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-rw-r--r--libsolidity/formal/SSAVariable.cpp66
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diff --git a/libsolidity/formal/SSAVariable.cpp b/libsolidity/formal/SSAVariable.cpp
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+/*
+ 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_symbVar = make_shared<SymbolicIntVariable>(_decl, _interface);
+ else
+ {
+ //solAssert(false, "");
+ }
+}
+
+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_symbVar->setZeroValue(index());
+}
+
+void SSAVariable::setUnknownValue()
+{
+ m_symbVar->setUnknownValue(index());
+}