From 644c757ffb94ff2f452976228fee9bbdfba762fa Mon Sep 17 00:00:00 2001
From: CoprDistGit <infra@openeuler.org>
Date: Sat, 11 Jan 2025 07:17:39 +0000
Subject: automatic import of chromium

---
 chromium-127-clang17-traitors.patch | 285 ++++++++++++++++++++++++++++++++++++
 1 file changed, 285 insertions(+)
 create mode 100644 chromium-127-clang17-traitors.patch

(limited to 'chromium-127-clang17-traitors.patch')

diff --git a/chromium-127-clang17-traitors.patch b/chromium-127-clang17-traitors.patch
new file mode 100644
index 0000000..b8ff763
--- /dev/null
+++ b/chromium-127-clang17-traitors.patch
@@ -0,0 +1,285 @@
+author: Andres Salomon <dilinger@debian.org>
+
+Work around the following:
+
+In file included from ../../mojo/public/cpp/bindings/lib/native_s:32
+truct_serialization.cc:5:
+In file included from ../../mojo/public/cpp/bindings/lib/native_struct_serialization.h:13:
+In file included from ../../base/check_op.h:9:
+In file included from /usr/bin/../include/c++/v1/string:545:
+In file included from /usr/bin/../include/c++/v1/__functional/hash.h:24:
+In file included from /usr/bin/../include/c++/v1/__utility/pair.h:16:
+In file included from /usr/bin/../include/c++/v1/__fwd/get.h:16:
+In file included from /usr/bin/../include/c++/v1/__fwd/subrange.h:20:
+In file included from /usr/bin/../include/c++/v1/__iterator/concepts.h:34:
+/usr/bin/../include/c++/v1/__memory/pointer_traits.h:118:22: error: implicit instantiation of undefined template 'std::__pointer_traits_element_type<IPC::MessageAttachment::Type, false>'
+    typedef typename __pointer_traits_element_type<pointer>::type    element_type;
+                     ^
+../../base/types/to_address.h:32:40: note: in instantiation of template class 'std::pointer_traits<IPC::MessageAttachment::Type>' requested here
+  requires requires(const P& p) { std::pointer_traits<P>::to_address(p); } ||
+                                       ^
+../../base/types/to_address.h:32:35: note: in instantiation of requirement here
+../../mojo/public/cpp/bindings/lib/native_struct_serialization.cc  requires requires(const P& p) { std::pointer_traits<P>::to_address(p); } ||
+                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+../../base/types/to_address.h:32:12: note: while substituting template arguments into constraint expression here
+  requires requires(const P& p) { std::pointer_traits<P>::to_address(p); } ||
+           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+../../mojo/public/cpp/bindings/type_converter.h:103:26: note: while checking constraint satisfaction for template 'to_address<IPC::MessageAttachment::Type>' required here
+    { mojo::ConvertTo<T>(base::to_address(obj)) } -> std::same_as<T>;
+                         ^~~~
+
+
+This turns out to be a clang-16 bug, fixed in clang-18:
+https://github.com/llvm/llvm-project/issues/67449
+
+This is just the pointer_traits.h header from libc++-18-dev,
+with a minor tweak to get things building.
