368faacac7
This commit reverts 5aaefa51 (and also partly 7f285f48e77 and b6d75682f9, which were related to the original commit). As landed, 5aaefa51 had unintended consequences on some downstream bots and didn't have proper coverage upstream due to a few subtle things. Implementing this is something we should do in libc++, however we'll first need to address a few issues listed in https://reviews.llvm.org/D106124#3349710. Differential Revision: https://reviews.llvm.org/D120683
104 lines
2.9 KiB
C++
104 lines
2.9 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___FILESYSTEM_FILESYSTEM_ERROR_H
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#define _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
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#include <__availability>
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#include <__config>
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#include <__filesystem/path.h>
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#include <__memory/shared_ptr.h>
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#include <iosfwd>
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#include <new>
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#include <system_error>
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#include <type_traits>
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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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#ifndef _LIBCPP_CXX03_LANG
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_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
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class _LIBCPP_AVAILABILITY_FILESYSTEM _LIBCPP_EXCEPTION_ABI filesystem_error : public system_error {
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public:
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_LIBCPP_INLINE_VISIBILITY
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filesystem_error(const string& __what, error_code __ec)
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: system_error(__ec, __what),
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__storage_(make_shared<_Storage>(path(), path())) {
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__create_what(0);
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}
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_LIBCPP_INLINE_VISIBILITY
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filesystem_error(const string& __what, const path& __p1, error_code __ec)
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: system_error(__ec, __what),
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__storage_(make_shared<_Storage>(__p1, path())) {
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__create_what(1);
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}
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_LIBCPP_INLINE_VISIBILITY
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filesystem_error(const string& __what, const path& __p1, const path& __p2,
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error_code __ec)
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: system_error(__ec, __what),
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__storage_(make_shared<_Storage>(__p1, __p2)) {
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__create_what(2);
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}
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_LIBCPP_INLINE_VISIBILITY
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const path& path1() const noexcept { return __storage_->__p1_; }
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_LIBCPP_INLINE_VISIBILITY
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const path& path2() const noexcept { return __storage_->__p2_; }
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filesystem_error(const filesystem_error&) = default;
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~filesystem_error() override; // key function
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_LIBCPP_INLINE_VISIBILITY
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const char* what() const noexcept override {
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return __storage_->__what_.c_str();
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}
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void __create_what(int __num_paths);
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private:
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struct _LIBCPP_HIDDEN _Storage {
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_LIBCPP_INLINE_VISIBILITY
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_Storage(const path& __p1, const path& __p2) : __p1_(__p1), __p2_(__p2) {}
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path __p1_;
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path __p2_;
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string __what_;
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};
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shared_ptr<_Storage> __storage_;
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};
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// TODO(ldionne): We need to pop the pragma and push it again after
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// filesystem_error to work around PR41078.
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_LIBCPP_AVAILABILITY_FILESYSTEM_PUSH
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template <class... _Args>
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_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
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#ifndef _LIBCPP_NO_EXCEPTIONS
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void __throw_filesystem_error(_Args&&... __args) {
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throw filesystem_error(_VSTD::forward<_Args>(__args)...);
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}
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#else
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void __throw_filesystem_error(_Args&&...) {
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_VSTD::abort();
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}
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#endif
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_LIBCPP_AVAILABILITY_FILESYSTEM_POP
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_LIBCPP_END_NAMESPACE_FILESYSTEM
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#endif // _LIBCPP_CXX03_LANG
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#endif // _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
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