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[SMTChecker] Support inheritance and resolve overrides

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This commit is contained in:
Leonardo Alt
2019-11-06 11:00:06 +01:00
parent eb0d72e825
commit 10e70b8603
10 changed files with 155 additions and 19 deletions
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libsolidity/formal/SMTEncoder.cpp
+37 -4
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@@ -36,12 +36,37 @@ SMTEncoder::SMTEncoder(smt::EncodingContext& _context):
bool SMTEncoder::visit(ContractDefinition const& _contract)
{
solAssert(m_currentContract == nullptr, "");
m_currentContract = &_contract;
solAssert(m_currentContract, "");
initializeStateVariables(_contract);
for (auto const& node: _contract.subNodes())
if (!dynamic_pointer_cast<FunctionDefinition>(node))
node->accept(*this);
return true;
vector<FunctionDefinition const*> resolvedFunctions = _contract.definedFunctions();
for (auto const& base: _contract.annotation().linearizedBaseContracts)
for (auto const& baseFunction: base->definedFunctions())
{
if (baseFunction->isConstructor())
continue;
bool overridden = false;
for (auto const& function: resolvedFunctions)
if (
function->name() == baseFunction->name() &&
FunctionType(*function).asCallableFunction(false)->
hasEqualParameterTypes(*FunctionType(*baseFunction).asCallableFunction(false))
)
{
overridden = true;
break;
}
if (!overridden)
resolvedFunctions.push_back(baseFunction);
}
for (auto const& function: resolvedFunctions)
function->accept(*this);
return false;
}
void SMTEncoder::endVisit(ContractDefinition const& _contract)
@@ -512,6 +537,14 @@ void SMTEncoder::endVisit(FunctionCall const& _funCall)
}
}
void SMTEncoder::initContract(ContractDefinition const& _contract)
{
solAssert(m_currentContract == nullptr, "");
m_currentContract = &_contract;
initializeStateVariables(_contract);
}
void SMTEncoder::initFunction(FunctionDefinition const& _function)
{
solAssert(m_callStack.empty(), "");