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99dee823 | 1 | // Copyright (C) 1994-2021 Free Software Foundation, Inc. |
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2 | // |
3 | // This file is part of GCC. | |
4 | // | |
5 | // GCC is free software; you can redistribute it and/or modify | |
6 | // it under the terms of the GNU General Public License as published by | |
748086b7 | 7 | // the Free Software Foundation; either version 3, or (at your option) |
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8 | // any later version. |
9 | ||
10 | // GCC is distributed in the hope that it will be useful, | |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | // GNU General Public License for more details. | |
14 | ||
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15 | // Under Section 7 of GPL version 3, you are granted additional |
16 | // permissions described in the GCC Runtime Library Exception, version | |
17 | // 3.1, as published by the Free Software Foundation. | |
18 | ||
19 | // You should have received a copy of the GNU General Public License and | |
20 | // a copy of the GCC Runtime Library Exception along with this program; | |
21 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
22 | // <http://www.gnu.org/licenses/>. | |
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23 | |
24 | #include "tinfo.h" | |
25 | ||
26 | namespace __cxxabiv1 { | |
27 | ||
28 | __si_class_type_info:: | |
29 | ~__si_class_type_info () | |
30 | {} | |
31 | ||
32 | __class_type_info::__sub_kind __si_class_type_info:: | |
33 | __do_find_public_src (ptrdiff_t src2dst, | |
34 | const void *obj_ptr, | |
35 | const __class_type_info *src_type, | |
36 | const void *src_ptr) const | |
37 | { | |
38 | if (src_ptr == obj_ptr && *this == *src_type) | |
39 | return __contained_public; | |
40 | return __base_type->__do_find_public_src (src2dst, obj_ptr, src_type, src_ptr); | |
41 | } | |
42 | ||
43 | bool __si_class_type_info:: | |
44 | __do_dyncast (ptrdiff_t src2dst, | |
45 | __sub_kind access_path, | |
46 | const __class_type_info *dst_type, | |
47 | const void *obj_ptr, | |
48 | const __class_type_info *src_type, | |
49 | const void *src_ptr, | |
50 | __dyncast_result &__restrict result) const | |
51 | { | |
52 | if (*this == *dst_type) | |
53 | { | |
54 | result.dst_ptr = obj_ptr; | |
55 | result.whole2dst = access_path; | |
56 | if (src2dst >= 0) | |
57 | result.dst2src = adjust_pointer <void> (obj_ptr, src2dst) == src_ptr | |
58 | ? __contained_public : __not_contained; | |
59 | else if (src2dst == -2) | |
60 | result.dst2src = __not_contained; | |
61 | return false; | |
62 | } | |
63 | if (obj_ptr == src_ptr && *this == *src_type) | |
64 | { | |
65 | // The src object we started from. Indicate how we are accessible from | |
66 | // the most derived object. | |
67 | result.whole2src = access_path; | |
68 | return false; | |
69 | } | |
70 | return __base_type->__do_dyncast (src2dst, access_path, dst_type, obj_ptr, | |
71 | src_type, src_ptr, result); | |
72 | } | |
73 | ||
74 | bool __si_class_type_info:: | |
75 | __do_upcast (const __class_type_info *dst, const void *obj_ptr, | |
76 | __upcast_result &__restrict result) const | |
77 | { | |
78 | if (__class_type_info::__do_upcast (dst, obj_ptr, result)) | |
79 | return true; | |
80 | ||
81 | return __base_type->__do_upcast (dst, obj_ptr, result); | |
82 | } | |
83 | ||
84 | } |