JSValue JSWebNfc::requestAdapter(ExecState* exec)
{
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper* deferredWrapper = new DeferredWrapper(exec, globalObject(), promiseDeferred);
impl().requestAdapter(deferredWrapper);
return promiseDeferred->promise();
}
JSValue JSSubtleCrypto::exportKey(ExecState* exec)
{
if (exec->argumentCount() < 2)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
CryptoKeyFormat keyFormat;
if (!cryptoKeyFormatFromJSValue(exec, exec->argument(0), keyFormat)) {
ASSERT(exec->hadException());
return jsUndefined();
}
RefPtr<CryptoKey> key = JSCryptoKey::toWrapped(exec->uncheckedArgument(1));
if (!key)
return throwTypeError(exec);
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
auto successCallback = [wrapper](const Vector<uint8_t>& result) mutable {
wrapper.resolve(result);
};
auto failureCallback = [wrapper]() mutable {
wrapper.reject(nullptr);
};
WebCore::exportKey(exec, keyFormat, *key, WTF::move(successCallback), WTF::move(failureCallback));
if (exec->hadException())
return jsUndefined();
return promiseDeferred->promise();
}
EncodedJSValue JSC_HOST_CALL JSPromiseConstructorFuncReject(ExecState* exec)
{
// -- Promise.reject(x) --
JSValue r = exec->argument(0);
// 1. Let 'C' be the this value.
JSValue C = exec->thisValue();
// 2. Let 'deferred' be the result of calling GetDeferred(C).
JSValue deferredValue = createJSPromiseDeferredFromConstructor(exec, C);
// 3. ReturnIfAbrupt(deferred).
if (exec->hadException())
return JSValue::encode(jsUndefined());
JSPromiseDeferred* deferred = jsCast<JSPromiseDeferred*>(deferredValue);
// 4. Let 'rejectResult' be the result of calling the [[Call]] internal method
// of deferred.[[Reject]] with undefined as thisArgument and a List containing r
// as argumentsList.
performDeferredReject(exec, deferred, r);
// 5. ReturnIfAbrupt(resolveResult).
if (exec->hadException())
return JSValue::encode(jsUndefined());
// 6. Return deferred.[[Promise]].
return JSValue::encode(deferred->promise());
}
JSValue JSMediaDevices::getUserMedia(ExecState* exec)
{
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
Dictionary options(exec, exec->argument(0));
if (exec->hadException()) {
Exception* exception = exec->exception();
exec->clearException();
wrapper.reject(exception->value());
return promiseDeferred->promise();
}
if (!options.isObject()) {
JSValue error = createTypeError(exec, "First argument of getUserMedia must be a valid Dictionary");
wrapper.reject(error);
return promiseDeferred->promise();
}
auto resolveCallback = [wrapper](MediaStream& stream) mutable {
wrapper.resolve(&stream);
};
auto rejectCallback = [wrapper](NavigatorUserMediaError& error) mutable {
wrapper.reject(&error);
};
ExceptionCode ec = 0;
impl().getUserMedia(options, WTF::move(resolveCallback), WTF::move(rejectCallback), ec);
if (ec)
wrapper.reject(ec);
return promiseDeferred->promise();
}
JSValue JSSubtleCrypto::verify(ExecState* exec)
{
if (exec->argumentCount() < 4)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
auto algorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(0));
if (!algorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
auto parameters = JSCryptoAlgorithmDictionary::createParametersForVerify(exec, algorithm->identifier(), exec->uncheckedArgument(0));
if (!parameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
RefPtr<CryptoKey> key = JSCryptoKey::toWrapped(exec->uncheckedArgument(1));
if (!key)
return throwTypeError(exec);
if (!key->allows(CryptoKeyUsageVerify)) {
