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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "base/memory/weak_ptr.h" | 5 #include "base/memory/weak_ptr.h" |
| 6 | 6 |
| 7 namespace base { | 7 namespace base { |
| 8 | 8 |
| 9 struct Producer : SupportsWeakPtr<Producer> {}; | 9 struct Producer : SupportsWeakPtr<Producer> {}; |
| 10 struct DerivedProducer : Producer {}; | 10 struct DerivedProducer : Producer {}; |
| 11 struct OtherDerivedProducer : Producer {}; | 11 struct OtherDerivedProducer : Producer {}; |
| 12 struct MultiplyDerivedProducer : Producer, | 12 struct MultiplyDerivedProducer : Producer, |
| 13 SupportsWeakPtr<MultiplyDerivedProducer> {}; | 13 SupportsWeakPtr<MultiplyDerivedProducer> {}; |
| 14 struct Unrelated {}; | 14 struct Unrelated {}; |
| 15 struct DerivedUnrelated : Unrelated {}; | 15 struct DerivedUnrelated : Unrelated {}; |
| 16 | 16 |
| 17 #if defined(NCTEST_AUTO_DOWNCAST) // [r"invalid conversion from"] | 17 #if defined(NCTEST_AUTO_DOWNCAST) // [r"fatal error: cannot initialize a member
subobject of type 'base::DerivedProducer \*' with an lvalue of type 'base::Prod
ucer \*const'"] |
| 18 | 18 |
| 19 void WontCompile() { | 19 void WontCompile() { |
| 20 Producer f; | 20 Producer f; |
| 21 WeakPtr<Producer> ptr = f.AsWeakPtr(); | 21 WeakPtr<Producer> ptr = f.AsWeakPtr(); |
| 22 WeakPtr<DerivedProducer> derived_ptr = ptr; | 22 WeakPtr<DerivedProducer> derived_ptr = ptr; |
| 23 } | 23 } |
| 24 | 24 |
| 25 #elif defined(NCTEST_STATIC_DOWNCAST) // [r"invalid conversion from"] | 25 #elif defined(NCTEST_STATIC_DOWNCAST) // [r"fatal error: cannot initialize a me
mber subobject of type 'base::DerivedProducer \*' with an lvalue of type 'base::
Producer \*const'"] |
| 26 | 26 |
| 27 void WontCompile() { | 27 void WontCompile() { |
| 28 Producer f; | 28 Producer f; |
| 29 WeakPtr<Producer> ptr = f.AsWeakPtr(); | 29 WeakPtr<Producer> ptr = f.AsWeakPtr(); |
| 30 WeakPtr<DerivedProducer> derived_ptr = | 30 WeakPtr<DerivedProducer> derived_ptr = |
| 31 static_cast<WeakPtr<DerivedProducer> >(ptr); | 31 static_cast<WeakPtr<DerivedProducer> >(ptr); |
| 32 } | 32 } |
| 33 | 33 |
| 34 #elif defined(NCTEST_AUTO_REF_DOWNCAST) // [r"invalid initialization of referen
ce"] | 34 #elif defined(NCTEST_AUTO_REF_DOWNCAST) // [r"fatal error: non-const lvalue ref
erence to type 'WeakPtr<base::DerivedProducer>' cannot bind to a value of unrela
ted type 'WeakPtr<base::Producer>'"] |
| 35 | 35 |
| 36 void WontCompile() { | 36 void WontCompile() { |
| 37 Producer f; | 37 Producer f; |
| 38 WeakPtr<Producer> ptr = f.AsWeakPtr(); | 38 WeakPtr<Producer> ptr = f.AsWeakPtr(); |
| 39 WeakPtr<DerivedProducer>& derived_ptr = ptr; | 39 WeakPtr<DerivedProducer>& derived_ptr = ptr; |
| 40 } | 40 } |
| 41 | 41 |
| 42 #elif defined(NCTEST_STATIC_REF_DOWNCAST) // [r"invalid static_cast"] | 42 #elif defined(NCTEST_STATIC_REF_DOWNCAST) // [r"fatal error: non-const lvalue r
eference to type 'WeakPtr<base::DerivedProducer>' cannot bind to a value of unre
lated type 'WeakPtr<base::Producer>'"] |
| 43 | 43 |
| 44 void WontCompile() { | 44 void WontCompile() { |
| 45 Producer f; | 45 Producer f; |
| 46 WeakPtr<Producer> ptr = f.AsWeakPtr(); | 46 WeakPtr<Producer> ptr = f.AsWeakPtr(); |
| 47 WeakPtr<DerivedProducer>& derived_ptr = | 47 WeakPtr<DerivedProducer>& derived_ptr = |