+
+--- /dev/null
++++ b/__memory/pointer_traits.h
+@@ -0,0 +1,245 @@
++// -*- 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___MEMORY_POINTER_TRAITS_H
++#define _LIBCPP___MEMORY_POINTER_TRAITS_H
++
++#include <__config>
++#include <__memory/addressof.h>
++#include <__type_traits/conditional.h>
++#include <__type_traits/conjunction.h>
++#include <__type_traits/decay.h>
++#include <__type_traits/is_class.h>
++#include <__type_traits/is_function.h>
++#include <__type_traits/is_void.h>
++#include <__type_traits/void_t.h>
++#include <__utility/declval.h>
++#include <cstddef>
++
++#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
++#  pragma GCC system_header
++#endif
++
++_LIBCPP_BEGIN_NAMESPACE_STD
++
++template <class _Tp, class = void>
++struct __has_element_type : false_type {};
++
++template <class _Tp>
++struct __has_element_type<_Tp, __void_t<typename _Tp::element_type> > : true_type {};
++
++template <class _Ptr, bool = __has_element_type<_Ptr>::value>
++struct __pointer_traits_element_type {};
++
++template <class _Ptr>
++struct __pointer_traits_element_type<_Ptr, true> {
++  typedef _LIBCPP_NODEBUG typename _Ptr::element_type type;
++};
++
++template <template <class, class...> class _Sp, class _Tp, class... _Args>
++struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, true> {
++  typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::element_type type;
++};
++
++template <template <class, class...> class _Sp, class _Tp, class... _Args>
++struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, false> {
++  typedef _LIBCPP_NODEBUG _Tp type;
++};
++
++template <class _Tp, class = void>
++struct __has_difference_type : false_type {};
++
++template <class _Tp>
++struct __has_difference_type<_Tp, __void_t<typename _Tp::difference_type> > : true_type {};
++
++template <class _Ptr, bool = __has_difference_type<_Ptr>::value>
++struct __pointer_traits_difference_type {
++  typedef _LIBCPP_NODEBUG ptrdiff_t type;
++};
++
++template <class _Ptr>
++struct __pointer_traits_difference_type<_Ptr, true> {
++  typedef _LIBCPP_NODEBUG typename _Ptr::difference_type type;
++};
++
++template <class _Tp, class _Up>
++struct __has_rebind {
++private:
++  template <class _Xp>
++  static false_type __test(...);
++  _LIBCPP_SUPPRESS_DEPRECATED_PUSH
++  template <class _Xp>
++  static true_type __test(typename _Xp::template rebind<_Up>* = 0);
++  _LIBCPP_SUPPRESS_DEPRECATED_POP
++
++public:
++  static const bool value = decltype(__test<_Tp>(0))::value;
++};
++
++template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
++struct __pointer_traits_rebind {
++#ifndef _LIBCPP_CXX03_LANG
++  typedef _LIBCPP_NODEBUG typename _Tp::template rebind<_Up> type;
++#else
++  typedef _LIBCPP_NODEBUG typename _Tp::template rebind<_Up>::other type;
++#endif
++};
++
++template <template <class, class...> class _Sp, class _Tp, class... _Args, class _Up>
++struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, true> {
++#ifndef _LIBCPP_CXX03_LANG
++  typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::template rebind<_Up> type;
++#else
++  typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::template rebind<_Up>::other type;
++#endif
++};
++
++template <template <class, class...> class _Sp, class _Tp, class... _Args, class _Up>
++struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, false> {
++  typedef _Sp<_Up, _Args...> type;
++};
++
++template <class _Ptr, class = void>
++struct __pointer_traits_impl {};
++
++template <class _Ptr>
++struct __pointer_traits_impl<_Ptr, __void_t<typename __pointer_traits_element_type<_Ptr>::type> > {
++  typedef _Ptr pointer;
++  typedef typename __pointer_traits_element_type<pointer>::type element_type;
++  typedef typename __pointer_traits_difference_type<pointer>::type difference_type;
++
++#ifndef _LIBCPP_CXX03_LANG
++  template <class _Up>
++  using rebind = typename __pointer_traits_rebind<pointer, _Up>::type;
++#else
++  template <class _Up>
++  struct rebind {
++    typedef typename __pointer_traits_rebind<pointer, _Up>::type other;
++  };
++#endif // _LIBCPP_CXX03_LANG
++
++private:
++  struct __nat {};
++
++public:
++  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 static pointer
++  pointer_to(__conditional_t<is_void<element_type>::value, __nat, element_type>& __r) {
++    return pointer::pointer_to(__r);
++  }
++};
++
++template <class _Ptr>
++struct _LIBCPP_TEMPLATE_VIS pointer_traits : __pointer_traits_impl<_Ptr> {};
++
++template <class _Tp>
++struct _LIBCPP_TEMPLATE_VIS pointer_traits<_Tp*> {
++  typedef _Tp* pointer;
++  typedef _Tp element_type;
++  typedef ptrdiff_t difference_type;
++
++#ifndef _LIBCPP_CXX03_LANG
++  template <class _Up>
++  using rebind = _Up*;
++#else
++  template <class _Up>
++  struct rebind {
++    typedef _Up* other;
++  };
++#endif
++
++private:
++  struct __nat {};
++
++public:
++  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 static pointer
++  pointer_to(__conditional_t<is_void<element_type>::value, __nat, element_type>& __r) _NOEXCEPT {
++    return std::addressof(__r);
++  }
++};
++
++#ifndef _LIBCPP_CXX03_LANG
++template <class _From, class _To>
++using __rebind_pointer_t = typename pointer_traits<_From>::template rebind<_To>;
++#else
++template <class _From, class _To>
++using __rebind_pointer_t = typename pointer_traits<_From>::template rebind<_To>::other;
++#endif
++
++// to_address
++
++template <class _Pointer, class = void>
++struct __to_address_helper;
++
++template <class _Tp>
++_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _Tp* __to_address(_Tp* __p) _NOEXCEPT {
++  static_assert(!is_function<_Tp>::value, "_Tp is a function type");
++  return __p;
++}
++
++template <class _Pointer, class = void>
++struct _HasToAddress : false_type {};
++
++template <class _Pointer>
++struct _HasToAddress<_Pointer, decltype((void)pointer_traits<_Pointer>::to_address(std::declval<const _Pointer&>())) >
++    : true_type {};
++
++template <class _Pointer, class = void>
++struct _HasArrow : false_type {};
++
++template <class _Pointer>
++struct _HasArrow<_Pointer, decltype((void)std::declval<const _Pointer&>().operator->()) > : true_type {};
++
++template <class _Pointer>
++struct _IsFancyPointer {
++  static const bool value = _HasArrow<_Pointer>::value || _HasToAddress<_Pointer>::value;
++};
++
++// enable_if is needed here to avoid instantiating checks for fancy pointers on raw pointers
++template <class _Pointer, class = __enable_if_t< _And<is_class<_Pointer>, _IsFancyPointer<_Pointer> >::value > >
++_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
++    decay_t<decltype(__to_address_helper<_Pointer>::__call(std::declval<const _Pointer&>()))>
++    __to_address(const _Pointer& __p) _NOEXCEPT {
++  return __to_address_helper<_Pointer>::__call(__p);
++}
++
++template <class _Pointer, class>
++struct __to_address_helper {
++  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR static decltype(std::__to_address(
++      std::declval<const _Pointer&>().operator->()))
++  __call(const _Pointer& __p) _NOEXCEPT {
++    return std::__to_address(__p.operator->());
++  }
++};
++
++template <class _Pointer>
++struct __to_address_helper<_Pointer,
++                           decltype((void)pointer_traits<_Pointer>::to_address(std::declval<const _Pointer&>()))> {
++  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR static decltype(pointer_traits<_Pointer>::to_address(
++      std::declval<const _Pointer&>()))
++  __call(const _Pointer& __p) _NOEXCEPT {
++    return pointer_traits<_Pointer>::to_address(__p);
++  }
++};
++
++#if _LIBCPP_STD_VER >= 20
++template <class _Tp>
++inline _LIBCPP_HIDE_FROM_ABI constexpr auto to_address(_Tp* __p) noexcept {
++  return std::__to_address(__p);
++}
++
++template <class _Pointer>
++inline _LIBCPP_HIDE_FROM_ABI constexpr auto to_address(const _Pointer& __p) noexcept
++    -> decltype(std::__to_address(__p)) {
++  return std::__to_address(__p);
++}
++#endif
++
++_LIBCPP_END_NAMESPACE_STD
++
++#endif // _LIBCPP___MEMORY_POINTER_TRAITS_H
-- 
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