LLVM: llvm::StringSwitch< T, R > Class Template Reference

LLVM API Documentation

A switch()-like statement whose cases are string literals. More...

#include <StringSwitch.h>

List of all members.

Public Member Functions
	StringSwitch (StringRef S)
template<unsigned N>
StringSwitch &	Case (const char(&S)[N], const T &Value)
template<unsigned N>
StringSwitch &	EndsWith (const char(&S)[N], const T &Value)
template<unsigned N>
StringSwitch &	StartsWith (const char(&S)[N], const T &Value)
template<unsigned N0, unsigned N1>
StringSwitch &	Cases (const char(&S0)[N0], const char(&S1)[N1], const T &Value)
template<unsigned N0, unsigned N1, unsigned N2>
StringSwitch &	Cases (const char(&S0)[N0], const char(&S1)[N1], const char(&S2)[N2], const T &Value)
template<unsigned N0, unsigned N1, unsigned N2, unsigned N3>
StringSwitch &	Cases (const char(&S0)[N0], const char(&S1)[N1], const char(&S2)[N2], const char(&S3)[N3], const T &Value)
template<unsigned N0, unsigned N1, unsigned N2, unsigned N3, unsigned N4>
StringSwitch &	Cases (const char(&S0)[N0], const char(&S1)[N1], const char(&S2)[N2], const char(&S3)[N3], const char(&S4)[N4], const T &Value)
R	Default (const T &Value) const
	operator R () const

Detailed Description

template<typename T, typename R = T>
class llvm::StringSwitch< T, R >

A switch()-like statement whose cases are string literals.

The StringSwitch class is a simple form of a switch() statement that determines whether the given string matches one of the given string literals. The template type parameter T is the type of the value that will be returned from the string-switch expression. For example, the following code switches on the name of a color in argv[i]:

 Color color = StringSwitch<Color>(argv[i])
   .Case("red", Red)
   .Case("orange", Orange)
   .Case("yellow", Yellow)
   .Case("green", Green)
   .Case("blue", Blue)
   .Case("indigo", Indigo)
   .Cases("violet", "purple", Violet)
   .Default(UnknownColor);

Definition at line 42 of file StringSwitch.h.

Constructor & Destructor Documentation

template<typename T , typename R = T>

llvm::StringSwitch< T, R >::StringSwitch ( StringRef S ) [inline, explicit]

Definition at line 51 of file StringSwitch.h.

Member Function Documentation

template<typename T , typename R = T>

template<unsigned N>

StringSwitch& llvm::StringSwitch< T, R >::Case	(	const char(&)	S[N],
		const T &	Value
	)		`[inline]`

Definition at line 55 of file StringSwitch.h.

References llvm::StringRef::data(), llvm::LibFunc::memcmp, and llvm::StringRef::size().

Referenced by llvm::AArch64StringToVectorLayout(), llvm::StringSwitch< T, R >::Cases(), llvm::DWARFContextInMemory::DWARFContextInMemory(), llvm::Triple::getArchTypeForLLVMName(), llvm::Triple::getARMCPUForArch(), llvm::objcarc::GetFunctionClass(), llvm::PPCTargetLowering::getRegisterByName(), llvm::object::MachOObjectFile::isValidArch(), LowerINTRINSIC_W_CHAIN(), MCAttrForString(), parseArch(), llvm::SparcMCExpr::parseVariantKind(), parseVendor(), and RecognizePersonality().

template<typename T , typename R = T>

template<unsigned N0, unsigned N1>

StringSwitch& llvm::StringSwitch< T, R >::Cases	(	const char(&)	S0[N0],
		const char(&)	S1[N1],
		const T &	Value
	)		`[inline]`

Definition at line 85 of file StringSwitch.h.

References llvm::StringSwitch< T, R >::Case().

Referenced by llvm::createARMAsmBackend(), llvm::Triple::getARMCPUForArch(), getIntelMemOperandSize(), MCAttrForString(), and parseArch().

template<typename T , typename R = T>

template<unsigned N0, unsigned N1, unsigned N2>

StringSwitch& llvm::StringSwitch< T, R >::Cases	(	const char(&)	S0[N0],
		const char(&)	S1[N1],
		const char(&)	S2[N2],
		const T &	Value
	)		`[inline]`

Definition at line 91 of file StringSwitch.h.

References llvm::StringSwitch< T, R >::Case().

template<typename T , typename R = T>

template<unsigned N0, unsigned N1, unsigned N2, unsigned N3>

StringSwitch& llvm::StringSwitch< T, R >::Cases	(	const char(&)	S0[N0],
		const char(&)	S1[N1],
		const char(&)	S2[N2],
		const char(&)	S3[N3],
		const T &	Value
	)		`[inline]`

Definition at line 97 of file StringSwitch.h.

References llvm::StringSwitch< T, R >::Case().

template<typename T , typename R = T>

template<unsigned N0, unsigned N1, unsigned N2, unsigned N3, unsigned N4>

StringSwitch& llvm::StringSwitch< T, R >::Cases	(	const char(&)	S0[N0],
		const char(&)	S1[N1],
		const char(&)	S2[N2],
		const char(&)	S3[N3],
		const char(&)	S4[N4],
		const T &	Value
	)		`[inline]`

Definition at line 104 of file StringSwitch.h.

References llvm::StringSwitch< T, R >::Case().

template<typename T , typename R = T>

R llvm::StringSwitch< T, R >::Default ( const T & Value ) const [inline]

template<typename T , typename R = T>

template<unsigned N>

StringSwitch& llvm::StringSwitch< T, R >::EndsWith	(	const char(&)	S[N],
		const T &	Value
	)		`[inline]`

Definition at line 65 of file StringSwitch.h.

References llvm::StringRef::data(), llvm::LibFunc::memcmp, and llvm::StringRef::size().

Referenced by parseFormat(), and parseSubArch().

template<typename T , typename R = T>

llvm::StringSwitch< T, R >::operator R ( ) const [inline]

Definition at line 118 of file StringSwitch.h.

template<typename T , typename R = T>

template<unsigned N>

StringSwitch& llvm::StringSwitch< T, R >::StartsWith	(	const char(&)	S[N],
		const T &	Value
	)		`[inline]`

Definition at line 75 of file StringSwitch.h.

References llvm::StringRef::data(), llvm::LibFunc::memcmp, and llvm::StringRef::size().

Referenced by parseArch(), parseEnvironment(), and parseOS().

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

StringSwitch.h