llvm::StringRef Class Reference

StringRef - Represent a constant reference to a string, i.e. More...

#include "llvm/ADT/StringRef.h"

Inheritance diagram for llvm::StringRef:

Collaboration diagram for llvm::StringRef:

Public Types
using	iterator = const char *
using	const_iterator = const char *
using	size_type = size_t

Public Member Functions
Constructors
	StringRef ()=default
	Construct an empty string ref. More...
	StringRef (std::nullptr_t)=delete
	Disable conversion from nullptr. More...
constexpr	StringRef (const char *Str)
	Construct a string ref from a cstring. More...
constexpr	StringRef (const char *data, size_t length)
	Construct a string ref from a pointer and length. More...
	StringRef (const std::string &Str)
	Construct a string ref from an std::string. More...
constexpr	StringRef (std::string_view Str)
	Construct a string ref from an std::string_view. More...
Iterators
iterator	begin () const
iterator	end () const
const unsigned char *	bytes_begin () const
const unsigned char *	bytes_end () const
iterator_range< const unsigned char * >	bytes () const
String Operations
const char *	data () const
	data - Get a pointer to the start of the string (which may not be null terminated). More...
constexpr bool	empty () const
	empty - Check if the string is empty. More...
constexpr size_t	size () const
	size - Get the string size. More...
char	front () const
	front - Get the first character in the string. More...
char	back () const
	back - Get the last character in the string. More...
template<typename Allocator >
StringRef	copy (Allocator &A) const
bool	equals (StringRef RHS) const
	equals - Check for string equality, this is more efficient than compare() when the relative ordering of inequal strings isn't needed. More...
bool	equals_insensitive (StringRef RHS) const
	Check for string equality, ignoring case. More...
int	compare (StringRef RHS) const
	compare - Compare two strings; the result is -1, 0, or 1 if this string is lexicographically less than, equal to, or greater than the RHS. More...
int	compare_insensitive (StringRef RHS) const
	Compare two strings, ignoring case. More...
int	compare_numeric (StringRef RHS) const
	compare_numeric - Compare two strings, treating sequences of digits as numbers. More...
unsigned	edit_distance (StringRef Other, bool AllowReplacements=true, unsigned MaxEditDistance=0) const
	Determine the edit distance between this string and another string. More...
unsigned	edit_distance_insensitive (StringRef Other, bool AllowReplacements=true, unsigned MaxEditDistance=0) const
std::string	str () const
	str - Get the contents as an std::string. More...
std::string	lower () const
std::string	upper () const
	Convert the given ASCII string to uppercase. More...
Operator Overloads
char	operator[] (size_t Index) const
template<typename T >
std::enable_if_t< std::is_same< T, std::string >::value, StringRef > &	operator= (T &&Str)=delete
	Disallow accidental assignment from a temporary std::string. More...
Type Conversions
	operator std::string_view () const
String Predicates
bool	starts_with (StringRef Prefix) const
	Check if this string starts with the given Prefix. More...
bool	startswith (StringRef Prefix) const
bool	starts_with_insensitive (StringRef Prefix) const
	Check if this string starts with the given Prefix, ignoring case. More...
bool	startswith_insensitive (StringRef Prefix) const
bool	ends_with (StringRef Suffix) const
	Check if this string ends with the given Suffix. More...
bool	endswith (StringRef Suffix) const
bool	ends_with_insensitive (StringRef Suffix) const
	Check if this string ends with the given Suffix, ignoring case. More...
bool	endswith_insensitive (StringRef Suffix) const
String Searching
size_t	find (char C, size_t From=0) const
	Search for the first character C in the string. More...
size_t	find_insensitive (char C, size_t From=0) const
	Search for the first character C in the string, ignoring case. More...
size_t	find_if (function_ref< bool(char)> F, size_t From=0) const
	Search for the first character satisfying the predicate F. More...
size_t	find_if_not (function_ref< bool(char)> F, size_t From=0) const
	Search for the first character not satisfying the predicate F. More...
size_t	find (StringRef Str, size_t From=0) const
	Search for the first string Str in the string. More...
size_t	find_insensitive (StringRef Str, size_t From=0) const
	Search for the first string Str in the string, ignoring case. More...
size_t	rfind (char C, size_t From=npos) const
	Search for the last character C in the string. More...
size_t	rfind_insensitive (char C, size_t From=npos) const
	Search for the last character C in the string, ignoring case. More...
size_t	rfind (StringRef Str) const
	Search for the last string Str in the string. More...
size_t	rfind_insensitive (StringRef Str) const
	Search for the last string Str in the string, ignoring case. More...
size_t	find_first_of (char C, size_t From=0) const
	Find the first character in the string that is C, or npos if not found. More...
size_t	find_first_of (StringRef Chars, size_t From=0) const
	Find the first character in the string that is in Chars, or npos if not found. More...
size_t	find_first_not_of (char C, size_t From=0) const
	Find the first character in the string that is not C or npos if not found. More...
size_t	find_first_not_of (StringRef Chars, size_t From=0) const
	Find the first character in the string that is not in the string Chars, or npos if not found. More...
size_t	find_last_of (char C, size_t From=npos) const
	Find the last character in the string that is C, or npos if not found. More...
size_t	find_last_of (StringRef Chars, size_t From=npos) const
	Find the last character in the string that is in C, or npos if not found. More...
size_t	find_last_not_of (char C, size_t From=npos) const
	Find the last character in the string that is not C, or npos if not found. More...
size_t	find_last_not_of (StringRef Chars, size_t From=npos) const
	Find the last character in the string that is not in Chars, or npos if not found. More...
bool	contains (StringRef Other) const
	Return true if the given string is a substring of *this, and false otherwise. More...
bool	contains (char C) const
	Return true if the given character is contained in *this, and false otherwise. More...
bool	contains_insensitive (StringRef Other) const
	Return true if the given string is a substring of *this, and false otherwise. More...
bool	contains_insensitive (char C) const
	Return true if the given character is contained in *this, and false otherwise. More...
Helpful Algorithms
size_t	count (char C) const
	Return the number of occurrences of C in the string. More...
size_t	count (StringRef Str) const
	Return the number of non-overlapped occurrences of Str in the string. More...
template<typename T >
bool	getAsInteger (unsigned Radix, T &Result) const
	Parse the current string as an integer of the specified radix. More...
template<typename T >
bool	consumeInteger (unsigned Radix, T &Result)
	Parse the current string as an integer of the specified radix. More...
bool	getAsInteger (unsigned Radix, APInt &Result) const
	Parse the current string as an integer of the specified Radix, or of an autosensed radix if the Radix given is 0. More...
bool	getAsDouble (double &Result, bool AllowInexact=true) const
	Parse the current string as an IEEE double-precision floating point value. More...
Substring Operations
StringRef	substr (size_t Start, size_t N=npos) const
	Return a reference to the substring from [Start, Start + N). More...
StringRef	take_front (size_t N=1) const
	Return a StringRef equal to 'this' but with only the first N elements remaining. More...
StringRef	take_back (size_t N=1) const
	Return a StringRef equal to 'this' but with only the last N elements remaining. More...
StringRef	take_while (function_ref< bool(char)> F) const
	Return the longest prefix of 'this' such that every character in the prefix satisfies the given predicate. More...
StringRef	take_until (function_ref< bool(char)> F) const
	Return the longest prefix of 'this' such that no character in the prefix satisfies the given predicate. More...
StringRef	drop_front (size_t N=1) const
	Return a StringRef equal to 'this' but with the first N elements dropped. More...
StringRef	drop_back (size_t N=1) const
	Return a StringRef equal to 'this' but with the last N elements dropped. More...
StringRef	drop_while (function_ref< bool(char)> F) const
	Return a StringRef equal to 'this', but with all characters satisfying the given predicate dropped from the beginning of the string. More...
StringRef	drop_until (function_ref< bool(char)> F) const
	Return a StringRef equal to 'this', but with all characters not satisfying the given predicate dropped from the beginning of the string. More...
bool	consume_front (StringRef Prefix)
	Returns true if this StringRef has the given prefix and removes that prefix. More...
bool	consume_front_insensitive (StringRef Prefix)
	Returns true if this StringRef has the given prefix, ignoring case, and removes that prefix. More...
bool	consume_back (StringRef Suffix)
	Returns true if this StringRef has the given suffix and removes that suffix. More...
bool	consume_back_insensitive (StringRef Suffix)
	Returns true if this StringRef has the given suffix, ignoring case, and removes that suffix. More...
StringRef	slice (size_t Start, size_t End) const
	Return a reference to the substring from [Start, End). More...
std::pair< StringRef, StringRef >	split (char Separator) const
	Split into two substrings around the first occurrence of a separator character. More...
std::pair< StringRef, StringRef >	split (StringRef Separator) const
	Split into two substrings around the first occurrence of a separator string. More...
std::pair< StringRef, StringRef >	rsplit (StringRef Separator) const
	Split into two substrings around the last occurrence of a separator string. More...
void	split (SmallVectorImpl< StringRef > &A, StringRef Separator, int MaxSplit=-1, bool KeepEmpty=true) const
	Split into substrings around the occurrences of a separator string. More...
void	split (SmallVectorImpl< StringRef > &A, char Separator, int MaxSplit=-1, bool KeepEmpty=true) const
	Split into substrings around the occurrences of a separator character. More...
std::pair< StringRef, StringRef >	rsplit (char Separator) const
	Split into two substrings around the last occurrence of a separator character. More...
StringRef	ltrim (char Char) const
	Return string with consecutive Char characters starting from the the left removed. More...
StringRef	ltrim (StringRef Chars=" \t\n\v\f\r") const
	Return string with consecutive characters in Chars starting from the left removed. More...
StringRef	rtrim (char Char) const
	Return string with consecutive Char characters starting from the right removed. More...
StringRef	rtrim (StringRef Chars=" \t\n\v\f\r") const
	Return string with consecutive characters in Chars starting from the right removed. More...
StringRef	trim (char Char) const
	Return string with consecutive Char characters starting from the left and right removed. More...
StringRef	trim (StringRef Chars=" \t\n\v\f\r") const
	Return string with consecutive characters in Chars starting from the left and right removed. More...
StringRef	detectEOL () const
	Detect the line ending style of the string. More...

Static Public Attributes
static constexpr size_t	npos = ~size_t(0)

Detailed Description

StringRef - Represent a constant reference to a string, i.e.

a character array and a length, which need not be null terminated.

This class does not own the string data, it is expected to be used in situations where the character data resides in some other buffer, whose lifetime extends past that of the StringRef. For this reason, it is not in general safe to store a StringRef.

Definition at line 50 of file StringRef.h.

Member Typedef Documentation

const_iterator

using llvm::StringRef::const_iterator = const char *

Definition at line 55 of file StringRef.h.

iterator

using llvm::StringRef::iterator = const char *

Definition at line 54 of file StringRef.h.

size_type

using llvm::StringRef::size_type = size_t

Definition at line 56 of file StringRef.h.

Constructor & Destructor Documentation

StringRef() [1/6]

llvm::StringRef::StringRef ( )

default

Construct an empty string ref.

StringRef() [2/6]

llvm::StringRef::StringRef ( std::nullptr_t  )

delete

Disable conversion from nullptr.

This prevents things like if (S == nullptr)

StringRef() [3/6]

constexpr llvm::StringRef::StringRef ( const char *  Str )

inlineconstexpr

Construct a string ref from a cstring.

