forked from OSchip/llvm-project
180 lines
6.1 KiB
C++
180 lines
6.1 KiB
C++
// RUN: %check_clang_tidy %s bugprone-parent-virtual-call %t
|
|
|
|
extern int foo();
|
|
|
|
class A {
|
|
public:
|
|
A() = default;
|
|
virtual ~A() = default;
|
|
|
|
virtual int virt_1() { return foo() + 1; }
|
|
virtual int virt_2() { return foo() + 2; }
|
|
|
|
int non_virt() { return foo() + 3; }
|
|
static int stat() { return foo() + 4; }
|
|
};
|
|
|
|
class B : public A {
|
|
public:
|
|
B() = default;
|
|
|
|
// Nothing to fix: calls to direct parent.
|
|
int virt_1() override { return A::virt_1() + 3; }
|
|
int virt_2() override { return A::virt_2() + 4; }
|
|
};
|
|
|
|
class C : public B {
|
|
public:
|
|
int virt_1() override { return A::virt_1() + B::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A::virt_1' refers to a member overridden in subclass; did you mean 'B'? [bugprone-parent-virtual-call]
|
|
// CHECK-FIXES: int virt_1() override { return B::virt_1() + B::virt_1(); }
|
|
int virt_2() override { return A::virt_1() + B::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A::virt_1' {{.*}}; did you mean 'B'? {{.*}}
|
|
// CHECK-FIXES: int virt_2() override { return B::virt_1() + B::virt_1(); }
|
|
|
|
// Test that non-virtual and static methods are not affected by this cherker.
|
|
int method_c() { return A::stat() + A::non_virt(); }
|
|
};
|
|
|
|
// Check aliased type names
|
|
using A1 = A;
|
|
typedef A A2;
|
|
#define A3 A
|
|
|
|
class C2 : public B {
|
|
public:
|
|
int virt_1() override { return A1::virt_1() + A2::virt_1() + A3::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A1::virt_1' {{.*}}; did you mean 'B'? {{.*}}
|
|
// CHECK-MESSAGES: :[[@LINE-2]]:49: warning: qualified name 'A2::virt_1' {{.*}}; did you mean 'B'? {{.*}}
|
|
// CHECK-MESSAGES: :[[@LINE-3]]:64: warning: qualified name 'A3::virt_1' {{.*}}; did you mean 'B'? {{.*}}
|
|
// CHECK-FIXES: int virt_1() override { return B::virt_1() + B::virt_1() + B::virt_1(); }
|
|
};
|
|
|
|
// Test that the check affects grand-grand..-parent calls too.
|
|
class D : public C {
|
|
public:
|
|
int virt_1() override { return A::virt_1() + B::virt_1() + D::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A::virt_1' {{.*}}; did you mean 'C'? {{.*}}
|
|
// CHECK-MESSAGES: :[[@LINE-2]]:48: warning: qualified name 'B::virt_1' {{.*}}; did you mean 'C'? {{.*}}
|
|
// CHECK-FIXES: int virt_1() override { return C::virt_1() + C::virt_1() + D::virt_1(); }
|
|
int virt_2() override { return A::virt_1() + B::virt_1() + D::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A::virt_1' {{.*}}; did you mean 'C'? {{.*}}
|
|
// CHECK-MESSAGES: :[[@LINE-2]]:48: warning: qualified name 'B::virt_1' {{.*}}; did you mean 'C'? {{.*}}
|
|
// CHECK-FIXES: int virt_2() override { return C::virt_1() + C::virt_1() + D::virt_1(); }
|
|
};
|
|
|
|
// Test classes in namespaces.
