cppgc::GarbageCollected< T > Class Template Reference

#include <garbage-collected.h>

Collaboration diagram for cppgc::GarbageCollected< T >:

Public Types
using	IsGarbageCollectedTypeMarker = void
using	ParentMostGarbageCollectedType = T

Public Member Functions
void *	operator new (size_t)=delete
void *	operator new[] (size_t)=delete
void	operator delete (void *)
void	operator delete[] (void *)=delete

Protected Member Functions
	GarbageCollected ()=default

Detailed Description

template<typename T>
class cppgc::GarbageCollected< T >

Base class for managed objects. Only descendent types of GarbageCollected can be constructed using MakeGarbageCollected(). Must be inherited from as left-most base class.

Types inheriting from GarbageCollected must provide a method of signature void Trace(cppgc::Visitor*) const that dispatchs all managed pointers to the visitor and delegates to garbage-collected base classes. The method must be virtual if the type is not directly a child of GarbageCollected and marked as final.

// Example using final class.
class FinalType final : public GarbageCollected<FinalType> {
 public:
  void Trace(cppgc::Visitor* visitor) const {
    // Dispatch using visitor->Trace(...);
  }
};
 
// Example using non-final base class.
class NonFinalBase : public GarbageCollected<NonFinalBase> {
 public:
  virtual void Trace(cppgc::Visitor*) const {}
};
 
class FinalChild final : public NonFinalBase {
 public:
  void Trace(cppgc::Visitor* visitor) const final {
    // Dispatch using visitor->Trace(...);
    NonFinalBase::Trace(visitor);
  }
};

Definition at line 53 of file garbage-collected.h.

Member Typedef Documentation

IsGarbageCollectedTypeMarker

template<typename T >

using cppgc::GarbageCollected< T >::IsGarbageCollectedTypeMarker = void

Definition at line 55 of file garbage-collected.h.

ParentMostGarbageCollectedType

template<typename T >

using cppgc::GarbageCollected< T >::ParentMostGarbageCollectedType = T

Definition at line 56 of file garbage-collected.h.

Constructor & Destructor Documentation

GarbageCollected()

template<typename T >

cppgc::GarbageCollected< T >::GarbageCollected ( )

protecteddefault

Member Function Documentation

operator delete()

template<typename T >

void cppgc::GarbageCollected< T >::operator delete ( void * )

inline

Definition at line 63 of file garbage-collected.h.

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operator delete[]()

template<typename T >

void cppgc::GarbageCollected< T >::operator delete[] ( void * )

delete

operator new()

template<typename T >

void * cppgc::GarbageCollected< T >::operator new ( size_t )

delete

operator new[]()

template<typename T >

void * cppgc::GarbageCollected< T >::operator new[] ( size_t )

delete

---

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

• include/cppgc/garbage-collected.h