cerc-io/solidity
16
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Refactor constructor exit

Browse Source
This commit is contained in:
Leonardo Alt 2020-07-13 21:10:30 +02:00
parent 80d704891c
commit a7a069c74a
2 changed files with 42 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
libsolidity/formal/CHC.cpp
View File

@ -142,12 +142,11 @@ void CHC::endVisit(ContractDefinition const& _contract)
else
inlineConstructorHierarchy(_contract);
auto summary = predicate(*m_constructorSummaryPredicate, vector<smtutil::Expression>{m_error.currentValue()} + currentStateVariables());
connectBlocks(m_currentBlock, summary);
connectBlocks(m_currentBlock, summary(_contract), m_error.currentValue() == 0);
clearIndices(m_currentContract, nullptr);
auto stateExprs = vector<smtutil::Expression>{m_error.currentValue()} + currentStateVariables();
setCurrentBlock(*m_constructorSummaryPredicate, &stateExprs);
vector<smtutil::Expression> symbArgs = currentFunctionVariables(*m_currentContract);
setCurrentBlock(*m_constructorSummaryPredicate, &symbArgs);
addAssertVerificationTarget(m_currentContract, m_currentBlock, smtutil::Expression(true), m_error.currentValue());
connectBlocks(m_currentBlock, interface(), m_error.currentValue() == 0);
@ -209,6 +208,8 @@ void CHC::endVisit(FunctionDefinition const& _function)
if (!_function.isImplemented())
return;
solAssert(m_currentFunction && m_currentContract, "");
// This is the case for base constructor inlining.
if (m_currentFunction != &_function)
{
@ -228,10 +229,10 @@ void CHC::endVisit(FunctionDefinition const& _function)
{
string suffix = m_currentContract->name() + "_" + to_string(m_currentContract->id());
auto constructorExit = createSymbolicBlock(constructorSort(), "constructor_exit_" + suffix);
connectBlocks(m_currentBlock, predicate(*constructorExit, vector<smtutil::Expression>{m_error.currentValue()} + currentStateVariables()));
connectBlocks(m_currentBlock, predicate(*constructorExit, currentFunctionVariables(*m_currentContract)));
clearIndices(m_currentContract, m_currentFunction);
auto stateExprs = vector<smtutil::Expression>{m_error.currentValue()} + currentStateVariables();
auto stateExprs = currentFunctionVariables(*m_currentContract);
setCurrentBlock(*constructorExit, &stateExprs);
}
else
@ -693,6 +694,10 @@ vector<smtutil::SortPointer> CHC::stateSorts(ContractDefinition const& _contract
smtutil::SortPointer CHC::constructorSort()
{
solAssert(m_currentContract, "");
if (auto const* constructor = m_currentContract->constructor())
return sort(*constructor);
return make_shared<smtutil::FunctionSort>(
vector<smtutil::SortPointer>{smtutil::SortProvider::uintSort} + m_stateSorts,
smtutil::SortProvider::boolSort
@ -835,7 +840,12 @@ void CHC::defineInterfacesAndSummaries(SourceUnit const& _source)
m_summaries[contract].emplace(function, createSummaryBlock(*function, *contract));
if (!base->isLibrary() && !base->isInterface() && !function->isConstructor())
if (
function->isPublic() &&
!base->isLibrary() &&
!base->isInterface() &&
!function->isConstructor()
)
{
auto state1 = stateVariablesAtIndex(1, *base);
auto state2 = stateVariablesAtIndex(2, *base);
@ -880,8 +890,13 @@ smtutil::Expression CHC::error(unsigned _idx)
return m_errorPredicate->functionValueAtIndex(_idx)({});
}
smtutil::Expression CHC::summary(ContractDefinition const&)
smtutil::Expression CHC::summary(ContractDefinition const& _contract)
{
if (auto const* constructor = _contract.constructor())
return (*m_constructorSummaryPredicate)(
currentFunctionVariables(*constructor)
);
return (*m_constructorSummaryPredicate)(
vector<smtutil::Expression>{m_error.currentValue()} +
currentStateVariables()
@ -977,15 +992,21 @@ vector<smtutil::Expression> CHC::currentStateVariables(ContractDefinition const&
}
vector<smtutil::Expression> CHC::currentFunctionVariables()
{
solAssert(m_currentFunction, "");
return currentFunctionVariables(*m_currentFunction);
}
vector<smtutil::Expression> CHC::currentFunctionVariables(FunctionDefinition const& _function)
{
vector<smtutil::Expression> initInputExprs;
vector<smtutil::Expression> mutableInputExprs;
for (auto const& var: m_currentFunction->parameters())
for (auto const& var: _function.parameters())
{
initInputExprs.push_back(m_context.variable(*var)->valueAtIndex(0));
mutableInputExprs.push_back(m_context.variable(*var)->currentValue());
}
auto returnExprs = applyMap(m_currentFunction->returnParameters(), [this](auto _var) { return currentValue(*_var); });
auto returnExprs = applyMap(_function.returnParameters(), [this](auto _var) { return currentValue(*_var); });
return vector<smtutil::Expression>{m_error.currentValue()} +
initialStateVariables() +
initInputExprs +
@ -994,6 +1015,14 @@ vector<smtutil::Expression> CHC::currentFunctionVariables()
returnExprs;
}
vector<smtutil::Expression> CHC::currentFunctionVariables(ContractDefinition const& _contract)
{
if (auto const* constructor = _contract.constructor())
return currentFunctionVariables(*constructor);
return vector<smtutil::Expression>{m_error.currentValue()} + currentStateVariables();
}
vector<smtutil::Expression> CHC::currentBlockVariables()
{
if (m_currentFunction)

3
libsolidity/formal/CHC.h
View File

@ -164,6 +164,9 @@ private:
/// @returns the current symbolic values of the current function's
/// input and output parameters.
std::vector<smtutil::Expression> currentFunctionVariables();
std::vector<smtutil::Expression> currentFunctionVariables(FunctionDefinition const& _function);
std::vector<smtutil::Expression> currentFunctionVariables(ContractDefinition const& _contract);
/// @returns the same as currentFunctionVariables plus
/// local variables.
std::vector<smtutil::Expression> currentBlockVariables();