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/********************* */
/*! \file theory_eq_notify.h
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds, Mathias Preiner, Tim King
** 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 theory equality notify utility.
**/
#include "cvc4_private.h"
#ifndef CVC4__THEORY__THEORY_EQ_NOTIFY_H
#define CVC4__THEORY__THEORY_EQ_NOTIFY_H
#include "expr/node.h"
#include "theory/theory_inference_manager.h"
#include "theory/uf/equality_engine_notify.h"
namespace cvc5 {
namespace theory {
/**
* The default class for equality engine callbacks for a theory. This forwards
* calls for trigger predicates, trigger term equalities and conflicts due to
* constant merges to the provided theory inference manager.
*/
class TheoryEqNotifyClass : public eq::EqualityEngineNotify
{
public:
TheoryEqNotifyClass(TheoryInferenceManager& im) : d_im(im) {}
~TheoryEqNotifyClass() {}
bool eqNotifyTriggerPredicate(TNode predicate, bool value) override
{
if (value)
{
return d_im.propagateLit(predicate);
}
return d_im.propagateLit(predicate.notNode());
}
bool eqNotifyTriggerTermEquality(TheoryId tag,
TNode t1,
TNode t2,
bool value) override
{
if (value)
{
return d_im.propagateLit(t1.eqNode(t2));
}
return d_im.propagateLit(t1.eqNode(t2).notNode());
}
void eqNotifyConstantTermMerge(TNode t1, TNode t2) override
{
d_im.conflictEqConstantMerge(t1, t2);
}
void eqNotifyNewClass(TNode t) override
{
// do nothing
}
void eqNotifyMerge(TNode t1, TNode t2) override
{
// do nothing
}
void eqNotifyDisequal(TNode t1, TNode t2, TNode reason) override
{
// do nothing
}
protected:
/** Reference to the theory inference manager */
TheoryInferenceManager& d_im;
};
} // namespace theory
} // namespace cvc5
#endif
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