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// This file is part of the AspectC++ compiler 'ac++'.
// Copyright (C) 1999-2003 The 'ac++' developers (see aspectc.org)
//
// This program 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.
//
// This program 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 this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307 USA
#ifndef __PointCutContext_h__
#define __PointCutContext_h__
#include <set>
using namespace std;
#include "Puma/Array.h"
#include "Puma/Stack.h"
#include "Binding.h"
#include "JoinPointModel.h"
using namespace Puma;
namespace Puma {
class CFunctionInfo;
class CArgumentInfo;
class CObjectInfo;
class ACAspectInfo;
class CTranslationUnit;
class ErrorStream;
class CTree;
}
class PointCutExpr;
typedef Array<const CArgumentInfo*> ArgSet;
class PointCutContext {
JoinPointModel &_jpm;
CFunctionInfo *_func;
JPL_Aspect *_aspect;
int _per_aspect_cflows;
// new pointcut evaluation data members
Stack<ArgSet*> _arg_bindings;
int _in_arg;
bool _in_result;
bool _in_that;
bool _in_target;
bool _pseudo_true;
set<PointCutExpr*> _cflow_exprs;
CFunctionInfo *lookup_pointcut(ACAspectInfo *ai, CFunctionInfo *fi);
public:
PointCutContext (JoinPointModel &jpm) :
_jpm (jpm), _func (0), _aspect (0), _per_aspect_cflows (0),
_in_arg (-1), _in_result (false), _in_that (false), _in_target (false),
_pseudo_true (false) {
}
JoinPointModel &jpm () { return _jpm; }
CFunctionInfo *func (CFunctionInfo *new_func) {
CFunctionInfo *result = _func;
_func = new_func;
return result;
}
CFunctionInfo *func () const { return _func; }
void concrete_aspect (JPL_Aspect &ai) { _aspect = &ai; _per_aspect_cflows = 0; }
// ACAspectInfo *aspect_info () const { return _aspect; }
CFunctionInfo *lookup_pointcut (CFunctionInfo *func, ErrorStream &err,
CTree *node);
bool in_project (CObjectInfo *obj);
// used for semantic analysis of pointcut expressions
Stack<ArgSet*> &arg_bindings () { return _arg_bindings; }
// used for context binding in args()
bool in_arg () const { return _in_arg >= 0; }
void set_arg (int a) { _in_arg = a; }
int get_arg () const { return _in_arg; }
// used for context binding in result()
bool in_result () const { return _in_result; }
void enter_result () { _in_result = true; }
void leave_result () { _in_result = false; }
// used for context binding in that()
bool in_that () const { return _in_that; }
void enter_that () { _in_that = true; }
void leave_that () { _in_that = false; }
// used for context binding in target()
bool in_target () const { return _in_target; }
void enter_target () { _in_target = true; }
void leave_target () { _in_target = false; }
// that or within was evaluated as true, because we have a pseudo call
void pseudo_true (bool val) { _pseudo_true = val; }
bool is_pseudo_true () const { return _pseudo_true; }
// cflow trigger management
int cflow (PointCutExpr *pce) {
_cflow_exprs.insert (pce);
return _per_aspect_cflows++;
}
const set<PointCutExpr*> &cflows () { return _cflow_exprs; }
void cflow_reset () { _cflow_exprs.clear (); }
};
#endif // __PointCutContext_h__
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