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https://git.dev.opencascade.org/repos/occt.git
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f5f4ebd07b
Restored possibility to have out-of-line implementation of DynamicCast() and STANDART_TYPE(): - Macro STANDARD_TYPE() now resolves to function get_type_descriptor() of the class - Macro DEFINE_STANDARD_RTTI is replaced by two variants: - DEFINE_STANDARD_RTTI_INLINE works as before, defining DynamicCast() and get_type_descriptor() as inline functions - DEFINE_STANDARD_RTTIEXT declares DynamicCast() and get_type_descriptor() as exported - Macro IMPLEMENT_STANDARD_RTTIEXT provides definition of DynamicCast() and get_type_descriptor() for a class Upgrade script amended to replace DEFINE_STANDARD_RTTI by pair of DEFINE_STANDARD_RTTIEXT / IMPLEMENT_STANDARD_RTTIEXT if source file with the same name as header is found in the same folder, and by DEFINE_STANDARD_RTTI_INLINE if either source is not found or class is defined in the source (i.e. not in header) Upgrade tool improved to recognize include statements with path prefix, like #include <occt/gp_Pnt.hxx> Code corrected to eliminate warnings reported by upgrade tool. Template of CXX file for testing upgrade tool added. Documentation of upgrade procedure updated.
118 lines
4.1 KiB
C++
118 lines
4.1 KiB
C++
// Copyright (c) 1998-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Standard_Transient_HeaderFile
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#define _Standard_Transient_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_PrimitiveTypes.hxx>
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class Standard_Type;
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namespace opencascade {
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template <class T> class handle;
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}
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//! Abstract class which forms the root of the entire
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//! Transient class hierarchy.
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class Standard_Transient
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{
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public:
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// Standard OCCT memory allocation stuff
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DEFINE_STANDARD_ALLOC
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public:
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//! Empty constructor
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Standard_Transient() : count(0) {}
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//! Copy constructor -- does nothing
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Standard_Transient (const Standard_Transient&) : count(0) {}
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//! Assignment operator, needed to avoid copying reference counter
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Standard_Transient& operator= (const Standard_Transient&) { return *this; }
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//! Destructor must be virtual
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virtual ~Standard_Transient() {}
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//! Memory deallocator for transient classes
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Standard_EXPORT virtual void Delete() const;
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public:
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//!@name Support of run-time type information (RTTI)
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typedef void base_type;
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static const char* get_type_name () { return "Standard_Transient"; }
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//! Returns type descriptor of Standard_Transient class
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Standard_EXPORT static const opencascade::handle<Standard_Type>& get_type_descriptor ();
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//! Returns a type descriptor about this object.
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Standard_EXPORT virtual const opencascade::handle<Standard_Type>& DynamicType() const;
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//! Returns a true value if this is an instance of Type.
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Standard_EXPORT Standard_Boolean IsInstance(const opencascade::handle<Standard_Type>& theType) const;
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//! Returns a true value if this is an instance of TypeName.
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Standard_EXPORT Standard_Boolean IsInstance(const Standard_CString theTypeName) const;
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//! Returns true if this is an instance of Type or an
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//! instance of any class that inherits from Type.
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//! Note that multiple inheritance is not supported by OCCT RTTI mechanism.
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Standard_EXPORT Standard_Boolean IsKind(const opencascade::handle<Standard_Type>& theType) const;
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//! Returns true if this is an instance of TypeName or an
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//! instance of any class that inherits from TypeName.
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//! Note that multiple inheritance is not supported by OCCT RTTI mechanism.
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Standard_EXPORT Standard_Boolean IsKind(const Standard_CString theTypeName) const;
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//! Returns non-const pointer to this object (like const_cast).
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//! For protection against creating handle to objects allocated in stack
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//! or call from constructor, it will raise exception Standard_ProgramError
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//! if reference counter is zero.
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Standard_EXPORT Standard_Transient* This() const;
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public:
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//!@name Reference counting, for use by handle<>
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//! Get the reference counter of this object
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Standard_EXPORT Standard_Integer GetRefCount() const { return count; }
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//! Increments the reference counter of this object
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Standard_EXPORT void IncrementRefCounter() const;
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//! Decrements the reference counter of this object;
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//! returns the decremented value
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Standard_EXPORT Standard_Integer DecrementRefCounter() const;
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private:
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//! Reference counter
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mutable volatile Standard_Integer count;
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};
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//! Global method HashCode(), for use in hash maps
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inline Standard_Integer HashCode (const Standard_Transient* theObject, const Standard_Integer theUpper)
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{
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return ::HashCode ((Standard_Address*)theObject, theUpper);
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}
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//! Definition of Handle_Standard_Transient as typedef for compatibility
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typedef opencascade::handle<Standard_Transient> Handle_Standard_Transient;
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#endif
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