llvm::cl Namespace Reference

This namespace contains all of the command line option processing machinery. More...

Namespaces
namespace	detail

Classes
class	alias
struct	aliasopt
struct	applicator
struct	applicator< char[n]>
struct	applicator< const char[n]>
struct	applicator< FormattingFlags >
struct	applicator< MiscFlags >
struct	applicator< NumOccurrencesFlag >
struct	applicator< OptionHidden >
struct	applicator< StringRef >
struct	applicator< ValueExpected >
class	basic_parser
class	basic_parser_impl
class	bits
class	bits_storage
class	bits_storage< DataType, bool >
struct	cat
struct	cb
struct	desc
class	ExpansionContext
	Contains options that control response file expansion. More...
struct	extrahelp
class	generic_parser_base
struct	GenericOptionValue
struct	initializer
class	list
struct	list_initializer
class	list_storage
class	list_storage< DataType, bool >
struct	LocationClass
struct	multi_val
class	opt
class	opt_storage
class	opt_storage< DataType, false, false >
class	opt_storage< DataType, false, true >
class	Option
class	OptionCategory
struct	OptionDiffPrinter
struct	OptionDiffPrinter< DT, DT >
struct	OptionEnumValue
struct	OptionValue
struct	OptionValue< cl::boolOrDefault >
struct	OptionValue< std::string >
struct	OptionValueBase
struct	OptionValueBase< DataType, false >
class	OptionValueCopy
class	parser
class	parser< bool >
class	parser< boolOrDefault >
class	parser< char >
class	parser< double >
class	parser< float >
class	parser< int >
class	parser< long >
class	parser< long long >
class	parser< std::string >
class	parser< unsigned >
class	parser< unsigned long >
class	parser< unsigned long long >
struct	sub
class	SubCommand
struct	value_desc
class	ValuesClass

Typedefs
using	VersionPrinterTy = std::function< void(raw_ostream &)>
using	TokenizerCallback = void(*)(StringRef Source, StringSaver &Saver, SmallVectorImpl< const char * > &NewArgv, bool MarkEOLs)
	String tokenization function type.

Enumerations
enum	NumOccurrencesFlag {   Optional = 0x00 , ZeroOrMore = 0x01 , Required = 0x02 , OneOrMore = 0x03 ,   ConsumeAfter = 0x04 }
enum	ValueExpected { ValueOptional = 0x01 , ValueRequired = 0x02 , ValueDisallowed = 0x03 }
enum	OptionHidden { NotHidden = 0x00 , Hidden = 0x01 , ReallyHidden = 0x02 }
enum	FormattingFlags { NormalFormatting = 0x00 , Positional = 0x01 , Prefix = 0x02 , AlwaysPrefix = 0x03 }
enum	MiscFlags {   CommaSeparated = 0x01 , PositionalEatsArgs = 0x02 , Sink = 0x04 , Grouping = 0x08 ,   DefaultOption = 0x10 }
enum	boolOrDefault { BOU_UNSET , BOU_TRUE , BOU_FALSE }

