loplugin:unnecessaryoverride (dtors)

Change-Id: Ia38672028668959bf3d5541fe4ddb9fb72848617

compilerplugins/clang/test/unnecessaryoverride-dtor.cxx

@@ -0,0 +1,121 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+
+#include <salhelper/simplereferenceobject.hxx>
+
+#include <unnecessaryoverride-dtor.hxx>
+
+struct NonVirtualBase {};
+
+struct NonVirtualDerived1: NonVirtualBase {
+    ~NonVirtualDerived1() {}
+};
+
+struct NonVirtualDerived2: NonVirtualBase {
+    virtual ~NonVirtualDerived2() {}
+};
+
+struct PrivateDerived: VirtualBase {
+private:
+    ~PrivateDerived() override {}
+};
+
+struct ProtectedDerived: VirtualBase {
+protected:
+    ~ProtectedDerived() override {}
+};
+
+IncludedDerived2::~IncludedDerived2() {}
+
+struct Incomplete: salhelper::SimpleReferenceObject {};
+
+IncludedDerived3::IncludedDerived3() {}
+
+IncludedDerived3::~IncludedDerived3() {}
+
+struct NoExSpecDerived: VirtualBase {
+    ~NoExSpecDerived() override {} // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+};
+
+struct NoThrowDerived: VirtualBase {
+    ~NoThrowDerived() throw () override {} // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+};
+
+struct NoexceptDerived: VirtualBase {
+    ~NoexceptDerived() noexcept override {} // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+};
+
+struct NoexceptTrueDerived: VirtualBase {
+    ~NoexceptTrueDerived() noexcept(true) override {} // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+};
+
+#if 0
+struct NoexceptFalseBase {
+    virtual ~NoexceptFalseBase() noexcept(false) {}
+};
+
+struct NoexceptFalseDerived: NoexceptFalseBase {
+    ~NoexceptFalseDerived() noexcept(false) override {}
+};
+#endif
+
+struct NoDtorDerived: VirtualBase {};
+
+struct DefaultDerived1: VirtualBase {
+    ~DefaultDerived1() override = default; // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+};
+
+struct DefaultDerived2: VirtualBase {
+    ~DefaultDerived2() override; // expected-note {{declared here [loplugin:unnecessaryoverride]}}
+};
+
+DefaultDerived2::~DefaultDerived2() = default; // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+
+struct EmptyDerived1: VirtualBase {
+    ~EmptyDerived1() override {}; // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+};
+
+struct EmptyDerived2: VirtualBase {
+    ~EmptyDerived2() override; // expected-note {{declared here [loplugin:unnecessaryoverride]}}
+};
+
+EmptyDerived2::~EmptyDerived2() {} // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+
+struct NonEmptyDerived: VirtualBase {
+    ~NonEmptyDerived() override { (void) 0; }
+};
+
+struct CatchDerived: VirtualBase {
+    ~CatchDerived() override try {} catch (...) {}
+};
+
+struct DeleteBase {
+    virtual ~DeleteBase() = delete;
+};
+
+struct DeleteDerived: DeleteBase {
+    ~DeleteDerived() override = delete;
+};
+
+struct PureBase {
+    virtual ~PureBase() = 0;
+};
+
+struct PureDerived: PureBase {
+    ~PureDerived() override {} // expected-error {{unnecessary user-declared destructor [loplugin:unnecessaryoverride]}}
+};
+
+// aovid loplugin:unreffun:
+int main() {
+    (void) NonVirtualDerived1();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */

compilerplugins/clang/test/unnecessaryoverride-dtor.hxx

@@ -0,0 +1,43 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_COMPILERPLUGINS_CLANG_TEST_UNNECESSARYOVERRIDE_DTOR_HXX
+#define INCLUDED_COMPILERPLUGINS_CLANG_TEST_UNNECESSARYOVERRIDE_DTOR_HXX
+
+#include <sal/config.h>
+
+#include <rtl/ref.hxx>
+
+struct VirtualBase {
+    virtual ~VirtualBase() {}
+};
+
+struct IncludedDerived1: VirtualBase {
+    ~IncludedDerived1() override {};
+};
+
+struct IncludedDerived2: VirtualBase {
+    ~IncludedDerived2() override;
+};
+
+struct Incomplete;
+struct IncludedDerived3: VirtualBase {
+    IncludedDerived3();
+    ~IncludedDerived3() override;
+
+private:
+    IncludedDerived3(IncludedDerived3 &) = delete;
+    void operator =(IncludedDerived3) = delete;
+
+    rtl::Reference<Incomplete> m;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */