Merge pull request #5235 from ethereum/smt_refactor_types

[SMTChecker] Refactoring types

1 files changed, 41 insertions, 0 deletions

diff --git a/libsolidity/formal/SymbolicAddressVariable.cpp b/libsolidity/formal/SymbolicAddressVariable.cpp
new file mode 100644
index 00000000..68b95080
--- /dev/null
+++ b/libsolidity/formal/SymbolicAddressVariable.cpp
@@ -0,0 +1,41 @@
+/*
+	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/SymbolicAddressVariable.h>
+
+#include <libsolidity/formal/SymbolicTypes.h>
+
+using namespace std;
+using namespace dev;
+using namespace dev::solidity;
+
+SymbolicAddressVariable::SymbolicAddressVariable(
+	Type const& _type,
+	string const& _uniqueName,
+	smt::SolverInterface& _interface
+):
+	SymbolicIntVariable(_type, _uniqueName, _interface)
+{
+	solAssert(isAddress(_type.category()), "");
+}
+
+void SymbolicAddressVariable::setUnknownValue()
+{
+	IntegerType intType{160};
+	m_interface.addAssertion(currentValue() >= minValue(intType));
+	m_interface.addAssertion(currentValue() <= maxValue(intType));
+}