Functions
bool	ParseCommandLineOptions (int argc, const char *const *argv, StringRef Overview="", raw_ostream *Errs=nullptr, const char *EnvVar=nullptr, bool LongOptionsUseDoubleDash=false)
void	SetVersionPrinter (VersionPrinterTy func)
	===------------------------------------------------------------------—===// Override the default (LLVM specific) version printer used to print out the version when –version is given on the command line.
void	AddExtraVersionPrinter (VersionPrinterTy func)
	===------------------------------------------------------------------—===// Add an extra printer to use in addition to the default one.
void	PrintOptionValues ()
void	AddLiteralOption (Option &O, StringRef Name)
	Adds a new option for parsing and provides the option it refers to.
OptionCategory &	getGeneralCategory ()
template<class Ty >
initializer< Ty >	init (const Ty &Val)
template<class Ty >
list_initializer< Ty >	list_init (ArrayRef< Ty > Vals)
template<class Ty >
LocationClass< Ty >	location (Ty &L)
template<typename F >
cb< typename detail::callback_traits< F >::result_type, typename detail::callback_traits< F >::arg_type >	callback (F CB)
template<typename... OptsTy>
ValuesClass	values (OptsTy... Options)
	Helper to build a ValuesClass by forwarding a variable number of arguments as an initializer list to the ValuesClass constructor.
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)
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)
template<class Opt , class Mod , class... Mods>
void	apply (Opt *O, const Mod &M, const Mods &... Ms)
template<class Opt , class Mod >
void	apply (Opt *O, const Mod &M)
void	PrintVersionMessage ()
	Utility function for printing version number.
void	PrintHelpMessage (bool Hidden=false, bool Categorized=false)
	This function just prints the help message, exactly the same way as if the -help or -help-hidden option had been given on the command line.
StringMap< Option * > &	getRegisteredOptions (SubCommand &Sub=SubCommand::getTopLevel())
	Use this to get a StringMap to all registered named options (e.g.
iterator_range< typename SmallPtrSet< SubCommand *, 4 >::iterator >	getRegisteredSubcommands ()
	Use this to get all registered SubCommands from the provided parser.
void	TokenizeGNUCommandLine (StringRef Source, StringSaver &Saver, SmallVectorImpl< const char * > &NewArgv, bool MarkEOLs=false)
	Tokenizes a command line that can contain escapes and quotes.
void	TokenizeWindowsCommandLine (StringRef Source, StringSaver &Saver, SmallVectorImpl< const char * > &NewArgv, bool MarkEOLs=false)
	Tokenizes a string of Windows command line arguments, which may contain quotes and escaped quotes.
void	TokenizeWindowsCommandLineNoCopy (StringRef Source, StringSaver &Saver, SmallVectorImpl< StringRef > &NewArgv)
	Tokenizes a Windows command line while attempting to avoid copies.
void	TokenizeWindowsCommandLineFull (StringRef Source, StringSaver &Saver, SmallVectorImpl< const char * > &NewArgv, bool MarkEOLs=false)
	Tokenizes a Windows full command line, including command name at the start.
void	tokenizeConfigFile (StringRef Source, StringSaver &Saver, SmallVectorImpl< const char * > &NewArgv, bool MarkEOLs=false)
	Tokenizes content of configuration file.
bool	expandResponseFiles (int Argc, const char *const *Argv, const char *EnvVar, SmallVectorImpl< const char * > &NewArgv)
	A convenience helper which concatenates the options specified by the environment variable EnvVar and command line options, then expands response files recursively.
bool	ExpandResponseFiles (StringSaver &Saver, TokenizerCallback Tokenizer, SmallVectorImpl< const char * > &Argv)
	A convenience helper which supports the typical use case of expansion function call.
bool	expandResponseFiles (int Argc, const char *const *Argv, const char *EnvVar, StringSaver &Saver, SmallVectorImpl< const char * > &NewArgv)
	A convenience helper which concatenates the options specified by the environment variable EnvVar and command line options, then expands response files recursively.
void	HideUnrelatedOptions (cl::OptionCategory &Category, SubCommand &Sub=SubCommand::getTopLevel())
	Mark all options not part of this category as cl::ReallyHidden.
void	HideUnrelatedOptions (ArrayRef< const cl::OptionCategory * > Categories, SubCommand &Sub=SubCommand::getTopLevel())
	Mark all options not part of the categories as cl::ReallyHidden.
void	ResetAllOptionOccurrences ()
	Reset all command line options to a state that looks as if they have never appeared on the command line.
void	ResetCommandLineParser ()
	Reset the command line parser back to its initial state.
bool	ProvidePositionalOption (Option *Handler, StringRef Arg, int i)
	Parses Arg into the option handler Handler.

