| // Copyright 2015 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 THIRD_PARTY_BLINK_RENDERER_CORE_TYPED_ARRAYS_TYPED_FLEXIBLE_ARRAY_BUFFER_VIEW_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_TYPED_ARRAYS_TYPED_FLEXIBLE_ARRAY_BUFFER_VIEW_H_ |
| |
| #include "base/macros.h" |
| #include "third_party/blink/renderer/core/core_export.h" |
| #include "third_party/blink/renderer/core/typed_arrays/flexible_array_buffer_view.h" |
| |
| namespace blink { |
| |
| template <typename WTFTypedArray> |
| class TypedFlexibleArrayBufferView final : public FlexibleArrayBufferView { |
| STACK_ALLOCATED(); |
| |
| public: |
| using ValueType = typename WTFTypedArray::ValueType; |
| |
| TypedFlexibleArrayBufferView() : FlexibleArrayBufferView() {} |
| |
| ValueType* DataMaybeOnStack() const { |
| return static_cast<ValueType*>(BaseAddressMaybeOnStack()); |
| } |
| |
| unsigned length() const { |
| DCHECK_EQ(ByteLength() % sizeof(ValueType), 0u); |
| return ByteLength() / sizeof(ValueType); |
| } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(TypedFlexibleArrayBufferView); |
| }; |
| |
| using FlexibleFloat32ArrayView = |
| TypedFlexibleArrayBufferView<WTF::Float32Array>; |
| using FlexibleInt32ArrayView = TypedFlexibleArrayBufferView<WTF::Int32Array>; |
| using FlexibleUint32ArrayView = TypedFlexibleArrayBufferView<WTF::Uint32Array>; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_TYPED_ARRAYS_TYPED_FLEXIBLE_ARRAY_BUFFER_VIEW_H_ |