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// Dynamic place contents -*- c++ -*-
#ifdef __GNUC__
# pragma implementation
#endif // __GNUC__
#include "PlaceContents.h"
#include <assert.h>
#include "Place.h"
#include "GlobalMarking.h"
#include "Valuation.h"
#include "Printer.h"
/** @file PlaceContents.C
* Operation for reading the marking of a place
*/
/* Copyright 1999-2002 Marko Mkel (msmakela@tcs.hut.fi).
This file is part of MARIA, a reachability analyzer and model checker
for high-level Petri nets.
MARIA 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.
MARIA 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.
The GNU General Public License is often shipped with GNU software, and
is generally kept in a file called COPYING or LICENSE. If you do not
have a copy of the license, write to the Free Software Foundation,
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
PlaceContents::PlaceContents (const class Place& place) :
myPlace (place)
{
setType (place.getType ());
}
PlaceContents::~PlaceContents ()
{
}
class PlaceMarking*
PlaceContents::meval (const class Valuation& valuation) const
{
if (const class GlobalMarking* m = valuation.getGlobalMarking ())
return new class PlaceMarking ((*m)[myPlace]);
else {
valuation.flag (errVar, *this);
return NULL;
}
}
bool
PlaceContents::depends (const class VariableSet&,
bool) const
{
return false;
}
bool
PlaceContents::forExpressions (bool (*operation)
(const class Expression&,void*),
void* data) const
{
return
(*operation) (*this, data);
}
#ifdef EXPR_COMPILE
# include "CExpression.h"
void
PlaceContents::compileScalarMset (class CExpression& cexpr,
unsigned indent,
const char* result,
const class VariableSet*,
bool check) const
{
class StringBuffer& out = cexpr.getOut ();
if (check) {
out.indent (indent);
out.append ("if (");
out.append (result);
if (myPlace.getMaxNumTokens () == 1) {
out.append (" && ");
out.append (cexpr.getMultiset ());
out.append (".p");
out.append (myPlace.getIndex ());
}
else {
out.append (" && singleton (");
out.append (cexpr.getMultiset ());
out.append (".p");
out.append (myPlace.getIndex ());
out.append (")");
}
out.append (")\n");
cexpr.compileError (indent + 2, errConst);
}
if (myPlace.getMaxNumTokens () == 1) {
out.indent (indent);
out.append (result);
out.append (" = ");
out.append (cexpr.getMultiset ());
out.append (".p");
out.append (myPlace.getIndex ());
out.append (";\n");
}
else {
out.indent (indent);
out.append (result);
out.append (" = singleton (");
out.append (cexpr.getMultiset ());
out.append (".p");
out.append (myPlace.getIndex ());
out.append (");\n");
}
}
void
PlaceContents::compileMset (class CExpression& cexpr,
unsigned indent,
const char* resulttype,
const char* result,
const class VariableSet*) const
{
class StringBuffer& out = cexpr.getOut ();
if (myPlace.getMaxNumTokens () == 1) {
out.indent (indent);
if (myPlace.getCapacityBits ()) {
out.append ("if (");
out.append (cexpr.getMultiset ());
out.append (".p");
out.append (myPlace.getIndex ());
out.append (")\n");
out.indent (indent + 2);
}
out.append (result);
out.append ("=insert");
getType ()->appendIndex (out);
out.append (" (");
if (resulttype)
out.append (resulttype);
out.append (result);
out.append (", ");
out.append (cexpr.getMultiset ());
out.append (".p");
out.append (myPlace.getIndex ());
out.append (", 1);\n");
}
else {
out.indent (indent);
out.append (result);
out.append ("=copy");
getType ()->appendIndex (out);
out.append (" (");
if (resulttype)
out.append (resulttype);
out.append (result);
out.append (", ");
out.append (cexpr.getMultiset ());
out.append (".p");
out.append (myPlace.getIndex ());
out.append (");\n");
}
}
char*
PlaceContents::getName (const class CExpression& cexpr) const
{
const char* mset = cexpr.getMultiset ();
assert (!!mset);
class StringBuffer buf;
buf.append (mset);
buf.append (".p");
buf.append (myPlace.getIndex ());
char* name = new char[buf.getLength () + 1];
memcpy (name, buf.getString (), buf.getLength () + 1);
return name;
}
#endif // EXPR_COMPILE
void
PlaceContents::display (const class Printer& printer) const
{
printer.printRaw ("place");
printer.delimiter (' ');
printer.print (myPlace.getName ());
}
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