}; + //===----------------------------------------------------------------------===// // 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 @@ -304,34 +450,35 @@ 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))); // Process the varargs portion of the values... - while (const char *EnumName = va_arg(ValueArgs, const char *)) { + while (const char *enumName = va_arg(ValueArgs, const char *)) { DataType EnumVal = static_cast(va_arg(ValueArgs, int)); const char *EnumDesc = va_arg(ValueArgs, const char *); - Values.push_back(std::make_pair(EnumName, // Add value to value map + Values.push_back(std::make_pair(enumName, // Add value to value map std::make_pair(EnumVal, EnumDesc))); } } template void apply(Opt &O) const { - for (unsigned i = 0, e = Values.size(); i != e; ++i) + for (unsigned i = 0, e = static_cast(Values.size()); + i != e; ++i) O.getParser().addLiteralOption(Values[i].first, Values[i].second.first, Values[i].second.second); } }; 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); @@ -339,7 +486,6 @@ ValuesClass values(const char *Arg, DataType Val, const char *Desc, return Vals; } - //===----------------------------------------------------------------------===// // parser class - Parameterizable parser for different data types. By default, // known data types (string, int, bool) have specialized parsers, that do what @@ -352,7 +498,16 @@ ValuesClass values(const char *Arg, DataType Val, const char *Desc, // not need replicated for every instance of the generic parser. This also // allows us to put stuff into CommandLine.cpp // -struct generic_parser_base { +class generic_parser_base { +protected: + class GenericOptionInfo { + public: + GenericOptionInfo(const char *name, const char *helpStr) : + Name(name), HelpStr(helpStr) {} + const char *Name; + const char *HelpStr; + }; +public: virtual ~generic_parser_base() {} // Base class should have virtual-dtor // getNumOptions - Virtual function implemented by generic subclass to @@ -362,33 +517,52 @@ 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; + virtual size_t getOptionWidth(const Option &O) const; + + virtual const GenericOptionValue &getOptionValue(unsigned N) 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(const Option &O, unsigned GlobalWidth) const; + virtual void printOptionInfo(const Option &O, size_t GlobalWidth) const; + + void printGenericOptionDiff(const Option &O, const GenericOptionValue &V, + const GenericOptionValue &Default, + size_t GlobalWidth) const; + + // printOptionDiff - print the value of an option and it's default. + // + // Template definition ensures that the option and default have the same + // DataType (via the same AnyOptionValue). + template + void printOptionDiff(const Option &O, const AnyOptionValue &V, + const AnyOptionValue &Default, + size_t GlobalWidth) const { + printGenericOptionDiff(O, V, Default, GlobalWidth); + } void initialize(Option &O) { // All of the modifiers for the option have been processed by now, so the // argstr field should be stable, copy it down now. // hasArgStr = O.hasArgStr(); + } + void getExtraOptionNames(SmallVectorImpl &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: // @@ -419,52 +593,64 @@ protected: // Default parser implementation - This implementation depends on having a // mapping of recognized options to values of some sort. In addition to this, // each entry in the mapping also tracks a help message that is printed with the -// command line option for --help. Because this is a simple mapping parser, the +// command line option for -help. Because this is a simple mapping parser, the // data type can be any unsupported type. // template class parser : public generic_parser_base { protected: - std::vector > > Values; + class OptionInfo : public GenericOptionInfo { + public: + OptionInfo(const char *name, DataType v, const char *helpStr) : + GenericOptionInfo(name, helpStr), V(v) {} + OptionValue V; + }; + SmallVector Values; public: typedef DataType parser_data_type; // Implement virtual functions needed by generic_parser_base - unsigned getNumOptions() const { return Values.size(); } - const char *getOption(unsigned N) const { return Values[N].first; } + unsigned getNumOptions() const { return unsigned(Values.size()); } + const char *getOption(unsigned N) const { return Values[N].Name; } const char *getDescription(unsigned N) const { - return Values[N].second.second; + return Values[N].HelpStr; + } + + // getOptionValue - Return the value of option name N. + virtual const GenericOptionValue &getOptionValue(unsigned N) const { + return Values[N].V; } // parse - Return true on error. - bool parse(Option &O, const char *ArgName, const std::string &Arg, - DataType &V) { - std::string ArgVal; + bool parse(Option &O, StringRef ArgName, StringRef Arg, DataType &V) { + StringRef ArgVal; if (hasArgStr) ArgVal = Arg; else ArgVal = ArgName; - for (unsigned i = 0, e = Values.size(); i != e; ++i) - if (ArgVal == Values[i].first) { - V = Values[i].second.first; + for (unsigned i = 0, e = static_cast(Values.size()); + i != e; ++i) + if (Values[i].Name == ArgVal) { + V = Values[i].V.getValue(); return false; } - return O.error(": Cannot find option named '" + ArgVal + "'!"); + 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))); + OptionInfo X(Name, static_cast(V), HelpStr); + Values.push_back(X); + 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!"); @@ -475,127 +661,309 @@ public: //-------------------------------------------------- // basic_parser - Super class of parsers to provide boilerplate code // -struct basic_parser_impl { // non-template implementation of basic_parser +class basic_parser_impl { // non-template implementation of basic_parser +public: virtual ~basic_parser_impl() {} enum ValueExpected getValueExpectedFlagDefault() const { return ValueRequired; } - - void initialize(Option &O) {} - + + void getExtraOptionNames(SmallVectorImpl &) {} + + void initialize(Option &) {} + // Return the width of the option tag for printing... - unsigned getOptionWidth(const Option &O) const; - + size_t getOptionWidth(const Option &O) const; + // printOptionInfo - Print out information about this option. The // to-be-maintained width is specified. // - void printOptionInfo(const Option &O, unsigned GlobalWidth) const; + void printOptionInfo(const Option &O, size_t GlobalWidth) const; + // printOptionNoValue - Print a placeholder for options that don't yet support + // printOptionDiff(). + void printOptionNoValue(const Option &O, size_t GlobalWidth) const; // 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(); + +protected: + // A helper for basic_parser::printOptionDiff. + void printOptionName(const Option &O, size_t GlobalWidth) const; }; // basic_parser - The real basic parser is just a template wrapper that provides // a typedef for the provided data type. // template -struct basic_parser : public basic_parser_impl { +class basic_parser : public basic_parser_impl { +public: typedef DataType parser_data_type; + typedef OptionValue OptVal; }; - //-------------------------------------------------- // parser // template<> -struct parser : public basic_parser { +class parser : public basic_parser { + const char *ArgStr; +public: + + // parse - Return true on error. + bool parse(Option &O, StringRef ArgName, StringRef Arg, bool &Val); + + template + void initialize(Opt &O) { + ArgStr = O.ArgStr; + } + enum ValueExpected getValueExpectedFlagDefault() const { + return ValueOptional; + } + + // getValueName - Do not print = at all. + virtual const char *getValueName() const { return 0; } + + void printOptionDiff(const Option &O, bool V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); +}; + +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); + +//-------------------------------------------------- +// parser +template<> +class parser : public basic_parser { +public: // parse - Return true on error. - bool parse(Option &O, const char *ArgName, const std::string &Arg, bool &Val); + bool parse(Option &O, StringRef ArgName, StringRef Arg, boolOrDefault &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; } + + void printOptionDiff(const Option &O, boolOrDefault V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); //-------------------------------------------------- // parser // template<> -struct parser : public basic_parser { - +class parser : public basic_parser { +public: // parse - Return true on error. - bool parse(Option &O, const char *ArgName, const std::string &Arg, int &Val); + bool parse(Option &O, StringRef ArgName, StringRef Arg, int &Val); // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "int"; } + + void printOptionDiff(const Option &O, int V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); + //-------------------------------------------------- // parser // template<> -struct parser : public basic_parser { - +class parser : public basic_parser { +public: + // parse - Return true on error. + bool parse(Option &O, StringRef ArgName, StringRef Arg, unsigned &Val); + + // getValueName - Overload in subclass to provide a better default value. + virtual const char *getValueName() const { return "uint"; } + + void printOptionDiff(const Option &O, unsigned V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); +}; + +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); + +//-------------------------------------------------- +// parser +// +template<> +class parser : public basic_parser { +public: // parse - Return true on error. - bool parse(Option &O, const char *ArgName, const std::string &Arg, - unsigned &Val); + bool parse(Option &O, StringRef ArgName, StringRef Arg, + unsigned long long &Val); // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "uint"; } + + void printOptionDiff(const Option &O, unsigned long long V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); //-------------------------------------------------- // parser // template<> -struct parser : public basic_parser { +class parser : public basic_parser { +public: // parse - Return true on error. - bool parse(Option &O, const char *AN, const std::string &Arg, double &Val); + bool parse(Option &O, StringRef ArgName, StringRef Arg, double &Val); // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "number"; } + + void printOptionDiff(const Option &O, double V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); //-------------------------------------------------- // parser // template<> -struct parser : public basic_parser { +class parser : public basic_parser { +public: // parse - Return true on error. - bool parse(Option &O, const char *AN, const std::string &Arg, float &Val); + bool parse(Option &O, StringRef ArgName, StringRef Arg, float &Val); // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "number"; } + + void printOptionDiff(const Option &O, float V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); }; +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); //-------------------------------------------------- // parser // template<> -struct parser : public basic_parser { +class parser : public basic_parser { +public: // parse - Return true on error. - bool parse(Option &O, const char *ArgName, const std::string &Arg, - std::string &Value) { - Value = Arg; + bool parse(Option &, StringRef, StringRef Arg, std::string &Value) { + Value = Arg.str(); return false; } // getValueName - Overload in subclass to provide a better default value. virtual const char *getValueName() const { return "string"; } + + void printOptionDiff(const Option &O, StringRef V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); +}; + +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); + +//-------------------------------------------------- +// parser +// +template<> +class parser : public basic_parser { +public: + // parse - Return true on error. + bool parse(Option &, StringRef, StringRef Arg, char &Value) { + Value = Arg[0]; + return false; + } + + // getValueName - Overload in subclass to provide a better default value. + virtual const char *getValueName() const { return "char"; } + + void printOptionDiff(const Option &O, char V, OptVal Default, + size_t GlobalWidth) const; + + // An out-of-line virtual method to provide a 'home' for this class. + virtual void anchor(); +}; + +EXTERN_TEMPLATE_INSTANTIATION(class basic_parser); + +//-------------------------------------------------- +// PrintOptionDiff +// +// This collection of wrappers is the intermediary between class opt and class +// parser to handle all the template nastiness. + +// This overloaded function is selected by the generic parser. +template +void printOptionDiff(const Option &O, const generic_parser_base &P, const DT &V, + const OptionValue
&Default, size_t GlobalWidth) { + OptionValue
OV = V; + P.printOptionDiff(O, OV, Default, GlobalWidth); +} + +// This is instantiated for basic parsers when the parsed value has a different +// type than the option value. e.g. HelpPrinter. +template +struct OptionDiffPrinter { + void print(const Option &O, const parser P, const ValDT &/*V*/, + const OptionValue &/*Default*/, size_t GlobalWidth) { + P.printOptionNoValue(O, GlobalWidth); + } }; +// This is instantiated for basic parsers when the parsed value has the same +// type as the option value. +template +struct OptionDiffPrinter { + void print(const Option &O, const parser
P, const DT &V, + const OptionValue
&Default, size_t GlobalWidth) { + P.printOptionDiff(O, V, Default, GlobalWidth); + } +}; +// This overloaded function is selected by the basic parser, which may parse a +// different type than the option type. +template +void printOptionDiff( + const Option &O, + const basic_parser &P, + const ValDT &V, const OptionValue &Default, + size_t GlobalWidth) { + + OptionDiffPrinter printer; + printer.print(O, static_cast(P), V, Default, + GlobalWidth); +} //===----------------------------------------------------------------------===// // applicator class - This class is used because we must use partial @@ -622,8 +990,10 @@ template<> struct applicator { static void opt(const char *Str, Opt &O) { O.setArgStr(Str); } }; -template<> struct applicator { - static void opt(NumOccurrences NO, Option &O) { O.setNumOccurrencesFlag(NO); } +template<> struct applicator { + static void opt(NumOccurrencesFlag NO, Option &O) { + O.setNumOccurrencesFlag(NO); + } }; template<> struct applicator { static void opt(ValueExpected VE, Option &O) { O.setValueExpectedFlag(VE); } @@ -644,7 +1014,6 @@ void apply(const Mod &M, Opt *O) { applicator::opt(M, *O); } - //===----------------------------------------------------------------------===// // opt_storage class @@ -655,8 +1024,9 @@ void apply(const Mod &M, Opt *O) { template class opt_storage { DataType *Location; // Where to store the object... + OptionValue Default; - void check() { + void