Definition at line 84 of file StringRef.h.

StringRef() [4/6]

constexpr llvm::StringRef::StringRef ( const char *  data, size_t  length  )

inlineconstexpr

Construct a string ref from a pointer and length.

Definition at line 96 of file StringRef.h.

StringRef() [5/6]

llvm::StringRef::StringRef ( const std::string &  Str )

inline

Construct a string ref from an std::string.

Definition at line 100 of file StringRef.h.

StringRef() [6/6]

constexpr llvm::StringRef::StringRef ( std::string_view  Str )

inlineconstexpr

Construct a string ref from an std::string_view.

Definition at line 104 of file StringRef.h.

Member Function Documentation

back()

char llvm::StringRef::back ( ) const

inline

back - Get the last character in the string.

Definition at line 146 of file StringRef.h.

References assert(), and llvm::Data.

Referenced by llvm::decodeBase64(), llvm::opt::OptTable::findNearest(), getQualifiedNameIndex(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), handleCompressedSection(), optimizeDoubleFP(), llvm::Pattern::parsePattern(), and llvm::sampleprof::SampleProfileReaderExtBinaryBase::readStringFromTable().

begin()

iterator llvm::StringRef::begin ( ) const

inline

Definition at line 111 of file StringRef.h.

References llvm::Data.

Referenced by llvm::MDString::begin(), llvm::yaml::BlockScalarNode::BlockScalarNode(), chopOneUTF32(), llvm::detail::IEEEFloat::convertFromString(), llvm::convertUTF8ToUTF16String(), llvm::yaml::escape(), llvm::APInt::getBitsNeeded(), llvm::sys::detail::getHostCPUNameForPowerPC(), getHostID(), llvm::object::Archive::Symbol::getName(), llvm::object::Archive::getNumberOfSymbols(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::getRecords(), llvm::object::WasmObjectFile::getRelocationTypeName(), llvm::object::MachOObjectFile::getRelocationTypeName(), llvm::object::XCOFFObjectFile::getRelocationTypeName(), llvm::TargetLoweringObjectFile::getSymbolWithGlobalValueBase(), llvm::yaml::ScalarNode::getValue(), llvm::TextInstrProfReader::hasFormat(), llvm::Timer::init(), llvm::TGLexer::Lex(), llvm::pdb::NamedStreamMap::load(), lower(), llvm::sys::fs::make_absolute(), makeAbsolute(), llvm::symbolize::MarkupParser::nextNode(), llvm::object::MachOUniversalBinary::ObjectForArch::ObjectForArch(), llvm::SmallString< 256 >::operator+=(), llvm::object::Archive::Child::operator==(), llvm::RISCVISAInfo::parseArchString(), llvm::InlineAsm::ParseConstraints(), parseMaybeMangledName(), readInteger(), readStruct(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::reconstituteName(), llvm::sys::path::replace_extension(), llvm::yaml::ScalarNode::ScalarNode(), llvm::AsmLexer::setBuffer(), llvm::EngineBuilder::setMArch(), llvm::EngineBuilder::setMCPU(), llvm::TimerGroup::setName(), llvm::sys::unicode::startsWith(), llvm::object::Archive::symbol_begin(), llvm::TGLexer::TGLexer(), and upper().

bytes()

iterator_range<const unsigned char *> llvm::StringRef::bytes ( ) const

inline

Definition at line 121 of file StringRef.h.

References llvm::make_range().

Referenced by llvm::djbHash().

bytes_begin()

const unsigned char* llvm::StringRef::bytes_begin ( ) const

inline

Definition at line 115 of file StringRef.h.

References llvm::sys::path::begin().

Referenced by llvm::object::ELFFile< ELFT >::base(), llvm::MDString::bytes_begin(), loadObj(), llvm::xray::readBinaryFormatHeader(), llvm::readPGOFuncNameStrings(), and llvm::orc::ELFDebugObjectSection< ELFT >::validateInBounds().

bytes_end()

const unsigned char* llvm::StringRef::bytes_end ( ) const

inline

Definition at line 118 of file StringRef.h.

References llvm::sys::path::end().

Referenced by llvm::MDString::bytes_end(), loadObj(), and llvm::readPGOFuncNameStrings().

compare()

int llvm::StringRef::compare ( StringRef  RHS ) const

inline

compare - Compare two strings; the result is -1, 0, or 1 if this string is lexicographically less than, equal to, or greater than the RHS.

Definition at line 176 of file StringRef.h.

References llvm::Data, llvm::min(), and RHS.

Referenced by llvm::FunctionComparator::cmpMem(), llvm::SmallString< 256 >::compare(), compareNames(), getArgAccessQual(), getKernelArgTypeQual(), llvm::sampleprof::SampleContext::operator<(), and SortSymbolPair().

compare_insensitive()

int StringRef::compare_insensitive

(

StringRef

RHS

)

const

Compare two strings, ignoring case.

Definition at line 37 of file StringRef.cpp.

References ascii_strncasecmp(), llvm::min(), and RHS.

Referenced by llvm::SmallString< 256 >::compare_insensitive(), gsiRecordCmp(), and llvm::DetectRoundChange::runOnMachineFunction().

compare_numeric()

int StringRef::compare_numeric

(

StringRef

RHS

)

const

compare_numeric - Compare two strings, treating sequences of digits as numbers.

compare_numeric - Compare strings, handle embedded numbers.

Definition at line 61 of file StringRef.cpp.

References E, I, isDigit(), llvm::min(), and RHS.

Referenced by llvm::SmallString< 256 >::compare_numeric(), and llvm::LessRecord::operator()().

consume_back()

bool llvm::StringRef::consume_back ( StringRef  Suffix )

inline

Returns true if this StringRef has the given suffix and removes that suffix.

Definition at line 647 of file StringRef.h.

References size().

Referenced by llvm::VFABI::tryDemangleForVFABI().

consume_back_insensitive()

bool llvm::StringRef::consume_back_insensitive ( StringRef  Suffix )

inline

Returns true if this StringRef has the given suffix, ignoring case, and removes that suffix.

Definition at line 657 of file StringRef.h.

References size().

consume_front()

bool llvm::StringRef::consume_front ( StringRef  Prefix )

inline

Returns true if this StringRef has the given prefix and removes that prefix.

Definition at line 627 of file StringRef.h.

References llvm::cl::Prefix, and llvm::sys::path::starts_with().

Referenced by llvm::Triple::getOSVersion(), llvm::orc::ELFNixPlatform::isInitializerSection(), llvm::RISCVISAInfo::parseArchString(), parseMagic(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::MCContext::setGenDwarfRootFile(), and llvm::VFABI::tryDemangleForVFABI().

consume_front_insensitive()

bool llvm::StringRef::consume_front_insensitive ( StringRef  Prefix )

inline

Returns true if this StringRef has the given prefix, ignoring case, and removes that prefix.

Definition at line 637 of file StringRef.h.

References llvm::cl::Prefix.

consumeInteger()

template<typename T >

bool llvm::StringRef::consumeInteger ( unsigned  Radix, T &  Result  )

inline

Parse the current string as an integer of the specified radix.

If Radix is specified as zero, this does radix autosensing using extended C rules: 0 is octal, 0x is hex, 0b is binary.

If the string does not begin with a number of the specified radix, this returns true to signify the error. The string is considered erroneous if empty or if it overflows T. The portion of the string representing the discovered numeric value is removed from the beginning of the string.

Definition at line 503 of file StringRef.h.

References llvm::consumeSignedInteger(), llvm::consumeUnsignedInteger(), and T.

Referenced by llvm::formatv_object_base::consumeFieldLayout(), llvm::HexagonSubtarget::initializeSubtargetDependencies(), llvm::yaml::ScalarTraits< FrameIndex >::input(), llvm::Pattern::parseNumericSubstitutionBlock(), and llvm::formatv_object_base::parseReplacementItem().

contains() [1/2]

bool llvm::StringRef::contains ( char  C ) const

inline

Return true if the given character is contained in *this, and false otherwise.

Definition at line 434 of file StringRef.h.

contains() [2/2]

bool llvm::StringRef::contains ( StringRef  Other ) const

inline

Return true if the given string is a substring of *this, and false otherwise.

Definition at line 428 of file StringRef.h.

References llvm::find(), and Other.

Referenced by llvm::Hexagon_MC::addArchSubtarget(), llvm::generateSampleImageInst(), llvm::object::getNameType(), llvm::AMDGPU::HSAMD::MetadataStreamerMsgPackV3::getValueKind(), llvm::object::isDecorated(), llvm::X86TargetLowering::isInlineAsmTargetBranch(), isSmallDataSection(), llvm::gsym::operator<<(), llvm::RISCVISAInfo::parseArchString(), llvm::Pattern::parsePattern(), and sanitizeFunctionName().

contains_insensitive() [1/2]

bool llvm::StringRef::contains_insensitive ( char  C ) const

inline

Return true if the given character is contained in *this, and false otherwise.

Definition at line 446 of file StringRef.h.

contains_insensitive() [2/2]

bool llvm::StringRef::contains_insensitive ( StringRef  Other ) const

inline

Return true if the given string is a substring of *this, and false otherwise.

Definition at line 440 of file StringRef.h.

References Other.

Referenced by llvm::generateReadImageInst().

copy()

template<typename Allocator >

StringRef llvm::StringRef::copy ( Allocator &  A ) const

inline

Definition at line 153 of file StringRef.h.

References llvm::sys::path::begin(), copy, llvm::sys::path::end(), and S.

Referenced by llvm::yaml::Document::parseBlockNode().

count() [1/2]

size_t llvm::StringRef::count ( char  C ) const

inline

Return the number of occurrences of C in the string.

Definition at line 455 of file StringRef.h.

References llvm::Data, llvm::numbers::e, and i.

Referenced by llvm::SmallString< 256 >::count(), llvm::HexagonInstrInfo::getInlineAsmLength(), and llvm::yaml::MappingTraits< Argument >::mapping().

count() [2/2]

size_t StringRef::count

(

StringRef

Str

)

const

Return the number of non-overlapped occurrences of Str in the string.

count - Return the number of non-overlapped occurrences of

• Str in the string.

Definition at line 383 of file StringRef.cpp.

References find(), N, and npos.

data()

const char* llvm::StringRef::data ( ) const

inline

data - Get a pointer to the start of the string (which may not be null terminated).

Definition at line 131 of file StringRef.h.

References llvm::Data.

