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 <__config>
14 #include <__filesystem/path.h>
15 #include <__memory/shared_ptr.h>
16 #include <__system_error/error_code.h>
17 #include <__system_error/system_error.h>
18 #include <__utility/forward.h>
19 #include <__verbose_abort>
20 #include <string>
21
22 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
23 # pragma GCC system_header
24 #endif
25
26 #if _LIBCPP_STD_VER >= 17
27
28 _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
29
30 class _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY _LIBCPP_EXPORTED_FROM_ABI filesystem_error : public system_error {
31 public:
filesystem_error(const string & __what,error_code __ec)32 _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, error_code __ec)
33 : system_error(__ec, __what), __storage_(make_shared<_Storage>(path(), path())) {
34 __create_what(0);
35 }
36
filesystem_error(const string & __what,const path & __p1,error_code __ec)37 _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, const path& __p1, error_code __ec)
38 : system_error(__ec, __what), __storage_(make_shared<_Storage>(__p1, path())) {
39 __create_what(1);
40 }
41
filesystem_error(const string & __what,const path & __p1,const path & __p2,error_code __ec)42 _LIBCPP_HIDE_FROM_ABI filesystem_error(const string& __what, const path& __p1, const path& __p2, error_code __ec)
43 : system_error(__ec, __what), __storage_(make_shared<_Storage>(__p1, __p2)) {
44 __create_what(2);
45 }
46
path1()47 _LIBCPP_HIDE_FROM_ABI const path& path1() const noexcept { return __storage_->__p1_; }
48
path2()49 _LIBCPP_HIDE_FROM_ABI const path& path2() const noexcept { return __storage_->__p2_; }
50
51 _LIBCPP_HIDE_FROM_ABI filesystem_error(const filesystem_error&) = default;
52 ~filesystem_error() override; // key function
53
54 _LIBCPP_HIDE_FROM_ABI_VIRTUAL
what()55 const char* what() const noexcept override { return __storage_->__what_.c_str(); }
56
57 void __create_what(int __num_paths);
58
59 private:
60 struct _LIBCPP_HIDDEN _Storage {
_Storage_Storage61 _LIBCPP_HIDE_FROM_ABI _Storage(const path& __p1, const path& __p2) : __p1_(__p1), __p2_(__p2) {}
62
63 path __p1_;
64 path __p2_;
65 string __what_;
66 };
67 shared_ptr<_Storage> __storage_;
68 };
69
70 # ifndef _LIBCPP_HAS_NO_EXCEPTIONS
71 template <class... _Args>
72 _LIBCPP_NORETURN inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY void
__throw_filesystem_error(_Args &&...__args)73 __throw_filesystem_error(_Args&&... __args) {
74 throw filesystem_error(std::forward<_Args>(__args)...);
75 }
76 # else
77 template <class... _Args>
78 _LIBCPP_NORETURN inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY void
__throw_filesystem_error(_Args &&...)79 __throw_filesystem_error(_Args&&...) {
80 _LIBCPP_VERBOSE_ABORT("filesystem_error was thrown in -fno-exceptions mode");
81 }
82 # endif
83
84 _LIBCPP_END_NAMESPACE_FILESYSTEM
85
86 #endif // _LIBCPP_STD_VER >= 17
87
88 #endif // _LIBCPP___FILESYSTEM_FILESYSTEM_ERROR_H
89