1729480d24
`formatter::parse` and `formatter::format` only have to accept `basic_format_parse_context` and `basic_format_context` respectively, which are only guaranteed to be provided via `<format>`. This allows us to only declare the functions for `formatter<bool>` in `<vector>` and define them if `<format>` is included. This reduces the amount of time it takes to parse `<vector>` by ~15% on my system.
61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___FORMAT_FORMATTER_BOOL_IMPL_H
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#define _LIBCPP___FORMAT_FORMATTER_BOOL_IMPL_H
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#include <__assert>
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#include <__config>
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#include <__format/concepts.h>
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#include <__format/formatter_bool.h>
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#include <__format/formatter_integral.h>
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#include <__format/parser_std_format_spec.h>
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#include <__utility/unreachable.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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#if _LIBCPP_STD_VER >= 20
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_LIBCPP_BEGIN_NAMESPACE_STD
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// This function is separated from formatter<bool> to avoid pulling in a bunch of code from <format> that we aren't
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// required to provide in other headers where we need formatter<bool> itself to be complete.
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template <__fmt_char_type _CharT, class _FormatContext>
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_LIBCPP_HIDE_FROM_ABI typename _FormatContext::iterator
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__formatter_bool_format(bool __value, __format_spec::__parser<_CharT> __parser, _FormatContext& __ctx) {
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switch (__parser.__type_) {
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case __format_spec::__type::__default:
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case __format_spec::__type::__string:
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return __formatter::__format_bool(__value, __ctx, __parser.__get_parsed_std_specifications(__ctx));
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case __format_spec::__type::__binary_lower_case:
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case __format_spec::__type::__binary_upper_case:
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case __format_spec::__type::__octal:
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case __format_spec::__type::__decimal:
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case __format_spec::__type::__hexadecimal_lower_case:
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case __format_spec::__type::__hexadecimal_upper_case:
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// Promotes bool to an integral type. This reduces the number of
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// instantiations of __format_integer reducing code size.
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return __formatter::__format_integer(
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static_cast<unsigned>(__value), __ctx, __parser.__get_parsed_std_specifications(__ctx));
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default:
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_LIBCPP_ASSERT_INTERNAL(false, "The parse function should have validated the type");
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__libcpp_unreachable();
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}
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER >= 20
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#endif // _LIBCPP___FORMAT_FORMATTER_BOOL_IMPL_H
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