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/******************************************************************************
* Top contributors (to current version):
* Andrew Reynolds
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 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.
* ****************************************************************************
*
* Implementation of proof node utility.
*/
#include "expr/proof_node.h"
#include "expr/proof_node_algorithm.h"
#include "expr/proof_node_to_sexpr.h"
namespace cvc5 {
ProofNode::ProofNode(PfRule id,
const std::vector<std::shared_ptr<ProofNode>>& children,
const std::vector<Node>& args)
{
setValue(id, children, args);
}
PfRule ProofNode::getRule() const { return d_rule; }
const std::vector<std::shared_ptr<ProofNode>>& ProofNode::getChildren() const
{
return d_children;
}
const std::vector<Node>& ProofNode::getArguments() const { return d_args; }
Node ProofNode::getResult() const { return d_proven; }
bool ProofNode::isClosed()
{
std::vector<Node> assumps;
expr::getFreeAssumptions(this, assumps);
return assumps.empty();
}
void ProofNode::setValue(
PfRule id,
const std::vector<std::shared_ptr<ProofNode>>& children,
const std::vector<Node>& args)
{
d_rule = id;
d_children = children;
d_args = args;
}
void ProofNode::printDebug(std::ostream& os) const
{
// convert to sexpr and print
ProofNodeToSExpr pnts;
Node ps = pnts.convertToSExpr(this);
os << ps;
}
std::ostream& operator<<(std::ostream& out, const ProofNode& pn)
{
pn.printDebug(out);
return out;
}
} // namespace cvc5
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