/* * Copyright (C) 2017-2018 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 #include "DeferGC.h" #include "DisallowVMReentry.h" namespace JSC { class VM; class JSObject; #ifdef NDEBUG class ObjectInitializationScope { public: ALWAYS_INLINE ObjectInitializationScope(VM& vm) : m_vm(vm) { } ALWAYS_INLINE VM& vm() const { return m_vm; } ALWAYS_INLINE void notifyAllocated(JSObject*, bool) { } ALWAYS_INLINE void notifyInitialized(JSObject*) { } private: VM& m_vm; }; #else // not NDEBUG class ObjectInitializationScope { public: JS_EXPORT_PRIVATE ObjectInitializationScope(VM&); JS_EXPORT_PRIVATE ~ObjectInitializationScope(); VM& vm() const { return m_vm; } void notifyAllocated(JSObject*, bool wasCreatedUninitialized); void notifyInitialized(JSObject*); private: void verifyPropertiesAreInitialized(JSObject*); VM& m_vm; DisallowGC m_disallowGC; DisallowVMReentry m_disallowVMReentry; JSObject* m_object { nullptr }; }; #endif // NDEBUG } // namespace JSC