Source/WebCore/bindings/js/JSDOMMicrotask.cpp

/*
 * Copyright (C) 2022 Apple Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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#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>

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)
{
    JSObject* job = m_job.get();

    auto* lexicalGlobalObject = job->globalObject();
    auto* context = jsCast<JSDOMGlobalObject*>(lexicalGlobalObject)->scriptExecutionContext();
    if (!context || context->activeDOMObjectsAreSuspended() || context->activeDOMObjectsAreStopped())
        return;

    auto callData = JSC::getCallData(job);
    ASSERT(callData.type != CallData::Type::None);

    if (UNLIKELY(globalObject->hasDebugger()))
        globalObject->debugger()->willRunMicrotask();

    NakedPtr<JSC::Exception> returnedException = nullptr;
    JSExecState::profiledCall(lexicalGlobalObject, JSC::ProfilingReason::Microtask, job, callData, jsUndefined(), ArgList(), returnedException);
    if (returnedException)
        reportException(lexicalGlobalObject, returnedException);

    if (UNLIKELY(globalObject->hasDebugger()))
        globalObject->debugger()->didRunMicrotask();
}

} // namespace WebCore