1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70
|
// -*- 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_CONTAINER_ADAPTOR_H
#define _LIBCPP___FORMAT_CONTAINER_ADAPTOR_H
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
#include <__availability>
#include <__config>
#include <__format/concepts.h>
#include <__format/formatter.h>
#include <__format/range_default_formatter.h>
#include <queue>
#include <stack>
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER > 20
// [container.adaptors.format] only specifies the library should provide the
// formatter specializations, not which header should provide them.
// Since <format> includes a lot of headers, add these headers here instead of
// adding more dependencies like, locale, optinal, string, tuple, etc. to the
// adaptor headers. To use the format functions users already include <format>.
template <class _Adaptor, class _CharT>
struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT __formatter_container_adaptor {
private:
using __maybe_const_adaptor = __fmt_maybe_const<_Adaptor, _CharT>;
formatter<typename _Adaptor::container_type, _CharT> __underlying_;
public:
template <class _ParseContext>
_LIBCPP_HIDE_FROM_ABI constexpr typename _ParseContext::iterator parse(_ParseContext& __ctx) {
return __underlying_.parse(__ctx);
}
template <class _FormatContext>
_LIBCPP_HIDE_FROM_ABI typename _FormatContext::iterator
format(__maybe_const_adaptor& __adaptor, _FormatContext& __ctx) const {
return __underlying_.format(__adaptor.__get_container(), __ctx);
}
};
template <class _CharT, class _Tp, formattable<_CharT> _Container>
struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<queue<_Tp, _Container>, _CharT>
: public __formatter_container_adaptor<queue<_Tp, _Container>, _CharT> {};
template <class _CharT, class _Tp, class _Container, class _Compare>
struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<priority_queue<_Tp, _Container, _Compare>, _CharT>
: public __formatter_container_adaptor<priority_queue<_Tp, _Container, _Compare>, _CharT> {};
template <class _CharT, class _Tp, formattable<_CharT> _Container>
struct _LIBCPP_TEMPLATE_VIS _LIBCPP_AVAILABILITY_FORMAT formatter<stack<_Tp, _Container>, _CharT>
: public __formatter_container_adaptor<stack<_Tp, _Container>, _CharT> {};
#endif //_LIBCPP_STD_VER > 20
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___FORMAT_CONTAINER_ADAPTOR_H
|