1/*
2 * Copyright (C) 2008-2009, 2011, 2016 Apple Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "JSWorkerGlobalScope.h"
28
29#include "WorkerGlobalScope.h"
30#include <JavaScriptCore/JSMicrotask.h>
31
32
33namespace WebCore {
34using namespace JSC;
35
36void JSWorkerGlobalScope::visitAdditionalChildren(SlotVisitor& visitor)
37{
38 if (auto* location = wrapped().optionalLocation())
39 visitor.addOpaqueRoot(location);
40 if (auto* navigator = wrapped().optionalNavigator())
41 visitor.addOpaqueRoot(navigator);
42 ScriptExecutionContext& context = wrapped();
43 visitor.addOpaqueRoot(&context);
44
45 // Normally JSEventTargetCustom.cpp's JSEventTarget::visitAdditionalChildren() would call this. But
46 // even though WorkerGlobalScope is an EventTarget, JSWorkerGlobalScope does not subclass
47 // JSEventTarget, so we need to do this here.
48 wrapped().visitJSEventListeners(visitor);
49}
50
51JSValue JSWorkerGlobalScope::queueMicrotask(ExecState& state)
52{
53 VM& vm = state.vm();
54 auto scope = DECLARE_THROW_SCOPE(vm);
55
56 if (UNLIKELY(state.argumentCount() < 1))
57 return throwException(&state, scope, createNotEnoughArgumentsError(&state));
58
59 JSValue functionValue = state.uncheckedArgument(0);
60 if (UNLIKELY(!functionValue.isFunction(vm)))
61 return JSValue::decode(throwArgumentMustBeFunctionError(state, scope, 0, "callback", "WorkerGlobalScope", "queueMicrotask"));
62
63 scope.release();
64 Base::queueMicrotask(JSC::createJSMicrotask(vm, functionValue));
65 return jsUndefined();
66}
67
68} // namespace WebCore
69