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/*
* Copyright (C) 2022 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#include "config.h"
#include "JSDOMMicrotask.h"
#include "JSDOMExceptionHandling.h"
#include "JSExecState.h"
#include "ScriptExecutionContext.h"
#include <JavaScriptCore/Debugger.h>
#include <JavaScriptCore/JSGlobalObject.h>
#include <JavaScriptCore/JSObjectInlines.h>
#include <JavaScriptCore/StrongInlines.h>
#include <JavaScriptCore/VMTrapsInlines.h>
namespace WebCore {
using namespace JSC;
class JSDOMMicrotask final : public Microtask {
public:
JSDOMMicrotask(VM& vm, JSObject* job)
: m_job { vm, job }
{
}
private:
void run(JSGlobalObject*) final;
Strong<JSObject> m_job;
};
Ref<Microtask> createJSDOMMicrotask(VM& vm, JSObject* job)
{
return adoptRef(*new JSDOMMicrotask(vm, job));
}
void JSDOMMicrotask::run(JSGlobalObject* globalObject)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* job = m_job.get();
auto* lexicalGlobalObject = job->globalObject();
auto* context = jsCast<JSDOMGlobalObject*>(lexicalGlobalObject)->scriptExecutionContext();
if (!context || context->activeDOMObjectsAreSuspended() || context->activeDOMObjectsAreStopped())
return;
if (UNLIKELY(!scope.clearExceptionExceptTermination()))
return;
auto callData = JSC::getCallData(job);
if (UNLIKELY(!scope.clearExceptionExceptTermination()))
return;
ASSERT(callData.type != CallData::Type::None);
if (UNLIKELY(globalObject->hasDebugger())) {
JSC::DeferTerminationForAWhile deferTerminationForAWhile(vm);
globalObject->debugger()->willRunMicrotask(globalObject, identifier());
scope.clearException();
}
NakedPtr<JSC::Exception> returnedException = nullptr;
if (LIKELY(!vm.hasPendingTerminationException())) {
JSExecState::profiledCall(lexicalGlobalObject, JSC::ProfilingReason::Microtask, job, callData, jsUndefined(), ArgList(), returnedException);
if (returnedException)
reportException(lexicalGlobalObject, returnedException);
scope.clearExceptionExceptTermination();
}
if (UNLIKELY(globalObject->hasDebugger())) {
JSC::DeferTerminationForAWhile deferTerminationForAWhile(vm);
globalObject->debugger()->didRunMicrotask(globalObject, identifier());
scope.clearException();
}
}
} // namespace WebCore
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