Referenced by annotateAllFunctions(), constructSegment(), constructSymbolEntry(), llvm::objcopy::coff::createGnuDebugLinkSectionContents(), llvm::jitlink::createLinkGraphFromELFObject(), llvm::DWARFDebugPubTable::dump(), llvm::DWARFListTableHeader::dump(), edit_distance(), edit_distance_insensitive(), llvm::DIEAbbrev::Emit(), llvm::BitstreamWriter::emitBlob(), llvm::DWARFYAML::emitDebugAbbrev(), llvm::DWARFYAML::emitDebugLine(), llvm::InstrProfRecordWriterTrait::EmitKey(), llvm::RuntimeDyldImpl::emitSection(), llvm::cl::Option::error(), ExpandBasePaths(), llvm::DWARFListType< RangeListEntry >::extract(), llvm::RuntimeDyldCOFFAArch64::generateRelocationStub(), llvm::RuntimeDyldCOFFX86_64::generateRelocationStub(), llvm::irsymtab::storage::Str::get(), llvm::irsymtab::storage::Range< llvm::irsymtab::storage::Comdat >::get(), llvm::ErrorDiagnostic::get(), llvm::DataExtractor::getCStr(), llvm::AsmToken::getEndLoc(), llvm::HexagonInstrInfo::getInlineAsmLength(), getInstructionID(), llvm::AsmToken::getLoc(), llvm::DWARFDie::getLocations(), getMemBufferCopyImpl(), llvm::object::ArchiveMemberHeader::getName(), llvm::GCOVFunction::getName(), llvm::object::Elf_Sym_Impl< ELFT >::getName(), llvm::object::BigArchiveMemberHeader::getNextChildLoc(), llvm::opt::ArgList::GetOrMakeJoinedArgString(), llvm::object::ArchiveMemberHeader::getRawName(), llvm::object::BigArchiveMemberHeader::getRawName(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), llvm::SITargetLowering::getRegForInlineAsmConstraint(), llvm::PPCTargetLowering::getRegForInlineAsmConstraint(), llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::RuntimeDyldMachO::getRelocationValueRef(), llvm::object::ELFFile< ELFT >::getSectionName(), getUUID(), gsiRecordCmp(), isAsmComment(), LLVMGetNamedMetadataName(), llvm::VETargetLowering::LowerCustomJumpTableEntry(), llvm::LegalizerHelper::lowerReadWriteRegister(), llvm::remarks::magicToFormat(), llvm::sys::path::native(), llvm::MCJIT::notifyFreeingObject(), llvm::MCJIT::notifyObjectLoaded(), llvm::SourceMgr::OpenIncludeFile(), llvm::remarks::ParsedStringTable::operator[](), llvm::jitlink::COFFDirectiveParser::parse(), llvm::remarks::ParsedStringTable::ParsedStringTable(), llvm::remarks::parseFormat(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), parseRD(), parseStrTab(), parseStrTabSize(), parseTypeIdSummaryRecord(), parseVersion(), parseWholeProgramDevirtResolution(), llvm::X86Operand::print(), llvm::RuntimeDyldELF::processRelocationRef(), llvm::irsymtab::readBitcode(), readCoverageMappingData(), llvm::jitlink::readTargetMachineArch(), llvm::LessRecordRegister::RecordParts::RecordParts(), llvm::Regex::Regex(), llvm::report_fatal_error(), reportError(), X86ReturnThunks::runOnMachineFunction(), llvm::cl::TokenizeGNUCommandLine(), transformCallee(), llvm::codeview::TypeServer2Record::TypeServer2Record(), validateMagicNumber(), llvm::writeFileAtomically(), and llvm::yaml::yaml2archive().

detectEOL()

StringRef llvm::StringRef::detectEOL ( ) const

inline

Detect the line ending style of the string.

If the string contains a line ending, return the line ending character sequence that is detected. Otherwise return '
' for unix line endings.

Returns

- The line ending character sequence.

Definition at line 823 of file StringRef.h.

References llvm::Data, and llvm::find().

drop_back()

StringRef llvm::StringRef::drop_back ( size_t  N = 1 ) const

inline

Return a StringRef equal to 'this' but with the last N elements dropped.

Definition at line 608 of file StringRef.h.

References assert(), N, llvm::size(), and substr().

Referenced by llvm::yaml::Document::parseBlockNode(), and llvm::GCOVBuffer::readString().

drop_front()

StringRef llvm::StringRef::drop_front ( size_t  N = 1 ) const

inline

Return a StringRef equal to 'this' but with the first N elements dropped.

Definition at line 601 of file StringRef.h.

References assert(), N, llvm::size(), and substr().

Referenced by llvm::objcopy::elf::OwnedDataSection::appendHexData(), llvm::ELFAttrs::attrTypeAsString(), llvm::ELFAttrs::attrTypeFromString(), chopOneUTF32(), llvm::formatv_object_base::consumeFieldLayout(), llvm::getFuncNameWithoutPrefix(), llvm::InstrProfSymtab::getOrigFuncName(), llvm::codeview::getSymbolName(), llvm::HexagonSubtarget::initializeSubtargetDependencies(), llvm::symbolize::MarkupParser::nextNode(), llvm::Triple::normalize(), llvm::RISCVISAInfo::parseArchString(), llvm::RISCVISAInfo::parseFeatures(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::formatv_object_base::parseReplacementItem(), parseStrTab(), parseStrTabSize(), parseVersion(), printSourceLine(), llvm::sys::path::remove_dots(), llvm::MCContext::setGenDwarfRootFile(), llvm::formatv_object_base::splitLiteralAndReplacement(), llvm::orc::DLLImportDefinitionGenerator::tryToGenerate(), and upgradeLoopTag().

drop_until()

StringRef llvm::StringRef::drop_until ( function_ref< bool(char)>  F ) const

inline

Return a StringRef equal to 'this', but with all characters not satisfying the given predicate dropped from the beginning of the string.

Definition at line 621 of file StringRef.h.

References F, llvm::find_if(), and substr().

drop_while()

StringRef llvm::StringRef::drop_while ( function_ref< bool(char)>  F ) const

inline

Return a StringRef equal to 'this', but with all characters satisfying the given predicate dropped from the beginning of the string.

Definition at line 615 of file StringRef.h.

References F, llvm::find_if_not(), and substr().

edit_distance()

unsigned StringRef::edit_distance	(	llvm::StringRef	Other,
		bool	AllowReplacements = true,
		unsigned	MaxEditDistance = 0
	)		const

Determine the edit distance between this string and another string.

Parameters

Other	the string to compare this string against.
AllowReplacements	whether to allow character replacements (change one character into another) as a single operation, rather than as two operations (an insertion and a removal).
MaxEditDistance	If non-zero, the maximum edit distance that this routine is allowed to compute. If the edit distance will exceed that maximum, returns MaxEditDistance+1.

Returns

the minimum number of character insertions, removals, or (if AllowReplacements is true) replacements needed to transform one of the given strings into the other. If zero, the strings are identical.

Definition at line 92 of file StringRef.cpp.

References llvm::ComputeEditDistance(), data(), llvm::makeArrayRef(), Other, and size().

Referenced by llvm::opt::OptTable::findNearest(), and LookupNearestOption().

edit_distance_insensitive()

unsigned llvm::StringRef::edit_distance_insensitive	(	StringRef	Other,
		bool	AllowReplacements = true,
		unsigned	MaxEditDistance = 0
	)		const

Definition at line 101 of file StringRef.cpp.

References llvm::ComputeMappedEditDistance(), data(), llvm::makeArrayRef(), Other, and size().

empty()

constexpr bool llvm::StringRef::empty ( ) const

inlineconstexpr

empty - Check if the string is empty.

Definition at line 134 of file StringRef.h.

Referenced by llvm::InstrProfSymtab::addFuncName(), llvm::analyzeImportedModule(), llvm::objcopy::elf::OwnedDataSection::appendHexData(), llvm::DwarfUnit::applySubprogramAttributes(), llvm::DwarfUnit::applySubprogramDefinitionAttributes(), buildDWODescription(), llvm::DICompositeType::buildODRType(), llvm::caseFoldingDjbHash(), llvm::checkDebugInfoMetadata(), chopOneUTF32(), llvm::InlineAsm::collectAsmStrs(), llvm::DIEHash::computeCUSignature(), computeDefaultCPU(), llvm::ARM::computeDefaultTargetABI(), llvm::RISCVABI::computeTargetABI(), computeTargetABI(), llvm::DwarfUnit::constructTypeDIE(), llvm::formatv_object_base::consumeFieldLayout(), llvm::consumeUnsignedInteger(), llvm::detail::IEEEFloat::convertFromString(), llvm::convertUTF8ToUTF16String(), llvm::memprof::RawMemProfReader::create(), llvm::vfs::RedirectingFileSystem::create(), llvm::sys::fs::create_directories(), createAArch64MCSubtargetInfo(), llvm::sampleprof::SampleContext::createCtxVectorFromStr(), createLoongArchMCSubtargetInfo(), createProfileFileNameVar(), llvm::createProfileFileNameVar(), createRISCVMCSubtargetInfo(), llvm::createSanitizerCtorAndInitFunctions(), createSparcMCSubtargetInfo(), llvm::sys::fs::createTemporaryFile(), createVEMCSubtargetInfo(), llvm::X86_MC::createX86MCSubtargetInfo(), llvm::declareSanitizerInitFunction(), llvm::DWARFUnit::determineStringOffsetsTableContributionDWO(), llvm::gsym::GsymReader::dump(), emitComments(), EmitGenDwarfAbbrev(), llvm::TargetLoweringObjectFileMachO::emitModuleMetadata(), llvm::ARMTargetStreamer::emitTargetAttributes(), llvm::cl::Option::error(), ExpandBasePaths(), llvm::sampleprof::FunctionSamples::findFunctionSamplesAt(), llvm::opt::OptTable::findNearest(), llvm::finishBuildOpDecorate(), llvm::JITSymbolFlags::fromGlobalValue(), llvm::Attribute::get(), llvm::get_threadpool_strategy(), llvm::ARM::getARMCPUForArch(), llvm::ContextTrieNode::getChildContext(), llvm::DeclContextTree::getChildDeclContext(), llvm::objcopy::ConfigManager::getCOFFConfig(), llvm::MCContext::getCOFFSection(), getCommonClassOptions(), llvm::getCPU(), llvm::Function::getDenormalMode(), llvm::MCContext::getELFSection(), llvm::json::Path::Root::getError(), getExtensionVersion(), getFeatures(), llvm::coverage::CovMapFunctionRecordV1< IntPtrT >::getFuncName(), llvm::getFuncNameWithoutPrefix(), llvm::object::AbstractArchiveMemberHeader::getGID(), llvm::GlobalValue::getGlobalIdentifier(), getGPUOrDefault(), llvm::X86TargetLowering::getIRStackGuard(), getItineraryLatency(), llvm::TargetLibraryInfoImpl::getLibFunc(), llvm::object::MachOObjectFile::getLibraryShortNameByIndex(), llvm::objcopy::ConfigManager::getMachOConfig(), llvm::DICompositeType::getODRTypeIfExists(), getOpEnabled(), getOpRefinementSteps(), llvm::DwarfCompileUnit::getOrCreateCommonBlock(), llvm::DwarfCompileUnit::getOrCreateGlobalVariableDIE(), llvm::getOrCreateSanitizerCtorAndInitFunctions(), llvm::MCContext::getOrCreateSymbol(), getPassNameAndInstanceNum(), getPrettyScopeName(), llvm::MCObjectFileInfo::getPseudoProbeDescSection(), getQualifiedNameIndex(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::getRecords(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), llvm::TargetLowering::getRegForInlineAsmConstraint(), getSearchPaths(), getStackGuard(), llvm::getSubDirectoryPath(), llvm::M68kMCInstLower::GetSymbolFromOperand(), llvm::TargetLoweringObjectFile::getSymbolWithGlobalValueBase(), llvm::lto::getThinLTOOutputFile(), getUnicodeEncoding(), llvm::MCSymbolXCOFF::getUnqualifiedName(), getUUID(), llvm::yaml::Node::getVerbatimTag(), llvm::objcopy::ConfigManager::getWasmConfig(), llvm::TargetLibraryInfoImpl::getWidestVF(), llvm::objcopy::ConfigManager::getXCOFFConfig(), handleArgs(), llvm::DWARFVerifier::handleDebugAbbrev(), HandlePrefixedOrGroupedOption(), llvm::sys::path::has_extension(), llvm::sys::path::has_filename(), llvm::sys::path::has_parent_path(), llvm::sys::path::has_relative_path(), llvm::sys::path::has_root_directory(), llvm::sys::path::has_root_name(), llvm::sys::path::has_root_path(), llvm::sys::path::has_stem(), llvm::cl::Option::hasArgStr(), llvm::IntelExpr::hasBaseReg(), llvm::SubtargetFeatures::hasFlag(), llvm::IntelExpr::hasIndexReg(), llvm::MCAsmInfo::hasLinkerPrivateGlobalPrefix(), llvm::IntelExpr::hasOffset(), llvm::MCSymbolXCOFF::hasRename(), llvm::GlobalValue::hasSection(), llvm::X86TargetLowering::hasStackProbeSymbol(), llvm::object::Archive::hasSymbolTable(), llvm::MSP430Subtarget::initializeSubtargetDependencies(), llvm::NVPTXSubtarget::initializeSubtargetDependencies(), llvm::CSKYSubtarget::initializeSubtargetDependencies(), llvm::MCSubtargetInfo::InitMCProcessorInfo(), llvm::X86TargetLowering::insertSSPDeclarations(), llvm::ELFAttributeParser::integerAttribute(), llvm::SubtargetFeatures::isEnabled(), llvm::TargetLibraryInfoImpl::isFunctionVectorizable(), llvm::orc::ELFNixPlatform::isInitializerSection(), llvm::sys::unicode::Node::isValid(), llvm::AMDGPU::MTBUFFormat::isValidNfmt(), llvm::LoadAndStorePromoter::LoadAndStorePromoter(), loadBinaryFormat(), llvm::loadOutputSpecs(), llvm::logicalview::LVPatterns::matchPattern(), llvm::sampleprof::FunctionSamples::merge(), llvm::symbolize::MarkupParser::nextNode(), llvm::Triple::normalize(), llvm::gsym::operator<<(), optimizeDoubleFP(), llvm::AMDGPULibFunc::parse(), llvm::PassBuilder::parseAAPipeline(), parseARMArch(), llvm::ARM_MC::ParseARMTriple(), parseCC(), llvm::parseDenormalFPAttribute(), llvm::remarks::ParsedStringTable::ParsedStringTable(), llvm::formatv_object_base::parseFormatString(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), llvm::remarks::YAMLRemarkParser::parseRemark(), llvm::formatv_object_base::parseReplacementItem(), llvm::MCSectionMachO::ParseSectionSpecifier(), parseSubArch(), llvm::MCExpr::print(), llvm::DiagnosticInfoSampleProfile::print(), llvm::MCInstPrinter::printAnnotation(), llvm::ELFAttributeParser::printAttribute(), printCFI(), PrintCFIEscape(), printFile(), llvm::AMDGPUInstPrinter::printHwreg(), llvm::cl::generic_parser_base::printOptionInfo(), llvm::AMDGPUInstPrinter::printSendMsg(), llvm::MCSectionMachO::printSwitchToSection(), printSymbolizedStackTrace(), processLoadCommands(), llvm::AttributeImpl::Profile(), llvm::SampleContextTracker::promoteMergeContextSamplesTree(), llvm::irsymtab::readBitcode(), llvm::GCOVFile::readGCNO(), llvm::TextInstrProfReader::readNextRecord(), llvm::sampleprof::SampleProfileReaderExtBinaryBase::readStringFromTable(), llvm::LessRecordRegister::RecordParts::RecordParts(), registerPartialPipelineCallback(), llvm::sys::path::remove_dots(), llvm::sys::path::replace_path_prefix(), llvm::ThinLTOCodeGenerator::run(), runOnFunction(), llvm::sampleprof::SampleContext::SampleContext(), sanitizeFunctionName(), llvm::Hexagon_MC::selectHexagonCPU(), selectM68kCPU(), llvm::MIPS_MC::selectMipsCPU(), llvm::EngineBuilder::selectTarget(), llvm::codegen::setFunctionAttributes(), llvm::MCContext::setGenDwarfRootFile(), llvm::lto::setupStatsFile(), llvm::VFABI::setVectorVariantNames(), shouldAlwaysEmitCompleteClassType(), shouldPrintOption(), llvm::AMDGPU::SIModeRegisterDefaults::SIModeRegisterDefaults(), llvm::formatv_object_base::splitLiteralAndReplacement(), llvm::sys::unicode::startsWith(), llvm::ELFAttributeParser::stringAttribute(), llvm::Regex::sub(), llvm::InlineAdvisorAnalysis::Result::tryCreate(), llvm::VFABI::tryDemangleForVFABI(), llvm::MCDwarfLineTableHeader::tryGetFile(), updateAndRemoveSymbols(), llvm::UpgradeAttributes(), llvm::InlineAsm::verify(), and llvm::ThinLTOCodeGenerator::writeGeneratedObject().

end()

iterator llvm::StringRef::end ( ) const

inline

Definition at line 113 of file StringRef.h.

References llvm::Data.

Referenced by chopOneUTF32(), llvm::convertUTF8ToUTF16String(), llvm::MDString::end(), ends_with_insensitive(), llvm::yaml::escape(), llvm::sys::detail::getHostCPUNameForPowerPC(), getHostID(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::getRecords(), llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::object::WasmObjectFile::getRelocationTypeName(), llvm::object::MachOObjectFile::getRelocationTypeName(), llvm::object::XCOFFObjectFile::getRelocationTypeName(), llvm::TargetLoweringObjectFile::getSymbolWithGlobalValueBase(), llvm::Timer::init(), llvm::AsmLexer::LexToken(), llvm::AsmLexer::LexUntilEndOfStatement(), llvm::pdb::NamedStreamMap::load(), lower(), llvm::sys::fs::make_absolute(), llvm::symbolize::MarkupParser::nextNode(), llvm::RISCVISAInfo::parseArchString(), llvm::InlineAsm::ParseConstraints(), parseMaybeMangledName(), parseRD(), parseRegisterNumber(), readInteger(), readStruct(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::reconstituteName(), llvm::Regex::Regex(), llvm::sys::path::replace_extension(), llvm::EngineBuilder::setMArch(), llvm::EngineBuilder::setMCPU(), llvm::TimerGroup::setName(), and upper().

ends_with()

bool llvm::StringRef::ends_with ( StringRef  Suffix ) const

inline

Check if this string ends with the given Suffix.

Definition at line 271 of file StringRef.h.

References llvm::sys::path::end().

ends_with_insensitive()

bool StringRef::ends_with_insensitive

(

StringRef

Suffix

)

const

Check if this string ends with the given Suffix, ignoring case.

Definition at line 50 of file StringRef.cpp.

References ascii_strncasecmp(), and end().

endswith()

bool llvm::StringRef::endswith ( StringRef  Suffix ) const

inline

Definition at line 276 of file StringRef.h.

Referenced by llvm::DWARFTypePrinter::appendTypeTagName(), llvm::SmallString< 256 >::endswith(), getArgType(), llvm::sys::detail::getHostCPUNameForARM(), llvm::opt::ArgList::GetOrMakeJoinedArgString(), llvm::object::BigArchiveMemberHeader::getRawName(), llvm::SITargetLowering::getRegForInlineAsmConstraint(), llvm::AMDGPU::IsaInfo::getTargetIDSettingFromFeatureString(), isDWOSection(), llvm::vfs::RedirectingFileSystem::makeAbsolute(), llvm::parseAnalysisUtilityPasses(), llvm::ARM::parseArchEndian(), and parseSubArch().

endswith_insensitive()

bool llvm::StringRef::endswith_insensitive ( StringRef  Suffix ) const

inline

Definition at line 282 of file StringRef.h.

equals()

bool llvm::StringRef::equals ( StringRef  RHS ) const

inline

equals - Check for string equality, this is more efficient than compare() when the relative ordering of inequal strings isn't needed.

Definition at line 164 of file StringRef.h.

References llvm::Data, and RHS.

Referenced by llvm::Hexagon_MC::createHexagonMCSubtargetInfo(), llvm::SmallString< 256 >::equals(), llvm::ARM::getARMCPUForArch(), llvm::BasicBlock::getIrrLoopHeaderWeight(), getSummaryFromMD(), getValMD(), isKeyValuePair(), isSmallDataSection(), llvm::AMDGPULegalizerInfo::legalizeGlobalValue(), llvm::AMDGPUTargetLowering::LowerGlobalAddress(), makeStatepointExplicitImpl(), llvm::logicalview::LVPatterns::matchPattern(), llvm::CodeGenCoverage::parse(), parseBPFArch(), llvm::MIRParserImpl::parseRegisterInfo(), llvm::json::Path::Root::printErrorContext(), and rfind().

equals_insensitive()

bool llvm::StringRef::equals_insensitive ( StringRef  RHS ) const

inline

Check for string equality, ignoring case.

Definition at line 170 of file StringRef.h.

References RHS.

Referenced by llvm::AArch64FunctionInfo::AArch64FunctionInfo(), llvm::SmallString< 256 >::equals_insensitive(), llvm::findVCToolChainViaEnvironment(), GetBranchTargetEnforcement(), llvm::HexagonMCInstrInfo::isOrderedDuplexPair(), llvm::logicalview::LVPatterns::matchPattern(), and rfind_insensitive().

find() [1/2]

size_t llvm::StringRef::find ( char  C, size_t  From = 0  ) const

inline

Search for the first character C in the string.

Returns

The index of the first occurrence of C, or npos if not found.

Definition at line 294 of file StringRef.h.

References llvm::Data, From, llvm::min(), and P.

Referenced by checkLinkerOptCommand(), CommaSeparateAndAddOccurrence(), count(), llvm::Hexagon_MC::createHexagonMCSubtargetInfo(), emitComments(), llvm::RuntimeDyldCheckerExprEval::evaluate(), ExpandBasePaths(), llvm::SmallString< 256 >::find(), llvm::TernOpInit::Fold(), llvm::memprof::IndexedMemProfRecord::getGUID(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), getProbeFNameForGUID(), llvm::object::ArchiveMemberHeader::getRawName(), llvm::yaml::ScalarNode::getValue(), llvm::isSpecialPass(), llvm::lookupBuiltin(), ParseLine(), llvm::Pattern::parseNumericSubstitutionBlock(), printSourceLine(), printSymbolizedStackTrace(), and singleLetterExtensionRank().

find() [2/2]

size_t StringRef::find	(	StringRef	Str,
		size_t	From = 0
	)		const

Search for the first string Str in the string.

find - Search for the first string

Returns

The index of the first occurrence of Str, or npos if not found.

• Str in the string.

Returns

- The index of the first occurrence of

• Str, or npos if not found.

Definition at line 131 of file StringRef.cpp.

References From, N, npos, and Ptr.

find_first_not_of() [1/2]

StringRef::size_type StringRef::find_first_not_of	(	char	C,
		size_t	From = 0
	)		const

Find the first character in the string that is not C or npos if not found.

find_first_not_of - Find the first character in the string that is not

• C or npos if not found.

Definition at line 260 of file StringRef.cpp.

References llvm::numbers::e, From, i, llvm::min(), and npos.

