Howard Hinnant | 830713c | 2012-01-31 23:52:20 +0000 | [diff] [blame] | 1 | //===---------------------- catch_class_04.cpp ----------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | /* |
| 11 | This test checks that adjustedPtr is correct as there exist offsets in this |
| 12 | object for the various subobjects, all of which have a unique id_ to |
| 13 | check against. It also checks that virtual bases work properly |
| 14 | */ |
| 15 | |
Asiri Rathnayake | 4174e8b | 2016-05-31 12:01:32 +0000 | [diff] [blame] | 16 | // UNSUPPORTED: libcxxabi-no-exceptions |
| 17 | |
Howard Hinnant | 830713c | 2012-01-31 23:52:20 +0000 | [diff] [blame] | 18 | #include <exception> |
| 19 | #include <stdlib.h> |
| 20 | #include <assert.h> |
| 21 | |
Eric Fiselier | df448d8 | 2016-06-15 19:07:19 +0000 | [diff] [blame] | 22 | // Clang emits warnings about exceptions of type 'Child' being caught by |
| 23 | // an earlier handler of type 'Base'. Congrats clang, you've just |
| 24 | // diagnosed the behavior under test. |
| 25 | #if defined(__clang__) |
| 26 | #pragma clang diagnostic ignored "-Wexceptions" |
| 27 | #endif |
| 28 | |
Howard Hinnant | 830713c | 2012-01-31 23:52:20 +0000 | [diff] [blame] | 29 | struct B |
| 30 | { |
| 31 | static int count; |
| 32 | int id_; |
| 33 | explicit B(int id) : id_(id) {count++;} |
| 34 | B(const B& a) : id_(a.id_) {count++;} |
| 35 | ~B() {count--;} |
| 36 | }; |
| 37 | |
| 38 | int B::count = 0; |
| 39 | |
| 40 | struct C1 |
| 41 | : virtual B |
| 42 | { |
| 43 | static int count; |
| 44 | int id_; |
| 45 | explicit C1(int id) : B(id-2), id_(id) {count++;} |
| 46 | C1(const C1& a) : B(a.id_-2), id_(a.id_) {count++;} |
| 47 | ~C1() {count--;} |
| 48 | }; |
| 49 | |
| 50 | int C1::count = 0; |
| 51 | |
| 52 | struct C2 |
| 53 | : virtual private B |
| 54 | { |
| 55 | static int count; |
| 56 | int id_; |
| 57 | explicit C2(int id) : B(id-2), id_(id) {count++;} |
| 58 | C2(const C2& a) : B(a.id_-2), id_(a.id_) {count++;} |
| 59 | ~C2() {count--;} |
| 60 | }; |
| 61 | |
| 62 | int C2::count = 0; |
| 63 | |
| 64 | struct A |
| 65 | : C1, C2 |
| 66 | { |
| 67 | static int count; |
| 68 | int id_; |
Eric Fiselier | ef83bd1 | 2016-06-15 19:33:01 +0000 | [diff] [blame] | 69 | explicit A(int id) : B(id+3), C1(id-1), C2(id-2), id_(id) {count++;} |
| 70 | A(const A& a) : B(a.id_+3), C1(a.id_-1), C2(a.id_-2), id_(a.id_) {count++;} |
Howard Hinnant | 830713c | 2012-01-31 23:52:20 +0000 | [diff] [blame] | 71 | ~A() {count--;} |
| 72 | }; |
| 73 | |
| 74 | int A::count = 0; |
| 75 | |
| 76 | void f1() |
| 77 | { |
| 78 | assert(A::count == 0); |
| 79 | assert(C1::count == 0); |
| 80 | assert(C2::count == 0); |
| 81 | assert(B::count == 0); |
| 82 | A a(5); |
| 83 | assert(A::count == 1); |
| 84 | assert(C1::count == 1); |
| 85 | assert(C2::count == 1); |
| 86 | assert(B::count == 1); |
| 87 | |
| 88 | assert(a.id_ == 5); |
| 89 | assert(static_cast<C1&>(a).id_ == 4); |
| 90 | assert(static_cast<C2&>(a).id_ == 3); |
