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#ifndef FORMAT_STRING_INL_H_
#error "Direct inclusion of this file is not allowed, include format_string.h"
// For the sake of sane code completion.
#include "format_string.h"
#endif
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
template <class... TArgs>
template <class T>
requires std::constructible_from<std::string_view, T>
consteval TBasicFormatString<TArgs...>::TBasicFormatString(const T& fmt)
: Format_(fmt)
{
CheckFormattability();
#if !defined(NDEBUG) && !defined(YT_DISABLE_FORMAT_STATIC_ANALYSIS)
NDetail::TFormatAnalyser::ValidateFormat<std::remove_cvref_t<TArgs>...>(Format_);
#endif
}
template <class... TArgs>
TStringBuf TBasicFormatString<TArgs...>::Get() const noexcept
{
return {Format_};
}
template <class... TArgs>
consteval void TBasicFormatString<TArgs...>::CheckFormattability()
{
#if !defined(NDEBUG) && !defined(YT_DISABLE_FORMAT_STATIC_ANALYSIS)
using TTuple = std::tuple<std::remove_cvref_t<TArgs>...>;
[] <size_t... Idx> (std::index_sequence<Idx...>) {
([] {
if constexpr (!CFormattable<std::tuple_element_t<Idx, TTuple>>) {
CrashCompilerClassIsNotFormattable<std::tuple_element_t<Idx, TTuple>>();
}
} (), ...);
} (std::index_sequence_for<TArgs...>());
#endif
}
template <class... TArgs>
TBasicFormatString<TArgs...>::TBasicFormatString(TRuntimeFormat fmt)
: Format_(fmt.Get())
{
// NB(arkady-e1ppa): StaticFormat performs the
// formattability check of the args in a way
// that provides more useful information
// than a simple static_assert with conjunction.
// Additionally, the latter doesn't work properly
// for older clang version.
static constexpr auto argsChecker = [] {
CheckFormattability();
return 42;
} ();
Y_UNUSED(argsChecker);
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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