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#pragma once
#include "format_analyser.h"
#include <util/generic/strbuf.h>
#if (!__clang__ || __clang_major__ < 16)
#define YT_DISABLE_FORMAT_STATIC_ANALYSIS
#endif
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
// Explicitly create TRuntimeFormat if you wish to
// use runtime/non-literal value as format.
class TRuntimeFormat
{
public:
explicit TRuntimeFormat(TStringBuf fmt);
TStringBuf Get() const noexcept;
private:
TStringBuf Format_;
};
// This class used to properly bind to
// string literals and allow compile-time parsing/checking
// of those. If you need a runtime format, use TRuntimeFormat.
template <class... TArgs>
class TBasicFormatString
{
public:
// Can be used to perform compile-time check of format.
template <class T>
requires std::constructible_from<std::string_view, T>
consteval TBasicFormatString(const T& fmt);
TBasicFormatString(TRuntimeFormat fmt);
TStringBuf Get() const noexcept;
static consteval void CheckFormattability();
// Data used for compile-time slicing of the format string.
NDetail::TFormatAnalyser::TMarkerLocations<TArgs...> Markers = {};
NDetail::TFormatAnalyser::TEscapeLocations Escapes = {};
private:
std::string_view Format_;
template <class T>
static void CrashCompilerClassIsNotFormattable();
};
// Used to properly infer template arguments in Format.
template <class... TArgs>
using TFormatString = TBasicFormatString<std::type_identity_t<TArgs>...>;
////////////////////////////////////////////////////////////////////////////////
template <class T>
concept CStringLiteral = requires (T& t) {
[] (const char*) { } (t);
};
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
#define FORMAT_STRING_INL_H_
#include "format_string-inl.h"
#undef FORMAT_STRING_INL_H_
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