-//===- 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
//
//===----------------------------------------------------------------------===//
-#ifndef SUPPORT_COMMANDLINE_H
-#define SUPPORT_COMMANDLINE_H
+#ifndef LLVM_SUPPORT_COMMANDLINE_H
+#define LLVM_SUPPORT_COMMANDLINE_H
-#include "Support/type_traits.h"
-#include <string>
-#include <vector>
-#include <utility>
-#include <cstdarg>
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/type_traits.h"
#include <cassert>
+#include <climits>
+#include <cstdarg>
+#include <utility>
+#include <vector>
namespace llvm {
//===----------------------------------------------------------------------===//
// 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);
//===----------------------------------------------------------------------===//
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
// 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
//
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?
};
//
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<enum NumOccurrences>(NO)
- : getNumOccurrencesFlagDefault();
+ inline enum NumOccurrencesFlag getNumOccurrencesFlag() const {
+ return (enum NumOccurrencesFlag)Occurrences;
}
inline enum ValueExpected getValueExpectedFlag() const {
- int VE = Flags & ValueMask;
- return VE ? static_cast<enum ValueExpected>(VE)
+ return Value ? ((enum ValueExpected)Value)
: getValueExpectedFlagDefault();
}
inline enum OptionHidden getOptionHiddenFlag() const {
- int OH = Flags & HiddenMask;
- return OH ? static_cast<enum OptionHidden>(OH)
- : getOptionHiddenFlagDefault();
+ return (enum OptionHidden)HiddenFlag;
}
inline enum FormattingFlags getFormattingFlag() const {
- int OH = Flags & FormattingMask;
- return OH ? static_cast<enum FormattingFlags>(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; }
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;
+
+ virtual void printOptionValue(size_t GlobalWidth, bool Force) const = 0;
+
+ virtual void getExtraOptionNames(SmallVectorImpl<const char*> &) {}
- // addOccurrence - Wrapper around handleOccurrence that enforces Flags
+ // 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; }
// 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;
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.
LocationClass<Ty> location(Ty &L) { return LocationClass<Ty>(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<class DataType> struct OptionValue;
+
+// The default value safely does nothing. Option value printing is only
+// best-effort.
+template<class DataType, bool isClass>
+struct OptionValueBase : public GenericOptionValue {
+ // Temporary storage for argument passing.
+ typedef OptionValue<DataType> 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<class DT>
+ 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 DataType>
+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<DataType> &VC =
+ static_cast< const OptionValueCopy<DataType>& >(V);
+ if (!VC.hasValue()) return false;
+ return compare(VC.getValue());
+ }
+};
+
+// Non-class option values.
+template<class DataType>
+struct OptionValueBase<DataType, false> : OptionValueCopy<DataType> {
+ typedef DataType WrapperType;
+};
+
+// Top-level option class.
+template<class DataType>
+struct OptionValue : OptionValueBase<DataType, is_class<DataType>::value> {
+ OptionValue() {}
+
+ OptionValue(const DataType& V) {
+ this->setValue(V);
+ }
+ // Some options may take their value from a different data type.
+ template<class DT>
+ OptionValue<DataType> &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<cl::boolOrDefault> : OptionValueCopy<cl::boolOrDefault> {
+ typedef cl::boolOrDefault WrapperType;
+
+ OptionValue() {}
+
+ OptionValue(const cl::boolOrDefault& V) {
+ this->setValue(V);
+ }
+ OptionValue<cl::boolOrDefault> &operator=(const cl::boolOrDefault& V) {
+ setValue(V);
+ return *this;
+ }
+private:
+ virtual void anchor();
+};
+
+template<>
+struct OptionValue<std::string> : OptionValueCopy<std::string> {
+ typedef StringRef WrapperType;
+
+ OptionValue() {}
+
+ OptionValue(const std::string& V) {
+ this->setValue(V);
+ }
+ OptionValue<std::string> &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<void*>(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
// 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<std::pair<const char *, std::pair<int, const char *> > > Values;
+ SmallVector<std::pair<const char *, std::pair<int, const char *> >,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<DataType>(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<class Opt>
void apply(Opt &O) const {
- for (unsigned i = 0, e = Values.size(); i != e; ++i)
+ for (unsigned i = 0, e = static_cast<unsigned>(Values.size());
+ i != e; ++i)
O.getParser().addLiteralOption(Values[i].first, Values[i].second.first,
Values[i].second.second);
}
};
template<class DataType>
-ValuesClass<DataType> values(const char *Arg, DataType Val, const char *Desc,
- ...) {
+ValuesClass<DataType> END_WITH_NULL values(const char *Arg, DataType Val,
+ const char *Desc, ...) {
va_list ValueArgs;
va_start(ValueArgs, Desc);
