CoreComponents 3.0.0
A Modern C++ Toolkit
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Object Class Reference

Object with value semantics More...

#include <cc/Object>

Inheritance diagram for Object:

Classes

class  State
 Reference counted object state. More...
 

Public Member Functions

 Object ()=default
 Create a null object.
 
 operator bool () const
 Check if this is a non-null object.
 
bool isNull () const
 Check if this is a null object.
 
template<class T >
bool is () const
 Check if this object is of type T.
 
template<class T >
as () const
 Cast this object to type T.
 
bool isWeak () const
 Check if the underlying object reference is weak.
 
bool operator== (const Object &other) const
 Equality operator.
 
std::strong_ordering operator<=> (const Object &other) const
 Ordering operator.
 
long useCount () const
 Reference count.
 

Protected Member Functions

template<class T >
weak () const
 
template<class T >
void initOnce ()
 Create the object state when called the first time.
 
template<class T >
void initOncePerThread ()
 Create a distinct object state for each thread when called the first time in that thread.
 
 Object (State *newState)
 Initialize object with newState.
 
 Object (State *state, Alias)
 
 Object (State *state, Weak)
 
Objectoperator= (std::nullptr_t)
 

Static Protected Member Functions

template<class T >
static T alias (const State *state)
 Create an alias object for the given state.
 
template<class T >
static T weak (const State *state)
 

Protected Attributes

Handle< Stateme
 Internal object state
 

Detailed Description

Object with value semantics

Constructor & Destructor Documentation

◆ Object() [1/2]

Object ( )
default

Create a null object.

◆ Object() [2/2]

Object ( State * newState)
explicitprotected

Initialize object with newState.

Member Function Documentation

◆ operator bool()

operator bool ( ) const
explicit

Check if this is a non-null object.

◆ isNull()

bool isNull ( ) const

Check if this is a null object.

◆ is()

template<class T >
bool is ( ) const

Check if this object is of type T.

◆ as()

template<class T >
T as ( ) const

Cast this object to type T.

◆ isWeak()

bool isWeak ( ) const

Check if the underlying object reference is weak.

◆ operator==()

bool operator== ( const Object & other) const

Equality operator.

◆ operator<=>()

std::strong_ordering operator<=> ( const Object & other) const

Ordering operator.

◆ useCount()

long useCount ( ) const

Reference count.

◆ alias()

template<class T >
static T alias ( const State * state)
staticprotected

Create an alias object for the given state.

Template Parameters
TType of object

◆ initOnce()

template<class T >
void initOnce ( )
protected

Create the object state when called the first time.

Template Parameters
TType of object state

◆ initOncePerThread()

template<class T >
void initOncePerThread ( )
protected

Create a distinct object state for each thread when called the first time in that thread.

Template Parameters
TType of object state

Member Data Documentation

◆ me

Handle<State> me
mutableprotected

Internal object state