mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
|
/*
|
||
|
|
This file is part of solidity.
|
||
|
|
|
||
|
|
solidity is free software: you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation, either version 3 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
solidity is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with solidity. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <libsolidity/formal/SolverInterface.h>
|
||
|
|
|
||
|
|
#include <libsolidity/ast/AST.h>
|
||
|
|
|
||
|
|
#include <memory>
|
||
|
|
|
||
|
|
namespace dev
|
||
|
|
{
|
||
|
|
namespace solidity
|
||
|
|
{
|
||
|
|
|
||
|
|
class Declaration;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This class represents the symbolic version of a program variable.
|
||
|
|
*/
|
||
|
|
class SymbolicVariable
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
explicit SymbolicVariable(Declaration const* _decl,
|
||
|
|
smt::SolverInterface& _interface);
|
||
|
|
SymbolicVariable(SymbolicVariable const&) = default;
|
||
|
|
SymbolicVariable(SymbolicVariable&&) = default;
|
||
|
|
SymbolicVariable& operator=(SymbolicVariable const&) = default;
|
||
|
|
SymbolicVariable& operator=(SymbolicVariable&&) = default;
|
||
|
|
|
||
|
|
smt::Expression operator()(int _seq) const
|
||
|
|
{
|
||
|
|
return valueAtSequence(_seq);
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string uniqueSymbol() const;
|
||
|
|
|
||
|
|
virtual void setZeroValue(int _seq) = 0;
|
||
|
|
virtual void setUnknownValue(int _seq) = 0;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
smt::Expression valueAtSequence(int _seq) const
|
||
|
|
{
|
||
|
|
return (*m_expression)(_seq);
|
||
|
|
}
|
||
|
|
|
||
|
|
Declaration const* m_declaration;
|
||
|
|
std::shared_ptr<smt::Expression> m_expression = nullptr;
|
||
|
|
smt::SolverInterface& m_interface;
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|