Referenced by llvm::SmallString< 256 >::find_first_not_of(), ParseLine(), and llvm::Regex::sub().

find_first_not_of() [2/2]

StringRef::size_type StringRef::find_first_not_of	(	StringRef	Chars,
		size_t	From = 0
	)		const

Find the first character in the string that is not in the string Chars, or npos if not found.

find_first_not_of - Find the first character in the string that is not in the string

Complexity: O(size() + Chars.size())

• Chars, or npos if not found.

Note: O(size() + Chars.size())

Definition at line 271 of file StringRef.cpp.

References llvm::numbers::e, From, i, llvm::min(), and npos.

find_first_of() [1/2]

size_t llvm::StringRef::find_first_of ( char  C, size_t  From = 0  ) const

inline

Find the first character in the string that is C, or npos if not found.

Same as find.

Definition at line 381 of file StringRef.h.

References llvm::find(), and From.

Referenced by llvm::SmallString< 256 >::find_first_of(), llvm::generateConvertInst(), llvm::InstrProfSymtab::getOrigFuncName(), llvm::yaml::ScalarNode::getValue(), llvm::RISCVISAInfo::parseArchString(), ParseLine(), llvm::sys::path::remove_dots(), and llvm::formatv_object_base::splitLiteralAndReplacement().

find_first_of() [2/2]

StringRef::size_type StringRef::find_first_of	(	StringRef	Chars,
		size_t	From = 0
	)		const

Find the first character in the string that is in Chars, or npos if not found.

find_first_of - Find the first character in the string that is in

Complexity: O(size() + Chars.size())

• Chars, or npos if not found.

Note: O(size() + Chars.size())

Definition at line 246 of file StringRef.cpp.

References llvm::numbers::e, From, i, llvm::min(), and npos.

find_if()

size_t llvm::StringRef::find_if ( function_ref< bool(char)>  F, size_t  From = 0  ) const

inline

Search for the first character satisfying the predicate F.

Returns

The index of the first character satisfying F starting from From, or npos if not found.

Definition at line 314 of file StringRef.h.

References F, From, S, and llvm::size().

Referenced by find_insensitive().

find_if_not()

size_t llvm::StringRef::find_if_not ( function_ref< bool(char)>  F, size_t  From = 0  ) const

inline

Search for the first character not satisfying the predicate F.

Returns

The index of the first character not satisfying F starting from From, or npos if not found.

Definition at line 329 of file StringRef.h.

References c, F, llvm::find_if(), and From.

find_insensitive() [1/2]

size_t StringRef::find_insensitive	(	char	C,
		size_t	From = 0
	)		const

Search for the first character C in the string, ignoring case.

Returns

The index of the first occurrence of C, or npos if not found.

Definition at line 55 of file StringRef.cpp.

References D, find_if(), and From.

find_insensitive() [2/2]

size_t StringRef::find_insensitive	(	StringRef	Str,
		size_t	From = 0
	)		const

Search for the first string Str in the string, ignoring case.

Returns

The index of the first occurrence of Str, or npos if not found.

Definition at line 192 of file StringRef.cpp.

References From, npos, substr(), and This.

find_last_not_of() [1/2]

StringRef::size_type StringRef::find_last_not_of	(	char	C,
		size_t	From = npos
	)		const

Find the last character in the string that is not C, or npos if not found.

find_last_not_of - Find the last character in the string that is not

• C, or npos if not found.

Definition at line 301 of file StringRef.cpp.

References llvm::numbers::e, From, i, llvm::min(), and npos.

find_last_not_of() [2/2]

StringRef::size_type StringRef::find_last_not_of	(	StringRef	Chars,
		size_t	From = npos
	)		const

Find the last character in the string that is not in Chars, or npos if not found.

find_last_not_of - Find the last character in the string that is not in

Complexity: O(size() + Chars.size())

• Chars, or npos if not found.

Note: O(size() + Chars.size())

Definition at line 312 of file StringRef.cpp.

References llvm::numbers::e, From, i, llvm::min(), and npos.

find_last_of() [1/2]

size_t llvm::StringRef::find_last_of ( char  C, size_t  From = npos  ) const

inline

Find the last character in the string that is C, or npos if not found.

Definition at line 404 of file StringRef.h.

References From.

Referenced by llvm::sys::path::extension(), llvm::SmallString< 256 >::find_last_of(), llvm::SourceMgr::getLineAndColumn(), llvm::yaml::Node::getVerbatimTag(), ParseLine(), and llvm::sys::path::stem().

find_last_of() [2/2]

StringRef::size_type StringRef::find_last_of	(	StringRef	Chars,
		size_t	From = npos
	)		const

Find the last character in the string that is in C, or npos if not found.

find_last_of - Find the last character in the string that is in

Complexity: O(size() + Chars.size())

• C, or npos if not found.

Note: O(size() + Chars.size())

Definition at line 287 of file StringRef.cpp.

References llvm::numbers::e, From, i, llvm::min(), and npos.

front()

char llvm::StringRef::front ( ) const

inline

front - Get the first character in the string.

Definition at line 140 of file StringRef.h.

References assert(), and llvm::Data.

Referenced by llvm::JITSymbolFlags::fromGlobalValue(), getQualifiedNameIndex(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), llvm::PassBuilder::parsePassPipeline(), llvm::formatv_object_base::parseReplacementItem(), llvm::sys::path::remove_dots(), llvm::MCContext::setGenDwarfRootFile(), and llvm::formatv_object_base::splitLiteralAndReplacement().

getAsDouble()

bool StringRef::getAsDouble	(	double &	Result,
		bool	AllowInexact = true
	)		const

Parse the current string as an IEEE double-precision floating point value.

The string must be a well-formed double.

If AllowInexact is false, the function will fail if the string cannot be represented exactly. Otherwise, the function only fails in case of an overflow or underflow, or an invalid floating point representation.

Definition at line 599 of file StringRef.cpp.

References llvm::errorToBool(), F, llvm::APFloatBase::opInexact, llvm::APFloatBase::opOK, and llvm::APFloatBase::rmNearestTiesToEven.

getAsInteger() [1/2]

bool StringRef::getAsInteger	(	unsigned	Radix,
		APInt &	Result
	)		const

Parse the current string as an integer of the specified Radix, or of an autosensed radix if the Radix given is 0.

The current value in Result is discarded, and the storage is changed to be wide enough to store the parsed integer.

Returns

true if the string does not solely consist of a valid non-empty number in the appropriate base.

APInt::fromString is superficially similar but assumes the string is well-formed in the given radix.

Definition at line 524 of file StringRef.cpp.

References assert(), llvm::BitWidth, and GetAutoSenseRadix().

getAsInteger() [2/2]

template<typename T >

bool llvm::StringRef::getAsInteger ( unsigned  Radix, T &  Result  ) const

inline

Parse the current string as an integer of the specified radix.

If Radix is specified as zero, this does radix autosensing using extended C rules: 0 is octal, 0x is hex, 0b is binary.

If the string is invalid or if only a subset of the string is valid, this returns true to signify the error. The string is considered erroneous if empty or if it overflows T.

Definition at line 474 of file StringRef.h.

References llvm::getAsSignedInteger(), llvm::getAsUnsignedInteger(), and T.

Referenced by adjustCallerStackProbeSize(), adjustMinLegalVectorWidth(), llvm::get_threadpool_strategy(), getArchiveMemberDecField(), getArchiveMemberOctField(), getExtensionVersion(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), getPassNameAndInstanceNum(), llvm::SystemZTargetLowering::getStackProbeSize(), llvm::PPCTargetLowering::getStackProbeSize(), llvm::X86TargetLowering::getStackProbeSize(), llvm::getStringFnAttrAsInt(), llvm::X86TargetMachine::getSubtargetImpl(), llvm::AMDGPU::Exp::getTgtId(), llvm::yaml::isInteger(), llvm::vfs::RedirectingFileSystemParser::parse(), llvm::parseCachePruningPolicy(), parseDuration(), ParseHead(), ParseLine(), parseMetadata(), parseRegisterNumber(), parseSectionFlags(), llvm::MCSectionMachO::ParseSectionSpecifier(), llvm::parseStatepointDirectivesFromAttrs(), llvm::StackProtector::runOnFunction(), llvm::AttributeFuncs::updateMinLegalVectorWidthAttr(), and llvm::writeArchiveToStream().

lower()

std::string StringRef::lower

(

)

const

Definition at line 112 of file StringRef.cpp.

References begin(), end(), and llvm::map_iterator().

Referenced by llvm::ELF::convertArchNameToEMachine(), llvm::MipsTargetAsmStreamer::emitDirectiveCpAdd(), llvm::MipsTargetAsmStreamer::emitDirectiveCpLoad(), llvm::MipsTargetAsmStreamer::emitDirectiveCpLocal(), llvm::MipsTargetAsmStreamer::emitDirectiveCpsetup(), llvm::MipsTargetAsmStreamer::emitFrame(), llvm::SparcTargetAsmStreamer::emitSparcRegisterIgnore(), llvm::SparcTargetAsmStreamer::emitSparcRegisterScratch(), llvm::VETargetAsmStreamer::emitVERegisterIgnore(), llvm::VETargetAsmStreamer::emitVERegisterScratch(), getBankedRegisterMask(), llvm::RISCVTargetLowering::getRegForInlineAsmConstraint(), getRegisterName(), llvm::ELFAttributeParser::parseSubsection(), llvm::MIPrinter::print(), llvm::MipsAsmPrinter::printOperand(), llvm::printRegClassOrBank(), llvm::SparcInstPrinter::printRegName(), llvm::ARCInstPrinter::printRegName(), llvm::XCoreInstPrinter::printRegName(), llvm::LanaiInstPrinter::printRegName(), and llvm::MipsInstPrinter::printRegName().

ltrim() [1/2]

StringRef llvm::StringRef::ltrim ( char  Char ) const

inline

Return string with consecutive Char characters starting from the the left removed.

Definition at line 783 of file StringRef.h.

References llvm::min().

Referenced by llvm::RuntimeDyldCheckerExprEval::evaluate(), llvm::Pattern::parseNumericSubstitutionBlock(), and llvm::VFABI::tryDemangleForVFABI().

ltrim() [2/2]

StringRef llvm::StringRef::ltrim ( StringRef  Chars = " \t\n\v\f\r" ) const

inline

Return string with consecutive characters in Chars starting from the left removed.

Definition at line 789 of file StringRef.h.

References llvm::min().

operator std::string_view()

llvm::StringRef::operator std::string_view ( ) const

inline

Definition at line 247 of file StringRef.h.

References llvm::size().

operator=()

template<typename T >

std::enable_if_t<std::is_same<T, std::string>::value, StringRef>& llvm::StringRef::operator= ( T &&  Str )

delete

Disallow accidental assignment from a temporary std::string.

The declaration here is extra complicated so that stringRef = {} and stringRef = "abc" continue to select the move assignment operator.

operator[]()

char llvm::StringRef::operator[] ( size_t  Index ) const

inline

Definition at line 230 of file StringRef.h.

References assert(), llvm::Data, and Index.

rfind() [1/2]

size_t llvm::StringRef::rfind ( char  C, size_t  From = npos  ) const

inline

Search for the last character C in the string.

Returns

The index of the last occurrence of C, or npos if not found.

Definition at line 350 of file StringRef.h.

References llvm::Data, From, i, and llvm::min().

Referenced by llvm::sampleprof::FunctionSamples::getCanonicalFnName(), getStringIndex(), llvm::object::MachOObjectFile::guessLibraryShortName(), ParseHead(), and llvm::SmallString< 256 >::rfind().

rfind() [2/2]

size_t StringRef::rfind

(

StringRef

Str

)

const

Search for the last string Str in the string.

rfind - Search for the last string

Returns

The index of the last occurrence of Str, or npos if not found.

• Str in the string.

Returns

- The index of the last occurrence of

• Str, or npos if not found.

Definition at line 218 of file StringRef.cpp.

References llvm::numbers::e, equals(), i, N, npos, and substr().

rfind_insensitive() [1/2]

size_t StringRef::rfind_insensitive	(	char	C,
		size_t	From = npos
	)		const

Search for the last character C in the string, ignoring case.

Returns

The index of the last occurrence of C, or npos if not found.

Definition at line 203 of file StringRef.cpp.

References From, i, llvm::min(), and npos.

rfind_insensitive() [2/2]

size_t StringRef::rfind_insensitive

(

StringRef

Str

)

const

Search for the last string Str in the string, ignoring case.

Returns

The index of the last occurrence of Str, or npos if not found.

Definition at line 230 of file StringRef.cpp.

References llvm::numbers::e, equals_insensitive(), i, N, npos, and substr().

rsplit() [1/2]

std::pair<StringRef, StringRef> llvm::StringRef::rsplit ( char  Separator ) const

inline

Split into two substrings around the last occurrence of a separator character.

If Separator is in the string, then the result is a pair (LHS, RHS) such that (*this == LHS + Separator + RHS) is true and RHS is minimal. If Separator is not in the string, then the result is a pair (LHS, RHS) where (*this == LHS) and (RHS == "").

Parameters

Separator

- The character to split on.

Returns

- The split substrings.

Definition at line 777 of file StringRef.h.

rsplit() [2/2]

std::pair<StringRef, StringRef> llvm::StringRef::rsplit ( StringRef  Separator ) const

inline

Split into two substrings around the last occurrence of a separator string.

If Separator is in the string, then the result is a pair (LHS, RHS) such that (*this == LHS + Separator + RHS) is true and RHS is minimal. If Separator is not in the string, then the result is a pair (LHS, RHS) where (*this == LHS) and (RHS == "").

Parameters

Separator

- The string to split on.

Returns

- The split substrings.

Definition at line 725 of file StringRef.h.

References size().

rtrim() [1/2]

StringRef llvm::StringRef::rtrim ( char  Char ) const

inline

Return string with consecutive Char characters starting from the right removed.

Definition at line 795 of file StringRef.h.

References llvm::min().

Referenced by llvm::RuntimeDyldCheckerExprEval::evaluate(), getFieldRawString(), getPayloadString(), llvm::Pattern::parseNumericSubstitutionBlock(), and trim().

rtrim() [2/2]

StringRef llvm::StringRef::rtrim ( StringRef  Chars = " \t\n\v\f\r" ) const

inline

Return string with consecutive characters in Chars starting from the right removed.

Definition at line 801 of file StringRef.h.

References llvm::min().

size()

constexpr size_t llvm::StringRef::size ( ) const

inlineconstexpr

size - Get the string size.

Definition at line 137 of file StringRef.h.

Referenced by llvm::Hexagon_MC::addArchSubtarget(), addSection(), angleBracketString(), llvm::Annotations::Annotations(), llvm::objcopy::elf::OwnedDataSection::appendHexData(), llvm::DWARFTypePrinter::appendTypeTagName(), argPlusPrefixesSize(), argPrefix(), llvm::RuntimeDyldCheckerImpl::checkAllRulesInBuffer(), checkArchVersion(), llvm::FunctionComparator::cmpMem(), computeStringTable(), constructSegment(), constructSymbolEntry(), consume_back(), consume_back_insensitive(), llvm::formatv_object_base::consumeFieldLayout(), llvm::consumeUnsignedInteger(), llvm::detail::IEEEFloat::convertFromString(), llvm::convertUTF8ToUTF16String(), llvm::StringMapEntry< llvm::Comdat >::Create(), llvm::sampleprof::SampleContext::createCtxVectorFromStr(), llvm::objcopy::coff::createGnuDebugLinkSectionContents(), llvm::jitlink::createLinkGraphFromELFObject(), llvm::decodeBase64(), llvm::DWARFUnit::determineStringOffsetsTableContributionDWO(), dumpStringOffsetsSection(), edit_distance(), edit_distance_insensitive(), llvm::BitstreamWriter::emitBlob(), llvm::DwarfStreamer::emitCIE(), llvm::DWARFYAML::emitDebugAbbrev(), llvm::DWARFYAML::emitDebugLine(), llvm::AMDGPUTargetELFStreamer::EmitDirectiveHSACodeObjectISAV2(), llvm::DwarfStreamer::emitFDE(), llvm::InstrProfRecordWriterTrait::EmitKeyDataLength(), llvm::DwarfStreamer::emitLineTableForUnit(), llvm::emitSourceFileHeader(), llvm::CodeViewContext::encodeDefRange(), llvm::sys::path::end(), llvm::sys::path::extension(), llvm::opt::OptTable::findNearest(), llvm::sys::unicode::findSyllable(), llvm::TernOpInit::Fold(), for(), formatPax(), llvm::DWARFUnit::getAddrOffsetSectionItem(), llvm::APInt::getBitsNeeded(), llvm::object::ELFFile< ELFT >::getBufSize(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), llvm::BPFTargetLowering::getConstraintType(), llvm::SparcTargetLowering::getConstraintType(), llvm::MSP430TargetLowering::getConstraintType(), llvm::AVRTargetLowering::getConstraintType(), llvm::M68kTargetLowering::getConstraintType(), llvm::VETargetLowering::getConstraintType(), llvm::HexagonTargetLowering::getConstraintType(), llvm::RISCVTargetLowering::getConstraintType(), llvm::SITargetLowering::getConstraintType(), llvm::SystemZTargetLowering::getConstraintType(), llvm::NVPTXTargetLowering::getConstraintType(), llvm::ARMTargetLowering::getConstraintType(), llvm::PPCTargetLowering::getConstraintType(), llvm::X86TargetLowering::getConstraintType(), llvm::TargetLowering::getConstraintType(), llvm::AsmToken::getEndLoc(), llvm::Triple::getEnvironmentVersion(), getExtensionVersion(), llvm::getFuncNameWithoutPrefix(), getHexUint(), llvm::HexagonInstrInfo::getInlineAsmLength(), llvm::RISCVTargetLowering::getInlineAsmMemConstraint(), llvm::SystemZTargetLowering::getInlineAsmMemConstraint(), llvm::ARMTargetLowering::getInlineAsmMemConstraint(), llvm::MDString::getLength(), llvm::DWARFContext::getLineTableForUnit(), getMemBufferCopyImpl(), llvm::object::ArchiveMemberHeader::getName(), llvm::object::Elf_Sym_Impl< ELFT >::getName(), llvm::WritableMemoryBuffer::getNewUninitMemBuffer(), getOptionPrefixesSize(), llvm::cl::generic_parser_base::getOptionWidth(), llvm::cl::basic_parser_impl::getOptionWidth(), llvm::OpenMPIRBuilder::getOrCreateSrcLocStr(), llvm::opt::ArgList::GetOrMakeJoinedArgString(), llvm::Triple::getOSVersion(), getQualifiedNameIndex(), llvm::object::BigArchiveMemberHeader::getRawName(), llvm::BPFTargetLowering::getRegForInlineAsmConstraint(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), llvm::LanaiTargetLowering::getRegForInlineAsmConstraint(), llvm::MSP430TargetLowering::getRegForInlineAsmConstraint(), llvm::AVRTargetLowering::getRegForInlineAsmConstraint(), llvm::M68kTargetLowering::getRegForInlineAsmConstraint(), llvm::VETargetLowering::getRegForInlineAsmConstraint(), llvm::HexagonTargetLowering::getRegForInlineAsmConstraint(), llvm::RISCVTargetLowering::getRegForInlineAsmConstraint(), llvm::SITargetLowering::getRegForInlineAsmConstraint(), llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(), llvm::NVPTXTargetLowering::getRegForInlineAsmConstraint(), llvm::ARMTargetLowering::getRegForInlineAsmConstraint(), llvm::PPCTargetLowering::getRegForInlineAsmConstraint(), llvm::X86TargetLowering::getRegForInlineAsmConstraint(), llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::object::ELFFile< ELFT >::getSectionName(), llvm::object::MachOObjectFile::getSectionSize(), llvm::gsym::StringTable::getString(), llvm::DWARFUnit::getStringOffsetSectionItem(), llvm::AMDGPU::Exp::getTgtId(), getUnicodeEncoding(), getUUID(), llvm::yaml::ScalarNode::getValue(), getVarName(), gsiRecordCmp(), llvm::object::MachOObjectFile::guessLibraryShortName(), isAsmComment(), llvm::TrigramIndex::isDefinitelyOut(), isImmConstraint(), LLVMGetNamedMetadataName(), llvm::gsym::FunctionInfo::lookup(), llvm::Intrinsic::lookupLLVMIntrinsicByName(), llvm::InlineAsmLowering::lowerAsmOperandForConstraint(), llvm::opt::DerivedArgList::MakeJoinedArg(), mapNameAndUniqueName(), matchOption(), maybeLexIndex(), maybeLexIndexAndName(), maybeLexIRBlock(), maybeLexIRValue(), maybeLexMCSymbol(), maybeLexSubRegisterIndex(), llvm::symbolize::MarkupParser::nextNode(), operator new(), llvm::jitlink::CompactUnwindSplitter::operator()(), llvm::DWARFExpression::iterator::operator++(), llvm::gsym::operator<<(), llvm::remarks::ParsedStringTable::operator[](), optimizeDoubleFP(), optimizeMemCmpVarSize(), optionMatches(), llvm::parseAnalysisUtilityPasses(), llvm::RISCVISAInfo::parseArchString(), llvm::RISCVISAInfo::parseFeatures(), ParseLine(), parseMagic(), llvm::Pattern::parsePattern(), parseRefinementStep(), parseRegisterNumber(), parseStrTab(), parseStrTabSize(), parseVersion(), printCFI(), PrintCFIEscape(), llvm::cl::Option::printEnumValHelpStr(), llvm::cl::generic_parser_base::printGenericOptionDiff(), PrintHelpOptionList(), printLine(), llvm::cl::generic_parser_base::printOptionInfo(), printSourceLine(), llvm::irsymtab::readBitcode(), readCoverageMappingData(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::reconstituteName(), llvm::LessRecordRegister::RecordParts::RecordParts(), llvm::sys::path::relative_path(), llvm::sys::path::remove_dots(), llvm::sys::path::replace_extension(), llvm::sys::path::replace_path_prefix(), llvm::report_fatal_error(), llvm::logicalview::LVElement::resolveFullname(), rsplit(), llvm::cl::Option::setArgStr(), singleLetterExtensionRank(), llvm::DIEInlineString::sizeOf(), split(), llvm::formatv_object_base::splitLiteralAndReplacement(), llvm::sys::unicode::startsWith(), llvm::sys::path::stem(), llvm::Regex::sub(), llvm::StringAttributeImpl::totalSizeToAlloc(), llvm::DwarfStreamer::translateLineTable(), llvm::codeview::TypeServer2Record::TypeServer2Record(), updateSection(), upgradeLoopTag(), llvm::writeFileAtomically(), and llvm::yaml::yaml2archive().

slice()

StringRef llvm::StringRef::slice ( size_t  Start, size_t  End  ) const

inline

Return a reference to the substring from [Start, End).

