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#ifndef OPENMW_COMPONENTS_SERIALIZATION_FORMAT_H
#define OPENMW_COMPONENTS_SERIALIZATION_FORMAT_H
#include <algorithm>
#include <array>
#include <cstddef>
#include <cstdint>
#include <functional>
#include <type_traits>
#include <utility>
#include <vector>
namespace Serialization
{
enum class Mode
{
Read,
Write,
};
template <class>
struct IsContiguousContainer : std::false_type
{
};
template <class... Args>
struct IsContiguousContainer<std::vector<Args...>> : std::true_type
{
};
template <class T, std::size_t n>
struct IsContiguousContainer<std::array<T, n>> : std::true_type
{
};
template <class T>
inline constexpr bool isContiguousContainer = IsContiguousContainer<std::decay_t<T>>::value;
template <Mode mode, class Derived>
struct Format
{
template <class Visitor, class T>
void operator()(Visitor&& visitor, T* data, std::size_t size) const
{
if constexpr (std::is_arithmetic_v<T> || std::is_enum_v<T>)
visitor(self(), data, size);
else
std::for_each(data, data + size, [&](auto& v) { visitor(self(), v); });
}
template <class Visitor, class T, std::size_t size>
void operator()(Visitor&& visitor, T (&data)[size]) const
{
self()(std::forward<Visitor>(visitor), data, size);
}
template <class Visitor, class T>
auto operator()(Visitor&& visitor, T&& value) const -> std::enable_if_t<isContiguousContainer<T>>
{
if constexpr (mode == Mode::Write)
visitor(self(), static_cast<std::uint64_t>(value.size()));
else
{
static_assert(mode == Mode::Read);
std::uint64_t size = 0;
visitor(self(), size);
value.resize(static_cast<std::size_t>(size));
}
self()(std::forward<Visitor>(visitor), value.data(), value.size());
}
const Derived& self() const { return static_cast<const Derived&>(*this); }
};
}
#endif
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