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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___FORMAT_FORMATTER_CHAR_H
#define _LIBCPP___FORMAT_FORMATTER_CHAR_H
#include <__availability>
#include <__concepts/same_as.h>
#include <__config>
#include <__format/concepts.h>
#include <__format/format_parse_context.h>
#include <__format/formatter.h>
#include <__format/formatter_integral.h>
#include <__format/formatter_output.h>
#include <__format/parser_std_format_spec.h>
#include <__format/write_escaped.h>
#include <__type_traits/conditional.h>
#include <__type_traits/is_signed.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER >= 20
template <__fmt_char_type _CharT>
struct _LIBCPP_TEMPLATE_VIS __formatter_char {
public:
template <class _ParseContext>
_LIBCPP_HIDE_FROM_ABI constexpr typename _ParseContext::iterator parse(_ParseContext& __ctx) {
typename _ParseContext::iterator __result = __parser_.__parse(__ctx, __format_spec::__fields_integral);
__format_spec::__process_parsed_char(__parser_, "a character");
return __result;
}
template <class _FormatContext>
_LIBCPP_HIDE_FROM_ABI typename _FormatContext::iterator format(_CharT __value, _FormatContext& __ctx) const {
if (__parser_.__type_ == __format_spec::__type::__default || __parser_.__type_ == __format_spec::__type::__char)
return __formatter::__format_char(__value, __ctx.out(), __parser_.__get_parsed_std_specifications(__ctx));
# if _LIBCPP_STD_VER >= 23
if (__parser_.__type_ == __format_spec::__type::__debug)
return __formatter::__format_escaped_char(__value, __ctx.out(), __parser_.__get_parsed_std_specifications(__ctx));
# endif
if constexpr (sizeof(_CharT) <= sizeof(int))
// Promotes _CharT to an integral type. This reduces the number of
// instantiations of __format_integer reducing code size.
return __formatter::__format_integer(
static_cast<conditional_t<is_signed_v<_CharT>, int, unsigned>>(__value),
__ctx,
__parser_.__get_parsed_std_specifications(__ctx));
else
return __formatter::__format_integer(__value, __ctx, __parser_.__get_parsed_std_specifications(__ctx));
}
template <class _FormatContext>
_LIBCPP_HIDE_FROM_ABI typename _FormatContext::iterator format(char __value, _FormatContext& __ctx) const
requires(same_as<_CharT, wchar_t>)
{
return format(static_cast<wchar_t>(__value), __ctx);
}
# if _LIBCPP_STD_VER >= 23
_LIBCPP_HIDE_FROM_ABI constexpr void set_debug_format() { __parser_.__type_ = __format_spec::__type::__debug; }
# endif
__format_spec::__parser<_CharT> __parser_;
};
template <>
struct _LIBCPP_TEMPLATE_VIS formatter<char, char> : public __formatter_char<char> {};
# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
template <>
struct _LIBCPP_TEMPLATE_VIS formatter<char, wchar_t> : public __formatter_char<wchar_t> {};
template <>
struct _LIBCPP_TEMPLATE_VIS formatter<wchar_t, wchar_t> : public __formatter_char<wchar_t> {
};
# endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
#endif //_LIBCPP_STD_VER >= 20
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___FORMAT_FORMATTER_CHAR_H
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