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/********************* */
/*! \file inference_manager.h
** \verbatim
** Top contributors (to current version):
** Mudathir Mohamed
** 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 The inference manager for the theory of bags.
**/
#include "cvc4_private.h"
#ifndef CVC4__THEORY__BAGS__INFERENCE_MANAGER_H
#define CVC4__THEORY__BAGS__INFERENCE_MANAGER_H
#include "theory/bags/infer_info.h"
#include "theory/bags/solver_state.h"
#include "theory/inference_manager_buffered.h"
namespace CVC4 {
namespace theory {
namespace bags {
/** Inference manager
*
* This class manages inferences produced by the theory of bags. It manages
* whether inferences are processed as external lemmas on the output channel
* of theory of bags or internally as literals asserted to the equality engine
* of theory of bags. The latter literals are referred to as "facts".
*/
class InferenceManager : public InferenceManagerBuffered
{
typedef context::CDHashSet<Node, NodeHashFunction> NodeSet;
public:
InferenceManager(Theory& t, SolverState& s, ProofNodeManager* pnm);
/**
* Do pending method. This processes all pending facts, lemmas and pending
* phase requests based on the policy of this manager. This means that
* we process the pending facts first and abort if in conflict. Otherwise, we
* process the pending lemmas and then the pending phase requirements.
* Notice that we process the pending lemmas even if there were facts.
*/
// TODO issue #78: refactor this with theory of strings
void doPending();
private:
/** constants */
Node d_true;
Node d_false;
/**
* Reference to the state object for the theory of bags. We store the
* (derived) state here, since it has additional methods required in this
* class.
*/
SolverState& d_state;
};
} // namespace bags
} // namespace theory
} // namespace CVC4
#endif /* CVC4__THEORY__BAGS__INFERENCE_MANAGER_H */
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