ValuesClass<DataType> Vals(Arg, Val, Desc, ValueArgs);
return Vals;
}
-
//===----------------------------------------------------------------------===//
// parser class - Parameterizable parser for different data types. By default,
// known data types (string, int, bool) have specialized parsers, that do what
// 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
// 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;
- // printOptionInfo - Print out information about this option. The
+ virtual const GenericOptionValue &getOptionValue(unsigned N) const = 0;
+
+ // 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<class AnyOptionValue>
+ 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<const char*> &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:
//
// 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 DataType>
class parser : public generic_parser_base {
protected:
- std::vector<std::pair<const char *,
- std::pair<DataType, const char *> > > Values;
+ class OptionInfo : public GenericOptionInfo {
+ public:
+ OptionInfo(const char *name, DataType v, const char *helpStr) :
+ GenericOptionInfo(name, helpStr), V(v) {}
+ OptionValue<DataType> V;
+ };
+ SmallVector<OptionInfo, 8> 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<unsigned>(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 <class DT>
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<DataType>(V),HelpStr)));
+ OptionInfo X(Name, static_cast<DataType>(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!");
//--------------------------------------------------
// basic_parser - Super class of parsers to provide boilerplate code
//
-struct basic_parser_impl { // non-template implementation of basic_parser<t>
+class basic_parser_impl { // non-template implementation of basic_parser<t>
+public:
virtual ~basic_parser_impl() {}
enum ValueExpected getValueExpectedFlagDefault() const {
return ValueRequired;
}
-
- void initialize(Option &O) {}
-
+
+ void getExtraOptionNames(SmallVectorImpl<const char*> &) {}
+
+ 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<class DataType>
-struct basic_parser : public basic_parser_impl {
+class basic_parser : public basic_parser_impl {
+public:
typedef DataType parser_data_type;
+ typedef OptionValue<DataType> OptVal;
};
-
//--------------------------------------------------
// parser<bool>
//
template<>
-struct parser<bool> : public basic_parser<bool> {
+class parser<bool> : public basic_parser<bool> {
+ const char *ArgStr;
+public:
+
+ // parse - Return true on error.
+ bool parse(Option &O, StringRef ArgName, StringRef Arg, bool &Val);
+
+ template <class Opt>
+ void initialize(Opt &O) {
+ ArgStr = O.ArgStr;
+ }
+
+ enum ValueExpected getValueExpectedFlagDefault() const {
+ return ValueOptional;
+ }
+
+ // getValueName - Do not print =<value> 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<bool>);
+
+//--------------------------------------------------
+// parser<boolOrDefault>
+template<>
+class parser<boolOrDefault> : public basic_parser<boolOrDefault> {
+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 =<value> at all
+ // getValueName - Do not print =<value> 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<boolOrDefault>);
//--------------------------------------------------
// parser<int>
//
template<>
-struct parser<int> : public basic_parser<int> {
-
+class parser<int> : public basic_parser<int> {
+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<int>);
+
//--------------------------------------------------
// parser<unsigned>
//
template<>
-struct parser<unsigned> : public basic_parser<unsigned> {
-
+class parser<unsigned> : public basic_parser<unsigned> {
+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<unsigned>);
+
+//--------------------------------------------------
+// parser<unsigned long long>
+//
+template<>
+class parser<unsigned long long> : public basic_parser<unsigned long long> {
+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<unsigned long long>);
//--------------------------------------------------
// parser<double>
//
template<>
-struct parser<double> : public basic_parser<double> {
+class parser<double> : public basic_parser<double> {
+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<double>);
//--------------------------------------------------
// parser<float>
//
template<>
-struct parser<float> : public basic_parser<float> {
+class parser<float> : public basic_parser<float> {
+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<float>);
//--------------------------------------------------
// parser<std::string>
//
template<>
-struct parser<std::string> : public basic_parser<std::string> {
+class parser<std::string> : public basic_parser<std::string> {
+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<std::string>);
+
+//--------------------------------------------------
+// parser<char>
+//
+template<>
+class parser<char> : public basic_parser<char> {
+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<char>);
+
+//--------------------------------------------------
