mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 13:52:43 +00:00
91 lines
3 KiB
C++
91 lines
3 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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#include <LibJS/Runtime/DataView.h>
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#include <LibJS/Runtime/TypedArray.h>
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#include <LibWeb/WebIDL/Buffers.h>
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namespace Web::WebIDL {
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u32 BufferableObjectBase::byte_length() const
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{
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return m_bufferable_object.visit(
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[](JS::NonnullGCPtr<JS::TypedArrayBase> typed_array) {
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auto typed_array_record = JS::make_typed_array_with_buffer_witness_record(typed_array, JS::ArrayBuffer::Order::SeqCst);
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return JS::typed_array_byte_length(typed_array_record);
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},
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[](JS::NonnullGCPtr<JS::DataView> data_view) {
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auto view_record = JS::make_data_view_with_buffer_witness_record(data_view, JS::ArrayBuffer::Order::SeqCst);
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return JS::get_view_byte_length(view_record);
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},
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[](JS::NonnullGCPtr<JS::ArrayBuffer> array_buffer) { return static_cast<u32>(array_buffer->byte_length()); });
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}
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JS::NonnullGCPtr<JS::Object> BufferableObjectBase::raw_object()
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{
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return m_bufferable_object.visit([](auto const& obj) -> JS::NonnullGCPtr<JS::Object> { return obj; });
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}
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JS::GCPtr<JS::ArrayBuffer> BufferableObjectBase::viewed_array_buffer()
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{
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return m_bufferable_object.visit(
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[](JS::NonnullGCPtr<JS::ArrayBuffer> array_buffer) -> JS::GCPtr<JS::ArrayBuffer> { return array_buffer; },
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[](auto const& view) -> JS::GCPtr<JS::ArrayBuffer> { return view->viewed_array_buffer(); });
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}
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BufferableObject BufferableObjectBase::bufferable_object_from_raw_object(JS::NonnullGCPtr<JS::Object> object)
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{
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if (is<JS::TypedArrayBase>(*object))
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return JS::NonnullGCPtr { static_cast<JS::TypedArrayBase&>(*object) };
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if (is<JS::DataView>(*object))
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return JS::NonnullGCPtr { static_cast<JS::DataView&>(*object) };
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if (is<JS::ArrayBuffer>(*object))
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return JS::NonnullGCPtr { static_cast<JS::ArrayBuffer&>(*object) };
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VERIFY_NOT_REACHED();
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}
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BufferableObjectBase::BufferableObjectBase(JS::NonnullGCPtr<JS::Object> object)
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: m_bufferable_object(bufferable_object_from_raw_object(object))
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{
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}
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bool BufferableObjectBase::is_typed_array_base() const
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{
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return m_bufferable_object.has<JS::NonnullGCPtr<JS::TypedArrayBase>>();
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}
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bool BufferableObjectBase::is_data_view() const
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{
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return m_bufferable_object.has<JS::NonnullGCPtr<JS::DataView>>();
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}
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bool BufferableObjectBase::is_array_buffer() const
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{
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return m_bufferable_object.has<JS::NonnullGCPtr<JS::ArrayBuffer>>();
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}
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void BufferableObjectBase::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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m_bufferable_object.visit([&](auto& obj) { visitor.visit(obj); });
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}
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ArrayBufferView::~ArrayBufferView() = default;
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u32 ArrayBufferView::byte_offset() const
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{
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return m_bufferable_object.visit(
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[](JS::NonnullGCPtr<JS::ArrayBuffer>) -> u32 { VERIFY_NOT_REACHED(); },
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[](auto& view) -> u32 { return static_cast<u32>(view->byte_offset()); });
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}
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BufferSource::~BufferSource() = default;
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}
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