Upgrade to 2022-era LLVM LIBCXX

2025-06-03 19:22:27 +00:00 · 2024-05-27 02:12:27 -07:00 · 2024-05-27 02:12:27 -07:00 · 8e68384e15
commit 8e68384e15
parent 2f4ca71f26
2078 changed files with 165657 additions and 65010 deletions
--- a/third_party/libcxx/__ranges/data.h
+++ b/third_party/libcxx/__ranges/data.h
@ -0,0 +1,112 @@
+// -*- 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___RANGES_DATA_H
+#define _LIBCPP___RANGES_DATA_H
+
+#include <__concepts/class_or_enum.h>
+#include <__config>
+#include <__iterator/concepts.h>
+#include <__iterator/iterator_traits.h>
+#include <__memory/pointer_traits.h>
+#include <__ranges/access.h>
+#include <__type_traits/decay.h>
+#include <__type_traits/is_object.h>
+#include <__type_traits/is_pointer.h>
+#include <__type_traits/is_reference.h>
+#include <__type_traits/remove_pointer.h>
+#include <__type_traits/remove_reference.h>
+#include <__utility/auto_cast.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+#if _LIBCPP_STD_VER >= 20
+
+// [range.prim.data]
+
+namespace ranges {
+namespace __data {
+  template <class _Tp>
+  concept __ptr_to_object = is_pointer_v<_Tp> && is_object_v<remove_pointer_t<_Tp>>;
+
+  template <class _Tp>
+  concept __member_data =
+    __can_borrow<_Tp> &&
+    __workaround_52970<_Tp> &&
+    requires(_Tp&& __t) {
+      { _LIBCPP_AUTO_CAST(__t.data()) } -> __ptr_to_object;
+    };
+
+  template <class _Tp>
+  concept __ranges_begin_invocable =
+    !__member_data<_Tp> &&
+    __can_borrow<_Tp> &&
+    requires(_Tp&& __t) {
+      { ranges::begin(__t) } -> contiguous_iterator;
+    };
+
+  struct __fn {
+    template <__member_data _Tp>
+    _LIBCPP_HIDE_FROM_ABI
+    constexpr auto operator()(_Tp&& __t) const
+        noexcept(noexcept(__t.data())) {
+      return __t.data();
+    }
+
+    template<__ranges_begin_invocable _Tp>
+    _LIBCPP_HIDE_FROM_ABI
+    constexpr auto operator()(_Tp&& __t) const
+        noexcept(noexcept(std::to_address(ranges::begin(__t)))) {
+      return std::to_address(ranges::begin(__t));
+    }
+  };
+} // namespace __data
+
+inline namespace __cpo {
+  inline constexpr auto data = __data::__fn{};
+} // namespace __cpo
+} // namespace ranges
+
+// [range.prim.cdata]
+
+namespace ranges {
+namespace __cdata {
+  struct __fn {
+    template <class _Tp>
+      requires is_lvalue_reference_v<_Tp&&>
+    [[nodiscard]] _LIBCPP_HIDE_FROM_ABI
+    constexpr auto operator()(_Tp&& __t) const
+      noexcept(noexcept(ranges::data(static_cast<const remove_reference_t<_Tp>&>(__t))))
+      -> decltype(      ranges::data(static_cast<const remove_reference_t<_Tp>&>(__t)))
+      { return          ranges::data(static_cast<const remove_reference_t<_Tp>&>(__t)); }
+
+    template <class _Tp>
+      requires is_rvalue_reference_v<_Tp&&>
+    [[nodiscard]] _LIBCPP_HIDE_FROM_ABI
+    constexpr auto operator()(_Tp&& __t) const
+      noexcept(noexcept(ranges::data(static_cast<const _Tp&&>(__t))))
+      -> decltype(      ranges::data(static_cast<const _Tp&&>(__t)))
+      { return          ranges::data(static_cast<const _Tp&&>(__t)); }
+  };
+} // namespace __cdata
+
+inline namespace __cpo {
+  inline constexpr auto cdata = __cdata::__fn{};
+} // namespace __cpo
+} // namespace ranges
+
+#endif // _LIBCPP_STD_VER >= 20
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___RANGES_DATA_H