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#pragma once
#include "binary-writer.hpp"
#include "binary-serializer.hpp"
#include "compat/assert.hpp"
#include <type_traits>
#include <Corrade/Containers/StringView.h>
namespace floormat::Serialize {
template<std::output_iterator<char> It>
constexpr binary_writer<It>::binary_writer(It it) noexcept : it{it}, _bytes_written{0} {}
template<std::output_iterator<char> It>
template<integer T>
constexpr void binary_writer<It>::write(T x) noexcept
{
union {
T datum;
char bytes[sizeof(T)];
} buf;
if (std::is_constant_evaluated())
for (std::size_t i = 0; i < std::size(buf.bytes); i++)
buf.bytes[i] = 0;
_bytes_written += sizeof(T);
if constexpr(sizeof(T) == 1)
buf.bytes[0] = (char)x;
else if (!std::is_constant_evaluated())
buf.datum = maybe_byteswap(x);
else
for (std::size_t i = 0; i < sizeof(T); x >>= 8, i++)
buf.bytes[i] = (char)(unsigned char)x;
for (std::size_t i = 0; i < sizeof(T); i++)
*it++ = buf.bytes[i];
}
template<std::output_iterator<char> It>
template<std::floating_point T>
void binary_writer<It>::write(T x) noexcept
{
union {
T datum;
char bytes[sizeof(T)];
} buf;
_bytes_written += sizeof(T);
buf.datum = maybe_byteswap(x);
for (std::size_t i = 0; i < sizeof(T); i++)
*it++ = buf.bytes[i];
}
template<std::output_iterator<char> It, serializable T>
constexpr binary_writer<It>& operator<<(binary_writer<It>& writer, T x) noexcept
{
writer.template write<T>(x);
return writer;
}
template<std::output_iterator<char> It>
constexpr void binary_writer<It>::write_asciiz_string(StringView str) noexcept
{
fm_debug_assert(str.flags() & StringViewFlag::NullTerminated);
const auto sz = str.size();
_bytes_written += sz + 1;
for (std::size_t i = 0; i < sz; i++)
*it++ = str[i];
*it++ = '\0';
}
} // namespace floormat::Serialize
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