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/*-------------------------------------------------------------------------
Compiler Generator Coco/R,
Copyright (c) 1990, 2004 Hanspeter Moessenboeck, University of Linz
extended by M. Loeberbauer & A. Woess, Univ. of Linz
ported to C++ by Csaba Balazs, University of Szeged
with improvements by Pat Terry, Rhodes University
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, 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.
As an exception, it is allowed to write an extension of Coco/R that is
used as a plugin in non-free software.
If not otherwise stated, any source code generated by Coco/R (other than
Coco/R itself) does not fall under the GNU General Public License.
-------------------------------------------------------------------------*/
#include "Action.h"
#include "State.h"
namespace Coco {
State::State() {
this->firstAction = NULL;
this->endOf = NULL;
this->ctx = false;
this->next = NULL;
}
void State::AddAction(Action *act) {
Action *lasta = NULL, *a = firstAction;
while (a != NULL && act->typ >= a->typ) {lasta = a; a = a->next;}
// collecting classes at the beginning gives better performance
act->next = a;
if (a==firstAction) {
firstAction = act;
}
else {
lasta->next = act;
}
}
void State::DetachAction(Action *act) {
Action *lasta = NULL, *a = firstAction;
while (a != NULL && a != act) {lasta = a; a = a->next;}
if (a != NULL) {
if (a == firstAction) {
firstAction = a->next;
}
else {
lasta->next = a->next;
}
}
}
void State::MeltWith(State *s) { // copy actions of s to state
Action *a;
for (Action *action = s->firstAction; action != NULL; action = action->next) {
a = new Action(action->typ, action->sym, action->tc);
a->AddTargets(action);
AddAction(a);
}
}
}; // namespace
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