1// RUN: %check_clang_tidy %s cppcoreguidelines-special-member-functions %t
2
3class DefinesDestructor {
4 ~DefinesDestructor();
5};
6// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesDestructor' defines a destructor but does not define a copy constructor, a copy assignment operator, a move constructor or a move assignment operator [cppcoreguidelines-special-member-functions]
7
8class DefinesDefaultedDestructor {
9 ~DefinesDefaultedDestructor() = default;
10};
11// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesDefaultedDestructor' defines a default destructor but does not define a copy constructor, a copy assignment operator, a move constructor or a move assignment operator [cppcoreguidelines-special-member-functions]
12
13class DefinesCopyConstructor {
14 DefinesCopyConstructor(const DefinesCopyConstructor &);
15};
16// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesCopyConstructor' defines a copy constructor but does not define a destructor, a copy assignment operator, a move constructor or a move assignment operator [cppcoreguidelines-special-member-functions]
17
18class DefinesCopyAssignment {
19 DefinesCopyAssignment &operator=(const DefinesCopyAssignment &);
20};
21// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesCopyAssignment' defines a copy assignment operator but does not define a destructor, a copy constructor, a move constructor or a move assignment operator [cppcoreguidelines-special-member-functions]
22
23class DefinesMoveConstructor {
24 DefinesMoveConstructor(DefinesMoveConstructor &&);
25};
26// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesMoveConstructor' defines a move constructor but does not define a destructor, a copy constructor, a copy assignment operator or a move assignment operator [cppcoreguidelines-special-member-functions]
27
28class DefinesMoveAssignment {
29 DefinesMoveAssignment &operator=(DefinesMoveAssignment &&);
30};
31// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesMoveAssignment' defines a move assignment operator but does not define a destructor, a copy constructor, a copy assignment operator or a move constructor [cppcoreguidelines-special-member-functions]
32class DefinesNothing {
33};
34
35class DefinesEverything {
36 DefinesEverything(const DefinesEverything &);
37 DefinesEverything &operator=(const DefinesEverything &);
38 DefinesEverything(DefinesEverything &&);
39 DefinesEverything &operator=(DefinesEverything &&);
40 ~DefinesEverything();
41};
42
43class DeletesEverything {
44 DeletesEverything(const DeletesEverything &) = delete;
45 DeletesEverything &operator=(const DeletesEverything &) = delete;
46 DeletesEverything(DeletesEverything &&) = delete;
47 DeletesEverything &operator=(DeletesEverything &&) = delete;
48 ~DeletesEverything() = delete;
49};
50
51class DeletesCopyDefaultsMove {
52 DeletesCopyDefaultsMove(const DeletesCopyDefaultsMove &) = delete;
53 DeletesCopyDefaultsMove &operator=(const DeletesCopyDefaultsMove &) = delete;
54 DeletesCopyDefaultsMove(DeletesCopyDefaultsMove &&) = default;
55 DeletesCopyDefaultsMove &operator=(DeletesCopyDefaultsMove &&) = default;
56 ~DeletesCopyDefaultsMove() = default;
57};
58
59template <typename T>
60struct TemplateClass {
61 TemplateClass() = default;
62 TemplateClass(const TemplateClass &);
63 TemplateClass &operator=(const TemplateClass &);
64 TemplateClass(TemplateClass &&);
65 TemplateClass &operator=(TemplateClass &&);
66 ~TemplateClass();
67};
68
69// Multiple instantiations of a class template will trigger multiple matches for defined special members.
70// This should not cause problems.
71TemplateClass<int> InstantiationWithInt;
72TemplateClass<double> InstantiationWithDouble;
73
74#define DEFINE_DESTRUCTOR_ONLY(ClassName) \
75 class ClassName { \
76 ~ClassName(); \
77 };
78
79#define DEFINE_COPY_CTOR_ONLY(ClassName) \
80 class ClassName { \
81 ClassName(const ClassName &); \
82 };
83
84#define DEFINE_CLASS_WITH_DTOR(ClassName) \
85 class ClassName { \
86 ~ClassName(); \
87 };
88
89DEFINE_DESTRUCTOR_ONLY(MacroDefinedClass1)
90DEFINE_COPY_CTOR_ONLY(MacroDefinedClass2)
91DEFINE_CLASS_WITH_DTOR(MacroDefinedClass3)
92
93// Test partial macro expansion
94#define CLASS_NAME MacroNamedClass
95class CLASS_NAME {
96 ~MacroNamedClass();
97};
98// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'MacroNamedClass' defines a destructor but does not define a copy constructor, a copy assignment operator, a move constructor or a move assignment operator
99

source code of clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/special-member-functions.cpp