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/* -*- 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 <atomic>
#include <vcl/vclptr.hxx>
#include <vcl/vclreferencebase.hxx>
struct Widget : public VclReferenceBase
{
VclPtr<Widget> mpParent;
void widget1()
{
// 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()
{
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()
{
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()
{
Widget* p;
p = get<Widget>();
(void)p;
}
void bar4() {
VclPtr<Widget> p1;
//TODO: one error should be enough here?
// expected-error@+2 {{calling delete on instance of VclReferenceBase subclass, must rather call disposeAndClear() [loplugin:vclwidgets]}}
// expected-error@+1 {{calling delete on instance of VclPtr, must rather call disposeAndClear() [loplugin:vclwidgets]}}
delete p1;
std::atomic<int *> p2;
// No false positive here:
delete p2;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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