src/smt/smt_engine_scope.h

   1 /*********************                                                        */
   2 /*! \file smt_engine_scope.h
   3  ** \verbatim
   4  ** Original author: Morgan Deters
   5  ** Major contributors: none
   6  ** Minor contributors (to current version): none
   7  ** This file is part of the CVC4 project.
   8  ** Copyright (c) 2009-2013  New York University and The University of Iowa
   9  ** See the file COPYING in the top-level source directory for licensing
  10  ** information.\endverbatim
  11  **
  12  ** \brief [[ Add one-line brief description here ]]
  13  **
  14  ** [[ Add lengthier description here ]]
  15  ** \todo document this file
  16  **/
  17
  18 #include "cvc4_private.h"
  19
  20 #include "smt/smt_engine.h"
  21 #include "util/tls.h"
  22 #include "util/cvc4_assert.h"
  23 #include "expr/node_manager.h"
  24 #include "util/output.h"
  25 #include "proof/proof.h"
  26
  27 #pragma once
  28
  29 namespace CVC4 {
  30
  31 class ProofManager;
  32
  33 namespace smt {
  34
  35 extern CVC4_THREADLOCAL(SmtEngine*) s_smtEngine_current;
  36
  37 inline SmtEngine* currentSmtEngine() {
  38   Assert(s_smtEngine_current != NULL);
  39   return s_smtEngine_current;
  40 }
  41
  42 inline ProofManager* currentProofManager() {
  43   Assert(PROOF_ON());
  44   Assert(s_smtEngine_current != NULL);
  45   return s_smtEngine_current->d_proofManager;
  46 }
  47
  48 class SmtScope : public NodeManagerScope {
  49   /** The old NodeManager, to be restored on destruction. */
  50   SmtEngine* d_oldSmtEngine;
  51
  52 public:
  53
  54   SmtScope(const SmtEngine* smt) :
  55     NodeManagerScope(smt->d_nodeManager),
  56     d_oldSmtEngine(s_smtEngine_current) {
  57     Assert(smt != NULL);
  58     s_smtEngine_current = const_cast<SmtEngine*>(smt);
  59     Debug("current") << "smt scope: " << s_smtEngine_current << std::endl;
  60   }
  61
  62   ~SmtScope() {
  63     s_smtEngine_current = d_oldSmtEngine;
  64     Debug("current") << "smt scope: returning to " << s_smtEngine_current << std::endl;
  65   }
  66 };/* class SmtScope */
  67
  68 }/* CVC4::smt namespace */
  69 }/* CVC4 namespace */