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/******************************************************************************
* Top contributors (to current version):
* Mudathir Mohamed, Aina Niemetz
*
* This file is part of the cvc5 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.
* ****************************************************************************
*
* Implementation of bags term registry object.
*/
#include "theory/bags/term_registry.h"
#include "expr/emptyset.h"
#include "theory/bags/inference_manager.h"
#include "theory/bags/solver_state.h"
using namespace std;
using namespace cvc5::kind;
namespace cvc5 {
namespace theory {
namespace bags {
TermRegistry::TermRegistry(SolverState& state, InferenceManager& im)
: d_im(im),
d_proxy(state.getUserContext()),
d_proxy_to_term(state.getUserContext())
{
}
Node TermRegistry::getEmptyBag(TypeNode tn)
{
std::map<TypeNode, Node>::iterator it = d_emptybag.find(tn);
if (it != d_emptybag.end())
{
return it->second;
}
Node n = NodeManager::currentNM()->mkConst(EmptySet(tn));
d_emptybag[tn] = n;
return n;
}
} // namespace bags
} // namespace theory
} // namespace cvc5
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