Variables
ManagedStatic< SubCommand >	TopLevelSubCommand
ManagedStatic< SubCommand >	AllSubCommands

Detailed Description

This namespace contains all of the command line option processing machinery.

It is intentionally a short name to make qualified usage concise.

Typedef Documentation

TokenizerCallback

using llvm::cl::TokenizerCallback = typedef void (*)(StringRef Source, StringSaver &Saver, SmallVectorImpl<const char *> &NewArgv, bool MarkEOLs)

String tokenization function type.

Should be compatible with either Windows or Unix command line tokenizers.

Definition at line 2112 of file CommandLine.h.

VersionPrinterTy

using llvm::cl::VersionPrinterTy = typedef std::function<void(raw_ostream &)>

Definition at line 76 of file CommandLine.h.

Enumeration Type Documentation

boolOrDefault

enum llvm::cl::boolOrDefault

Enumerator
BOU_UNSET
BOU_TRUE
BOU_FALSE

Definition at line 631 of file CommandLine.h.

FormattingFlags

enum llvm::cl::FormattingFlags

Enumerator
NormalFormatting
Positional
Prefix
AlwaysPrefix

Definition at line 156 of file CommandLine.h.

MiscFlags

enum llvm::cl::MiscFlags

Enumerator
CommaSeparated
PositionalEatsArgs
Sink
Grouping
DefaultOption

Definition at line 163 of file CommandLine.h.

NumOccurrencesFlag

enum llvm::cl::NumOccurrencesFlag

Enumerator
Optional
ZeroOrMore
Required
OneOrMore
ConsumeAfter

Definition at line 113 of file CommandLine.h.

OptionHidden

enum llvm::cl::OptionHidden

Enumerator
NotHidden
Hidden
ReallyHidden

Definition at line 136 of file CommandLine.h.

ValueExpected

enum llvm::cl::ValueExpected

Enumerator
ValueOptional
ValueRequired
ValueDisallowed

Definition at line 129 of file CommandLine.h.

Function Documentation

AddExtraVersionPrinter()

void llvm::cl::AddExtraVersionPrinter

(

VersionPrinterTy

func

)

===------------------------------------------------------------------—===// 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.

Definition at line 2759 of file CommandLine.cpp.

References CommonOptions.

AddLiteralOption()

void llvm::cl::AddLiteralOption	(	Option &	O,
		StringRef	Name
	)

Adds a new option for parsing and provides the option it refers to.

Parameters

O	pointer to the option
Name	the string name for the option to handle during parsing

Literal options are used by some parsers to register special option values. This is how the PassNameParser registers pass names for opt.

Definition at line 435 of file CommandLine.cpp.

References GlobalParser, and Name.

Referenced by llvm::cl::parser< DataType >::addLiteralOption().

apply() [1/2]

template<class Opt , class Mod >

void llvm::cl::apply	(	Opt *	O,
		const Mod &	M
	)

Definition at line 1308 of file CommandLine.h.

References llvm::cl::applicator< Mod >::opt().

apply() [2/2]

template<class Opt , class Mod , class... Mods>

void llvm::cl::apply	(	Opt *	O,
		const Mod &	M,
		const Mods &...	Ms
	)

Definition at line 1303 of file CommandLine.h.

References apply(), and llvm::cl::applicator< Mod >::opt().

Referenced by llvm::cl::alias::alias(), apply(), llvm::cl::bits< DataType, Storage, ParserClass >::bits(), llvm::cl::list< DataType, StorageClass, ParserClass >::list(), and llvm::cl::opt< DataType, ExternalStorage, ParserClass >::opt().

callback()

template<typename F >

cb< typename detail::callback_traits< F >::result_type, typename detail::callback_traits< F >::arg_type > llvm::cl::callback

(

F

CB

)

Definition at line 517 of file CommandLine.h.

expandResponseFiles() [1/2]

bool llvm::cl::expandResponseFiles	(	int	Argc,
		const char *const *	Argv,
		const char *	EnvVar,
		SmallVectorImpl< const char * > &	NewArgv
	)

A convenience helper which concatenates the options specified by the environment variable EnvVar and command line options, then expands response files recursively.

