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/********************* */
/*! \file sygus_enumerator_basic.cpp
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds
** This file is part of the CVC4 project.
** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
** in the top-level source directory and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Implementation of sygus basic enumerator
**/
#include "theory/quantifiers/sygus/sygus_enumerator_basic.h"
#include "options/datatypes_options.h"
using namespace cvc5::kind;
using namespace std;
namespace cvc5 {
namespace theory {
namespace quantifiers {
EnumValGeneratorBasic::EnumValGeneratorBasic(TermDbSygus* tds, TypeNode tn)
: d_tds(tds), d_te(tn)
{
}
bool EnumValGeneratorBasic::increment()
{
++d_te;
if (d_te.isFinished())
{
d_currTerm = Node::null();
return false;
}
d_currTerm = *d_te;
if (options::sygusSymBreakDynamic())
{
Node nextb = d_tds->sygusToBuiltin(d_currTerm);
nextb = d_tds->getExtRewriter()->extendedRewrite(nextb);
if (d_cache.find(nextb) == d_cache.end())
{
d_cache.insert(nextb);
// only return the current term if not unique
}
else
{
d_currTerm = Node::null();
}
}
return true;
}
} // namespace quantifiers
} // namespace theory
} // namespace cvc5
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