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/********************* */
/*! \file static_learning.cpp
** \verbatim
** Top contributors (to current version):
** Yoni Zohar, Andrew Reynolds
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 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 static learning preprocessing pass
**
**/
#include "preprocessing/passes/static_learning.h"
#include <string>
#include "expr/node.h"
namespace CVC4 {
namespace preprocessing {
namespace passes {
StaticLearning::StaticLearning(PreprocessingPassContext* preprocContext)
: PreprocessingPass(preprocContext, "static-learning"){};
PreprocessingPassResult StaticLearning::applyInternal(
AssertionPipeline* assertionsToPreprocess)
{
d_preprocContext->spendResource(ResourceManager::Resource::PreprocessStep);
for (unsigned i = 0; i < assertionsToPreprocess->size(); ++i)
{
NodeBuilder<> learned(kind::AND);
learned << (*assertionsToPreprocess)[i];
d_preprocContext->getTheoryEngine()->ppStaticLearn(
(*assertionsToPreprocess)[i], learned);
if (learned.getNumChildren() == 1)
{
learned.clear();
}
else
{
assertionsToPreprocess->replace(i, learned);
}
}
return PreprocessingPassResult::NO_CONFLICT;
}
} // namespace passes
} // namespace preprocessing
} // namespace CVC4
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