+// 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<class ParserClass, class DT>
+void printOptionDiff(const Option &O, const generic_parser_base &P, const DT &V,
+ const OptionValue<DT> &Default, size_t GlobalWidth) {
+ OptionValue<DT> 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<class ParserDT, class ValDT>
+struct OptionDiffPrinter {
+ void print(const Option &O, const parser<ParserDT> P, const ValDT &/*V*/,
+ const OptionValue<ValDT> &/*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<class DT>
+struct OptionDiffPrinter<DT, DT> {
+ void print(const Option &O, const parser<DT> P, const DT &V,
+ const OptionValue<DT> &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<class ParserClass, class ValDT>
+void printOptionDiff(
+ const Option &O,
+ const basic_parser<typename ParserClass::parser_data_type> &P,
+ const ValDT &V, const OptionValue<ValDT> &Default,
+ size_t GlobalWidth) {
+
+ OptionDiffPrinter<typename ParserClass::parser_data_type, ValDT> printer;
+ printer.print(O, static_cast<const ParserClass&>(P), V, Default,
+ GlobalWidth);
+}
//===----------------------------------------------------------------------===//
// applicator class - This class is used because we must use partial
static void opt(const char *Str, Opt &O) { O.setArgStr(Str); }
};
-template<> struct applicator<NumOccurrences> {
- static void opt(NumOccurrences NO, Option &O) { O.setNumOccurrencesFlag(NO); }
+template<> struct applicator<NumOccurrencesFlag> {
+ static void opt(NumOccurrencesFlag NO, Option &O) {
+ O.setNumOccurrencesFlag(NO);
+ }
};
template<> struct applicator<ValueExpected> {
static void opt(ValueExpected VE, Option &O) { O.setValueExpectedFlag(VE); }
applicator<Mod>::opt(M, *O);
}
-
//===----------------------------------------------------------------------===//
// opt_storage class
template<class DataType, bool ExternalStorage, bool isClass>
class opt_storage {
DataType *Location; // Where to store the object...
+ OptionValue<DataType> 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()!!");
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<class T>
- 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<DataType> &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<class DataType>
-struct opt_storage<DataType,false,true> : public DataType {
+class opt_storage<DataType,false,true> : public DataType {
+public:
+ OptionValue<DataType> Default;
template<class T>
- 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<DataType> &getDefault() const { return Default; }
};
// Define a partial specialization to handle things we cannot inherit from. In
// to get at the value.
//
template<class DataType>
-struct opt_storage<DataType, false, false> {
+class opt_storage<DataType, false, false> {
+public:
DataType Value;
+ OptionValue<DataType> Default;
// Make sure we initialize the value with the default constructor for the
// type.
opt_storage() : Value(DataType()) {}
template<class T>
- 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<DataType> &getDefault() const { return Default; }
+
+ operator DataType() const { return getValue(); }
+
// If the datatype is a pointer, support -> on it.
DataType operator->() const { return Value; }
};
//
template <class DataType, bool ExternalStorage = false,
class ParserClass = parser<DataType> >
-class opt : public Option,
+class opt : public Option,
public opt_storage<DataType, ExternalStorage,
is_class<DataType>::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<const char*> &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<ParserClass>(
+ *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<class T>
DataType &operator=(const T &Val) {
this->setValue(Val);
// One option...
template<class M0t>
- opt(const M0t &M0) {
+ explicit opt(const M0t &M0) : Option(Optional, NotHidden) {
apply(M0, this);
done();
}
// Two options...
template<class M0t, class M1t>
- 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<class M0t, class M1t, class M2t>
- 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<class M0t, class M1t, class M2t, class M3t>
- 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<class M0t, class M1t, class M2t, class M3t, class M4t>
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();
template<class M0t, class M1t, class M2t, class M3t,
class M4t, class M5t>
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();
template<class M0t, class M1t, class M2t, class M3t,
class M4t, class M5t, class M6t>
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();
template<class M0t, class M1t, class M2t, class M3t,
class M4t, class M5t, class M6t, class M7t>
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<unsigned>);
+EXTERN_TEMPLATE_INSTANTIATION(class opt<int>);
+EXTERN_TEMPLATE_INSTANTIATION(class opt<std::string>);
+EXTERN_TEMPLATE_INSTANTIATION(class opt<char>);
+EXTERN_TEMPLATE_INSTANTIATION(class opt<bool>);
+
//===----------------------------------------------------------------------===//
// list_storage class
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;
}
// object in all cases that it is used.
