mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
74 lines
1.6 KiB
C++
74 lines
1.6 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/>.
|
|
*/
|
|
|
|
#include <libsolidity/formal/SSAVariable.h>
|
|
|
|
#include <libsolidity/formal/SymbolicIntVariable.h>
|
|
|
|
#include <libsolidity/ast/AST.h>
|
|
|
|
using namespace std;
|
|
using namespace dev;
|
|
using namespace dev::solidity;
|
|
|
|
SSAVariable::SSAVariable(
|
|
Declaration const* _decl,
|
|
smt::SolverInterface& _interface
|
|
)
|
|
{
|
|
resetIndex();
|
|
|
|
if (dynamic_cast<IntegerType const*>(_decl->type().get()))
|
|
m_symbolicVar = make_shared<SymbolicIntVariable>(_decl, _interface);
|
|
else
|
|
{
|
|
solAssert(false, "");
|
|
}
|
|
}
|
|
|
|
bool SSAVariable::supportedType(Type const* _decl)
|
|
{
|
|
return dynamic_cast<IntegerType const*>(_decl);
|
|
}
|
|
|
|
void SSAVariable::resetIndex()
|
|
{
|
|
m_currentSequenceCounter = 0;
|
|
m_nextFreeSequenceCounter.reset (new int);
|
|
*m_nextFreeSequenceCounter = 1;
|
|
}
|
|
|
|
int SSAVariable::index() const
|
|
{
|
|
return m_currentSequenceCounter;
|
|
}
|
|
|
|
int SSAVariable::next() const
|
|
{
|
|
return *m_nextFreeSequenceCounter;
|
|
}
|
|
|
|
void SSAVariable::setZeroValue()
|
|
{
|
|
m_symbolicVar->setZeroValue(index());
|
|
}
|
|
|
|
void SSAVariable::setUnknownValue()
|
|
{
|
|
m_symbolicVar->setUnknownValue(index());
|
|
}
|