LiteLoaderBDS-1.16.40/Tools/ScriptX/backend/WebAssembly/trait/TraitReference.h
2023-03-02 23:06:13 -08:00

89 lines
2.2 KiB
C++

/*
* Tencent is pleased to support the open source community by making ScriptX available.
* Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include "../../../src/types.h"
#include "../WasmHelper.h"
namespace script {
namespace wasm_backend {
struct ByteBufferState {
// val_ maybe any TypedArray or our "decorated shared Int8Array"
mutable int val_ = -1;
mutable std::shared_ptr<void> backingStore_;
mutable size_t size_ = 0;
mutable std::optional<ByteBuffer::Type> type_;
/**
* constructor to create ByteBuffer wrapping ArrayBuffer of SharedByteBuffer
* @param val
*/
/*no explict*/ ByteBufferState(int val); // NOLINT
/** constructor to create SharedByteBuffer */
ByteBufferState(std::shared_ptr<void> backingStore, size_t size);
ByteBufferState(ByteBufferState&& move) noexcept;
ByteBufferState(const ByteBufferState&) = default;
ByteBufferState& operator=(int);
void reset() const;
void fillTypeAndSize() const;
void fillBackingStore() const;
void fillWrapperIfNeed() const;
};
void swap(ByteBufferState& lhs, ByteBufferState& rhs);
} // namespace wasm_backend
namespace internal {
template <typename T>
struct ImplType<Local<T>> {
using type = int;
};
template <>
struct ImplType<Local<ByteBuffer>> {
using type = wasm_backend::ByteBufferState;
};
template <typename T>
struct ImplType<Global<T>> {
using type = int;
};
template <typename T>
struct ImplType<Weak<T>> {
using type = int;
};
} // namespace internal
} // namespace script