/* * Copyright (C) 2016 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 "WasmCallee.h" #include "WebAssemblyFunctionBase.h" #include <wtf/Noncopyable.h> namespace JSC { class JSGlobalObject; struct ProtoCallFrame; class WebAssemblyInstance; namespace B3 { class Compilation; } class WebAssemblyFunction : public WebAssemblyFunctionBase { public: using Base = WebAssemblyFunctionBase; const static unsigned StructureFlags = Base::StructureFlags; DECLARE_EXPORT_INFO; JS_EXPORT_PRIVATE static WebAssemblyFunction* create(VM&, JSGlobalObject*, unsigned, const String&, JSWebAssemblyInstance*, Wasm::Callee& jsEntrypoint, Wasm::WasmEntrypointLoadLocation, Wasm::SignatureIndex); static Structure* createStructure(VM&, JSGlobalObject*, JSValue); Wasm::SignatureIndex signatureIndex() const { return m_wasmFunction.signatureIndex; } Wasm::WasmEntrypointLoadLocation wasmEntrypointLoadLocation() const { return m_wasmFunction.code; } Wasm::CallableFunction callableFunction() const { return m_wasmFunction; } void* jsEntrypoint() { return m_jsEntrypoint; } static ptrdiff_t offsetOfWasmEntrypointLoadLocation() { return OBJECT_OFFSETOF(WebAssemblyFunction, m_wasmFunction) + Wasm::CallableFunction::offsetOfWasmEntrypointLoadLocation(); } private: WebAssemblyFunction(VM&, JSGlobalObject*, Structure*, Wasm::Callee& jsEntrypoint, Wasm::WasmEntrypointLoadLocation, Wasm::SignatureIndex); // It's safe to just hold the raw CallableFunction/jsEntrypoint because we have a reference // to our Instance, which points to the Module that exported us, which // ensures that the actual Signature/code doesn't get deallocated. void* m_jsEntrypoint; Wasm::CallableFunction m_wasmFunction; }; } // namespace JSC #endif // ENABLE(WEBASSEMBLY)