/*********************                                                        */
/*! \file term_registry.cpp
 ** \verbatim
 ** Top contributors (to current version):
 **   Mudathir Mohamed, Morgan Deters, Dejan Jovanovic
 ** 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 bags term registry object
 **/

#include "theory/bags/term_registry.h"

using namespace std;
using namespace CVC4::kind;

namespace CVC4 {
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 CVC4