//
template<class DataType>
-struct list_storage<DataType, bool> : public std::vector<DataType> {
-
+class list_storage<DataType, bool> : public std::vector<DataType> {
+public:
template<class T>
- void addValue(const T &V) { push_back(V); }
+ void addValue(const T &V) { std::vector<DataType>::push_back(V); }
};
template <class DataType, class Storage = bool,
class ParserClass = parser<DataType> >
class list : public Option, public list_storage<DataType, Storage> {
+ std::vector<unsigned> Positions;
ParserClass Parser;
- virtual enum NumOccurrences getNumOccurrencesFlagDefault() const {
- return ZeroOrMore;
- }
virtual enum ValueExpected getValueExpectedFlagDefault() const {
return Parser.getValueExpectedFlagDefault();
}
+ virtual void getExtraOptionNames(SmallVectorImpl<const char*> &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<DataType, 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<class M0t>
- list(const M0t &M0) {
+ explicit list(const M0t &M0) : Option(ZeroOrMore, NotHidden) {
apply(M0, this);
done();
}
// Two options...
template<class M0t, class M1t>
- 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<class M0t, class M1t, class M2t>
- 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<class M0t, class M1t, class M2t, class M3t>
- 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<class M0t, class M1t, class M2t, class M3t, class M4t>
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();
template<class M0t, class M1t, class M2t, class M3t,
class M4t, class M5t>
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();
template<class M0t, class M1t, class M2t, class M3t,
class M4t, class M5t, class M6t>
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();
template<class M0t, class M1t, class M2t, class M3t,
class M4t, class M5t, class M6t, class M7t>
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 <typename D, typename S, typename P>
+ void apply(list<D, S, P> &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 DataType, class StorageClass>
+class bits_storage {
+ unsigned *Location; // Where to store the bits...
+
+ template<class T>
+ static unsigned Bit(const T &V) {
+ unsigned BitPos = reinterpret_cast<unsigned>(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<class T>
+ 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<class T>
+ 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 DataType>
+class bits_storage<DataType, bool> {
+ unsigned Bits; // Where to store the bits...
+
+ template<class T>
+ 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<class T>
+ void addValue(const T &V) {
+ Bits |= Bit(V);
+ }
+
+ unsigned getBits() { return Bits; }
+
+ template<class T>
+ bool isSet(const T &V) {
+ return (Bits & Bit(V)) != 0;
+ }
+};
+
+
+//===----------------------------------------------------------------------===//
+// bits - A bit vector of command options.
+//
+template <class DataType, class Storage = bool,
+ class ParserClass = parser<DataType> >
+class bits : public Option, public bits_storage<DataType, Storage> {
+ std::vector<unsigned> Positions;
+ ParserClass Parser;
+
+ virtual enum ValueExpected getValueExpectedFlagDefault() const {
+ return Parser.getValueExpectedFlagDefault();
+ }
+ virtual void getExtraOptionNames(SmallVectorImpl<const char*> &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!
+ this->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<class M0t>
+ explicit bits(const M0t &M0) : Option(ZeroOrMore, NotHidden) {
+ apply(M0, this);
+ done();
+ }
+ // Two options...
+ template<class M0t, class M1t>
+ bits(const M0t &M0, const M1t &M1) : Option(ZeroOrMore, NotHidden) {
+ apply(M0, this); apply(M1, this);
+ done();
+ }
+ // Three options...
+ template<class M0t, class M1t, class M2t>
+ 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<class M0t, class M1t, class M2t, class M3t>
+ 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<class M0t, class M1t, class M2t, class M3t, class M4t>
+ 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<class M0t, class M1t, class M2t, class M3t,
+ class M4t, class M5t>
+ 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<class M0t, class M1t, class M2t, class M3t,
+ class M4t, class M5t, class M6t>
+ 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<class M0t, class M1t, class M2t, class M3t,
+ class M4t, class M5t, class M6t, class M7t>
+ 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<class M0t>
- alias(const M0t &M0) : AliasFor(0) {
+ explicit alias(const M0t &M0) : Option(Optional, Hidden), AliasFor(0) {
apply(M0, this);
done();
}
// Two options...
template<class M0t, class M1t>
- 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<class M0t, class M1t, class M2t>
- 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<class M0t, class M1t, class M2t, class M3t>
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();
}
// 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
projects / oota-llvm.git / blobdiff