41 lines · cpp
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.6class PtrField {7public: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 13private:14 int *p;15};16 17// With the option, check catches classes with trivial fields.18class TrivialFields {19public: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 25private: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.34class ClassWithoutFields {35public: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