Returns

true if all @files were expanded successfully or there were none.

Referenced by llvm::opt::OptTable::parseArgs().

expandResponseFiles() [2/2]

bool llvm::cl::expandResponseFiles	(	int	Argc,
		const char *const *	Argv,
		const char *	EnvVar,
		StringSaver &	Saver,
		SmallVectorImpl< const char * > &	NewArgv
	)

A convenience helper which concatenates the options specified by the environment variable EnvVar and command line options, then expands response files recursively.

The tokenizer is a predefined GNU or Windows one.

Returns

true if all @files were expanded successfully or there were none.

Definition at line 1355 of file CommandLine.cpp.

References llvm::SmallVectorImpl< T >::append(), llvm::errs(), llvm::cl::ExpansionContext::expandResponseFiles(), llvm::StringSaver::getAllocator(), llvm::sys::Process::GetEnv(), TokenizeGNUCommandLine(), TokenizeWindowsCommandLine(), and llvm::dwarf::toString().

ExpandResponseFiles()

bool llvm::cl::ExpandResponseFiles	(	StringSaver &	Saver,
		TokenizerCallback	Tokenizer,
		SmallVectorImpl< const char * > &	Argv
	)

A convenience helper which supports the typical use case of expansion function call.

Definition at line 1378 of file CommandLine.cpp.

References llvm::errs(), llvm::cl::ExpansionContext::expandResponseFiles(), llvm::StringSaver::getAllocator(), and llvm::dwarf::toString().

Referenced by llvm::libDriverMain().

getGeneralCategory()

OptionCategory & llvm::cl::getGeneralCategory

(

)

Definition at line 2683 of file CommandLine.cpp.

Referenced by llvm::cl::Option::addCategory(), and llvm::cl::Option::Option().

getRegisteredOptions()

StringMap< Option * > & llvm::cl::getRegisteredOptions

(

SubCommand &

Sub = SubCommand::getTopLevel()

)

Use this to get a StringMap to all registered named options (e.g.

-help).

Returns

A reference to the StringMap used by the cl APIs to parse options.

Access to unnamed arguments (i.e. positional) are not provided because it is expected that the client already has access to these.

Typical usage:

main(int argc,char* argv[]) {
StringMap<llvm::cl::Option*> &opts = llvm::cl::getRegisteredOptions();
assert(opts.count("help") == 1)
opts["help"]->setDescription("Show alphabetical help information")
// More code
llvm::cl::ParseCommandLineOptions(argc,argv);
//More code
}

This interface is useful for modifying options in libraries that are out of the control of the client. The options should be modified before calling llvm::cl::ParseCommandLineOptions().

Hopefully this API can be deprecated soon. Any situation where options need to be modified by tools or libraries should be handled by sane APIs rather than just handing around a global list.

Definition at line 2763 of file CommandLine.cpp.

References assert(), GlobalParser, initCommonOptions(), and llvm::cl::SubCommand::OptionsMap.

getRegisteredSubcommands()

iterator_range< typename SmallPtrSet< SubCommand *, 4 >::iterator > llvm::cl::getRegisteredSubcommands

(

)

Use this to get all registered SubCommands from the provided parser.

Returns

A range of all SubCommand pointers registered with the parser.

Typical usage:

main(int argc, char* argv[]) {
  llvm::cl::ParseCommandLineOptions(argc, argv);
  for (auto* S : llvm::cl::getRegisteredSubcommands()) {
    if (*S) {
      std::cout << "Executing subcommand: " << S->getName() << std::endl;
      // Execute some function based on the name...
    }
  }
}

This interface is useful for defining subcommands in libraries and the dispatch from a single point (like in the main function).