|
|
namespace {
|
|
class BN : public A {
|
|
public:
|
|
int virt_1() override { return A::virt_1() + 3; }
|
|
int virt_2() override { return A::virt_2() + 4; }
|
|
};
|
|
} // namespace
|
|
|
|
namespace N1 {
|
|
class A {
|
|
public:
|
|
A() = default;
|
|
virtual int virt_1() { return foo() + 1; }
|
|
virtual int virt_2() { return foo() + 2; }
|
|
};
|
|
} // namespace N1
|
|
|
|
namespace N2 {
|
|
class BN : public N1::A {
|
|
public:
|
|
int virt_1() override { return A::virt_1() + 3; }
|
|
int virt_2() override { return A::virt_2() + 4; }
|
|
};
|
|
} // namespace N2
|
|
|
|
class CN : public BN {
|
|
public:
|
|
int virt_1() override { return A::virt_1() + BN::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A::virt_1' {{.*}}; did you mean 'BN'? {{.*}}
|
|
// CHECK-FIXES: int virt_1() override { return BN::virt_1() + BN::virt_1(); }
|
|
int virt_2() override { return A::virt_1() + BN::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A::virt_1' {{.*}}; did you mean 'BN'? {{.*}}
|
|
// CHECK-FIXES: int virt_2() override { return BN::virt_1() + BN::virt_1(); }
|
|
};
|
|
|
|
class CNN : public N2::BN {
|
|
public:
|
|
int virt_1() override { return N1::A::virt_1() + N2::BN::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'N1::A::virt_1' {{.*}}; did you mean 'N2::BN'? {{.*}}
|
|
// CHECK-FIXES: int virt_1() override { return N2::BN::virt_1() + N2::BN::virt_1(); }
|
|
int virt_2() override { return N1::A::virt_1() + N2::BN::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'N1::A::virt_1' {{.*}}; did you mean 'N2::BN'? {{.*}}
|
|
// CHECK-FIXES: int virt_2() override { return N2::BN::virt_1() + N2::BN::virt_1(); }
|
|
};
|
|
|
|
// Test multiple inheritance fixes
|
|
class AA {
|
|
public:
|
|
AA() = default;
|
|
virtual ~AA() = default;
|
|
|
|
virtual int virt_1() { return foo() + 1; }
|
|
virtual int virt_2() { return foo() + 2; }
|
|
|
|
int non_virt() { return foo() + 3; }
|
|
static int stat() { return foo() + 4; }
|
|
};
|
|
|
|
class BB_1 : virtual public AA {
|
|
public:
|
|
BB_1() = default;
|
|
|
|
// Nothing to fix: calls to parent.
|
|
int virt_1() override { return AA::virt_1() + 3; }
|
|
int virt_2() override { return AA::virt_2() + 4; }
|
|
};
|
|
|
|
class BB_2 : virtual public AA {
|
|
public:
|
|
BB_2() = default;
|
|
int virt_1() override { return AA::virt_1() + 3; }
|
|
};
|
|
|
|
class CC : public BB_1, public BB_2 {
|
|
public:
|
|
int virt_1() override { return AA::virt_1() + 3; }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'AA::virt_1' refers to a member overridden in subclasses; did you mean 'BB_1' or 'BB_2'? {{.*}}
|
|
// No fix available due to multiple choice of parent class.
|
|
};
|
|
|
|
// Test that virtual method is not diagnosed as not overridden in parent.
|
|
class BI : public A {
|
|
public:
|
|
BI() = default;
|
|
};
|
|
|
|
class CI : BI {
|
|
int virt_1() override { return A::virt_1(); }
|
|
};
|
|
|
|
// Test templated classes.
|
|
template <class F> class BF : public A {
|
|
public:
|
|
int virt_1() override { return A::virt_1() + 3; }
|
|
};
|
|
|
|
// Test templated parent class.
|
|
class CF : public BF<int> {
|
|
public:
|
|
int virt_1() override { return A::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A::virt_1' {{.*}}; did you mean 'BF'? {{.*}}
|
|
};
|
|
|
|
// Test both templated class and its parent class.
|
|
template <class F> class DF : public BF<F> {
|
|
public:
|
|
DF() = default;
|
|
int virt_1() override { return A::virt_1(); }
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: qualified name 'A::virt_1' {{.*}}; did you mean 'BF'? {{.*}}
|
|
};
|
|
|
|
// Just to instantiate DF<F>.
|
|
int bar() { return (new DF<int>())->virt_1(); }
|