by::nulStela 클래스 참조

Null stela node representing empty or undefined values 더 자세히 ...

#include <nulStela.hpp>

by::nulStela에 대한 상속 다이어그램 :

Public 멤버 함수
const std::string &	asStr () const override
	Converts the stela object's value to a string.
nchar	asChar () const override
	Converts the stela object's value to a character.
nint	asInt () const override
	Converts the stela object's value to an integer.
nbool	asBool () const override
	Converts the stela object's value to a boolean.
const type &	getType () const override
nbool	isExist () const override
	Checks if the stela object is considered "existent" (i.e., not a nulStela).
by::stela(으)로부터 상속된 Public 멤버 함수
	stela (std::initializer_list< me * > subs, const std::string &name="")
	Constructs a stela object with an optional name and an initializer list of child stela objects.
	stela (const me &rhs, const std::string &name="")
	stela (const std::string &name="")
me &	operator[] (const std::string &name)
const me &	operator[] (const std::string &name) const BY_CONST_FUNC(operator[](name))
me &	operator[] (const nchar *name)
const me &	operator[] (const nchar *name) const BY_CONST_FUNC(operator[](name))
	operator nbool () const
	Converts the stela object to a boolean, indicating its existence.
me &	sub (const std::string &name)
me &	sub (const std::string *it) BY_SIDE_FUNC(it
const me &sub(nidx n) const BY_CONST_FUNC(sub(n)) nbool has(const std nbool	has (const std::string *it) const BY_SIDE_FUNC(has)
void	add (const stela &it)
	Adds a stela object as a child.
void	add (const stela *it) BY_SIDE_FUNC(add)
	Adds a stela object as a child.
void	add (std::initializer_list< stela * > subs)
	Adds multiple stela objects from an initializer list as children.
void	del (const stela &it)
void	del (const stela *it) BY_SIDE_FUNC(del)
void	del (const std::string &name)
void	del (const std::string *it) BY_SIDE_FUNC(del)
void	del (const nchar *name)
const std::string &	getName () const
void	setName (const std::string &newName)
void	setName (const std::string *it) BY_SIDE_FUNC(setName)
void	setName (const nchar *newName)
ncnt	len () const
iterator	begin ()
iterator	end ()
const type &	getType () const override
by::instance(으)로부터 상속된 Public 멤버 함수
	instance (id newId)
	instance (const me &rhs)
me &	operator= (const me &rhs)=default
void *	operator new (size_t sz) noexcept
void	operator delete (void *pt, size_t sz) noexcept
virtual id	getId () const
virtual nbool	isHeap () const
	Checks if this instance is allocated on the heap.
const life *	getBindTag () const
	Returns a pointer to the associated life object for reference counting.
by::typeProvidable(으)로부터 상속된 Public 멤버 함수
nbool	operator== (const me &rhs) const
nbool	operator!= (const me &rhs) const
nbool	isSub (const type &it) const
nbool	isSub (const type *it) const BY_SIDE_FUNC(isSub)
nbool	isSub (const me &it) const
nbool	isSub (const me *it) const BY_SIDE_FUNC(isSub)
nbool	isSuper (const type &it) const
nbool	isSuper (const type *it) const BY_SIDE_FUNC(isSuper)
nbool	isSuper (const me &it) const
nbool	isSuper (const me *it) const BY_SIDE_FUNC(isSuper)
template<typename T >
nint	isSub () const
template<typename T >
nint	isSuper () const
template<typename T >
T *	cast ()
template<typename T >
const T *	cast () const BY_CONST_FUNC(cast< T >()) virtual void *cast(const type &to)
	Safe cast to target type using type hierarchy information
const void *	cast (const type &to) const BY_CONST_FUNC(cast(to)) void *cast(const type *it) BY_SIDE_FUNC(cast)
by::clonable(으)로부터 상속된 Public 멤버 함수
virtual me *	clone () const =0
virtual me *	cloneDeep () const
virtual void	onCloneDeep (const me &from)

정적 Public 멤버 함수
static me &	get ()
by::instance(으)로부터 상속된 정적 Public 멤버 함수
static vault &	getVault ()

추가로 상속된 멤버들
by::stela(으)로부터 상속된 Public 속성
me sub	it
me sub *	this
const me &sub(const std::string &name) const BY_CONST_FUNC(sub(name)) const me &sub(const std const me	sub )(const nchar *name) const BY_CONST_FUNC(sub(name)) me &sub(nidx n)
by::instance(으)로부터 상속된 Protected 멤버 함수
nbool	_setId (id new1)
by::instance(으)로부터 상속된 정적 Protected 멤버 함수
static instancer *	_getMgr ()

상세한 설명

Null stela node representing empty or undefined values

When retrieving child objects from Stela, usually by name, if no child with that name exists, nulStela is returned instead.

nulStela implements the null object pattern. When value conversion is requested on this object, it always returns the default value for that type.

Remarks

Checking for nulStela To verify if a stela object is nulStela, check if isExist() or operator bool() returns false.

멤버 함수 문서화

asBool()

nbool by::nulStela::asBool ( ) const

overridevirtual

Converts the stela object's value to a boolean.

If the stela object has no value or is a nulStela, it returns false. If the conversion from its internal type (e.g., string) fails, an exception may be thrown.

반환값

The boolean representation of the stela object's value.

by::stela(으)로부터 재구현되었습니다.

asChar()

nchar by::nulStela::asChar ( ) const

overridevirtual

Converts the stela object's value to a character.

If the stela object has no value or is a nulStela, it returns a null character ('\0'). If the conversion from its internal type (e.g., string) fails, an exception may be thrown.

반환값

The character representation of the stela object's value.

by::stela(으)로부터 재구현되었습니다.

asInt()

nint by::nulStela::asInt ( ) const

overridevirtual

Converts the stela object's value to an integer.

If the stela object has no value or is a nulStela, it returns 0. If the conversion from its internal type (e.g., string) fails, an exception may be thrown.

반환값

The integer representation of the stela object's value.

by::stela(으)로부터 재구현되었습니다.

asStr()

const std::string & by::nulStela::asStr ( ) const

overridevirtual

Converts the stela object's value to a string.

If the stela object has no value or is a nulStela, it returns an empty string.

반환값

A const reference to the string representation of the stela object's value.

by::stela(으)로부터 재구현되었습니다.

getType()

const type & by::nulStela::getType ( ) const

overridevirtual

by::typeProvidable를 구현.

isExist()

nbool by::nulStela::isExist ( ) const

overridevirtual

Checks if the stela object is considered "existent" (i.e., not a nulStela).

반환값

true if the stela object holds a value, false if it represents a null or non-existent entry.

by::stela(으)로부터 재구현되었습니다.

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