m_impl->document()->addConsoleMessage(MessageSource::JS, MessageLevel::Error, ASCIILiteral("Key usages do not include 'verify'"));
setDOMException(exec, NOT_SUPPORTED_ERR);
return jsUndefined();
}
CryptoOperationData signature;
if (!cryptoOperationDataFromJSValue(exec, exec->uncheckedArgument(2), signature)) {
ASSERT(exec->hadException());
return jsUndefined();
}
CryptoOperationData data;
if (!cryptoOperationDataFromJSValue(exec, exec->uncheckedArgument(3), data)) {
ASSERT(exec->hadException());
return jsUndefined();
}
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
auto successCallback = [wrapper](bool result) mutable {
wrapper.resolve(result);
};
auto failureCallback = [wrapper]() mutable {
wrapper.reject(nullptr);
};
ExceptionCode ec = 0;
algorithm->verify(*parameters, *key, signature, data, WTF::move(successCallback), WTF::move(failureCallback), ec);
if (ec) {
setDOMException(exec, ec);
return jsUndefined();
}
return promiseDeferred->promise();
}
JSValue JSSubtleCrypto::generateKey(ExecState* exec)
{
if (exec->argumentCount() < 1)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
auto algorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(0));
if (!algorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
auto parameters = JSCryptoAlgorithmDictionary::createParametersForGenerateKey(exec, algorithm->identifier(), exec->uncheckedArgument(0));
if (!parameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
bool extractable = false;
if (exec->argumentCount() >= 2) {
extractable = exec->uncheckedArgument(1).toBoolean(exec);
if (exec->hadException())
return jsUndefined();
}
CryptoKeyUsage keyUsages = 0;
if (exec->argumentCount() >= 3) {
if (!cryptoKeyUsagesFromJSValue(exec, exec->argument(2), keyUsages)) {
ASSERT(exec->hadException());
return jsUndefined();
}
}
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
auto successCallback = [wrapper](CryptoKey* key, CryptoKeyPair* keyPair) mutable {
ASSERT(key || keyPair);
ASSERT(!key || !keyPair);
if (key)
wrapper.resolve(key);
else
wrapper.resolve(keyPair);
};
auto failureCallback = [wrapper]() mutable {
wrapper.reject(nullptr);
};
ExceptionCode ec = 0;
algorithm->generateKey(*parameters, extractable, keyUsages, WTF::move(successCallback), WTF::move(failureCallback), ec);
if (ec) {
setDOMException(exec, ec);
return jsUndefined();
}
return promiseDeferred->promise();
}
EncodedJSValue JSC_HOST_CALL JSPromiseConstructorFuncRace(ExecState* exec)
{
// -- Promise.race(iterable) --
JSValue iterable = exec->argument(0);
VM& vm = exec->vm();
// 1. Let 'C' be the this value.
JSValue C = exec->thisValue();
// 2. Let 'deferred' be the result of calling GetDeferred(C).
JSValue deferredValue = createJSPromiseDeferredFromConstructor(exec, C);
// 3. ReturnIfAbrupt(deferred).
if (exec->hadException())
return JSValue::encode(jsUndefined());
JSPromiseDeferred* deferred = jsCast<JSPromiseDeferred*>(deferredValue);
// 4. Let 'iterator' be the result of calling GetIterator(iterable).
JSValue iteratorFunction = iterable.get(exec, vm.propertyNames->iteratorSymbol);
if (exec->hadException())
return JSValue::encode(abruptRejection(exec, deferred));
CallData iteratorFunctionCallData;
CallType iteratorFunctionCallType = getCallData(iteratorFunction, iteratorFunctionCallData);
if (iteratorFunctionCallType == CallTypeNone) {
throwTypeError(exec);
return JSValue::encode(abruptRejection(exec, deferred));
}
ArgList iteratorFunctionArguments;
JSValue iterator = call(exec, iteratorFunction, iteratorFunctionCallType, iteratorFunctionCallData, iterable, iteratorFunctionArguments);
// 5. RejectIfAbrupt(iterator, deferred).