Parameters

Start	The index of the starting character in the substring; if the index is npos or greater than the length of the string then the empty substring will be returned.
End	The index following the last character to include in the substring. If this is npos or exceeds the number of characters remaining in the string, the string suffix (starting with Start) will be returned. If this is less than Start, an empty string will be returned.

Definition at line 676 of file StringRef.h.

Referenced by llvm::object::ObjectFile::createMachOObjectFile(), llvm::object::MachOObjectFile::guessLibraryShortName(), llvm::lookupBuiltin(), parseRegisterNumber(), printSourceLine(), llvm::formatv_object_base::splitLiteralAndReplacement(), llvm::Regex::sub(), and llvm::DwarfStreamer::translateLineTable().

split() [1/4]

std::pair<StringRef, StringRef> llvm::StringRef::split ( char  Separator ) const

inline

Split into two substrings around the first occurrence of a separator character.

If Separator is in the string, then the result is a pair (LHS, RHS) such that (*this == LHS + Separator + RHS) is true and RHS is maximal. If Separator is not in the string, then the result is a pair (LHS, RHS) where (*this == LHS) and (RHS == "").

Parameters

Separator

The character to split on.

Returns

The split substrings.

Definition at line 692 of file StringRef.h.

References split().

Referenced by addSection(), llvm::InlineAsm::collectAsmStrs(), llvm::MachO::Target::create(), llvm::sampleprof::SampleContext::createCtxVectorFromStr(), llvm::sampleprof::SampleContext::decodeContextString(), llvm::AMDGPU::HSAMD::MetadataStreamerMsgPackV3::emitKernelArg(), findSection(), llvm::findVCToolChainViaEnvironment(), forceAttributes(), llvm::Triple::getArchName(), llvm::codeview::getBytesAsCString(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), llvm::getDefaultDebuginfodUrls(), llvm::Triple::getEnvironmentName(), llvm::sys::detail::getHostCPUNameForARM(), llvm::sys::detail::getHostCPUNameForRISCV(), llvm::sys::detail::getHostCPUNameForS390x(), getIntOperandFromRegisterString(), getIntOperandsFromRegisterString(), getOpEnabled(), getOpRefinementSteps(), llvm::Triple::getOSAndEnvironmentName(), llvm::Triple::getOSName(), llvm::LoongArchTargetLowering::getRegisterByName(), getSearchPaths(), llvm::object::COFFObjectFile::getSectionName(), llvm::GCOVBuffer::getString(), llvm::codeview::getSymbolName(), llvm::Triple::getVendorName(), llvm::handleExecNameEncodedBEOpts(), llvm::handleExecNameEncodedOptimizerOpts(), isThumbFunction(), llvm::lookupBuiltin(), TailFoldingKind::operator=(), llvm::SpecialCaseList::parse(), llvm::PassBuilder::parseAAPipeline(), llvm::RISCVISAInfo::parseArchString(), parseCHRFilterFiles(), llvm::remarks::ParsedStringTable::ParsedStringTable(), parseNamePrefix(), llvm::MCSectionMachO::ParseSectionSpecifier(), llvm::cl::Option::printEnumValHelpStr(), llvm::cl::Option::printHelpStr(), printSymbolizedStackTrace(), llvm::DebugCounter::push_back(), llvm::readPGOFuncNameStrings(), llvm::GCOVBuffer::readString(), llvm::Hexagon_MC::selectHexagonCPU(), llvm::AMDGPU::IsaInfo::AMDGPUTargetID::setTargetIDFromTargetIDStream(), llvm::Regex::sub(), llvm::opt::OptTable::suggestValueCompletions(), and llvm::Triple::Triple().

split() [2/4]

void StringRef::split	(	SmallVectorImpl< StringRef > &	A,
		char	Separator,
		int	MaxSplit = -1,
		bool	KeepEmpty = true
	)		const

Split into substrings around the occurrences of a separator character.

Each substring is stored in A. If MaxSplit is >= 0, at most MaxSplit splits are done and consequently <= MaxSplit + 1 elements are added to A. If KeepEmpty is false, empty strings are not added to A. They still count when considering MaxSplit An useful invariant is that Separator.join(A) == *this if MaxSplit == -1 and KeepEmpty == true

Parameters

A	- Where to put the substrings.
Separator	- The string to split on.
MaxSplit	- The maximum number of times the string is split.
KeepEmpty	- True if empty substring should be added.

Definition at line 351 of file StringRef.cpp.

References npos, and S.

split() [3/4]

void StringRef::split	(	SmallVectorImpl< StringRef > &	A,
		StringRef	Separator,
		int	MaxSplit = -1,
		bool	KeepEmpty = true
	)		const

Split into substrings around the occurrences of a separator string.

Each substring is stored in A. If MaxSplit is >= 0, at most MaxSplit splits are done and consequently <= MaxSplit + 1 elements are added to A. If KeepEmpty is false, empty strings are not added to A. They still count when considering MaxSplit An useful invariant is that Separator.join(A) == *this if MaxSplit == -1 and KeepEmpty == true

Parameters

A	- Where to put the substrings.
Separator	- The string to split on.
MaxSplit	- The maximum number of times the string is split.
KeepEmpty	- True if empty substring should be added.

Definition at line 324 of file StringRef.cpp.

References npos, S, and size().

split() [4/4]

std::pair<StringRef, StringRef> llvm::StringRef::split ( StringRef  Separator ) const

inline

Split into two substrings around the first occurrence of a separator string.

If Separator is in the string, then the result is a pair (LHS, RHS) such that (*this == LHS + Separator + RHS) is true and RHS is maximal. If Separator is not in the string, then the result is a pair (LHS, RHS) where (*this == LHS) and (RHS == "").

Parameters

Separator

- The string to split on.

Returns

- The split substrings.

Definition at line 707 of file StringRef.h.

References llvm::find(), and size().

starts_with()

bool llvm::StringRef::starts_with ( StringRef  Prefix ) const

inline

Check if this string starts with the given Prefix.

Definition at line 256 of file StringRef.h.

References llvm::Data, and llvm::cl::Prefix.

starts_with_insensitive()

bool StringRef::starts_with_insensitive

(

StringRef

Prefix

)

const

Check if this string starts with the given Prefix, ignoring case.

Definition at line 45 of file StringRef.cpp.

References ascii_strncasecmp(), and llvm::cl::Prefix.

startswith()

bool llvm::StringRef::startswith ( StringRef  Prefix ) const

inline

Definition at line 260 of file StringRef.h.

References llvm::cl::Prefix, and llvm::sys::path::starts_with().

Referenced by llvm::DWARFTypePrinter::appendTypeTagName(), llvm::AsmLexer::AsmLexer(), llvm::ELFAttrs::attrTypeFromString(), llvm::RISCVABI::computeTargetABI(), computeTargetABI(), llvm::coverage::BinaryCoverageReader::create(), llvm::remarks::createYAMLParserFromMeta(), doesIgnoreDataTypeSuffix(), llvm::Attributor::emitRemark(), llvm::ARMTargetStreamer::emitTargetAttributes(), llvm::JITSymbolFlags::fromGlobalValue(), llvm::generateGroupInst(), llvm::AArch64::getArchExtFeature(), llvm::Triple::getEnvironmentVersion(), llvm::getFuncNameWithoutPrefix(), llvm::GCOVFunction::getName(), llvm::object::getNameType(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), llvm::opt::ArgList::GetOrMakeJoinedArgString(), llvm::Triple::getOSVersion(), llvm::SITargetLowering::getRegForInlineAsmConstraint(), llvm::yaml::Node::getVerbatimTag(), llvm::object::MachOObjectFile::guessLibraryShortName(), llvm::HexagonSubtarget::initializeSubtargetDependencies(), llvm::LTOModule::isBitcodeForTarget(), isCompressable(), llvm::objcopy::wasm::isDebugSection(), llvm::objcopy::coff::isDebugSection(), isDebugSection(), llvm::object::isDecorated(), llvm::MCSectionCOFF::isImplicitlyDiscardable(), llvm::objcopy::wasm::isLinkerSection(), llvm::isOpenCLBuiltinType(), llvm::isSPIRVBuiltinType(), llvm::objcopy::macho::SymbolEntry::isSwiftSymbol(), llvm::makeFollowupLoopID(), llvm::yaml::MappingTraits< std::unique_ptr< ELFYAML::Chunk > >::mapping(), matchOption(), llvm::Triple::normalize(), optimizeDoubleFP(), llvm::parseAnalysisUtilityPasses(), parseArch(), llvm::ARM::parseArchEndian(), llvm::RISCVISAInfo::parseArchString(), parseARMArch(), parseMetadata(), llvm::Pattern::parsePattern(), parseSubArch(), printSymbolizedStackTrace(), processGlobal(), llvm::RuntimeDyldCOFFI386::processRelocationRef(), llvm::RuntimeDyldCOFFThumb::processRelocationRef(), llvm::RuntimeDyldCOFFAArch64::processRelocationRef(), llvm::RuntimeDyldCOFFX86_64::processRelocationRef(), llvm::pruneCache(), llvm::TextInstrProfReader::readHeader(), llvm::TextInstrProfReader::readNextRecord(), llvm::object::replace(), replaceAndRemoveSections(), llvm::ThunkInserter< Derived >::run(), llvm::sampleprof::SampleContext::SampleContext(), llvm::pdb::NativeSession::searchForPdb(), llvm::HexagonTargetObjectFile::SelectSectionForGlobal(), llvm::SmallString< 256 >::startswith(), StripSymtab(), llvm::orc::DLLImportDefinitionGenerator::tryToGenerate(), updateAndRemoveSymbols(), and upgradeLoopTag().

startswith_insensitive()

bool llvm::StringRef::startswith_insensitive ( StringRef  Prefix ) const

inline

Definition at line 266 of file StringRef.h.

References llvm::cl::Prefix.

Referenced by matchOption().

str()

std::string llvm::StringRef::str ( ) const

inline

str - Get the contents as an std::string.

Definition at line 221 of file StringRef.h.

References llvm::Data.

Referenced by llvm::DwarfCompileUnit::addGlobalType(), llvm::DwarfCompileUnit::addGlobalTypeUnitType(), llvm::vfs::InMemoryFileSystem::addHardLink(), llvm::InstrProfCorrelatorImpl< IntPtrT >::addProbe(), llvm::DCData::addSuccessorLabel(), buildFrameDebugInfo(), llvm::cacheAnnotationFromMD(), checkOperandCount(), constructSymbolEntry(), llvm::sys::path::convert_to_slash(), llvm::Hexagon_MC::createHexagonMCSubtargetInfo(), llvm::MachO::Symbol::dump(), llvm::objcopy::wasm::dumpSectionToFile(), dumpSectionToFile(), llvm::AMDGPUAsmPrinter::emitFunctionEntryLabel(), llvm::objcopy::macho::executeObjcopyOnBinary(), llvm::objcopy::macho::executeObjcopyOnMachOUniversalBinary(), llvm::MCJIT::finalizeLoadedModules(), llvm::object::MachOObjectFile::findDsymObjectMembers(), findSection(), llvm::findVCToolChainViaCommandLine(), llvm::generateSampleImageInst(), llvm::DiagnosticLocation::getAbsolutePath(), getArgType(), llvm::DWARFFormValue::getAsCString(), llvm::Attribute::getAsString(), llvm::FieldInit::getAsString(), llvm::sampleprof::FunctionSamples::getCallSiteHash(), llvm::pdb::NativeSourceFile::getChecksum(), getExtensionVersion(), llvm::GlobalValue::getGlobalIdentifier(), llvm::DOTGraphTraits< DOTMachineFuncInfo * >::getGraphName(), llvm::DOTGraphTraits< DOTFuncInfo * >::getGraphName(), llvm::DOTGraphTraits< DOTFuncMSSAInfo * >::getGraphName(), getHighestNumericTupleInDirectory(), llvm::sys::fs::getMainExecutable(), llvm::vfs::File::getName(), llvm::SDNode::getOperationName(), getQualifiedNameIndex(), llvm::getSampledImageType(), llvm::pdb::PDBSymbolCompiland::getSourceFileName(), llvm::LoongArchTargetMachine::getSubtargetImpl(), llvm::RISCVTargetMachine::getSubtargetImpl(), llvm::CSKYTargetMachine::getSubtargetImpl(), llvm::HexagonTargetMachine::getSubtargetImpl(), llvm::SparcTargetMachine::getSubtargetImpl(), llvm::AArch64TargetMachine::getSubtargetImpl(), llvm::SystemZTargetMachine::getSubtargetImpl(), llvm::WebAssemblyTargetMachine::getSubtargetImpl(), llvm::M68kTargetMachine::getSubtargetImpl(), llvm::PPCTargetMachine::getSubtargetImpl(), llvm::ARMBaseTargetMachine::getSubtargetImpl(), llvm::MipsTargetMachine::getSubtargetImpl(), llvm::getSymbolicOperandMnemonic(), llvm::CompileUnit::getSysRoot(), llvm::Record::getValueAsBitOrUnset(), getWindowsSDKDirViaCommandLine(), llvm::objcopy::coff::handleArgs(), llvm::M68kSubtarget::initializeSubtargetDependencies(), LiveDebugValues::MLocTracker::LocIdxToName(), llvm::LockFileManager::LockFileManager(), llvm::lookupBuiltin(), lowerLLVMIntrinsicName(), mangleCoveragePath(), llvm::yaml::MappingTraits< const InterfaceFile * >::NormalizedTBD::NormalizedTBD(), llvm::vfs::RedirectingFileSystem::openFileForRead(), llvm::objcopy::elf::OwnedDataSection::OwnedDataSection(), llvm::RISCVISAInfo::parseArchString(), llvm::RISCVISAInfo::parseFeatures(), parseIRConstant(), llvm::dxil::ResourceBase::print(), llvm::MCDecodedPseudoProbe::print(), llvm::DivergencePropagator::printDefs(), llvm::dxil::ResourceBase::printKind(), processLoadCommands(), replaceWithCallToVeclib(), llvm::logicalview::LVScopeArray::resolveExtra(), llvm::PseudoProbeVerifier::runAfterPass(), llvm::IRSimilarity::IRInstructionData::setCalleeName(), llvm::vfs::RedirectingFileSystem::setExternalContentsPrefixDir(), llvm::vfs::YAMLVFSWriter::setOverlayDir(), smallData(), llvm::OutlinableRegion::splitCandidate(), llvm::Twine::str(), llvm::json::ObjectKey::str(), suffixed_name_or(), llvm::timeTraceProfilerWrite(), llvm::symbolize::toJSON(), llvm::AMDGPU::IsaInfo::AMDGPUTargetID::toString(), llvm::sampleprof::SampleContextFrame::toString(), llvm::sampleprof::SampleContext::toString(), and writeTimestampFile().

substr()

StringRef llvm::StringRef::substr ( size_t  Start, size_t  N = npos  ) const

inline

Return a reference to the substring from [Start, Start + N).

Parameters

Start	The index of the starting character in the substring; if the index is npos or greater than the length of the string then the empty substring will be returned.
N	The number of characters to included in the substring. If N exceeds the number of characters remaining in the string, the string suffix (starting with Start) will be returned.

Definition at line 564 of file StringRef.h.

References llvm::Data, llvm::min(), and N.

Referenced by llvm::Hexagon_MC::addArchSubtarget(), llvm::DWARFTypePrinter::appendTypeTagName(), CommaSeparateAndAddOccurrence(), llvm::consumeUnsignedInteger(), llvm::sampleprof::SampleContext::createCtxVectorFromStr(), emitComments(), llvm::DwarfStreamer::emitLocationsForUnit(), llvm::emitSourceFileHeader(), llvm::RuntimeDyldCheckerExprEval::evaluate(), ExpandBasePaths(), llvm::sys::path::extension(), find_insensitive(), llvm::MCJIT::findModuleForSymbol(), llvm::TernOpInit::Fold(), for(), llvm::JITSymbolFlags::fromGlobalValue(), llvm::AArch64::getArchExtFeature(), llvm::object::MachOUniversalBinary::ObjectForArch::getAsArchive(), llvm::object::MachOUniversalBinary::ObjectForArch::getAsIRObject(), llvm::object::MachOUniversalBinary::ObjectForArch::getAsObjectFile(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), llvm::TargetLowering::getConstraintType(), llvm::Triple::getEnvironmentVersion(), getOpEnabled(), getOpRefinementSteps(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), llvm::Triple::getOSVersion(), getQualifiedNameIndex(), llvm::getSampledImageType(), getStringIndex(), llvm::object::MachOObjectFile::getStringTableData(), llvm::AArch64::ArchNames::getSubArch(), llvm::ARM::ArchNames::getSubArch(), llvm::yaml::ScalarNode::getValue(), getVarName(), llvm::yaml::Node::getVerbatimTag(), HandlePrefixedOrGroupedOption(), llvm::isSpecialPass(), llvm::lookupBuiltin(), llvm::sys::path::parent_path(), llvm::parseAnalysisUtilityPasses(), llvm::RISCVISAInfo::parseArchString(), llvm::yaml::Document::parseBlockNode(), ParseHead(), ParseLine(), parseMetadata(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), llvm::GCOVBuffer::readGCDAFormat(), llvm::GCOVBuffer::readGCNOFormat(), llvm::TextInstrProfReader::readHeader(), llvm::sys::path::relative_path(), llvm::object::replace(), llvm::sys::path::replace_path_prefix(), rfind(), rfind_insensitive(), llvm::sys::path::root_path(), llvm::formatv_object_base::splitLiteralAndReplacement(), llvm::sys::path::stem(), llvm::SubtargetFeatures::StripFlag(), llvm::Regex::sub(), llvm::SmallString< 256 >::substr(), and llvm::UpgradeSectionAttributes().

take_back()

StringRef llvm::StringRef::take_back ( size_t  N = 1 ) const

inline

Return a StringRef equal to 'this' but with only the last N elements remaining.

If N is greater than the length of the string, the entire string is returned.

Definition at line 581 of file StringRef.h.

References N, and llvm::size().

take_front()

StringRef llvm::StringRef::take_front ( size_t  N = 1 ) const

inline

Return a StringRef equal to 'this' but with only the first N elements remaining.

If N is greater than the length of the string, the entire string is returned.

Definition at line 572 of file StringRef.h.

References N, and llvm::size().

Referenced by llvm::objcopy::elf::OwnedDataSection::appendHexData(), llvm::memprof::IndexedMemProfRecord::getGUID(), mapNameAndUniqueName(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::sys::path::remove_dots(), and llvm::formatv_object_base::splitLiteralAndReplacement().

take_until()

StringRef llvm::StringRef::take_until ( function_ref< bool(char)>  F ) const

inline

Return the longest prefix of 'this' such that no character in the prefix satisfies the given predicate.

Definition at line 595 of file StringRef.h.

References F, llvm::find_if(), and substr().

take_while()

StringRef llvm::StringRef::take_while ( function_ref< bool(char)>  F ) const

inline

Return the longest prefix of 'this' such that every character in the prefix satisfies the given predicate.

Definition at line 589 of file StringRef.h.

References F, llvm::find_if_not(), and substr().

Referenced by llvm::formatv_object_base::splitLiteralAndReplacement(), and llvm::VFABI::tryDemangleForVFABI().

trim() [1/2]

StringRef llvm::StringRef::trim ( char  Char ) const

inline

Return string with consecutive Char characters starting from the left and right removed.

Definition at line 807 of file StringRef.h.

References rtrim().

Referenced by llvm::RuntimeDyldCheckerImpl::check(), llvm::RuntimeDyldCheckerExprEval::evaluate(), llvm::DataExtractor::getFixedLengthString(), parseMetadata(), llvm::Pattern::parseNumericSubstitutionBlock(), and llvm::formatv_object_base::parseReplacementItem().

trim() [2/2]

StringRef llvm::StringRef::trim ( StringRef  Chars = " \t\n\v\f\r" ) const

inline

Return string with consecutive characters in Chars starting from the left and right removed.

Definition at line 813 of file StringRef.h.

References rtrim().

upper()

std::string StringRef::upper

(

)

const

Convert the given ASCII string to uppercase.

Definition at line 117 of file StringRef.cpp.

References begin(), end(), and llvm::map_iterator().

Member Data Documentation

npos

constexpr size_t StringRef::npos = ~size_t(0)

staticconstexpr

Definition at line 52 of file StringRef.h.

Referenced by llvm::X86FrameLowering::adjustForHiPEPrologue(), llvm::buildEnqueueKernel(), buildFixItLine(), CommaSeparateAndAddOccurrence(), count(), llvm::sys::fs::createTemporaryFile(), ExpandBasePaths(), llvm::sys::path::extension(), find(), find_first_not_of(), find_first_of(), find_insensitive(), find_last_not_of(), find_last_of(), llvm::SourceMgr::FindLocForLineAndColumn(), llvm::symbolize::SourceCode::format(), llvm::format_provider< T, std::enable_if_t< detail::use_string_formatter< T >::value > >::format(), llvm::ARM::getCanonicalArchName(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), llvm::sys::detail::getHostCPUNameForS390x(), getInstrStrFromOpNo(), llvm::SourceMgr::getLineAndColumn(), llvm::InstrProfSymtab::getOrigFuncName(), llvm::object::ArchiveMemberHeader::getRawName(), llvm::getTypeName(), getTypeNamePrefix(), llvm::yaml::ScalarNode::getValue(), llvm::object::MachOObjectFile::guessLibraryShortName(), hasWildcard(), llvm::Regex::isLiteralERE(), llvm::isSpecialPass(), llvm::DWARFLinker::link(), locateCStrings(), llvm::Intrinsic::lookupLLVMIntrinsicByName(), llvm::sys::path::reverse_iterator::operator++(), llvm::sys::path::parent_path(), llvm::RISCVISAInfo::parseArchString(), ParseLine(), llvm::Pattern::parseNumericSubstitutionBlock(), parseRefinementStep(), llvm::sys::printArg(), printSourceLine(), llvm::BinaryStreamReader::readCString(), llvm::sys::path::remove_dots(), llvm::sys::path::remove_filename(), llvm::object::replace(), llvm::sys::path::replace_extension(), rfind(), rfind_insensitive(), singleLetterExtensionRank(), split(), llvm::formatv_object_base::splitLiteralAndReplacement(), splitUstar(), llvm::sys::path::stem(), llvm::ifs::terminatedSubstr(), and llvm::UpgradeDataLayoutString().

---

The documentation for this class was generated from the following files:

• include/llvm/ADT/StringRef.h
• lib/Support/StringRef.cpp