/* * 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)