163 lines
5.6 KiB
C++
163 lines
5.6 KiB
C++
/*
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* Copyright (C) 2008-2021 Apple Inc. All rights reserved.
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* Copyright (C) 2009 Google Inc. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "config.h"
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#include "JSWorkerGlobalScopeBase.h"
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#include "DOMWrapperWorld.h"
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#include "EventLoop.h"
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#include "JSDOMGlobalObjectTask.h"
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#include "JSDOMGuardedObject.h"
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#include "JSMicrotaskCallback.h"
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#include "WorkerGlobalScope.h"
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#include "WorkerThread.h"
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#include <JavaScriptCore/JSCInlines.h>
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#include <JavaScriptCore/JSCJSValueInlines.h>
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#include <JavaScriptCore/JSProxy.h>
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#include <JavaScriptCore/Microtask.h>
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#include <wtf/Language.h>
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namespace WebCore {
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using namespace JSC;
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const ClassInfo JSWorkerGlobalScopeBase::s_info = { "WorkerGlobalScope", &JSDOMGlobalObject::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSWorkerGlobalScopeBase) };
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const GlobalObjectMethodTable JSWorkerGlobalScopeBase::s_globalObjectMethodTable = {
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&supportsRichSourceInfo,
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&shouldInterruptScript,
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&javaScriptRuntimeFlags,
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&queueMicrotaskToEventLoop,
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&shouldInterruptScriptBeforeTimeout,
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&moduleLoaderImportModule,
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&moduleLoaderResolve,
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&moduleLoaderFetch,
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&moduleLoaderCreateImportMetaProperties,
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&moduleLoaderEvaluate,
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&promiseRejectionTracker,
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&reportUncaughtExceptionAtEventLoop,
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¤tScriptExecutionOwner,
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&scriptExecutionStatus,
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[] { return defaultLanguage(); },
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#if ENABLE(WEBASSEMBLY)
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&compileStreaming,
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&instantiateStreaming,
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#else
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nullptr,
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nullptr,
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#endif
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};
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JSWorkerGlobalScopeBase::JSWorkerGlobalScopeBase(JSC::VM& vm, JSC::Structure* structure, RefPtr<WorkerGlobalScope>&& impl)
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: JSDOMGlobalObject(vm, structure, normalWorld(vm), &s_globalObjectMethodTable)
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, m_wrapped(WTFMove(impl))
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{
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}
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void JSWorkerGlobalScopeBase::finishCreation(VM& vm, JSProxy* proxy)
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{
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m_proxy.set(vm, this, proxy);
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Base::finishCreation(vm, m_proxy.get());
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ASSERT(inherits(vm, info()));
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}
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template<typename Visitor>
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void JSWorkerGlobalScopeBase::visitChildrenImpl(JSCell* cell, Visitor& visitor)
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{
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JSWorkerGlobalScopeBase* thisObject = jsCast<JSWorkerGlobalScopeBase*>(cell);
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ASSERT_GC_OBJECT_INHERITS(thisObject, info());
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Base::visitChildren(thisObject, visitor);
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visitor.append(thisObject->m_proxy);
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}
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DEFINE_VISIT_CHILDREN(JSWorkerGlobalScopeBase);
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void JSWorkerGlobalScopeBase::destroy(JSCell* cell)
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{
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static_cast<JSWorkerGlobalScopeBase*>(cell)->JSWorkerGlobalScopeBase::~JSWorkerGlobalScopeBase();
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}
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ScriptExecutionContext* JSWorkerGlobalScopeBase::scriptExecutionContext() const
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{
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return m_wrapped.get();
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}
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bool JSWorkerGlobalScopeBase::supportsRichSourceInfo(const JSGlobalObject* object)
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{
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return JSGlobalObject::supportsRichSourceInfo(object);
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}
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bool JSWorkerGlobalScopeBase::shouldInterruptScript(const JSGlobalObject* object)
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{
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return JSGlobalObject::shouldInterruptScript(object);
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}
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bool JSWorkerGlobalScopeBase::shouldInterruptScriptBeforeTimeout(const JSGlobalObject* object)
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{
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return JSGlobalObject::shouldInterruptScriptBeforeTimeout(object);
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}
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RuntimeFlags JSWorkerGlobalScopeBase::javaScriptRuntimeFlags(const JSGlobalObject* object)
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{
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const JSWorkerGlobalScopeBase *thisObject = jsCast<const JSWorkerGlobalScopeBase*>(object);
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return thisObject->m_wrapped->thread().runtimeFlags();
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}
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JSC::ScriptExecutionStatus JSWorkerGlobalScopeBase::scriptExecutionStatus(JSC::JSGlobalObject* globalObject, JSC::JSObject* owner)
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{
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ASSERT_UNUSED(owner, globalObject == owner);
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return jsCast<JSWorkerGlobalScopeBase*>(globalObject)->scriptExecutionContext()->jscScriptExecutionStatus();
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}
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void JSWorkerGlobalScopeBase::queueMicrotaskToEventLoop(JSGlobalObject& object, Ref<JSC::Microtask>&& task)
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{
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JSWorkerGlobalScopeBase& thisObject = static_cast<JSWorkerGlobalScopeBase&>(object);
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auto callback = JSMicrotaskCallback::create(thisObject, WTFMove(task));
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auto& context = thisObject.wrapped();
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context.eventLoop().queueMicrotask([callback = WTFMove(callback)]() mutable {
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callback->call();
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});
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}
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JSValue toJS(JSGlobalObject* lexicalGlobalObject, JSDOMGlobalObject*, WorkerGlobalScope& workerGlobalScope)
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{
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return toJS(lexicalGlobalObject, workerGlobalScope);
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}
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JSValue toJS(JSGlobalObject*, WorkerGlobalScope& workerGlobalScope)
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{
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auto* script = workerGlobalScope.script();
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if (!script)
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return jsNull();
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auto* contextWrapper = script->globalScopeWrapper();
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ASSERT(contextWrapper);
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return &contextWrapper->proxy();
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}
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} // namespace WebCore
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