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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 __IntroductionUnit_h__
#define __IntroductionUnit_h__
#include <string.h>
#include "ACUnit.h"
#ifdef ACMODEL
class ACM_Introduction;
#else
class JPL_Introduction;
#endif
class IntroductionUnit : public ACUnit {
Unit *_target_unit;
int _nesting_level;
#ifdef ACMODEL
ACM_Introduction *_intro;
#else
JPL_Introduction *_intro;
#endif
void update_nesting_level () {
IntroductionUnit *outer = cast (_target_unit);
if (outer)
_nesting_level = outer->_nesting_level + 1;
}
public:
IntroductionUnit (ErrorSink &e, Unit *t = 0) : ACUnit (e), _target_unit (t),
_nesting_level (0) {
name ("intro");
update_nesting_level ();
}
void target_unit (Unit *t) { _target_unit = t; update_nesting_level (); }
Unit *target_unit () const { return _target_unit; }
Unit *final_target_unit () const {
Unit *result = _target_unit;
const IntroductionUnit *intro_unit = 0;
do {
intro_unit = IntroductionUnit::cast (result);
if (intro_unit)
result = intro_unit->target_unit ();
} while (intro_unit);
return result;
}
int nesting_level () const { return _nesting_level; }
#ifdef ACMODEL
void intro (ACM_Introduction *i) { _intro = i; }
ACM_Introduction *intro () const { return _intro; }
#else
void intro (JPL_Introduction *i) { _intro = i; }
JPL_Introduction *intro () const { return _intro; }
#endif
static IntroductionUnit *cast (const Unit* u) {
return (u->name () && strcmp (u->name (), "intro") == 0) ? (IntroductionUnit*)u : 0;
}
};
#endif // __IntroductionUnit_h__
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