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[SMTChecker] Support try-catch in CHC engine

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This commit is contained in:
Martin Blicha
2021-01-11 13:36:02 +01:00
parent f03245d473
commit 0f3924186e
4 changed files with 94 additions and 16 deletions
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libsolidity/formal/SMTEncoder.cpp
+23 -15
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@@ -312,20 +312,6 @@ bool SMTEncoder::visit(InlineAssembly const& _inlineAsm)
return false;
}
bool SMTEncoder::visit(TryCatchClause const& _clause)
{
if (auto params = _clause.parameters())
for (auto const& var: params->parameters())
createVariable(*var);
m_errorReporter.warning(
7645_error,
_clause.location(),
"Assertion checker does not support try/catch clauses."
);
return false;
}
void SMTEncoder::pushInlineFrame(CallableDeclaration const&)
{
pushPathCondition(currentPathConditions());
@@ -2688,7 +2674,29 @@ vector<VariableDeclaration const*> SMTEncoder::stateVariablesIncludingInheritedA
vector<VariableDeclaration const*> SMTEncoder::localVariablesIncludingModifiers(FunctionDefinition const& _function, ContractDefinition const* _contract)
{
return _function.localVariables() + modifiersVariables(_function, _contract);
return _function.localVariables() + tryCatchVariables(_function) + modifiersVariables(_function, _contract);
}
vector<VariableDeclaration const*> SMTEncoder::tryCatchVariables(FunctionDefinition const& _function)
{
struct TryCatchVarsVisitor : public ASTConstVisitor
{
bool visit(TryCatchClause const& _catchClause) override
{
if (_catchClause.parameters())
{
auto const& params = _catchClause.parameters()->parameters();
for (auto param: params)
vars.push_back(param.get());
}
return false;
}
vector<VariableDeclaration const*> vars;
} tryCatchVarsVisitor;
_function.accept(tryCatchVarsVisitor);
return tryCatchVarsVisitor.vars;
}
vector<VariableDeclaration const*> SMTEncoder::modifiersVariables(FunctionDefinition const& _function, ContractDefinition const* _contract)