Definition at line 2772 of file CommandLine.cpp.

References GlobalParser.

HideUnrelatedOptions() [1/2]

void llvm::cl::HideUnrelatedOptions	(	ArrayRef< const cl::OptionCategory * >	Categories,
		SubCommand &	Sub = SubCommand::getTopLevel()
	)

Mark all options not part of the categories as cl::ReallyHidden.

Parameters

Categories

the categories of options to keep displaying.

Some tools (like clang-format) like to be able to hide all options that are not specific to the tool. This function allows a tool to specify a single option category to display in the -help output.

Definition at line 2789 of file CommandLine.cpp.

References CommonOptions, I, initCommonOptions(), llvm::is_contained(), llvm::cl::SubCommand::OptionsMap, and ReallyHidden.

HideUnrelatedOptions() [2/2]

void llvm::cl::HideUnrelatedOptions	(	cl::OptionCategory &	Category,
		SubCommand &	Sub = SubCommand::getTopLevel()
	)

Mark all options not part of this category as cl::ReallyHidden.

Parameters

Category

the category of options to keep displaying

Some tools (like clang-format) like to be able to hide all options that are not specific to the tool. This function allows a tool to specify a single option category to display in the -help output.

Definition at line 2776 of file CommandLine.cpp.

References CommonOptions, I, initCommonOptions(), llvm::cl::SubCommand::OptionsMap, and ReallyHidden.

init()

template<class Ty >

initializer< Ty > llvm::cl::init

(

const Ty &

Val

)

Definition at line 445 of file CommandLine.h.

Referenced by llvm::codegen::RegisterCodeGenFlags::RegisterCodeGenFlags(), and llvm::mc::RegisterMCTargetOptionsFlags::RegisterMCTargetOptionsFlags().

list_init()

template<class Ty >

list_initializer< Ty > llvm::cl::list_init

(

ArrayRef< Ty >

Vals

)

Definition at line 450 of file CommandLine.h.

location()

template<class Ty >

LocationClass< Ty > llvm::cl::location

(

Ty &

L

)

Definition at line 465 of file CommandLine.h.

Referenced by llvm::initStatisticOptions().

ParseCommandLineOptions()

bool llvm::cl::ParseCommandLineOptions	(	int	argc,
		const char *const *	argv,
		StringRef	Overview = "",
		raw_ostream *	Errs = nullptr,
		const char *	EnvVar = nullptr,
		bool	LongOptionsUseDoubleDash = false
	)

Definition at line 1446 of file CommandLine.cpp.

References A, llvm::sys::Process::GetEnv(), GlobalParser, I, initCommonOptions(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorBase< Size_T >::size(), and TokenizeGNUCommandLine().

Referenced by llvm::handleExecNameEncodedBEOpts(), llvm::handleExecNameEncodedOptimizerOpts(), LLVMParseCommandLineOptions(), llvm::parseCommandLineOptions(), and llvm::parseFuzzerCLOpts().

PrintHelpMessage()

void llvm::cl::PrintHelpMessage	(	bool	Hidden = false,
		bool	Categorized = false
	)

This function just prints the help message, exactly the same way as if the -help or -help-hidden option had been given on the command line.

Parameters

Hidden	if true will print hidden options
Categorized	if true print options in categories

Definition at line 2739 of file CommandLine.cpp.

References CommonOptions, and Hidden.

printOptionDiff() [1/2]

template<class ParserClass , class ValDT >

void llvm::cl::printOptionDiff	(	const Option &	O,
		const basic_parser< typename ParserClass::parser_data_type > &	P,
		const ValDT &	V,
		const OptionValue< ValDT > &	Default,
		size_t	GlobalWidth
	)

Definition at line 1238 of file CommandLine.h.

