Move files in wtf/ to platform/wtf/ (Part 11).

third_party/WebKit/Source/wtf/typed_arrays/TypedArrayBase.h

-/*
- * Copyright (C) 2010 Apple Inc. All rights reserved.
- * Copyright (c) 2010, Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
+// Copyright 2017 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 TypedArrayBase_h
-#define TypedArrayBase_h
+#include "platform/wtf/typed_arrays/TypedArrayBase.h"
 
-#include "wtf/typed_arrays/ArrayBuffer.h"
-#include "wtf/typed_arrays/ArrayBufferView.h"
-
-namespace WTF {
-
-template <typename T>
-class TypedArrayBase : public ArrayBufferView {
- public:
-  typedef T ValueType;
-
-  T* data() const { return static_cast<T*>(baseAddress()); }
-
-  bool set(TypedArrayBase<T>* array, unsigned offset) {
-    return setImpl(array, offset * sizeof(T));
-  }
-
-  // Overridden from ArrayBufferView. This must be public because of
-  // rules about inheritance of members in template classes, and
-  // because it is accessed via pointers to subclasses.
-  unsigned length() const { return m_length; }
-
-  unsigned byteLength() const final { return m_length * sizeof(T); }
-
-  unsigned typeSize() const final { return sizeof(T); }
-
-  // Invoked by the indexed getter. Does not perform range checks; caller
-  // is responsible for doing so and returning undefined as necessary.
-  T item(unsigned index) const {
-    SECURITY_DCHECK(index < TypedArrayBase<T>::m_length);
-    return TypedArrayBase<T>::data()[index];
-  }
-
- protected:
-  TypedArrayBase(PassRefPtr<ArrayBuffer> buffer,
-                 unsigned byteOffset,
-                 unsigned length)
-      : ArrayBufferView(std::move(buffer), byteOffset), m_length(length) {}
-
-  template <class Subclass>
-  static PassRefPtr<Subclass> create(unsigned length) {
-    RefPtr<ArrayBuffer> buffer = ArrayBuffer::create(length, sizeof(T));
-    return create<Subclass>(buffer.release(), 0, length);
-  }
-
-  template <class Subclass>
-  static PassRefPtr<Subclass> create(const T* array, unsigned length) {
-    RefPtr<Subclass> a = create<Subclass>(length);
-    if (a)
-      for (unsigned i = 0; i < length; ++i)
-        a->set(i, array[i]);
-    return a;
-  }
-
-  template <class Subclass>
-  static PassRefPtr<Subclass> create(PassRefPtr<ArrayBuffer> buffer,
-                                     unsigned byteOffset,
-                                     unsigned length) {
-    RefPtr<ArrayBuffer> buf(std::move(buffer));
-    RELEASE_ASSERT(verifySubRange<T>(buf, byteOffset, length));
-    return adoptRef(new Subclass(buf.release(), byteOffset, length));
-  }
-
-  template <class Subclass>
-  static PassRefPtr<Subclass> createOrNull(unsigned length) {
-    RefPtr<ArrayBuffer> buffer = ArrayBuffer::createOrNull(length, sizeof(T));
-    if (!buffer)
-      return nullptr;
-    return create<Subclass>(buffer.release(), 0, length);
-  }
-
-  void neuter() final {
-    ArrayBufferView::neuter();
-    m_length = 0;
-  }
-
-  // We do not want to have to access this via a virtual function in subclasses,
-  // which is why it is protected rather than private.
-  unsigned m_length;
-};
-
-}  // namespace WTF
-
-using WTF::TypedArrayBase;
-
-#endif  // TypedArrayBase_h
+// The contents of this header was moved to platform/wtf as part of
+// WTF migration project. See the following post for details:
+// https://groups.google.com/a/chromium.org/d/msg/blink-dev/tLdAZCTlcAA/bYXVT8gYCAAJ