209a2ede2c
#ifdef HAVE_CONFIG_H #include <config.h> #endif added to these files. Kent -- mein@cs.umn.edu
77 lines
1.5 KiB
C++
77 lines
1.5 KiB
C++
// Expression.cpp: implementation of the CExpression class.
|
|
/*
|
|
* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
|
|
*
|
|
* Permission to use, copy, modify, distribute and sell this software
|
|
* and its documentation for any purpose is hereby granted without fee,
|
|
* provided that the above copyright notice appear in all copies and
|
|
* that both that copyright notice and this permission notice appear
|
|
* in supporting documentation. Erwin Coumans makes no
|
|
* representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
*/
|
|
|
|
#include "Expression.h"
|
|
#include "ErrorValue.h"
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Construction/Destruction
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
CExpression::CExpression()// : m_cached_calculate(NULL)
|
|
{
|
|
m_refcount = 1;
|
|
#ifdef _DEBUG
|
|
//gRefCountExpr++;
|
|
#endif
|
|
}
|
|
|
|
CExpression::~CExpression()
|
|
{
|
|
assert (m_refcount == 0);
|
|
}
|
|
|
|
|
|
|
|
// destuctor for CBrokenLinkInfo
|
|
CBrokenLinkInfo::~CBrokenLinkInfo()
|
|
{
|
|
if (m_pExpr && !m_bRestored)
|
|
m_pExpr->Release();
|
|
}
|
|
|
|
|
|
void CBrokenLinkInfo::RestoreLink()
|
|
{
|
|
|
|
|
|
assertd(m_pExpr);
|
|
|
|
if (m_pExpr)
|
|
{
|
|
if (!m_bRestored){
|
|
m_bRestored=true;
|
|
|
|
}
|
|
if (*m_pmemExpr)
|
|
{
|
|
(*m_pmemExpr)->Release();
|
|
}
|
|
*m_pmemExpr = m_pExpr;
|
|
|
|
// m_pExpr=NULL;
|
|
}
|
|
}
|
|
|
|
void CBrokenLinkInfo::BreakLink()
|
|
{
|
|
m_bRestored=false;
|
|
m_pExpr->AddRef();
|
|
}
|
|
|