LiteralId Class Reference

#include <apibaseid.h>

Inheritance diagram for LiteralId:

Detailed Description

LiteralId is used as base class of Id. It may only be used for strings such as string literals which have a longer lifetime than the LiteralId object itself. The benefit is that LiteralId is a literal type and has a trivial destructor.

Public Member Functions
constexpr	LiteralId ()
	LiteralId (const LiteralId &)=default
MAXON_IMPLICIT	LiteralId (const Id &)=delete
LiteralId &	operator= (const LiteralId &)=default
LiteralId &	operator= (const Id &)=delete
template<UInt N>
constexpr	LiteralId (const Char(&str)[N])
Bool	operator== (const LiteralId &other) const
Bool	operator< (const LiteralId &other) const
	MAXON_OPERATOR_COMPARISON (LiteralId)
COMPARERESULT	Compare (const LiteralId &other) const
UInt	GetHashCode () const
Bool	IsEmpty () const
Bool	IsPopulated () const
const Char *	GetCString () const
Int	GetCStringLength () const
String	ToString (const FormatStatement *formatStatement) const
CString	ToCString () const
Block< const Char >	ToBlock () const
const Id &	Get () const
	operator const Id & () const
Bool	UsesRefCountedCString () const
template<UInt N>
constexpr	LiteralId (bool dummy, const Char(&str)[N])
constexpr	LiteralId (bool dummy, const LiteralId &src)
template<typename T , typename = typename T::DeclarationHelper>
constexpr	LiteralId (bool dummy, const T &decl)

Static Public Attributes
static const Int	MAX_LENGTH_EXPONENT
static const UInt	LOW_HASH_MASK
static const Int	MAX_LENGTH

Protected Member Functions
constexpr	LiteralId (const Char *value, UInt hash)
	LiteralId (ENUM_DONT_INITIALIZE)

Static Protected Member Functions
static UInt	GetHashCode (const Char *str)
template<UInt N>
static constexpr UInt	GetHashCode (const Char(&str)[N], UInt h=0, UInt i=0)

Protected Attributes
const Char *	_value
UInt	_hash

Static Protected Attributes
static const Int	RC_STRING_BIT
static const UInt	RC_STRING_MASK
static const UInt	HASH_MASK

Friends
class	EntityBase

Constructor & Destructor Documentation

LiteralId() [1/9]

constexpr LiteralId ( )

constexpr

LiteralId() [2/9]

LiteralId ( const LiteralId &  )

default

LiteralId() [3/9]

MAXON_IMPLICIT LiteralId ( const Id &  )

delete

LiteralId() [4/9]

constexpr LiteralId ( const Char(&)  str[N] )

explicitconstexpr

LiteralId() [5/9]

constexpr LiteralId ( bool  dummy, const Char(&)  str[N]  )

constexpr

LiteralId() [6/9]

constexpr LiteralId ( bool  dummy, const LiteralId &  src  )

constexpr

LiteralId() [7/9]

constexpr LiteralId ( bool  dummy, const T &  decl  )

constexpr

LiteralId() [8/9]

constexpr LiteralId ( const Char *  value, UInt  hash  )

constexprprotected

LiteralId() [9/9]

LiteralId ( ENUM_DONT_INITIALIZE  )

explicitprotected

Member Function Documentation

operator=() [1/2]

LiteralId& operator= ( const LiteralId &  )

default

operator=() [2/2]

LiteralId& operator= ( const Id &  )

delete

operator==()

Bool operator==

(

const LiteralId &

other

)

const

operator<()

Bool operator<

(

const LiteralId &

other

)

const

MAXON_OPERATOR_COMPARISON()

MAXON_OPERATOR_COMPARISON

(

LiteralId

)

Compare()

COMPARERESULT Compare

(

const LiteralId &

other

)

const

Compares two Id objects using the lexicographic order.

Parameters

[in]

other

Other Id object.

Returns

See COMPARERESULT.

GetHashCode() [1/3]

UInt GetHashCode

(

)

const

IsEmpty()

Bool IsEmpty

(

)

const

Checks if the Id is empty.

Returns

True if the Id contains a nullptr as c-string.

IsPopulated()

Bool IsPopulated

(

void

)

const

Checks if this Id contains anything.

Returns

True if the ID contains a c-string.

GetCString()

const Char* GetCString

(

)

const

Returns the internal c-string. No copy is made.

Returns

Internal string.

GetCStringLength()

Int GetCStringLength

(

)

const

Returns the length of the internal c-string. This function doesn't have to scan the string, because the length is directly available in the Id.

Returns

Length of internal string.

ToString()

String ToString

(

const FormatStatement *

formatStatement

)

const

Returns a readable string of the content.

Parameters

[in]

formatStatement

Nullptr or additional formatting instruction. Currently no additional formatting instructions are supported.

Returns

The converted result.

ToCString()

CString ToCString

(

)

const

Get()

const Id& Get

(

void

)

const

operator const Id &()

operator const Id &

(

)

const

UsesRefCountedCString()

Bool UsesRefCountedCString

(

)

const

Returns true if this Id uses a RefCountedCString. Otherwise, the Id uses a global c-string which is assumed to persist at least as long as the Id.

Returns

True if the Id uses a RefCountedCString.

GetHashCode() [2/3]

static UInt GetHashCode ( const Char *  str )

staticprotected

GetHashCode() [3/3]

static constexpr UInt GetHashCode ( const Char(&)  str[N], UInt  h = 0, UInt  i = 0  )

staticconstexprprotected

Friends And Related Function Documentation

EntityBase

friend class EntityBase

friend

Member Data Documentation

MAX_LENGTH_EXPONENT

const Int MAX_LENGTH_EXPONENT

static

LOW_HASH_MASK

const UInt LOW_HASH_MASK

static

Mask for the lower bits of the hash (the part which corresponds to the hash code of the string).

RC_STRING_BIT

const Int RC_STRING_BIT

staticprotected

Bit position in _hash of the bit which is set when the Id uses a RefCountedCString.

RC_STRING_MASK

const UInt RC_STRING_MASK

staticprotected

Mask to get the RC_STRING_BIT from _hash.

HASH_MASK

const UInt HASH_MASK

staticprotected

Mask to get the hash code from _hash.

MAX_LENGTH

const Int MAX_LENGTH

static

_value

const Char* _value

protected

C-string identifier. If the RC_STRING_BIT is set in _hash, this actually points to the _string part of a RefCountedCString.

_hash

UInt _hash

protected

Combination of hash code (lower bits), then a bit at RC_STRING_BIT and finally the string length (MAX_LENGTH_EXPONENT bits). Use HASH_MASK to mask out the RC_STRING_BIT.