LLVM  16.0.0git
Public Types | Static Public Attributes | List of all members
llvm::StringRef Class Reference

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

#include "llvm/ADT/StringRef.h"

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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, StringRefsplit (char Separator) const
 Split into two substrings around the first occurrence of a separator character. More...
 
std::pair< StringRef, StringRefsplit (StringRef Separator) const
 Split into two substrings around the first occurrence of a separator string. More...
 
std::pair< StringRef, StringRefrsplit (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, StringRefrsplit (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

Definition at line 55 of file StringRef.h.

◆ iterator

Definition at line 54 of file StringRef.h.

◆ size_type

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

◆ 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

◆ 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

◆ 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

◆ 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

◆ 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
Otherthe string to compare this string against.
AllowReplacementswhether to allow character replacements (change one character into another) as a single operation, rather than as two operations (an insertion and a removal).
MaxEditDistanceIf 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

◆ 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

◆ 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

◆ 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_insensitive()

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

◆ find() [1/2]

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

◆ 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_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

◆ 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

◆ lower()

std::string StringRef::lower ( ) const

◆ 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
StartThe 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.
EndThe 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
SeparatorThe 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
StartThe 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.
NThe 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

◆ 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: