mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 09:49:15 +03:00
96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
/*
|
|
* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
|
|
* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibJS/Runtime/DataView.h>
|
|
#include <LibJS/Runtime/TypedArray.h>
|
|
#include <LibWeb/WebIDL/Buffers.h>
|
|
|
|
namespace Web::WebIDL {
|
|
|
|
JS_DEFINE_ALLOCATOR(BufferableObjectBase);
|
|
JS_DEFINE_ALLOCATOR(ArrayBufferView);
|
|
JS_DEFINE_ALLOCATOR(BufferSource);
|
|
|
|
u32 BufferableObjectBase::byte_length() const
|
|
{
|
|
return m_bufferable_object.visit(
|
|
[](JS::NonnullGCPtr<JS::TypedArrayBase> typed_array) {
|
|
auto typed_array_record = JS::make_typed_array_with_buffer_witness_record(typed_array, JS::ArrayBuffer::Order::SeqCst);
|
|
return JS::typed_array_byte_length(typed_array_record);
|
|
},
|
|
[](JS::NonnullGCPtr<JS::DataView> data_view) {
|
|
auto view_record = JS::make_data_view_with_buffer_witness_record(data_view, JS::ArrayBuffer::Order::SeqCst);
|
|
return JS::get_view_byte_length(view_record);
|
|
},
|
|
[](JS::NonnullGCPtr<JS::ArrayBuffer> array_buffer) { return static_cast<u32>(array_buffer->byte_length()); });
|
|
}
|
|
|
|
JS::NonnullGCPtr<JS::Object> BufferableObjectBase::raw_object()
|
|
{
|
|
return m_bufferable_object.visit([](auto const& obj) -> JS::NonnullGCPtr<JS::Object> { return obj; });
|
|
}
|
|
|
|
JS::GCPtr<JS::ArrayBuffer> BufferableObjectBase::viewed_array_buffer()
|
|
{
|
|
return m_bufferable_object.visit(
|
|
[](JS::NonnullGCPtr<JS::ArrayBuffer> array_buffer) -> JS::GCPtr<JS::ArrayBuffer> { return array_buffer; },
|
|
[](auto const& view) -> JS::GCPtr<JS::ArrayBuffer> { return view->viewed_array_buffer(); });
|
|
}
|
|
|
|
BufferableObject BufferableObjectBase::bufferable_object_from_raw_object(JS::NonnullGCPtr<JS::Object> object)
|
|
{
|
|
if (is<JS::TypedArrayBase>(*object))
|
|
return JS::NonnullGCPtr { static_cast<JS::TypedArrayBase&>(*object) };
|
|
|
|
if (is<JS::DataView>(*object))
|
|
return JS::NonnullGCPtr { static_cast<JS::DataView&>(*object) };
|
|
|
|
if (is<JS::ArrayBuffer>(*object))
|
|
return JS::NonnullGCPtr { static_cast<JS::ArrayBuffer&>(*object) };
|
|
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
BufferableObjectBase::BufferableObjectBase(JS::NonnullGCPtr<JS::Object> object)
|
|
: m_bufferable_object(bufferable_object_from_raw_object(object))
|
|
{
|
|
}
|
|
|
|
bool BufferableObjectBase::is_typed_array_base() const
|
|
{
|
|
return m_bufferable_object.has<JS::NonnullGCPtr<JS::TypedArrayBase>>();
|
|
}
|
|
|
|
bool BufferableObjectBase::is_data_view() const
|
|
{
|
|
return m_bufferable_object.has<JS::NonnullGCPtr<JS::DataView>>();
|
|
}
|
|
|
|
bool BufferableObjectBase::is_array_buffer() const
|
|
{
|
|
return m_bufferable_object.has<JS::NonnullGCPtr<JS::ArrayBuffer>>();
|
|
}
|
|
|
|
void BufferableObjectBase::visit_edges(Visitor& visitor)
|
|
{
|
|
Base::visit_edges(visitor);
|
|
m_bufferable_object.visit([&](auto& obj) { visitor.visit(obj); });
|
|
}
|
|
|
|
ArrayBufferView::~ArrayBufferView() = default;
|
|
|
|
u32 ArrayBufferView::byte_offset() const
|
|
{
|
|
return m_bufferable_object.visit(
|
|
[](JS::NonnullGCPtr<JS::ArrayBuffer>) -> u32 { VERIFY_NOT_REACHED(); },
|
|
[](auto& view) -> u32 { return static_cast<u32>(view->byte_offset()); });
|
|
}
|
|
|
|
BufferSource::~BufferSource() = default;
|
|
|
|
}
|