References llvm::Default, P, and printer.

printOptionDiff() [2/2]

template<class ParserClass , class DT >

void llvm::cl::printOptionDiff	(	const Option &	O,
		const generic_parser_base &	P,
		const DT &	V,
		const OptionValue< DT > &	Default,
		size_t	GlobalWidth
	)

Definition at line 1211 of file CommandLine.h.

References llvm::Default, and P.

PrintOptionValues()

void llvm::cl::PrintOptionValues

(

)

Definition at line 2720 of file CommandLine.cpp.

References GlobalParser.

PrintVersionMessage()

void llvm::cl::PrintVersionMessage

(

)

Utility function for printing version number.

Definition at line 2751 of file CommandLine.cpp.

References CommonOptions.

ProvidePositionalOption()

bool llvm::cl::ProvidePositionalOption	(	Option *	Handler,
		StringRef	Arg,
		int	i
	)

Parses Arg into the option handler Handler.

Definition at line 709 of file CommandLine.cpp.

References llvm::cl::Option::ArgStr, and ProvideOption().

ResetAllOptionOccurrences()

void llvm::cl::ResetAllOptionOccurrences

(

)

Reset all command line options to a state that looks as if they have never appeared on the command line.

Reset all options at least once, so that we can parse different options.

This is useful for being able to parse a command line multiple times (especially useful for writing tests).

Definition at line 1474 of file CommandLine.cpp.

ResetCommandLineParser()

void llvm::cl::ResetCommandLineParser

(

)

Reset the command line parser back to its initial state.

This removes all options, categories, and subcommands and returns the parser to a state where no options are supported.

Definition at line 2804 of file CommandLine.cpp.

References GlobalParser.

SetVersionPrinter()

void llvm::cl::SetVersionPrinter

(

VersionPrinterTy

func

)

===------------------------------------------------------------------—===// 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.

Definition at line 2755 of file CommandLine.cpp.

References CommonOptions.

tokenizeConfigFile()

void llvm::cl::tokenizeConfigFile	(	StringRef	Source,
		StringSaver &	Saver,
		SmallVectorImpl< const char * > &	NewArgv,
		bool	MarkEOLs = false
	)

Tokenizes content of configuration file.

Parameters

[in]	Source	The string representing content of config file.
[in]	Saver	Delegates back to the caller for saving parsed strings.
[out]	NewArgv	All parsed strings are appended to NewArgv.
[in]	MarkEOLs	Added for compatibility with TokenizerCallback.

It works like TokenizeGNUCommandLine with ability to skip comment lines.

Definition at line 1075 of file CommandLine.cpp.

References End, isWhitespace(), and TokenizeGNUCommandLine().

TokenizeGNUCommandLine()

void llvm::cl::TokenizeGNUCommandLine	(	StringRef	Source,
		StringSaver &	Saver,
		SmallVectorImpl< const char * > &	NewArgv,
		bool	MarkEOLs = false
	)

Tokenizes a command line that can contain escapes and quotes.

The quoting rules match those used by GCC and other tools that use libiberty's buildargv() or expandargv() utilities, and do not match bash. They differ from buildargv() on treatment of backslashes that do not escape a special character to make it possible to accept most Windows file paths.

Parameters

[in]	Source	The string to be split on whitespace with quotes.
[in]	Saver	Delegates back to the caller for saving parsed strings.
[in]	MarkEOLs	true if tokenizing a response file and you want end of lines and end of the response file to be marked with a nullptr string.
[out]	NewArgv	All parsed strings are appended to NewArgv.

Definition at line 823 of file CommandLine.cpp.

References llvm::CallingConv::C, llvm::SmallVectorImpl< T >::clear(), llvm::StringRef::data(), E, llvm::SmallVectorBase< Size_T >::empty(), I, isQuote(), isWhitespace(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::StringSaver::save(), and llvm::SmallString< InternalLen >::str().

Referenced by expandResponseFiles(), ParseCommandLineOptions(), and tokenizeConfigFile().

