Add new infrastructure for preprocessing passes (#1053)

This commit adds new infrastructure for preprocessing passes. It is preparation only, it does not change how the current preprocessing passes work (this will be done in future commits).

1 files changed, 49 insertions, 0 deletions

diff --git a/src/preprocessing/preprocessing_pass_context.h b/src/preprocessing/preprocessing_pass_context.h
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+/*********************                                                        */
+/*! \file preprocessing_pass_context.h
+ ** \verbatim
+ ** Top contributors (to current version):
+ **  Justin Xu
+ ** This file is part of the CVC4 project.
+ ** Copyright (c) 2009-2017 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 preprocessing pass context for passes
+ **
+ ** Implementation of the preprocessing pass context for passes. This context
+ ** allows preprocessing passes to retrieve information besides the assertions
+ ** from the solver and interact with it without getting full access.
+ **/
+
+#include "cvc4_private.h"
+
+#ifndef __CVC4__PREPROCESSING__PREPROCESSING_PASS_CONTEXT_H
+#define __CVC4__PREPROCESSING__PREPROCESSING_PASS_CONTEXT_H
+
+#include "decision/decision_engine.h"
+#include "smt/smt_engine.h"
+#include "theory/arith/pseudoboolean_proc.h"
+#include "theory/booleans/circuit_propagator.h"
+#include "theory/theory_engine.h"
+
+namespace CVC4 {
+namespace preprocessing {
+
+class PreprocessingPassContext {
+ public:
+  PreprocessingPassContext(SmtEngine* smt);
+  SmtEngine* getSmt() { return d_smt; }
+  TheoryEngine* getTheoryEngine() { return d_smt->d_theoryEngine; }
+  DecisionEngine* getDecisionEngine() { return d_smt->d_decisionEngine; }
+  prop::PropEngine* getPropEngine() { return d_smt->d_propEngine; }
+
+ private:
+  /* Pointer to the SmtEngine that this context was created in. */
+  SmtEngine* d_smt;
+};  // class PreprocessingPassContext
+
+}  // namespace preprocessing
+}  // namespace CVC4
+
+#endif /* __CVC4__PREPROCESSING__PREPROCESSING_PASS_CONTEXT_H */