crashpad/util/stdlib/pointer_container.h
Mark Mentovai bbeef320e0 C++11: Use template aliases instead of inheritance.
This only came up in one location, PointerVector.

A template alias is superior to inheritance, which doesn’t provide full
type equivalence and doesn’t automatically inherit non-default
constructors.

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/683753005
2014-11-05 14:54:42 -05:00

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// Copyright 2014 The Crashpad Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef CRASHPAD_UTIL_STDLIB_POINTER_CONTAINER_H_
#define CRASHPAD_UTIL_STDLIB_POINTER_CONTAINER_H_
#include <vector>
#include "base/basictypes.h"
#include "base/stl_util.h"
namespace crashpad {
//! \brief Allows a standard container to “own” pointer elements stored in it.
//!
//! When the container is destroyed, `delete` will be called on its pointer
//! elements.
//!
//! \note No attempt is made to `delete` elements that are removed from the
//! container by other means, such as replacement or `clear()`.
template <typename ContainerType>
class PointerContainer : public ContainerType {
public:
PointerContainer() : ContainerType(), pointer_deleter_(this) {}
~PointerContainer() {}
private:
STLElementDeleter<ContainerType> pointer_deleter_;
DISALLOW_COPY_AND_ASSIGN(PointerContainer);
};
//! \brief Allows a `std::vector` to “own” pointer elements stored in it.
//!
//! When the vector is destroyed, `delete` will be called on its pointer
//! elements.
//!
//! \note No attempt is made to `delete` elements that are removed from the
//! vector by other means, such as replacement or `clear()`.
template <typename T>
using PointerVector = PointerContainer<std::vector<T*>>;
} // namespace crashpad
#endif // CRASHPAD_UTIL_STDLIB_POINTER_CONTAINER_H_