TokenizeWindowsCommandLine()

void llvm::cl::TokenizeWindowsCommandLine	(	StringRef	Source,
		StringSaver &	Saver,
		SmallVectorImpl< const char * > &	NewArgv,
		bool	MarkEOLs = false
	)

Tokenizes a string of Windows command line arguments, which may contain quotes and escaped quotes.

See MSDN docs for CommandLineToArgvW for information on the quoting rules. http://msdn.microsoft.com/en-us/library/windows/desktop/17w5ykft(v=vs.85).aspx

For handling a full Windows command line including the executable name at the start, see TokenizeWindowsCommandLineFull below.

Parameters

[in]	Source	The string to be split on whitespace with quotes.
[in]	Saver	Delegates back to the caller for saving parsed strings.
[in]	MarkEOLs	true if tokenizing a response file and you want end of lines and end of the response file to be marked with a nullptr string.
[out]	NewArgv	All parsed strings are appended to NewArgv.

Definition at line 1043 of file CommandLine.cpp.

References llvm::SmallVectorTemplateBase< T, bool >::push_back(), and tokenizeWindowsCommandLineImpl().

Referenced by expandResponseFiles(), and llvm::libDriverMain().

TokenizeWindowsCommandLineFull()

void llvm::cl::TokenizeWindowsCommandLineFull	(	StringRef	Source,
		StringSaver &	Saver,
		SmallVectorImpl< const char * > &	NewArgv,
		bool	MarkEOLs = false
	)

Tokenizes a Windows full command line, including command name at the start.

This uses the same syntax rules as TokenizeWindowsCommandLine for all but the first token. But the first token is expected to be parsed as the executable file name in the way CreateProcess would do it, rather than the way the C library startup code would do it: CreateProcess does not consider that \ is ever an escape character (because " is not a valid filename char, hence there's never a need to escape it to be used literally).

Parameters are the same as for TokenizeWindowsCommandLine. In particular, if you set MarkEOLs = true, then the first word of every line will be parsed using the special rules for command names, making this function suitable for parsing a file full of commands to execute.

Definition at line 1063 of file CommandLine.cpp.

References llvm::SmallVectorTemplateBase< T, bool >::push_back(), and tokenizeWindowsCommandLineImpl().

TokenizeWindowsCommandLineNoCopy()

void llvm::cl::TokenizeWindowsCommandLineNoCopy	(	StringRef	Source,
		StringSaver &	Saver,
		SmallVectorImpl< StringRef > &	NewArgv
	)

Tokenizes a Windows command line while attempting to avoid copies.

If no quoting or escaping was used, this produces substrings of the original string. If a token requires unquoting, it will be allocated with the StringSaver.

Definition at line 1055 of file CommandLine.cpp.

References llvm::SmallVectorTemplateBase< T, bool >::push_back(), and tokenizeWindowsCommandLineImpl().

Referenced by llvm::jitlink::COFFDirectiveParser::parse().

values()

template<typename... OptsTy>

ValuesClass llvm::cl::values

(

OptsTy...

Options

)

Helper to build a ValuesClass by forwarding a variable number of arguments as an initializer list to the ValuesClass constructor.

Definition at line 705 of file CommandLine.h.

References Options.

Referenced by llvm::codegen::RegisterCodeGenFlags::RegisterCodeGenFlags(), and llvm::mc::RegisterMCTargetOptionsFlags::RegisterMCTargetOptionsFlags().

Variable Documentation

AllSubCommands

ManagedStatic< SubCommand > llvm::cl::AllSubCommands

extern

Definition at line 489 of file CommandLine.cpp.

Referenced by llvm::cl::SubCommand::getAll().

TopLevelSubCommand

LLVM_REQUIRE_CONSTANT_INITIALIZATION ManagedStatic< SubCommand > llvm::cl::TopLevelSubCommand

extern

Definition at line 486 of file CommandLine.cpp.

Referenced by llvm::cl::SubCommand::getTopLevel().