+++ /dev/null
-// Copyright (c) 1998-1999 Matra Datavision
-// Copyright (c) 1999-2014 OPEN CASCADE SAS
-//
-// This file is part of Open CASCADE Technology software library.
-//
-// This library is free software; you can redistribute it and/or modify it under
-// the terms of the GNU Lesser General Public License version 2.1 as published
-// by the Free Software Foundation, with special exception defined in the file
-// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
-// distribution for complete text of the license and disclaimer of any warranty.
-//
-// Alternatively, this file may be used under the terms of Open CASCADE
-// commercial license or contractual agreement.
-
-#ifndef _Handle_Standard_Transient_HeaderFile
-#define _Handle_Standard_Transient_HeaderFile
-
-#include <Standard.hxx>
-#include <Standard_DefineAlloc.hxx>
-#include <Standard_PrimitiveTypes.hxx>
-#include <Standard_Transient_proto.hxx>
-
-#ifdef _WIN32
-// Disable the warning "conversion from 'unsigned int' to Standard_Transient *"
-#pragma warning (push)
-#pragma warning (disable:4312)
-#endif
-
-class Handle_Standard_Transient;
-
-Standard_EXPORT Standard_Integer HashCode(const Handle(Standard_Transient)& ,const Standard_Integer);
-
-/**
- * Base class for hierarchy of smart pointers (Handles) for Transient
- * objects. Uses reference counting technique to control life time
- * of the referred object.
- *
- * Note that Handle should never be initialized by pointer to object
- * created in the stack; only dinamically allocated pointers shall be used.
- */
-
-class Handle(Standard_Transient)
-{
-public:
-
- // Public methods
-
- //! Empty constructor
- Handle(Standard_Transient) ()
- : entity(0)
- {
- }
-
- //! Constructor from pointer to new object
- Handle(Standard_Transient) (const Standard_Transient *anItem)
- : entity ( (Standard_Transient*)anItem )
- {
- BeginScope();
- }
-
- //! Copy constructor
- Handle(Standard_Transient) (const Handle(Standard_Transient)& aTid)
- : entity ( aTid.entity )
- {
- BeginScope();
- }
-
- //! Destructor
- ~Handle(Standard_Transient)()
- {
- EndScope();
- }
-
- //! Assignment operator
- Handle(Standard_Transient)& operator=(const Handle(Standard_Transient)& aHandle)
- {
- Assign(aHandle.Access());
- return *this;
- }
-
- //! Assignment operator
- Handle(Standard_Transient)& operator=(const Standard_Transient* anItem)
- {
- Assign(anItem);
- return *this;
- }
-
- //! Nullify the handle
- void Nullify()
- {
- EndScope();
- }
-
- //! Check for being null
- Standard_Boolean IsNull() const
- {
- return entity == 0;
- }
-
- //! Returns pointer to referred object
- Standard_Transient* Access()
- {
- return entity;
- }
-
- //! Returns const pointer to referred object
- const Standard_Transient* Access() const
- {
- return entity;
- }
-
- //! Cast to pointer to referred object
- operator Standard_Transient*()
- {
- return entity;
- }
-
- //! Cast to const pointer to referred object
- operator const Standard_Transient*() const
- {
- return entity;
- }
-
- //! Member access operator (note non-const)
- Standard_Transient* operator->() const
- {
- return entity;
- }
-
- //! STL-style member accessor
- Standard_Transient* get() const
- {
- return entity;
- }
-
- //! Dereferencing operator
- Standard_Transient& operator*()
- {
- return *entity;
- }
-
- //! Const dereferencing operator
- const Standard_Transient& operator*() const
- {
- return *entity;
- }
-
- //! Check for equality
- int operator==(const Handle(Standard_Transient)& right) const
- {
- return entity == right.entity;
- }
-
- //! Check for equality
- int operator==(const Standard_Transient *right) const
- {
- return entity == right;
- }
-
- //! Check for equality
- friend bool operator==(const Standard_Transient *left, const Handle(Standard_Transient)& right)
- {
- return left == right.entity;
- }
-
- //! Check for inequality
- bool operator!=(const Handle(Standard_Transient)& right) const
- {
- return entity != right.entity;
- }
-
- //! Check for inequality
- bool operator!=(const Standard_Transient *right) const
- {
- return entity != right;
- }
-
- //! Check for inequality
- friend bool operator!=(const Standard_Transient *left, const Handle(Standard_Transient)& right)
- {
- return left != right.entity;
- }
-
- //! Down casting operator; dummy provided for consistency with other classes
- //! (descendants)
- static const Handle(Standard_Transient)& DownCast(const Handle(Standard_Transient)& AnObject)
- {
- return AnObject;
- }
-
- //! Dump pointer to a referred object to a stream
- Standard_EXPORT void Dump(Standard_OStream& out) const;
-
-protected:
- // Protected methods for descendants
-
- //! Returns non-const pointer to referred object
- Standard_Transient* ControlAccess() const
- {
- return entity;
- }
-
- //! Assignment
- Standard_EXPORT void Assign (const Standard_Transient *anItem);
-
-private:
- // Private methods
-
- //! Increment reference counter of referred object
- Standard_EXPORT void BeginScope();
-
- //! Decrement reference counter and if 0, destroy referred object
- Standard_EXPORT void EndScope();
-
-public:
-
- DEFINE_STANDARD_ALLOC
-
-private:
- // Field
- Standard_Transient *entity;
-};
-
-//! Function in global scope to check handles for equality.
-//! Will be used with standard OCCT collections like NCollection_DataMap within NCollection_DefaultHasher
-//! when there are no specialization defined for concrete type.
-//! Notice that this implementation compares only pointers to objects!
-inline Standard_Boolean IsEqual (const Handle(Standard_Transient)& theFirst,
- const Handle(Standard_Transient)& theSecond)
-{
- return theFirst == theSecond;
-}
-
-#ifdef _WIN32
-#pragma warning (pop)
-#endif
-
-#endif
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