| 1 | // RUN: %check_clang_tidy %s bugprone-unhandled-self-assignment %t -- \ |
|---|
| 2 | // RUN: -config="{CheckOptions: \ |
|---|
| 3 | // RUN: {bugprone-unhandled-self-assignment.WarnOnlyIfThisHasSuspiciousField: false}}" |
|---|
| 4 | |
|---|
| 5 | // Classes with pointer field are still caught. |
|---|
| 6 | class PtrField { |
|---|
| 7 | public: |
|---|
| 8 | PtrField &operator=(const PtrField &object) { |
|---|
| 9 | // CHECK-MESSAGES: [[@LINE-1]]:13: warning: operator=() does not handle self-assignment properly [bugprone-unhandled-self-assignment] |
|---|
| 10 | return *this; |
|---|
| 11 | } |
|---|
| 12 | |
|---|
| 13 | private: |
|---|
| 14 | int *p; |
|---|
| 15 | }; |
|---|
| 16 | |
|---|
| 17 | // With the option, check catches classes with trivial fields. |
|---|
| 18 | class TrivialFields { |
|---|
| 19 | public: |
|---|
| 20 | TrivialFields &operator=(const TrivialFields &object) { |
|---|
| 21 | // CHECK-MESSAGES: [[@LINE-1]]:18: warning: operator=() does not handle self-assignment properly [bugprone-unhandled-self-assignment] |
|---|
| 22 | return *this; |
|---|
| 23 | } |
|---|
| 24 | |
|---|
| 25 | private: |
|---|
| 26 | int m; |
|---|
| 27 | float f; |
|---|
| 28 | double d; |
|---|
| 29 | bool b; |
|---|
| 30 | }; |
|---|
| 31 | |
|---|
| 32 | // The check warns also when there is no field at all. |
|---|
| 33 | // In this case, user-defined copy assignment operator is useless anyway. |
|---|
| 34 | class ClassWithoutFields { |
|---|
| 35 | public: |
|---|
| 36 | ClassWithoutFields &operator=(const ClassWithoutFields &object) { |
|---|
| 37 | // CHECK-MESSAGES: [[@LINE-1]]:23: warning: operator=() does not handle self-assignment properly [bugprone-unhandled-self-assignment] |
|---|
| 38 | return *this; |
|---|
| 39 | } |
|---|
| 40 | }; |
|---|
| 41 | |
|---|
