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// RUN: %clang_cc1 %s -fsyntax-only -verify -triple %itanium_abi_triple -Wweak-vtables -Wweak-template-vtables
// RUN: %clang_cc1 %s -fsyntax-only -triple %ms_abi_triple -Werror -Wno-weak-vtables -Wno-weak-template-vtables
struct A { // expected-warning {{'A' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}}
virtual void f() { }
};
template<typename T> struct B {
virtual void f() { }
};
namespace {
struct C {
virtual void f() { }
};
}
void f() {
struct A {
virtual void f() { }
};
A a;
}
// Use the vtables
void uses_abc() {
A a;
B<int> b;
C c;
}
// <rdar://problem/9979458>
class Parent {
public:
Parent() {}
virtual ~Parent();
virtual void * getFoo() const = 0;
};
class Derived : public Parent {
public:
Derived();
void * getFoo() const;
};
class VeryDerived : public Derived { // expected-warning{{'VeryDerived' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}}
public:
void * getFoo() const { return 0; }
};
Parent::~Parent() {}
void uses_derived() {
Derived d;
VeryDerived vd;
}
template<typename T> struct TemplVirt {
virtual void f();
};
template class TemplVirt<float>; // expected-warning{{explicit template instantiation 'TemplVirt<float>' will emit a vtable in every translation unit}}
template<> struct TemplVirt<bool> {
virtual void f();
};
template<> struct TemplVirt<long> { // expected-warning{{'TemplVirt<long>' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}}
virtual void f() {}
};
void uses_templ() {
TemplVirt<float> f;
TemplVirt<bool> b;
TemplVirt<long> l;
}
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