| 91 | assert(static_cast<B&>(a).id_ == 8); |
| 92 | throw a; |
| 93 | assert(false); |
| 94 | } |
| 95 | |
| 96 | void f2() |
| 97 | { |
| 98 | try |
| 99 | { |
| 100 | assert(A::count == 0); |
| 101 | assert(C1::count == 0); |
| 102 | assert(C2::count == 0); |
| 103 | assert(B::count == 0); |
| 104 | f1(); |
| 105 | assert(false); |
| 106 | } |
| 107 | catch (const A& a) // can catch A |
| 108 | { |
| 109 | assert(a.id_ == 5); |
| 110 | assert(static_cast<const C1&>(a).id_ == 4); |
| 111 | assert(static_cast<const C2&>(a).id_ == 3); |
| 112 | assert(static_cast<const B&>(a).id_ == 8); |
| 113 | throw; |
| 114 | } |
| 115 | catch (const C1&) |
| 116 | { |
| 117 | assert(false); |
| 118 | } |
| 119 | catch (const C2&) |
| 120 | { |
| 121 | assert(false); |
| 122 | } |
| 123 | catch (const B&) |
| 124 | { |
| 125 | assert(false); |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | void f3() |
| 130 | { |
| 131 | try |
| 132 | { |
| 133 | assert(A::count == 0); |
| 134 | assert(C1::count == 0); |
| 135 | assert(C2::count == 0); |
| 136 | assert(B::count == 0); |
| 137 | f2(); |
| 138 | assert(false); |
| 139 | } |
| 140 | catch (const B& a) // can catch B |
| 141 | { |
| 142 | assert(static_cast<const B&>(a).id_ == 8); |
| 143 | throw; |
| 144 | } |
| 145 | catch (const C1& c1) |
| 146 | { |
| 147 | assert(false); |
| 148 | } |
| 149 | catch (const C2&) |
| 150 | { |
| 151 | assert(false); |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | void f4() |
| 156 | { |
| 157 | try |
| 158 | { |
| 159 | assert(A::count == 0); |
| 160 | assert(C1::count == 0); |
| 161 | assert(C2::count == 0); |
| 162 | assert(B::count == 0); |
| 163 | f3(); |
| 164 | assert(false); |
| 165 | } |
| 166 | catch (const C2& c2) // can catch C2 |
| 167 | { |
| 168 | assert(c2.id_ == 3); |
| 169 | throw; |
| 170 | } |
| 171 | catch (const B& a) // can not catch B (ambiguous base) |
| 172 | { |
| 173 | assert(false); |
| 174 | } |
| 175 | catch (const C1&) |
| 176 | { |
| 177 | assert(false); |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | void f5() |
| 182 | { |
| 183 | try |
| 184 | { |
| 185 | assert(A::count == 0); |
| 186 | assert(C1::count == 0); |
| 187 | assert(C2::count == 0); |
| 188 | assert(B::count == 0); |
| 189 | f4(); |
| 190 | assert(false); |
| 191 | } |
| 192 | catch (const C1& c1) // can catch C1 |
| 193 | { |
| 194 | assert(c1.id_ == 4); |
| 195 | assert(static_cast<const B&>(c1).id_ == 8); |
| 196 | throw; |
| 197 | } |
| 198 | catch (const B& a) |
| 199 | { |
| 200 | assert(false); |
| 201 | } |
| 202 | catch (const C2&) |
| 203 | { |
| 204 | assert(false); |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | int main() |
| 209 | { |
| 210 | try |
| 211 | { |
| 212 | f5(); |
| 213 | assert(false); |
| 214 | } |
| 215 | catch (...) |
| 216 | { |
| 217 | } |
| 218 | assert(A::count == 0); |
| 219 | assert(C1::count == 0); |
| 220 | assert(C2::count == 0); |
| 221 | assert(B::count == 0); |
| 222 | } |