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#ifndef _Standard_Transient_proto_HeaderFile
#define _Standard_Transient_proto_HeaderFile
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif
#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
class Handle_Standard_Transient;
class Standard_Type;
class Handle_Standard_Type;
//! Abstract class which forms the root of the entire
//! Transient class hierarchy.
class Standard_Transient
{
//---- uses the friend Standard_Transient class
friend class Handle(Standard_Transient);
public:
//! Operator new for placement in pre-allocated memory
void* operator new(size_t,void* anAddress)
{
return anAddress;
}
//! Operator new for memory allocation uses Open CASCADE memory manager
void* operator new(size_t size)
{
return Standard::Allocate(size);
}
//! Operator delete symmetric to operator new
void operator delete(void *anAddress)
{
if (anAddress) Standard::Free((Standard_Address&)anAddress);
}
//! Empty constructor
Standard_Transient() : count(0) {}
//! Copy constructor -- does nothing
Standard_Transient(const Standard_Transient&) : count(0) {}
//! Assignment operator, needed to avoid copying reference counter
Standard_Transient& operator= (const Standard_Transient&) { return *this; }
//! Destructor must be virtual
Standard_EXPORT virtual ~Standard_Transient();
//! Memory deallocator for transient classes
Standard_EXPORT virtual void Delete() const;
//! Returns a hash code value for this object.
//! The value is in the range 1..Upper.
Standard_EXPORT virtual Standard_Integer HashCode(const Standard_Integer Upper) const;
Standard_EXPORT virtual void ShallowDump(Standard_OStream& ) const;
//! Returns a type information object about this object.
Standard_EXPORT virtual const Handle_Standard_Type& DynamicType() const;
//! Returns a true value if this is an instance of Type.
Standard_EXPORT Standard_Boolean IsInstance(const Handle_Standard_Type& theType) const;
//! Returns a true value if this is an instance of TypeName.
Standard_EXPORT Standard_Boolean IsInstance(const Standard_CString theTypeName) const;
//! Returns true if this is an instance of Type or an
//! instance of any class that inherits from Type.
//! Note that multiple inheritance is not supported by OCCT RTTI mechanism.
Standard_EXPORT Standard_Boolean IsKind(const Handle_Standard_Type& theType) const;
//! Returns true if this is an instance of TypeName or an
//! instance of any class that inherits from TypeName.
//! Note that multiple inheritance is not supported by OCCT RTTI mechanism.
Standard_EXPORT Standard_Boolean IsKind(const Standard_CString theTypeName) const;
//! Returns a Handle which references this object.
//! Must never be called to objects created in stack.
Standard_EXPORT virtual Handle_Standard_Transient This() const;
//! Get the reference counter of this object.
Standard_EXPORT Standard_Integer GetRefCount() const { return count; }
private:
volatile Standard_Integer count;
};
Standard_EXPORT const Handle(Standard_Type)& STANDARD_TYPE(Standard_Transient);
#endif
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