| 48 static_cast<WeakPtr<DerivedProducer>&>(ptr); | 48 static_cast<WeakPtr<DerivedProducer>&>(ptr); |
| 49 } | 49 } |
| 50 | 50 |
| 51 #elif defined(NCTEST_STATIC_ASWEAKPTR_DOWNCAST) // [r"no matching function"] | 51 #elif defined(NCTEST_STATIC_ASWEAKPTR_DOWNCAST) // [r"no matching function"] |
| 52 | 52 |
| 53 void WontCompile() { | 53 void WontCompile() { |
| 54 Producer f; | 54 Producer f; |
| 55 WeakPtr<DerivedProducer> ptr = | 55 WeakPtr<DerivedProducer> ptr = |
| 56 SupportsWeakPtr<Producer>::StaticAsWeakPtr<DerivedProducer>(&f); | 56 SupportsWeakPtr<Producer>::StaticAsWeakPtr<DerivedProducer>(&f); |
| 57 } | 57 } |
| 58 | 58 |
| 59 #elif defined(NCTEST_UNSAFE_HELPER_DOWNCAST) // [r"invalid conversion from"] | 59 #elif defined(NCTEST_UNSAFE_HELPER_DOWNCAST) // [r"fatal error: cannot initiali
ze a member subobject of type 'base::DerivedProducer \*' with an lvalue of type
'base::Producer \*const'"] |
| 60 | 60 |
| 61 void WontCompile() { | 61 void WontCompile() { |
| 62 Producer f; | 62 Producer f; |
| 63 WeakPtr<DerivedProducer> ptr = AsWeakPtr(&f); | 63 WeakPtr<DerivedProducer> ptr = AsWeakPtr(&f); |
| 64 } | 64 } |
| 65 | 65 |
| 66 #elif defined(NCTEST_UNSAFE_INSTANTIATED_HELPER_DOWNCAST) // [r"no matching fun
ction"] | 66 #elif defined(NCTEST_UNSAFE_INSTANTIATED_HELPER_DOWNCAST) // [r"no matching fun
ction"] |
| 67 | 67 |
| 68 void WontCompile() { | 68 void WontCompile() { |
| 69 Producer f; | 69 Producer f; |
| 70 WeakPtr<DerivedProducer> ptr = AsWeakPtr<DerivedProducer>(&f); | 70 WeakPtr<DerivedProducer> ptr = AsWeakPtr<DerivedProducer>(&f); |
| 71 } | 71 } |
| 72 | 72 |
| 73 #elif defined(NCTEST_UNSAFE_WRONG_INSANTIATED_HELPER_DOWNCAST) // [r"invalid co
nversion from"] | 73 #elif defined(NCTEST_UNSAFE_WRONG_INSANTIATED_HELPER_DOWNCAST) // [r"fatal erro
r: cannot initialize a member subobject of type 'base::DerivedProducer \*' with
an lvalue of type 'base::Producer \*const'"] |
| 74 | 74 |
| 75 void WontCompile() { | 75 void WontCompile() { |
| 76 Producer f; | 76 Producer f; |
| 77 WeakPtr<DerivedProducer> ptr = AsWeakPtr<Producer>(&f); | 77 WeakPtr<DerivedProducer> ptr = AsWeakPtr<Producer>(&f); |
| 78 } | 78 } |
| 79 | 79 |
| 80 #elif defined(NCTEST_UNSAFE_HELPER_CAST) // [r"cannot convert"] | 80 #elif defined(NCTEST_UNSAFE_HELPER_CAST) // [r"fatal error: cannot initialize a
member subobject of type 'base::OtherDerivedProducer \*' with an lvalue of type
'base::DerivedProducer \*const'"] |
| 81 | 81 |
| 82 void WontCompile() { | 82 void WontCompile() { |
| 83 DerivedProducer f; | 83 DerivedProducer f; |
| 84 WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr(&f); | 84 WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr(&f); |
| 85 } | 85 } |
| 86 | 86 |
| 87 #elif defined(NCTEST_UNSAFE_INSTANTIATED_HELPER_SIDECAST) // [r"no matching fun
ction"] | 87 #elif defined(NCTEST_UNSAFE_INSTANTIATED_HELPER_SIDECAST) // [r"fatal error: no
matching function for call to 'AsWeakPtr'"] |
| 88 | 88 |
| 89 void WontCompile() { | 89 void WontCompile() { |
| 90 DerivedProducer f; | 90 DerivedProducer f; |
| 91 WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr<OtherDerivedProducer>(&f); | 91 WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr<OtherDerivedProducer>(&f); |
