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97 lines
1.7 KiB
97 lines
1.7 KiB
//-----------------------------------------------------------------------------
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//
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// File: SmartRef.h
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// Copyright (C) 1994-1997 Microsoft Corporation
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// All rights reserved.
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//
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//
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//
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//-----------------------------------------------------------------------------
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#ifndef ESPUTIL_SmartRef_H
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#define ESPUTIL_SmartRef_H
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template<class T>
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class SmartRef
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{
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private:
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T *m_pInterface;
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public:
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NOTHROW SmartRef()
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{
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m_pInterface = NULL;
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}
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// Compiler bug, must be inline!
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NOTHROW SmartRef(T *pI) {m_pInterface = pI;};
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NOTHROW SmartRef(const SmartRef<T> &);
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NOTHROW T * operator->(void)
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{
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LTASSERT(m_pInterface != NULL);
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return m_pInterface;
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}
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NOTHROW const T * operator->(void) const
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{
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LTASSERT(m_pInterface != NULL);
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return m_pInterface;
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}
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NOTHROW T & operator*(void)
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{
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LTASSERT(m_pInterface != NULL);
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return *m_pInterface;
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}
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NOTHROW T * Extract(void)
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{
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return ExtractImpl();
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};
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NOTHROW T * GetInterface(BOOL fAddRef = FALSE)
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{
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return GetInterfaceImpl(fAddRef);
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};
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NOTHROW const T * GetInterface(void) const
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{
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return m_pInterface;
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}
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NOTHROW BOOL IsNull(void) const
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{
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return m_pInterface == NULL;
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}
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NOTHROW ~SmartRef()
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{
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if (m_pInterface != NULL)
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{
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m_pInterface->Release();
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}
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}
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void operator=(T* pOther)
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{
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opEqImpl(pOther);
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}
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void operator=(const SmartRef<T> &other);
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T ** operator&(void);
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operator T* &(void) {return opTpRef();};
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private:
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void operator delete(void *);
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NOTHROW T * ExtractImpl(void);
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NOTHROW T * GetInterfaceImpl(BOOL fAddRef);
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NOTHROW T * & opTpRef(void);
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void opEqImpl(T* pOther);
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};
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#include "SmartRef.inl"
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#endif
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