| Index: base/mac/scoped_typeref.h
|
| diff --git a/base/mac/scoped_typeref.h b/base/mac/scoped_typeref.h
|
| deleted file mode 100644
|
| index 61ee31198173f8b6c611516c4615ca4be4b3db76..0000000000000000000000000000000000000000
|
| --- a/base/mac/scoped_typeref.h
|
| +++ /dev/null
|
| @@ -1,132 +0,0 @@
|
| -// Copyright 2014 The Chromium Authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#ifndef BASE_MAC_SCOPED_TYPEREF_H_
|
| -#define BASE_MAC_SCOPED_TYPEREF_H_
|
| -
|
| -#include "base/basictypes.h"
|
| -#include "base/compiler_specific.h"
|
| -#include "base/logging.h"
|
| -#include "base/memory/scoped_policy.h"
|
| -
|
| -namespace base {
|
| -
|
| -// ScopedTypeRef<> is patterned after scoped_ptr<>, but maintains a ownership
|
| -// of a reference to any type that is maintained by Retain and Release methods.
|
| -//
|
| -// The Traits structure must provide the Retain and Release methods for type T.
|
| -// A default ScopedTypeRefTraits is used but not defined, and should be defined
|
| -// for each type to use this interface. For example, an appropriate definition
|
| -// of ScopedTypeRefTraits for CGLContextObj would be:
|
| -//
|
| -// template<>
|
| -// struct ScopedTypeRefTraits<CGLContextObj> {
|
| -// void Retain(CGLContextObj object) { CGLContextRetain(object); }
|
| -// void Release(CGLContextObj object) { CGLContextRelease(object); }
|
| -// };
|
| -//
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| -// For the many types that have pass-by-pointer create functions, the function
|
| -// InitializeInto() is provided to allow direct initialization and assumption
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| -// of ownership of the object. For example, continuing to use the above
|
| -// CGLContextObj specialization:
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| -//
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| -// base::ScopedTypeRef<CGLContextObj> context;
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| -// CGLCreateContext(pixel_format, share_group, context.InitializeInto());
|
| -//
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| -// For initialization with an existing object, the caller may specify whether
|
| -// the ScopedTypeRef<> being initialized is assuming the caller's existing
|
| -// ownership of the object (and should not call Retain in initialization) or if
|
| -// it should not assume this ownership and must create its own (by calling
|
| -// Retain in initialization). This behavior is based on the |policy| parameter,
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| -// with |ASSUME| for the former and |RETAIN| for the latter. The default policy
|
| -// is to |ASSUME|.
|
| -
|
| -template<typename T>
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| -struct ScopedTypeRefTraits;
|
| -
|
| -template<typename T, typename Traits = ScopedTypeRefTraits<T>>
|
| -class ScopedTypeRef {
|
| - public:
|
| - typedef T element_type;
|
| -
|
| - ScopedTypeRef(
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| - T object = NULL,
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| - base::scoped_policy::OwnershipPolicy policy = base::scoped_policy::ASSUME)
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| - : object_(object) {
|
| - if (object_ && policy == base::scoped_policy::RETAIN)
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| - Traits::Retain(object_);
|
| - }
|
| -
|
| - ScopedTypeRef(const ScopedTypeRef<T, Traits>& that)
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| - : object_(that.object_) {
|
| - if (object_)
|
| - Traits::Retain(object_);
|
| - }
|
| -
|
| - ~ScopedTypeRef() {
|
| - if (object_)
|
| - Traits::Release(object_);
|
| - }
|
| -
|
| - ScopedTypeRef& operator=(const ScopedTypeRef<T, Traits>& that) {
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| - reset(that.get(), base::scoped_policy::RETAIN);
|
| - return *this;
|
| - }
|
| -
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| - // This is to be used only to take ownership of objects that are created
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| - // by pass-by-pointer create functions. To enforce this, require that the
|
| - // object be reset to NULL before this may be used.
|
| - T* InitializeInto() WARN_UNUSED_RESULT {
|
| - DCHECK(!object_);
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| - return &object_;
|
| - }
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| -
|
| - void reset(T object = NULL,
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| - base::scoped_policy::OwnershipPolicy policy =
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| - base::scoped_policy::ASSUME) {
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| - if (object && policy == base::scoped_policy::RETAIN)
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| - Traits::Retain(object);
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| - if (object_)
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| - Traits::Release(object_);
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| - object_ = object;
|
| - }
|
| -
|
| - bool operator==(T that) const {
|
| - return object_ == that;
|
| - }
|
| -
|
| - bool operator!=(T that) const {
|
| - return object_ != that;
|
| - }
|
| -
|
| - operator T() const {
|
| - return object_;
|
| - }
|
| -
|
| - T get() const {
|
| - return object_;
|
| - }
|
| -
|
| - void swap(ScopedTypeRef& that) {
|
| - T temp = that.object_;
|
| - that.object_ = object_;
|
| - object_ = temp;
|
| - }
|
| -
|
| - // ScopedTypeRef<>::release() is like scoped_ptr<>::release. It is NOT
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| - // a wrapper for Release(). To force a ScopedTypeRef<> object to call
|
| - // Release(), use ScopedTypeRef<>::reset().
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| - T release() WARN_UNUSED_RESULT {
|
| - T temp = object_;
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| - object_ = NULL;
|
| - return temp;
|
| - }
|
| -
|
| - private:
|
| - T object_;
|
| -};
|
| -
|
| -} // namespace base
|
| -
|
| -#endif // BASE_MAC_SCOPED_TYPEREF_H_
|
|
|