[go: nahoru, domu]

blob: 39ef0ace56e95685e65936d09fdc073edd1a5a02 [file] [log] [blame]
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This is a "No Compile Test" suite.
// http://dev.chromium.org/developers/testing/no-compile-tests
#include <type_traits>
#include "base/observer_list.h"
namespace base {
void CannotUseCheckedObserverInUncheckedList() {
struct Observer : public CheckedObserver {
void OnObserve() {}
};
ObserverList<Observer>::Unchecked list;
for (auto& observer : list) // expected-error@base/observer_list_internal.h:* {{CheckedObserver classes must not use ObserverList<T>::Unchecked}}
observer.OnObserve();
}
void CannotUseUncheckedObserverInCheckedList() {
struct UncheckedObserver {
void OnObserve() {}
};
ObserverList<UncheckedObserver> list;
for (auto& observer : list) // expected-error@base/observer_list_internal.h:* {{Observers should inherit from base::CheckedObserver.}}
observer.OnObserve(); // expected-error@*:* {{static_cast from 'base::CheckedObserver *' to 'UncheckedObserver *', which are not related by inheritance, is not allowed}}
}
} // namespace base