mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libsolidity/formal/SSAVariable.h>
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#include <libsolidity/formal/SymbolicBoolVariable.h>
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#include <libsolidity/formal/SymbolicIntVariable.h>
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#include <libsolidity/ast/AST.h>
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using namespace std;
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using namespace dev;
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using namespace dev::solidity;
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SSAVariable::SSAVariable(
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Type const& _type,
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string const& _uniqueName,
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smt::SolverInterface& _interface
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)
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{
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resetIndex();
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if (isInteger(_type.category()))
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m_symbolicVar = make_shared<SymbolicIntVariable>(_type, _uniqueName, _interface);
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else if (isBool(_type.category()))
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m_symbolicVar = make_shared<SymbolicBoolVariable>(_type, _uniqueName, _interface);
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else
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{
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solAssert(false, "");
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}
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}
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bool SSAVariable::isSupportedType(Type::Category _category)
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{
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return isInteger(_category) || isBool(_category);
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}
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bool SSAVariable::isInteger(Type::Category _category)
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{
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return _category == Type::Category::Integer || _category == Type::Category::Address;
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}
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bool SSAVariable::isBool(Type::Category _category)
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{
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return _category == Type::Category::Bool;
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}
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void SSAVariable::resetIndex()
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{
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m_currentSequenceCounter = 0;
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m_nextFreeSequenceCounter.reset (new int);
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*m_nextFreeSequenceCounter = 1;
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}
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int SSAVariable::index() const
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{
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return m_currentSequenceCounter;
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}
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int SSAVariable::next() const
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{
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return *m_nextFreeSequenceCounter;
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}
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void SSAVariable::setZeroValue()
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{
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m_symbolicVar->setZeroValue(index());
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}
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void SSAVariable::setUnknownValue()
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{
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m_symbolicVar->setUnknownValue(index());
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}
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