97abc707c7
Represent BufferSource and ArrayBufferView as ordinary IDL typedefs over their underlying union types, instead of special casing in the IDL generator. This allows the union conversion/return machinery handle these types consistently with other typedefs, which removes buffer specific paths from the IDL generator. This necessitates changing the WebIDL::BufferSource and WebIDL::ArrayBufferView classes as views over these variants. This replaces the old GC backed BufferableObject wrapper structure and provide convenience helpers to determine things such as the byte length, byte offset, backing buffer, and typed-array APIs.
89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
|
|
* Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Variant.h>
|
|
#include <LibGC/CellAllocator.h>
|
|
#include <LibJS/Forward.h>
|
|
#include <LibJS/Heap/Cell.h>
|
|
#include <LibWeb/Forward.h>
|
|
|
|
namespace Web::WebIDL {
|
|
|
|
using ArrayBufferViewVariant = Variant<
|
|
GC::Ref<JS::Int8Array>,
|
|
GC::Ref<JS::Int16Array>,
|
|
GC::Ref<JS::Int32Array>,
|
|
GC::Ref<JS::Uint8Array>,
|
|
GC::Ref<JS::Uint16Array>,
|
|
GC::Ref<JS::Uint32Array>,
|
|
GC::Ref<JS::Uint8ClampedArray>,
|
|
GC::Ref<JS::BigInt64Array>,
|
|
GC::Ref<JS::BigUint64Array>,
|
|
GC::Ref<JS::Float16Array>,
|
|
GC::Ref<JS::Float32Array>,
|
|
GC::Ref<JS::Float64Array>,
|
|
GC::Ref<JS::DataView>>;
|
|
|
|
using NullableArrayBufferViewVariant = FlattenVariant<ArrayBufferViewVariant, Variant<Empty>>;
|
|
|
|
using BufferSourceVariant = FlattenVariant<ArrayBufferViewVariant, Variant<GC::Ref<JS::ArrayBuffer>>>;
|
|
using NullableBufferSourceVariant = FlattenVariant<BufferSourceVariant, Variant<Empty>>;
|
|
|
|
class BufferSource {
|
|
public:
|
|
static BufferSourceVariant from_object(GC::Ref<JS::Object>);
|
|
static bool is_detached(JS::Value const&);
|
|
|
|
BufferSource(BufferSourceVariant const&);
|
|
BufferSource(ArrayBufferViewVariant const&);
|
|
BufferSource(ArrayBufferView const&);
|
|
|
|
u32 byte_length() const;
|
|
u32 byte_offset() const;
|
|
u32 element_size() const;
|
|
|
|
BufferSourceVariant const& buffer_source() const { return m_buffer_source; }
|
|
BufferSourceVariant& buffer_source() { return m_buffer_source; }
|
|
|
|
GC::Ptr<JS::ArrayBuffer> viewed_array_buffer() const;
|
|
GC::Ptr<JS::TypedArrayBase> typed_array_base() const;
|
|
|
|
bool is_data_view() const;
|
|
bool is_array_buffer() const;
|
|
|
|
private:
|
|
BufferSourceVariant m_buffer_source;
|
|
};
|
|
|
|
// https://webidl.spec.whatwg.org/#ArrayBufferView
|
|
class ArrayBufferView {
|
|
public:
|
|
static ArrayBufferViewVariant from_object(GC::Ref<JS::Object>);
|
|
|
|
ArrayBufferView(ArrayBufferViewVariant const&);
|
|
|
|
u32 byte_length() const;
|
|
u32 byte_offset() const;
|
|
u32 element_size() const;
|
|
|
|
ArrayBufferViewVariant const& array_buffer_view() const { return m_array_buffer_view; }
|
|
ArrayBufferViewVariant& array_buffer_view() { return m_array_buffer_view; }
|
|
|
|
GC::Ptr<JS::ArrayBuffer> viewed_array_buffer() const;
|
|
GC::Ptr<JS::TypedArrayBase> typed_array_base() const;
|
|
|
|
bool is_data_view() const;
|
|
|
|
void write(ReadonlyBytes, u32 starting_offset = 0);
|
|
|
|
private:
|
|
ArrayBufferViewVariant m_array_buffer_view;
|
|
};
|
|
|
|
}
|