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89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
/*
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* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
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* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Variant.h>
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#include <LibJS/Forward.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibJS/Heap/CellAllocator.h>
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namespace Web::WebIDL {
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using BufferableObject = Variant<
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JS::NonnullGCPtr<JS::TypedArrayBase>,
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JS::NonnullGCPtr<JS::DataView>,
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JS::NonnullGCPtr<JS::ArrayBuffer>>;
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class BufferableObjectBase : public JS::Cell {
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JS_CELL(BufferableObjectBase, JS::Cell);
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JS_DECLARE_ALLOCATOR(BufferableObjectBase);
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public:
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virtual ~BufferableObjectBase() override = default;
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u32 byte_length() const;
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JS::NonnullGCPtr<JS::Object> raw_object();
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JS::GCPtr<JS::ArrayBuffer> viewed_array_buffer();
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BufferableObject const& bufferable_object() const { return m_bufferable_object; }
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BufferableObject& bufferable_object() { return m_bufferable_object; }
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protected:
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BufferableObjectBase(JS::NonnullGCPtr<JS::Object>);
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virtual void visit_edges(Visitor&) override;
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bool is_data_view() const;
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bool is_typed_array_base() const;
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bool is_array_buffer() const;
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static BufferableObject bufferable_object_from_raw_object(JS::NonnullGCPtr<JS::Object>);
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BufferableObject m_bufferable_object;
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};
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// https://webidl.spec.whatwg.org/#ArrayBufferView
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//
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// typedef (Int8Array or Int16Array or Int32Array or
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// Uint8Array or Uint16Array or Uint32Array or Uint8ClampedArray or
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// BigInt64Array or BigUint64Array or
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// Float32Array or Float64Array or DataView) ArrayBufferView;
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class ArrayBufferView : public BufferableObjectBase {
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JS_CELL(ArrayBufferView, BufferableObjectBase);
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JS_DECLARE_ALLOCATOR(ArrayBufferView);
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public:
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using BufferableObjectBase::BufferableObjectBase;
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virtual ~ArrayBufferView() override;
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using BufferableObjectBase::is_data_view;
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using BufferableObjectBase::is_typed_array_base;
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u32 byte_offset() const;
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};
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// https://webidl.spec.whatwg.org/#BufferSource
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//
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// typedef (ArrayBufferView or ArrayBuffer) BufferSource;
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class BufferSource : public BufferableObjectBase {
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JS_CELL(BufferSource, BufferableObjectBase);
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JS_DECLARE_ALLOCATOR(BufferSource);
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public:
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using BufferableObjectBase::BufferableObjectBase;
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virtual ~BufferSource() override;
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using BufferableObjectBase::is_array_buffer;
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using BufferableObjectBase::is_data_view;
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using BufferableObjectBase::is_typed_array_base;
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};
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}
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