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DefCallN.h
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1998-11-23
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// $Id: DefCallN.h,v 1.11 1998/11/23 17:43:22 zeller Exp $
// Calling user-defined VSL functions
// Copyright (C) 1995 Technische Universitaet Braunschweig, Germany.
// Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
//
// This file is part of DDD.
//
// DDD is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// DDD is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with DDD -- see the file COPYING.
// If not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// DDD is the data display debugger.
// For details, see the DDD World-Wide-Web page,
// `http://www.cs.tu-bs.de/softech/ddd/',
// or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
#ifndef _DDD_DefCallNode_h
#define _DDD_DefCallNode_h
#ifdef __GNUG__
#pragma interface
#endif
// A DefCallNode evaluates a user-defined VSL function
#include "assert.h"
#include <iostream.h>
#include "VSLNode.h"
#include "CallNode.h"
#include "VSLDefList.h"
#include "VSLDef.h"
// DefCallNode
class DefCallNode: public CallNode {
public:
DECLARE_TYPE_INFO
private:
VSLDef *_def; // points to definition if unambiguous, else 0
VSLDefList *_deflist; // points to possible definitions
protected:
DefCallNode(const DefCallNode& node);
const Box *call(Box *arg) const;
char *func_name() const;
bool matches(const VSLNode& node) const
{
return matchesAll ||
(CallNode::matches(node) &&
_deflist == ((DefCallNode *)&node)->_deflist); // dirty trick
}
private:
DefCallNode& operator = (const DefCallNode&)
{
assert(0); return *this;
}
public:
// Copy
VSLNode *dup() const
{
return new DefCallNode(*this);
}
// Create from def
DefCallNode(VSLDef *def, VSLNode *arg, char *type = "DefCallNode");
// Create from list of defs
DefCallNode(VSLDefList *deflist, VSLNode *arg, char *type = "DefCallNode");
// Destructor
~DefCallNode();
int countSelfReferences(VSLDef *cdef, VSLDefList *deflist);
int resolveDefs(VSLDef *cdef, bool complain_recursive);
int resolveSynonyms(VSLDef *cdef, VSLNode **node);
int inlineFuncs(VSLDef *cdef, VSLNode **node);
bool isDefCallNode() const { return true; }
// Representation invariant
bool OK() const;
};
#endif