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Diffstat (limited to 'compilerplugins/clang/test/vclwidgets.cxx')
-rw-r--r-- | compilerplugins/clang/test/vclwidgets.cxx | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/vclwidgets.cxx b/compilerplugins/clang/test/vclwidgets.cxx new file mode 100644 index 000000000000..c18c775c054a --- /dev/null +++ b/compilerplugins/clang/test/vclwidgets.cxx @@ -0,0 +1,86 @@ +/* -*- 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 <vcl/vclreferencebase.hxx> + +struct Widget : public VclReferenceBase +{ + VclPtr<Widget> mpParent; + + void widget1() // expected-error {{Unreferenced externally visible function definition [loplugin:unreffun]}} + { + // test that we ignore assignments from a member field + Widget* p = mpParent; + (void)p; + // test against false+ + p = true ? mpParent.get() : nullptr; + } + + ~Widget() override + { + disposeOnce(); + } + + void dispose() override + { + mpParent.clear(); + VclReferenceBase::dispose(); + } +}; + +VclPtr<Widget> f() +{ + return nullptr; +} + +Widget* g() +{ + return nullptr; +} + +// test the variable init detection +void bar() // expected-error {{Unreferenced externally visible function definition [loplugin:unreffun]}} +{ + Widget* p = f(); // expected-error {{assigning a returned-by-value VclPtr<T> to a T* variable is dodgy, should be assigned to a VclPtr. If you know that the RHS does not return a newly created T, then add a '.get()' to the RHS [loplugin:vclwidgets]}} + (void)p; + Widget* q = g(); + (void)q; + Widget* r = nullptr; + (void)r; +} + +// test the assignment detection +void bar2() // expected-error {{Unreferenced externally visible function definition [loplugin:unreffun]}} +{ + Widget* p; + p = nullptr; + p = f(); // expected-error {{assigning a returned-by-value VclPtr<T> to a T* variable is dodgy, should be assigned to a VclPtr. If you know that the RHS does not return a newly created T, then add a '.get()' to the RHS [loplugin:vclwidgets]}} + (void)p; + Widget* q; + q = g(); + (void)q; +} + + +// test against false+ + +template<class T> +T * get() { return nullptr; } + +void bar3() // expected-error {{Unreferenced externally visible function definition [loplugin:unreffun]}} +{ + Widget* p; + p = get<Widget>(); +} + + + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |