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

1	// RUN: %check_clang_tidy %s cppcoreguidelines-special-member-functions %t -- -config="{CheckOptions: {cppcoreguidelines-special-member-functions.AllowMissingMoveFunctions: true, cppcoreguidelines-special-member-functions.AllowSoleDefaultDtor: true, cppcoreguidelines-special-member-functions.AllowImplicitlyDeletedCopyOrMove: true}}" --
2
3	// Don't warn on destructors without definitions, they might be defaulted in another TU.
4	class DeclaresDestructor {
5	~DeclaresDestructor();
6	};
7
8	class DefinesDestructor {
9	~DefinesDestructor();
10	};
11	DefinesDestructor::~DefinesDestructor() {}
12	// CHECK-MESSAGES: [[@LINE-4]]:7: warning: class 'DefinesDestructor' defines a non-default destructor but does not define a copy constructor or a copy assignment operator [cppcoreguidelines-special-member-functions]
13
14	class DefinesDefaultedDestructor {
15	~DefinesDefaultedDestructor() = default;
16	};
17
18	class DefinesDefaultedDestructorOutside {
19	~DefinesDefaultedDestructorOutside();
20	};
21
22	DefinesDefaultedDestructorOutside::~DefinesDefaultedDestructorOutside() = default;
23
24	class DefinesCopyConstructor {
25	DefinesCopyConstructor(const DefinesCopyConstructor &);
26	};
27	// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesCopyConstructor' defines a copy constructor but does not define a destructor or a copy assignment operator [cppcoreguidelines-special-member-functions]
28
29	class DefinesCopyAssignment {
30	DefinesCopyAssignment &operator=(const DefinesCopyAssignment &);
31	};
32	// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesCopyAssignment' defines a copy assignment operator but does not define a destructor or a copy constructor [cppcoreguidelines-special-member-functions]
33
34	class DefinesMoveConstructor {
35	DefinesMoveConstructor(DefinesMoveConstructor &&);
36	};
37	// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesMoveConstructor' defines a move constructor but does not define a destructor or a move assignment operator [cppcoreguidelines-special-member-functions]
38
39	class DefinesMoveAssignment {
40	DefinesMoveAssignment &operator=(DefinesMoveAssignment &&);
41	};
42	// CHECK-MESSAGES: [[@LINE-3]]:7: warning: class 'DefinesMoveAssignment' defines a move assignment operator but does not define a destructor or a move constructor [cppcoreguidelines-special-member-functions]
43
44	class DefinesNothing {
45	};
46
47	class DefinesEverything {
48	DefinesEverything(const DefinesEverything &);
49	DefinesEverything &operator=(const DefinesEverything &);
50	DefinesEverything(DefinesEverything &&);
51	DefinesEverything &operator=(DefinesEverything &&);
52	~DefinesEverything();
53	};
54
55	class DeletesEverything {
56	DeletesEverything(const DeletesEverything &) = delete;
57	DeletesEverything &operator=(const DeletesEverything &) = delete;
58	DeletesEverything(DeletesEverything &&) = delete;
59	DeletesEverything &operator=(DeletesEverything &&) = delete;
60	~DeletesEverything() = delete;
61	};
62
63	class DeletesCopyDefaultsMove {
64	DeletesCopyDefaultsMove(const DeletesCopyDefaultsMove &) = delete;
65	DeletesCopyDefaultsMove &operator=(const DeletesCopyDefaultsMove &) = delete;
66	DeletesCopyDefaultsMove(DeletesCopyDefaultsMove &&) = default;
67	DeletesCopyDefaultsMove &operator=(DeletesCopyDefaultsMove &&) = default;
68	~DeletesCopyDefaultsMove() = default;
69	};
70
71	template <typename T>
72	struct TemplateClass {
73	TemplateClass() = default;
74	TemplateClass(const TemplateClass &);
75	TemplateClass &operator=(const TemplateClass &);
76	TemplateClass(TemplateClass &&);
77	TemplateClass &operator=(TemplateClass &&);
78	~TemplateClass();
79	};
80
81	// Multiple instantiations of a class template will trigger multiple matches for defined special members.
82	// This should not cause problems.
83	TemplateClass<int> InstantiationWithInt;
84	TemplateClass<double> InstantiationWithDouble;
85
86	struct NoCopy
87	{
88	NoCopy() = default;
89	~NoCopy() = default;
90
91	NoCopy(const NoCopy&) = delete;
92	NoCopy(NoCopy&&) = delete;
93
94	NoCopy& operator=(const NoCopy&) = delete;
95	NoCopy& operator=(NoCopy&&) = delete;
96	};
97
98	// CHECK-MESSAGES: [[@LINE+1]]:8: warning: class 'NonCopyable' defines a copy constructor but does not define a destructor or a copy assignment operator [cppcoreguidelines-special-member-functions]
99	struct NonCopyable : NoCopy
100	{
101	NonCopyable() = default;
102	NonCopyable(const NonCopyable&) = delete;
103	};
104

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