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Minor refactoring

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This commit is contained in:
Bhargava Shastry 2020-01-04 16:44:06 +01:00
parent 8c9c5b74ae
commit 3d8b9f03fe
2 changed files with 42 additions and 21 deletions
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35
test/tools/ossfuzz/protomutators/YulProtoMutator.cpp
View File

@ -977,4 +977,39 @@ void YulProtoMutator::configureCall(FunctionCall *_call, unsigned int _seed)
case FunctionCall_Returns_ZERO:
break;
}
}
template <typename T>
T YulProtoMutator::EnumTypeConverter<T>::validEnum(unsigned _seed)
{
auto ret = static_cast<T>(_seed % (enumMax() + 1) + enumMin());
if constexpr (std::is_same_v<std::decay_t<T>, FunctionCall_Returns>)
yulAssert(FunctionCall_Returns_IsValid(ret), "Yul proto mutator: Invalid enum");
else if constexpr (std::is_same_v<std::decay_t<T>, StoreFunc_Storage>)
yulAssert(StoreFunc_Storage_IsValid(ret), "Yul proto mutator: Invalid enum");
else
static_assert(AlwaysFalse<T>::value, "Yul proto mutator: non-exhaustive visitor.");
return ret;
}
template <typename T>
int YulProtoMutator::EnumTypeConverter<T>::enumMax()
{
if constexpr (std::is_same_v<std::decay_t<T>, FunctionCall_Returns>)
return FunctionCall_Returns_Returns_MAX;
else if constexpr (std::is_same_v<std::decay_t<T>, StoreFunc_Storage>)
return StoreFunc_Storage_Storage_MAX;
else
static_assert(AlwaysFalse<T>::value, "Yul proto mutator: non-exhaustive visitor.");
}
template <typename T>
int YulProtoMutator::EnumTypeConverter<T>::enumMin()
{
if constexpr (std::is_same_v<std::decay_t<T>, FunctionCall_Returns>)
return FunctionCall_Returns_Returns_MIN;
else if constexpr (std::is_same_v<std::decay_t<T>, StoreFunc_Storage>)
return StoreFunc_Storage_Storage_MIN;
else
static_assert(AlwaysFalse<T>::value, "Yul proto mutator: non-exhaustive visitor.");
}

28
test/tools/ossfuzz/protomutators/YulProtoMutator.h
View File

@ -55,29 +55,15 @@ struct YulProtoMutator
{
T enumFromSeed(unsigned _seed)
{
// TODO: Assert validity of return enum.
return static_cast<T>(_seed % (enumMax() + 1) + enumMin());
return validEnum(_seed);
}
static int enumMax()
{
if constexpr (std::is_same_v<std::decay_t<T>, FunctionCall_Returns>)
return FunctionCall_Returns_Returns_MAX;
else if constexpr (std::is_same_v<std::decay_t<T>, StoreFunc_Storage>)
return StoreFunc_Storage_Storage_MAX;
else
static_assert(AlwaysFalse<T>::value, "Yul proto mutator: non-exhaustive visitor.");
}
static int enumMin()
{
if constexpr (std::is_same_v<std::decay_t<T>, FunctionCall_Returns>)
return FunctionCall_Returns_Returns_MIN;
else if constexpr (std::is_same_v<std::decay_t<T>, StoreFunc_Storage>)
return StoreFunc_Storage_Storage_MIN;
else
static_assert(AlwaysFalse<T>::value, "Yul proto mutator: non-exhaustive visitor.");
}
/// Return a valid enum of type T from _seed
T validEnum(unsigned _seed);
/// Return maximum enum value for enum of type T
static int enumMax();
/// Return minimum enum value for enum of type T
static int enumMin();
};
static constexpr unsigned s_lowIP = 827;