if (exec->hadException())
return JSValue::encode(abruptRejection(exec, deferred));
performPromiseRaceLoop(exec, iterator, deferred, C);
if (exec->hadException())
iteratorClose(exec, iterator);
if (exec->hadException())
return JSValue::encode(abruptRejection(exec, deferred));
return JSValue::encode(deferred->promise());
}
EncodedJSValue JSC_HOST_CALL webAssemblyCompileFunc(ExecState* exec)
{
VM& vm = exec->vm();
auto catchScope = DECLARE_CATCH_SCOPE(vm);
JSPromiseDeferred* promise = JSPromiseDeferred::create(exec, exec->lexicalGlobalObject());
RETURN_IF_EXCEPTION(catchScope, encodedJSValue());
// FIXME: Make this truly asynchronous:
// https://bugs.webkit.org/show_bug.cgi?id=166016
JSValue module = WebAssemblyModuleConstructor::createModule(exec, exec->lexicalGlobalObject()->WebAssemblyModuleStructure());
if (Exception* exception = catchScope.exception()) {
catchScope.clearException();
promise->reject(exec, exception);
return JSValue::encode(promise->promise());
}
promise->resolve(exec, module);
return JSValue::encode(promise->promise());
}
JSValue JSSubtleCrypto::digest(ExecState* exec)
{
if (exec->argumentCount() < 2)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
auto algorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(0));
if (!algorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
auto parameters = JSCryptoAlgorithmDictionary::createParametersForDigest(exec, algorithm->identifier(), exec->uncheckedArgument(0));
if (!parameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
CryptoOperationData data;
if (!cryptoOperationDataFromJSValue(exec, exec->uncheckedArgument(1), data)) {
ASSERT(exec->hadException());
return jsUndefined();
}
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
auto successCallback = [wrapper](const Vector<uint8_t>& result) mutable {
wrapper.resolve(result);
};
auto failureCallback = [wrapper]() mutable {
wrapper.reject(nullptr);
};
ExceptionCode ec = 0;
algorithm->digest(*parameters, data, WTF::move(successCallback), WTF::move(failureCallback), ec);
if (ec) {
setDOMException(exec, ec);
return jsUndefined();
}
return promiseDeferred->promise();
}
EncodedJSValue JSC_HOST_CALL JSPromiseConstructorFuncResolve(ExecState* exec)
{
// -- Promise.resolve(x) --
JSValue x = exec->argument(0);
// 1. Let 'C' be the this value.
JSValue C = exec->thisValue();
// 2. If IsPromise(x) is true,
JSPromise* promise = jsDynamicCast<JSPromise*>(x);
if (promise) {
// i. Let 'constructor' be the value of x's [[PromiseConstructor]] internal slot.
JSValue constructor = promise->constructor();
// ii. If SameValue(constructor, C) is true, return x.
if (sameValue(exec, constructor, C))
return JSValue::encode(x);
}
// 3. Let 'deferred' be the result of calling GetDeferred(C).
JSValue deferredValue = createJSPromiseDeferredFromConstructor(exec, C);
// 4. ReturnIfAbrupt(deferred).
if (exec->hadException())
return JSValue::encode(jsUndefined());
JSPromiseDeferred* deferred = jsCast<JSPromiseDeferred*>(deferredValue);
// 5. Let 'resolveResult' be the result of calling the [[Call]] internal method
// of deferred.[[Resolve]] with undefined as thisArgument and a List containing x
// as argumentsList.
performDeferredResolve(exec, deferred, x);
// 6. ReturnIfAbrupt(resolveResult).
if (exec->hadException())
return JSValue::encode(jsUndefined());
// 7. Return deferred.[[Promise]].
