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V1052. Declaring virtual methods in a class marked as 'final' is pointless.
The analyzer has detected a virtual method in a class marked as 'final'.
After refactoring or due to poor class design, you may have a class declared as 'final', while it still contains non-overridden virtual methods.
Such class structure has no practical use, so it is recommended that you check if the class' inheritance logic is intact. In addition, creating such a class results in having to store an extra pointer to the virtual method table and performance drop.
The following example class will trigger the warning:
struct Cl final // <= V1052
{
virtual ~Cl() {}
};
struct BaseClass
{
virtual void foo(int);
};
struct DerivedClass final : BaseClass // <= V1052
{
virtual void bar(float);
};If the virtual method / destructor of the final class overrides the virtual method / destructor of the base class, no warning will be issued:
struct BaseClass
{
virtual void foo();
virtual ~BaseClass();
};
struct DerivedClass final : BaseClass // ok
{
virtual void foo() override;
virtual ~DerivedClass();
};Was this page helpful?
