forked from OSchip/llvm-project
51 lines
994 B
C++
51 lines
994 B
C++
// RUN: %clang_cc1 -verify -std=c++11 %s
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// expected-no-diagnostics
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template <typename T> struct OwnPtr {
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T *p;
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~OwnPtr() {
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static_assert(sizeof(T) > 0, "incomplete T");
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delete p;
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}
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};
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namespace use_vtable_for_vcall {
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struct Incomplete;
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struct A {
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virtual ~A() {}
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virtual void m() {}
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};
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struct B : A {
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B();
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virtual void m() { }
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virtual void m2() { static_cast<A *>(this)->m(); }
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OwnPtr<Incomplete> m_sqlError;
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};
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void f() {
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// Since B's constructor is declared out of line, nothing in this file
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// references a vtable, so the destructor doesn't get built.
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A *b = new B();
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b->m();
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delete b;
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}
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}
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namespace dont_mark_qualified_vcall {
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struct Incomplete;
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struct A {
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virtual ~A() {}
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virtual void m() {}
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};
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struct B : A {
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B();
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// Previously we would mark B's vtable referenced to devirtualize this call to
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// A::m, even though it's not a virtual call.
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virtual void m() { A::m(); }
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OwnPtr<Incomplete> m_sqlError;
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};
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B *f() {
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return new B();
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}
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}
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