| 92 } | 92 } |
| 93 | 93 |
| 94 #elif defined(NCTEST_UNSAFE_WRONG_INSTANTIATED_HELPER_SIDECAST) // [r"cannot co
nvert"] | 94 #elif defined(NCTEST_UNSAFE_WRONG_INSTANTIATED_HELPER_SIDECAST) // [r"fatal err
or: cannot initialize a member subobject of type 'base::OtherDerivedProducer \*'
with an lvalue of type 'base::DerivedProducer \*const'"] |
| 95 | 95 |
| 96 void WontCompile() { | 96 void WontCompile() { |
| 97 DerivedProducer f; | 97 DerivedProducer f; |
| 98 WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr<DerivedProducer>(&f); | 98 WeakPtr<OtherDerivedProducer> ptr = AsWeakPtr<DerivedProducer>(&f); |
| 99 } | 99 } |
| 100 | 100 |
| 101 #elif defined(NCTEST_UNRELATED_HELPER) // [r"cannot convert"] | 101 #elif defined(NCTEST_UNRELATED_HELPER) // [r"fatal error: cannot initialize a m
ember subobject of type 'base::Unrelated \*' with an lvalue of type 'base::Deriv
edProducer \*const'"] |
| 102 | 102 |
| 103 void WontCompile() { | 103 void WontCompile() { |
| 104 DerivedProducer f; | 104 DerivedProducer f; |
| 105 WeakPtr<Unrelated> ptr = AsWeakPtr(&f); | 105 WeakPtr<Unrelated> ptr = AsWeakPtr(&f); |
| 106 } | 106 } |
| 107 | 107 |
| 108 #elif defined(NCTEST_UNRELATED_INSTANTIATED_HELPER) // [r"no matching function"
] | 108 #elif defined(NCTEST_UNRELATED_INSTANTIATED_HELPER) // [r"no matching function"
] |
| 109 | 109 |
| 110 void WontCompile() { | 110 void WontCompile() { |
| 111 DerivedProducer f; | 111 DerivedProducer f; |
| 112 WeakPtr<Unrelated> ptr = AsWeakPtr<Unrelated>(&f); | 112 WeakPtr<Unrelated> ptr = AsWeakPtr<Unrelated>(&f); |
| 113 } | 113 } |
| 114 | 114 |
| 115 #elif defined(NCTEST_COMPLETELY_UNRELATED_HELPER) // [r"size of array is negati
ve"] | 115 #elif defined(NCTEST_COMPLETELY_UNRELATED_HELPER) // [r"fatal error: static_ass
ert failed \"AsWeakPtr_argument_inherits_from_SupportsWeakPtr\""] |
| 116 | 116 |
| 117 void WontCompile() { | 117 void WontCompile() { |
| 118 Unrelated f; | 118 Unrelated f; |
| 119 WeakPtr<Unrelated> ptr = AsWeakPtr(&f); | 119 WeakPtr<Unrelated> ptr = AsWeakPtr(&f); |
| 120 } | 120 } |
| 121 | 121 |
| 122 #elif defined(NCTEST_DERIVED_COMPLETELY_UNRELATED_HELPER) // [r"size of array i
s negative"] | 122 #elif defined(NCTEST_DERIVED_COMPLETELY_UNRELATED_HELPER) // [r"fatal error: st
atic_assert failed \"AsWeakPtr_argument_inherits_from_SupportsWeakPtr\""] |
| 123 | 123 |
| 124 void WontCompile() { | 124 void WontCompile() { |
| 125 DerivedUnrelated f; | 125 DerivedUnrelated f; |
| 126 WeakPtr<Unrelated> ptr = AsWeakPtr(&f); | 126 WeakPtr<Unrelated> ptr = AsWeakPtr(&f); |
| 127 } | 127 } |
| 128 | 128 |
| 129 #elif defined(NCTEST_AMBIGUOUS_ANCESTORS) // [r"ambiguous base"] | 129 #elif defined(NCTEST_AMBIGUOUS_ANCESTORS) // [r"fatal error: ambiguous conversi
on from derived class 'base::MultiplyDerivedProducer' to base class 'base::inter
nal::SupportsWeakPtrBase':"] |
| 130 | 130 |
| 131 void WontCompile() { | 131 void WontCompile() { |
| 132 MultiplyDerivedProducer f; | 132 MultiplyDerivedProducer f; |
| 133 WeakPtr<MultiplyDerivedProducer> ptr = AsWeakPtr(&f); | 133 WeakPtr<MultiplyDerivedProducer> ptr = AsWeakPtr(&f); |
| 134 } | 134 } |
| 135 | 135 |
| 136 #endif | 136 #endif |
| 137 | 137 |
| 138 } | 138 } |
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