return JSValue::encode(deferred->promise());
}
JSValue JSSubtleCrypto::unwrapKey(ExecState* exec)
{
if (exec->argumentCount() < 5)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
CryptoKeyFormat keyFormat;
if (!cryptoKeyFormatFromJSValue(exec, exec->argument(0), keyFormat)) {
ASSERT(exec->hadException());
return jsUndefined();
}
CryptoOperationData wrappedKeyData;
if (!cryptoOperationDataFromJSValue(exec, exec->uncheckedArgument(1), wrappedKeyData)) {
ASSERT(exec->hadException());
return jsUndefined();
}
RefPtr<CryptoKey> unwrappingKey = JSCryptoKey::toWrapped(exec->uncheckedArgument(2));
if (!unwrappingKey)
return throwTypeError(exec);
if (!unwrappingKey->allows(CryptoKeyUsageUnwrapKey)) {
m_impl->document()->addConsoleMessage(MessageSource::JS, MessageLevel::Error, ASCIILiteral("Key usages do not include 'unwrapKey'"));
setDOMException(exec, NOT_SUPPORTED_ERR);
return jsUndefined();
}
std::unique_ptr<CryptoAlgorithm> unwrapAlgorithm;
std::unique_ptr<CryptoAlgorithmParameters> unwrapAlgorithmParameters;
unwrapAlgorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(3));
if (!unwrapAlgorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
unwrapAlgorithmParameters = JSCryptoAlgorithmDictionary::createParametersForDecrypt(exec, unwrapAlgorithm->identifier(), exec->uncheckedArgument(3));
if (!unwrapAlgorithmParameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
std::unique_ptr<CryptoAlgorithm> unwrappedKeyAlgorithm;
std::unique_ptr<CryptoAlgorithmParameters> unwrappedKeyAlgorithmParameters;
if (!exec->uncheckedArgument(4).isNull()) {
unwrappedKeyAlgorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(4));
if (!unwrappedKeyAlgorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
unwrappedKeyAlgorithmParameters = JSCryptoAlgorithmDictionary::createParametersForImportKey(exec, unwrappedKeyAlgorithm->identifier(), exec->uncheckedArgument(4));
if (!unwrappedKeyAlgorithmParameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
}
bool extractable = false;
if (exec->argumentCount() >= 6) {
extractable = exec->uncheckedArgument(5).toBoolean(exec);
if (exec->hadException())
return jsUndefined();
}
CryptoKeyUsage keyUsages = 0;
if (exec->argumentCount() >= 7) {
if (!cryptoKeyUsagesFromJSValue(exec, exec->argument(6), keyUsages)) {
ASSERT(exec->hadException());
return jsUndefined();
}
}
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
Strong<JSDOMGlobalObject> domGlobalObject(exec->vm(), globalObject());
CryptoAlgorithm* unwrappedKeyAlgorithmPtr = unwrappedKeyAlgorithm.release();
CryptoAlgorithmParameters* unwrappedKeyAlgorithmParametersPtr = unwrappedKeyAlgorithmParameters.release();
auto decryptSuccessCallback = [domGlobalObject, keyFormat, unwrappedKeyAlgorithmPtr, unwrappedKeyAlgorithmParametersPtr, extractable, keyUsages, wrapper](const Vector<uint8_t>& result) mutable {
auto importSuccessCallback = [wrapper](CryptoKey& key) mutable {
wrapper.resolve(&key);
};
auto importFailureCallback = [wrapper]() mutable {
wrapper.reject(nullptr);
};
ExecState* exec = domGlobalObject->globalExec();
WebCore::importKey(exec, keyFormat, std::make_pair(result.data(), result.size()), std::unique_ptr<CryptoAlgorithm>(unwrappedKeyAlgorithmPtr), std::unique_ptr<CryptoAlgorithmParameters>(unwrappedKeyAlgorithmParametersPtr), extractable, keyUsages, WTF::move(importSuccessCallback), WTF::move(importFailureCallback));
if (exec->hadException()) {
// FIXME: Report exception details to console, and possibly to calling script once there is a standardized way to pass errors to WebCrypto promise reject functions.
