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This commit is contained in:
Bhargava Shastry 2021-06-09 13:29:54 +02:00
parent 66d625aa21
commit f900fe7262
3 changed files with 62 additions and 5 deletions
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1
test/tools/ossfuzz/Generators.h
View File

@ -56,5 +56,6 @@
MACRO(SourceUnitGenerator) SEP \
MACRO(StatementGenerator) SEP \
MACRO(TestCaseGenerator) SEP \
MACRO(TryCatchStmtGenerator) SEP \
MACRO(VarDeclStmtGenerator) SEP \
MACRO(WhileStmtGenerator) ENDSEP

52
test/tools/ossfuzz/SolidityGenerator.cpp
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@ -1567,13 +1567,36 @@ string FunctionCallGenerator::callStmt(shared_ptr<FunctionState> _callee)
return callStmtStream.str();
}
string FunctionCallGenerator::generateTryCatchCall()
{
set<shared_ptr<FunctionState>> availableFunctions;
if (state->insideContract)
availableFunctions = state->currentContractState()->functions;
if (availableFunctions.empty())
return {};
shared_ptr<FunctionState> callee;
if (availableFunctions.size() > 1)
{
for (auto const& i: availableFunctions)
if (uRandDist()->probable(availableFunctions.size()))
callee = i;
}
else
callee = *availableFunctions.begin();
if (callee)
{
ostringstream tryCatchCall;
// TODO: Implement try-catch stmt
return tryCatchCall.str();
}
else
return {};
}
string FunctionCallGenerator::visit()
{
// // TODO: Generalise call to varargs function
// for (auto const& f: state->currentFunctionState()->inputs)
// if (holds_alternative<shared_ptr<FunctionType>>(f.first))
// return indentation() + f.second + "();\n";
// Consolidate available functions
auto availableFunctions = state->currentSourceState()->freeFunctions;
if (state->insideContract)
@ -1597,6 +1620,25 @@ string FunctionCallGenerator::visit()
return {};
}
string TryCatchStmtGenerator::visit()
{
auto availableFunctions = state->currentSourceState()->freeFunctions;
if (state->insideContract)
availableFunctions += state->currentContractState()->functions;
if (availableFunctions.empty())
return {};
shared_ptr<FunctionState> callee;
if (availableFunctions.size() > 1)
{
for (auto const& i: availableFunctions)
if (uRandDist()->probable(availableFunctions.size()))
callee = i;
}
else
callee = *availableFunctions.begin();
}
template <typename T>
shared_ptr<T> SolidityGenerator::generator()
{

14
test/tools/ossfuzz/SolidityGenerator.h
View File

@ -1281,9 +1281,23 @@ public:
{
return "Function call generator";
}
std::string generateTryCatchCall();
private:
std::string lhs(std::vector<std::pair<SolidityTypePtr, std::string>>& _functionReturnTypeNames);
std::optional<std::string> rhs(std::vector<std::pair<SolidityTypePtr, std::string>>& _functionInputTypeNames);
std::string callStmt(std::shared_ptr<FunctionState> _callee);
};
class TryCatchStmtGenerator: public GeneratorBase
{
public:
TryCatchStmtGenerator(SolidityGenerator* _mutator):
GeneratorBase(std::move(_mutator))
{}
std::string visit() override;
std::string name() override
{
return "Try/Catch statement generator";
}
};
}