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       1                 :            : /******************************************************************************
       2                 :            :  * Top contributors (to current version):
       3                 :            :  *   Andrew Reynolds, Aina Niemetz
       4                 :            :  *
       5                 :            :  * This file is part of the cvc5 project.
       6                 :            :  *
       7                 :            :  * Copyright (c) 2009-2024 by the authors listed in the file AUTHORS
       8                 :            :  * in the top-level source directory and their institutional affiliations.
       9                 :            :  * All rights reserved.  See the file COPYING in the top-level source
      10                 :            :  * directory for licensing information.
      11                 :            :  * ****************************************************************************
      12                 :            :  *
      13                 :            :  * Shared solver in the distributed architecture.
      14                 :            :  */
      15                 :            : 
      16                 :            : #include "cvc5_private.h"
      17                 :            : 
      18                 :            : #ifndef CVC5__THEORY__SHARED_SOLVER_DISTRIBUTED__H
      19                 :            : #define CVC5__THEORY__SHARED_SOLVER_DISTRIBUTED__H
      20                 :            : 
      21                 :            : #include "expr/node.h"
      22                 :            : #include "theory/shared_solver.h"
      23                 :            : 
      24                 :            : namespace cvc5::internal {
      25                 :            : namespace theory {
      26                 :            : 
      27                 :            : /**
      28                 :            :  * The shared solver in the distributed architecture. This class uses the
      29                 :            :  * SharedTermsDatabase for implementing the core methods of a shared solver.
      30                 :            :  */
      31                 :            : class SharedSolverDistributed : public SharedSolver
      32                 :            : {
      33                 :            :  public:
      34                 :            :   SharedSolverDistributed(Env& env, TheoryEngine& te);
      35                 :      94674 :   virtual ~SharedSolverDistributed() {}
      36                 :            :   //------------------------------------- initialization
      37                 :            :   /**
      38                 :            :    * Returns true if we need an equality engine, this has the same contract
      39                 :            :    * as Theory::needsEqualityEngine.
      40                 :            :    */
      41                 :            :   bool needsEqualityEngine(theory::EeSetupInfo& esi) override;
      42                 :            :   /** Set equality engine in the shared terms database */
      43                 :            :   void setEqualityEngine(eq::EqualityEngine* ee) override;
      44                 :            :   //------------------------------------- end initialization
      45                 :            :   /** Assert n to the shared terms database. */
      46                 :            :   void assertShared(TNode n, bool polarity, TNode reason) override;
      47                 :            :   /**
      48                 :            :    * Get equality status based on the equality engine of shared terms database
      49                 :            :    */
      50                 :            :   EqualityStatus getEqualityStatus(TNode a, TNode b) override;
      51                 :            :   /** Explain literal that was propagated by a theory or using shared terms
      52                 :            :    * database */
      53                 :            :   TrustNode explain(TNode literal, TheoryId id) override;
      54                 :            : 
      55                 :            :  protected:
      56                 :            :   /** If t is an equality, add it as one that may be propagated */
      57                 :            :   void preRegisterSharedInternal(TNode t) override;
      58                 :            : };
      59                 :            : 
      60                 :            : }  // namespace theory
      61                 :            : }  // namespace cvc5::internal
      62                 :            : 
      63                 :            : #endif /* CVC5__THEORY__SHARED_SOLVER_DISTRIBUTED__H */