check() const { assert(Location != 0 && "cl::location(...) not specified for a command " "line option with external storage, " "or cl::init specified before cl::location()!!"); @@ -666,34 +1036,48 @@ public: bool setLocation(Option &O, DataType &L) { if (Location) - return O.error(": cl::location(x) specified more than once!"); + return O.error("cl::location(x) specified more than once!"); Location = &L; + Default = L; return false; } template - void setValue(const T &V) { + void setValue(const T &V, bool initial = false) { check(); *Location = V; + if (initial) + Default = V; } DataType &getValue() { check(); return *Location; } const DataType &getValue() const { check(); return *Location; } -}; + operator DataType() const { return this->getValue(); } + + const OptionValue &getDefault() const { return Default; } +}; // Define how to hold a class type object, such as a string. Since we can // inherit from a class, we do so. This makes us exactly compatible with the // object in all cases that it is used. // template -struct opt_storage : public DataType { +class opt_storage : public DataType { +public: + OptionValue Default; template - void setValue(const T &V) { DataType::operator=(V); } + void setValue(const T &V, bool initial = false) { + DataType::operator=(V); + if (initial) + Default = V; + } DataType &getValue() { return *this; } const DataType &getValue() const { return *this; } + + const OptionValue &getDefault() const { return Default; } }; // Define a partial specialization to handle things we cannot inherit from. In @@ -701,18 +1085,28 @@ struct opt_storage : public DataType { // to get at the value. // template -struct opt_storage { +class opt_storage { +public: DataType Value; + OptionValue Default; // Make sure we initialize the value with the default constructor for the // type. opt_storage() : Value(DataType()) {} template - void setValue(const T &V) { Value = V; } + void setValue(const T &V, bool initial = false) { + Value = V; + if (initial) + Default = V; + } DataType &getValue() { return Value; } DataType getValue() const { return Value; } + const OptionValue &getDefault() const { return Default; } + + operator DataType() const { return getValue(); } + // If the datatype is a pointer, support -> on it. DataType operator->() const { return Value; } }; @@ -723,41 +1117,52 @@ struct opt_storage { // template > -class opt : public Option, +class opt : public Option, public opt_storage::value> { ParserClass Parser; - virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) { - typename ParserClass::parser_data_type Val; + virtual bool handleOccurrence(unsigned pos, StringRef ArgName, + StringRef Arg) { + typename ParserClass::parser_data_type Val = + typename ParserClass::parser_data_type(); if (Parser.parse(*this, ArgName, Arg, Val)) return true; // Parse error! - setValue(Val); + this->setValue(Val); + this->setPosition(pos); return false; } virtual enum ValueExpected getValueExpectedFlagDefault() const { return Parser.getValueExpectedFlagDefault(); } + virtual void getExtraOptionNames(SmallVectorImpl &OptionNames) { + return Parser.getExtraOptionNames(OptionNames); + } // Forward printing stuff to the parser... - virtual unsigned getOptionWidth() const {return Parser.getOptionWidth(*this);} - virtual void printOptionInfo(unsigned GlobalWidth) const { + virtual size_t getOptionWidth() const {return Parser.getOptionWidth(*this);} + virtual void printOptionInfo(size_t GlobalWidth) const { Parser.printOptionInfo(*this, GlobalWidth); } + virtual void printOptionValue(size_t GlobalWidth, bool Force) const { + if (Force || this->getDefault().compare(this->getValue())) { + cl::printOptionDiff( + *this, Parser, this->getValue(), this->getDefault(), GlobalWidth); + } + } + void done() { - addArgument(ArgStr); + addArgument(); Parser.initialize(*this); } public: // setInitialValue - Used by the cl::init modifier... - void setInitialValue(const DataType &V) { this->setValue(V); } + void setInitialValue(const DataType &V) { this->setValue(V, true); } ParserClass &getParser() { return Parser; } - operator DataType() const { return this->getValue(); } - template DataType &operator=(const T &Val) { this->setValue(Val); @@ -766,34 +1171,36 @@ 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(); @@ -802,7 +1209,7 @@ 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(); @@ -811,7 +1218,8 @@ 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(); @@ -820,13 +1228,20 @@ 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); +EXTERN_TEMPLATE_INSTANTIATION(class opt); + //===----------------------------------------------------------------------===// // list_storage class @@ -843,7 +1258,7 @@ public: bool setLocation(Option &O, StorageClass &L) { if (Location) - return O.error(": cl::location(x) specified more than once!"); + return O.error("cl::location(x) specified more than once!"); Location = &L; return false; } @@ -862,10 +1277,10 @@ public: // object in all cases that it is used. // template -struct list_storage : public std::vector { - +class list_storage : public std::vector { +public: template - void addValue(const T &V) { push_back(V); } + void addValue(const T &V) { std::vector::push_back(V); } }; @@ -875,64 +1290,82 @@ struct list_storage : public std::vector { template > 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 void getExtraOptionNames(SmallVectorImpl &OptionNames) { + return Parser.getExtraOptionNames(OptionNames); + } - virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) { - typename ParserClass::parser_data_type Val; + virtual bool handleOccurrence(unsigned pos, StringRef ArgName, StringRef 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); + list_storage::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 { + virtual size_t getOptionWidth() const {return Parser.getOptionWidth(*this);} + virtual void printOptionInfo(size_t GlobalWidth) const { Parser.printOptionInfo(*this, GlobalWidth); } + // Unimplemented: list options don't currently store their default value. + virtual void printOptionValue(size_t /*GlobalWidth*/, bool /*Force*/) const {} + void done() { - addArgument(ArgStr); + addArgument(); Parser.initialize(*this); } public: ParserClass &getParser() { return Parser; } + unsigned getPosition(unsigned optnum) const { + assert(optnum < this->size() && "Invalid option index"); + return Positions[optnum]; + } + + void setNumAdditionalVals(unsigned n) { + Option::setNumAdditionalVals(n); + } + // 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(); @@ -941,7 +1374,7 @@ 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(); @@ -950,7 +1383,8 @@ 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(); @@ -959,67 +1393,267 @@ 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(); } }; +// multi_val - Modifier to set the number of additional values. +struct multi_val { + unsigned AdditionalVals; + explicit multi_val(unsigned N) : AdditionalVals(N) {} + + template + void apply(list &L) const { L.setNumAdditionalVals(AdditionalVals); } +}; + + +//===----------------------------------------------------------------------===// +// 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) * CHAR_BIT && + "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 = (unsigned)V; + assert(BitPos < sizeof(unsigned) * CHAR_BIT && + "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(SmallVectorImpl &OptionNames) { + return Parser.getExtraOptionNames(OptionNames); + } + + virtual bool handleOccurrence(unsigned pos, StringRef ArgName, StringRef 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 size_t getOptionWidth() const {return Parser.getOptionWidth(*this);} + virtual void printOptionInfo(size_t GlobalWidth) const { + Parser.printOptionInfo(*this, GlobalWidth); + } + + // Unimplemented: bits options don't currently store their default values. + virtual void printOptionValue(size_t /*GlobalWidth*/, bool /*Force*/) const {} + + 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(); + } +}; + //===----------------------------------------------------------------------===// // Aliased command line option (alias this name to a preexisting name) // class alias : public Option { Option *AliasFor; - virtual bool handleOccurrence(const char *ArgName, const std::string &Arg) { - return AliasFor->handleOccurrence(AliasFor->ArgStr, Arg); + virtual bool handleOccurrence(unsigned pos, StringRef /*ArgName*/, + StringRef Arg) LLVM_OVERRIDE { + 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; + virtual size_t getOptionWidth() const LLVM_OVERRIDE; + virtual void printOptionInfo(size_t GlobalWidth) const LLVM_OVERRIDE; + + // Aliases do not need to print their values. + virtual void printOptionValue(size_t /*GlobalWidth*/, + bool /*Force*/) const LLVM_OVERRIDE {} void done() { if (!hasArgStr()) - error(": cl::alias must have argument name specified!"); + error("cl::alias must have argument name specified!"); if (AliasFor == 0) - error(": cl::alias must have an cl::aliasopt(option) specified!"); - addArgument(ArgStr); + error("cl::alias must have an cl::aliasopt(option) specified!"); + addArgument(); } public: void setAliasFor(Option &O) { if (AliasFor) - error(": cl::alias must only have one cl::aliasopt(...) specified!"); + error("cl::alias must only have one cl::aliasopt(...) specified!"); AliasFor = &O; } // 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(); } @@ -1028,10 +1662,25 @@ 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); } }; +// extrahelp - provide additional help at the end of the normal help +// output. All occurrences of cl::extrahelp will be accumulated and +// printed to stderr at the end of the regular help, just before +// exit is called. +struct extrahelp { + const char * morehelp; + explicit 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! +void PrintHelpMessage(); + } // End namespace cl } // End namespace llvm