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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds |
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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 TheoryRewriter class. |
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* |
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* The interface that theory rewriters implement. |
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*/ |
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#include "theory/theory_rewriter.h" |
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namespace cvc5 { |
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namespace theory { |
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TrustRewriteResponse::TrustRewriteResponse(RewriteStatus status, |
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Node n, |
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Node nr, |
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ProofGenerator* pg) |
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: d_status(status) |
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{ |
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// we always make non-null, regardless of whether n = nr |
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d_node = TrustNode::mkTrustRewrite(n, nr, pg); |
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} |
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TrustRewriteResponse TheoryRewriter::postRewriteWithProof(TNode node) |
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{ |
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RewriteResponse response = postRewrite(node); |
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// by default, we return a trust rewrite response with no proof generator |
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return TrustRewriteResponse( |
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response.d_status, node, response.d_node, nullptr); |
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} |
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TrustRewriteResponse TheoryRewriter::preRewriteWithProof(TNode node) |
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{ |
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RewriteResponse response = preRewrite(node); |
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// by default, we return a trust rewrite response with no proof generator |
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return TrustRewriteResponse( |
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response.d_status, node, response.d_node, nullptr); |
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} |
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Node TheoryRewriter::rewriteEqualityExt(Node node) { return node; } |
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TrustNode TheoryRewriter::rewriteEqualityExtWithProof(Node node) |
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{ |
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Node nodeRew = rewriteEqualityExt(node); |
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if (nodeRew != node) |
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{ |
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// by default, we return a trust rewrite response with no proof generator |
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return TrustNode::mkTrustRewrite(node, nodeRew, nullptr); |
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} |
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// no rewrite |
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return TrustNode::null(); |
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} |
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TrustNode TheoryRewriter::expandDefinition(Node node) |
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{ |
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// no expansion |
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return TrustNode::null(); |
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} |
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} // namespace theory |
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} // namespace cvc5 |