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/********************* */
/*! \file expr_names.h
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds, Aina Niemetz, Kshitij Bansal
** 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 Utility for maintaining expression names.
**/
#include "cvc4_private.h"
#ifndef CVC4__SMT__EXPR_NAMES_H
#define CVC4__SMT__EXPR_NAMES_H
#include <string>
#include "context/cdhashmap.h"
#include "expr/node.h"
namespace CVC4 {
namespace smt {
/**
* This utility is responsible for maintaining names for expressions.
*/
class ExprNames
{
public:
ExprNames(context::UserContext* u);
/**
* Get expression name.
*
* Return true if given expression has a name in the current context.
* If it returns true, the name of expression 'e' is stored in 'name'.
*/
bool getExpressionName(const Node& e, std::string& name) const;
/**
* Set name of given expression 'e' to 'name'.
*
* This information is user-context-dependent.
* If 'e' already has a name, it is overwritten.
*/
void setExpressionName(const Node& e, const std::string& name);
private:
/** mapping from expressions to name */
context::CDHashMap< Node, std::string, NodeHashFunction > d_exprNames;
};
} // namespace smt
} // namespace CVC4
#endif
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