JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / runtime / JSPromiseDeferred.cpp

/*
 * Copyright (C) 2013 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
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#include "config.h"
#include "JSPromiseDeferred.h"

#if ENABLE(PROMISES)

#include "BuiltinNames.h"
#include "Error.h"
#include "Exception.h"
#include "JSCJSValueInlines.h"
#include "JSCellInlines.h"
#include "JSPromise.h"
#include "JSPromiseConstructor.h"
#include "SlotVisitorInlines.h"
#include "StructureInlines.h"

namespace JSC {

const ClassInfo JSPromiseDeferred::s_info = { "JSPromiseDeferred", 0, 0, CREATE_METHOD_TABLE(JSPromiseDeferred) };

JSPromiseDeferred* JSPromiseDeferred::create(ExecState* exec, JSGlobalObject* globalObject)
{
    VM& vm = exec->vm();

    JSFunction* newPromiseDeferredFunction = globalObject->newPromiseDeferredFunction();
    CallData callData;
    CallType callType = JSC::getCallData(newPromiseDeferredFunction, callData);
    ASSERT(callType != CallTypeNone);

    MarkedArgumentBuffer arguments;
    JSValue deferred = call(exec, newPromiseDeferredFunction, callType, callData, jsUndefined(), arguments);

    JSValue promise = deferred.get(exec, vm.propertyNames->promisePrivateName);
    ASSERT(promise.inherits(JSPromise::info()));
    JSValue resolve = deferred.get(exec, vm.propertyNames->builtinNames().resolvePrivateName());
    JSValue reject = deferred.get(exec, vm.propertyNames->builtinNames().rejectPrivateName());

    return JSPromiseDeferred::create(vm, jsCast<JSPromise*>(promise), resolve, reject);
}

JSPromiseDeferred* JSPromiseDeferred::create(VM& vm, JSObject* promise, JSValue resolve, JSValue reject)
{
    JSPromiseDeferred* deferred = new (NotNull, allocateCell<JSPromiseDeferred>(vm.heap)) JSPromiseDeferred(vm);
    deferred->finishCreation(vm, promise, resolve, reject);
    return deferred;
}

JSPromiseDeferred::JSPromiseDeferred(VM& vm)
    : Base(vm, vm.promiseDeferredStructure.get())
{
}

void JSPromiseDeferred::finishCreation(VM& vm, JSObject* promise, JSValue resolve, JSValue reject)
{
    Base::finishCreation(vm);
    m_promise.set(vm, this, promise);
    m_resolve.set(vm, this, resolve);
    m_reject.set(vm, this, reject);
}

void JSPromiseDeferred::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
    JSPromiseDeferred* thisObject = jsCast<JSPromiseDeferred*>(cell);
    ASSERT_GC_OBJECT_INHERITS(thisObject, info());

    Base::visitChildren(thisObject, visitor);

    visitor.append(&thisObject->m_promise);
    visitor.append(&thisObject->m_resolve);
    visitor.append(&thisObject->m_reject);
}

} // namespace JSC

#endif // ENABLE(PROMISES)