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/*
* Copyright (C) 2016-2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(WEBASSEMBLY)
#include "AbstractModuleRecord.h"
#include "WasmCreationMode.h"
#include "WasmModuleInformation.h"
namespace JSC {
class JSWebAssemblyInstance;
class JSWebAssemblyModule;
class WebAssemblyFunction;
// Based on the WebAssembly.Instance specification
// https://github.com/WebAssembly/design/blob/master/JS.md#webassemblyinstance-constructor
class WebAssemblyModuleRecord final : public AbstractModuleRecord {
friend class LLIntOffsetsExtractor;
public:
typedef AbstractModuleRecord Base;
DECLARE_EXPORT_INFO;
static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
static WebAssemblyModuleRecord* create(ExecState*, VM&, Structure*, const Identifier&, const Wasm::ModuleInformation&);
void prepareLink(VM&, JSWebAssemblyInstance*);
void link(ExecState*, JSValue scriptFetcher, JSObject* importObject, Wasm::CreationMode);
JS_EXPORT_PRIVATE JSValue evaluate(ExecState*);
private:
WebAssemblyModuleRecord(VM&, Structure*, const Identifier&);
void finishCreation(ExecState*, VM&, const Wasm::ModuleInformation&);
static void destroy(JSCell*);
static void visitChildren(JSCell*, SlotVisitor&);
template<typename T>
using PoisonedBarrier = PoisonedWriteBarrier<WebAssemblyModuleRecordPoison, T>;
PoisonedBarrier<JSWebAssemblyInstance> m_instance;
PoisonedBarrier<JSObject> m_startFunction;
};
} // namespace JSC
#endif // ENABLE(WEBASSEMBLY)