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#ifndef FORMAT_ARG_INL_H_
#error "Direct inclusion of this file is not allowed, include format_arg.h"
// For the sake of sane code completion.
#include "format_arg.h"
#endif
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
namespace NDetail {
template <class T>
constexpr std::string_view QualidName()
{
constexpr size_t openBracketOffset = 5;
constexpr size_t closeBracketOffset = 1;
constexpr std::string_view func = __PRETTY_FUNCTION__;
constexpr auto left = std::find(std::begin(func), std::end(func), '[') + openBracketOffset;
return std::string_view(left, std::prev(std::end(func), closeBracketOffset));
}
template <class T>
constexpr bool IsNYTName()
{
constexpr auto qualidName = QualidName<T>();
return qualidName.find("NYT::") == 0;
}
} // namespace NDetail
////////////////////////////////////////////////////////////////////////////////
template <bool Hot, size_t N, std::array<char, N> List, class TFrom>
consteval auto TFormatArgBase::ExtendConversion()
{
static_assert(std::same_as<TFrom, TFormatArgBase> || CFormattable<TFrom>);
return AppendArrays<Hot, N, List, &TFormatArg<TFrom>::ConversionSpecifiers>();
}
template <bool Hot, size_t N, std::array<char, N> List, class TFrom>
consteval auto TFormatArgBase::ExtendFlags()
{
static_assert(std::same_as<TFrom, TFormatArgBase> || CFormattable<TFrom>);
return AppendArrays<Hot, N, List, &TFormatArg<TFrom>::FlagSpecifiers>();
}
template <bool Hot, size_t N, std::array<char, N> List, auto* From>
consteval auto TFormatArgBase::AppendArrays()
{
auto& from = *From;
return [] <size_t... I, size_t... J> (
std::index_sequence<I...>,
std::index_sequence<J...>) {
if constexpr (Hot) {
return std::array{List[J]..., from[I]...};
} else {
return std::array{from[I]..., List[J]...};
}
} (
std::make_index_sequence<std::size(from)>(),
std::make_index_sequence<N>());
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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