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/*
* Copyright (C) 2017-2021 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 "JSDOMPromise.h"
// #include "DOMWindow.h"
// #include "JSDOMWindow.h"
#include <JavaScriptCore/BuiltinNames.h>
#include <JavaScriptCore/CatchScope.h>
#include <JavaScriptCore/Exception.h>
#include <JavaScriptCore/JSNativeStdFunction.h>
#include <JavaScriptCore/JSPromiseConstructor.h>
using namespace JSC;
namespace WebCore {
auto DOMPromise::whenSettled(std::function<void()>&& callback) -> IsCallbackRegistered
{
return whenPromiseIsSettled(globalObject(), promise(), WTFMove(callback));
}
auto DOMPromise::whenPromiseIsSettled(JSDOMGlobalObject* globalObject, JSC::JSObject* promise, Function<void()>&& callback) -> IsCallbackRegistered
{
auto& lexicalGlobalObject = *globalObject;
auto& vm = lexicalGlobalObject.vm();
JSLockHolder lock(vm);
auto* handler = JSC::JSNativeStdFunction::create(vm, globalObject, 1, String {}, [callback = WTFMove(callback)](JSGlobalObject*, CallFrame*) mutable {
callback();
return JSC::JSValue::encode(JSC::jsUndefined());
});
auto scope = DECLARE_THROW_SCOPE(vm);
const JSC::Identifier& privateName = vm.propertyNames->builtinNames().thenPrivateName();
auto thenFunction = promise->get(&lexicalGlobalObject, privateName);
EXCEPTION_ASSERT(!scope.exception() || vm.hasPendingTerminationException());
if (scope.exception())
return IsCallbackRegistered::No;
ASSERT(thenFunction.isCallable());
JSC::MarkedArgumentBuffer arguments;
arguments.append(handler);
arguments.append(handler);
auto callData = JSC::getCallData(thenFunction);
ASSERT(callData.type != JSC::CallData::Type::None);
call(&lexicalGlobalObject, thenFunction, callData, promise, arguments);
EXCEPTION_ASSERT(!scope.exception() || vm.hasPendingTerminationException());
return scope.exception() ? IsCallbackRegistered::No : IsCallbackRegistered::Yes;
}
JSC::JSValue DOMPromise::result() const
{
return promise()->result(m_globalObject->vm());
}
DOMPromise::Status DOMPromise::status() const
{
switch (promise()->status(m_globalObject->vm())) {
case JSC::JSPromise::Status::Pending:
return Status::Pending;
case JSC::JSPromise::Status::Fulfilled:
return Status::Fulfilled;
case JSC::JSPromise::Status::Rejected:
return Status::Rejected;
};
ASSERT_NOT_REACHED();
return Status::Rejected;
}
}
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