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/******************************************************************************
* Top contributors (to current version):
* Mudathir Mohamed
*
* 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.
* ****************************************************************************
*
* A class for empty bags.
*/
#include "expr/emptybag.h"
#include <iostream>
#include "expr/type_node.h"
namespace cvc5 {
std::ostream& operator<<(std::ostream& out, const EmptyBag& asa)
{
return out << "emptybag(" << asa.getType() << ')';
}
size_t EmptyBagHashFunction::operator()(const EmptyBag& es) const
{
return std::hash<TypeNode>()(es.getType());
}
/**
* Constructs an emptybag of the specified type. Note that the argument
* is the type of the bag itself, NOT the type of the elements.
*/
EmptyBag::EmptyBag(const TypeNode& bagType) : d_type(new TypeNode(bagType)) {}
EmptyBag::EmptyBag(const EmptyBag& es) : d_type(new TypeNode(es.getType())) {}
EmptyBag& EmptyBag::operator=(const EmptyBag& es)
{
(*d_type) = es.getType();
return *this;
}
EmptyBag::~EmptyBag() {}
const TypeNode& EmptyBag::getType() const { return *d_type; }
bool EmptyBag::operator==(const EmptyBag& es) const
{
return getType() == es.getType();
}
bool EmptyBag::operator!=(const EmptyBag& es) const { return !(*this == es); }
bool EmptyBag::operator<(const EmptyBag& es) const
{
return getType() < es.getType();
}
bool EmptyBag::operator<=(const EmptyBag& es) const
{
return getType() <= es.getType();
}
bool EmptyBag::operator>(const EmptyBag& es) const { return !(*this <= es); }
bool EmptyBag::operator>=(const EmptyBag& es) const { return !(*this < es); }
} // namespace cvc5
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