1 // -*- C++ -*-
2 //===----------------------------------------------------------------------===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9
10 #ifndef _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
11 #define _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
12
13 #include <__availability>
14 #include <__config>
15 #include <__filesystem/path.h>
16 #include <__memory/shared_ptr.h>
17 #include <__system_error/error_code.h>
18 #include <__system_error/system_error.h>
19 #include <__utility/forward.h>
20 #include <__verbose_abort>
21 #include <string>
22
23 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
24 # pragma GCC system_header
25 #endif
26
27 #if _LIBCPP_STD_VER >= 17
28
29 _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
30
31 class _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY _LIBCPP_EXPORTED_FROM_ABI filesystem_error : public system_error {
32 public:
filesystem_error(const string & __what,error_code __ec)33 _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, error_code __ec)
34 : system_error(__ec, __what), __storage_(make_shared<_Storage>(path(), path())) {
35 __create_what(0);
36 }
37
filesystem_error(const string & __what,const path & __p1,error_code __ec)38 _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, const path& __p1, error_code __ec)
39 : system_error(__ec, __what), __storage_(make_shared<_Storage>(__p1, path())) {
40 __create_what(1);
41 }
42
filesystem_error(const string & __what,const path & __p1,const path & __p2,error_code __ec)43 _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, const path& __p1, const path& __p2, error_code __ec)
44 : system_error(__ec, __what), __storage_(make_shared<_Storage>(__p1, __p2)) {
45 __create_what(2);
46 }
47
path1()48 _LIBCPP_HIDE_FROM_ABI const path& path1() const noexcept { return __storage_->__p1_; }
49
path2()50 _LIBCPP_HIDE_FROM_ABI const path& path2() const noexcept { return __storage_->__p2_; }
51
52 _LIBCPP_HIDE_FROM_ABI filesystem_error(const filesystem_error&) = default;
53 ~filesystem_error() override; // key function
54
55 _LIBCPP_HIDE_FROM_ABI_VIRTUAL
what()56 const char* what() const noexcept override { return __storage_->__what_.c_str(); }
57
58 void __create_what(int __num_paths);
59
60 private:
61 struct _LIBCPP_HIDDEN _Storage {
_Storage_Storage62 _LIBCPP_HIDE_FROM_ABI _Storage(const path& __p1, const path& __p2) : __p1_(__p1), __p2_(__p2) {}
63
64 path __p1_;
65 path __p2_;
66 string __what_;
67 };
68 shared_ptr<_Storage> __storage_;
69 };
70
71 # ifndef _LIBCPP_HAS_NO_EXCEPTIONS
72 template <class... _Args>
73 _LIBCPP_NORETURN inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY void
__throw_filesystem_error(_Args &&...__args)74 __throw_filesystem_error(_Args&&... __args) {
75 throw filesystem_error(std::forward<_Args>(__args)...);
76 }
77 # else
78 template <class... _Args>
79 _LIBCPP_NORETURN inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY void
__throw_filesystem_error(_Args &&...)80 __throw_filesystem_error(_Args&&...) {
81 _LIBCPP_VERBOSE_ABORT("filesystem_error was thrown in -fno-exceptions mode");
82 }
83 # endif
84
85 _LIBCPP_END_NAMESPACE_FILESYSTEM
86
87 #endif // _LIBCPP_STD_VER >= 17
88
89 #endif // _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
90