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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds, Mathias Preiner, Tim King |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* The theory equality notify utility. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__THEORY_EQ_NOTIFY_H |
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#define CVC5__THEORY__THEORY_EQ_NOTIFY_H |
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#include "expr/node.h" |
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#include "theory/theory_inference_manager.h" |
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#include "theory/uf/equality_engine_notify.h" |
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namespace cvc5 { |
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namespace theory { |
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/** |
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* The default class for equality engine callbacks for a theory. This forwards |
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* calls for trigger predicates, trigger term equalities and conflicts due to |
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* constant merges to the provided theory inference manager. |
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*/ |
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class TheoryEqNotifyClass : public eq::EqualityEngineNotify |
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{ |
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public: |
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TheoryEqNotifyClass(TheoryInferenceManager& im) : d_im(im) {} |
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~TheoryEqNotifyClass() {} |
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bool eqNotifyTriggerPredicate(TNode predicate, bool value) override |
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{ |
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if (value) |
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{ |
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return d_im.propagateLit(predicate); |
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} |
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return d_im.propagateLit(predicate.notNode()); |
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} |
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bool eqNotifyTriggerTermEquality(TheoryId tag, |
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TNode t1, |
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TNode t2, |
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bool value) override |
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{ |
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if (value) |
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{ |
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return d_im.propagateLit(t1.eqNode(t2)); |
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} |
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return d_im.propagateLit(t1.eqNode(t2).notNode()); |
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} |
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void eqNotifyConstantTermMerge(TNode t1, TNode t2) override |
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{ |
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d_im.conflictEqConstantMerge(t1, t2); |
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} |
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void eqNotifyNewClass(TNode t) override |
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{ |
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// do nothing |
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} |
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void eqNotifyMerge(TNode t1, TNode t2) override |
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{ |
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// do nothing |
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} |
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void eqNotifyDisequal(TNode t1, TNode t2, TNode reason) override |
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{ |
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// do nothing |
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} |
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protected: |
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/** Reference to the theory inference manager */ |
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TheoryInferenceManager& d_im; |
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}; |
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} // namespace theory |
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} // namespace cvc5 |
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#endif |