exec->clearException();
importFailureCallback();
}
};
auto decryptFailureCallback = [wrapper, unwrappedKeyAlgorithmPtr, unwrappedKeyAlgorithmParametersPtr]() mutable {
delete unwrappedKeyAlgorithmPtr;
delete unwrappedKeyAlgorithmParametersPtr;
wrapper.reject(nullptr);
};
ExceptionCode ec = 0;
unwrapAlgorithm->decryptForUnwrapKey(*unwrapAlgorithmParameters, *unwrappingKey, wrappedKeyData, WTF::move(decryptSuccessCallback), WTF::move(decryptFailureCallback), ec);
if (ec) {
delete unwrappedKeyAlgorithmPtr;
delete unwrappedKeyAlgorithmParametersPtr;
setDOMException(exec, ec);
return jsUndefined();
}
return promiseDeferred->promise();
}
JSValue JSSubtleCrypto::wrapKey(ExecState* exec)
{
if (exec->argumentCount() < 4)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
CryptoKeyFormat keyFormat;
if (!cryptoKeyFormatFromJSValue(exec, exec->argument(0), keyFormat)) {
ASSERT(exec->hadException());
return jsUndefined();
}
RefPtr<CryptoKey> key = JSCryptoKey::toWrapped(exec->uncheckedArgument(1));
if (!key)
return throwTypeError(exec);
RefPtr<CryptoKey> wrappingKey = JSCryptoKey::toWrapped(exec->uncheckedArgument(2));
if (!key)
return throwTypeError(exec);
if (!wrappingKey->allows(CryptoKeyUsageWrapKey)) {
m_impl->document()->addConsoleMessage(MessageSource::JS, MessageLevel::Error, ASCIILiteral("Key usages do not include 'wrapKey'"));
setDOMException(exec, NOT_SUPPORTED_ERR);
return jsUndefined();
}
auto algorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(3));
if (!algorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
auto parameters = JSCryptoAlgorithmDictionary::createParametersForEncrypt(exec, algorithm->identifier(), exec->uncheckedArgument(3));
if (!parameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
CryptoAlgorithm* algorithmPtr = algorithm.release();
CryptoAlgorithmParameters* parametersPtr = parameters.release();
auto exportSuccessCallback = [keyFormat, algorithmPtr, parametersPtr, wrappingKey, wrapper](const Vector<uint8_t>& exportedKeyData) mutable {
auto encryptSuccessCallback = [wrapper, algorithmPtr, parametersPtr](const Vector<uint8_t>& encryptedData) mutable {
delete algorithmPtr;
delete parametersPtr;
wrapper.resolve(encryptedData);
};
auto encryptFailureCallback = [wrapper, algorithmPtr, parametersPtr]() mutable {
delete algorithmPtr;
delete parametersPtr;
wrapper.reject(nullptr);
};
ExceptionCode ec = 0;
algorithmPtr->encryptForWrapKey(*parametersPtr, *wrappingKey, std::make_pair(exportedKeyData.data(), exportedKeyData.size()), WTF::move(encryptSuccessCallback), WTF::move(encryptFailureCallback), ec);
if (ec) {
// FIXME: Report failure details to console, and possibly to calling script once there is a standardized way to pass errors to WebCrypto promise reject functions.
encryptFailureCallback();
}
};
auto exportFailureCallback = [wrapper, algorithmPtr, parametersPtr]() mutable {
delete algorithmPtr;
delete parametersPtr;
wrapper.reject(nullptr);
};
ExceptionCode ec = 0;
WebCore::exportKey(exec, keyFormat, *key, WTF::move(exportSuccessCallback), WTF::move(exportFailureCallback));
if (ec) {
delete algorithmPtr;
delete parametersPtr;
setDOMException(exec, ec);
return jsUndefined();
}
return promiseDeferred->promise();
}
JSValue JSSubtleCrypto::importKey(ExecState* exec)
{
if (exec->argumentCount() < 3)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
CryptoKeyFormat keyFormat;
if (!cryptoKeyFormatFromJSValue(exec, exec->argument(0), keyFormat)) {
ASSERT(exec->hadException());
return jsUndefined();
}
CryptoOperationData data;
if (!cryptoOperationDataFromJSValue(exec, exec->uncheckedArgument(1), data)) {
ASSERT(exec->hadException());
return jsUndefined();
}
std::unique_ptr<CryptoAlgorithm> algorithm;
std::unique_ptr<CryptoAlgorithmParameters> parameters;
if (!exec->uncheckedArgument(2).isNull()) {
algorithm = createAlgorithmFromJSValue(exec, exec->uncheckedArgument(2));
if (!algorithm) {
ASSERT(exec->hadException());
return jsUndefined();
}
parameters = JSCryptoAlgorithmDictionary::createParametersForImportKey(exec, algorithm->identifier(), exec->uncheckedArgument(2));
if (!parameters) {
ASSERT(exec->hadException());
return jsUndefined();
}
}
bool extractable = false;
if (exec->argumentCount() >= 4) {
extractable = exec->uncheckedArgument(3).toBoolean(exec);
if (exec->hadException())
return jsUndefined();
}
CryptoKeyUsage keyUsages = 0;
if (exec->argumentCount() >= 5) {
if (!cryptoKeyUsagesFromJSValue(exec, exec->argument(4), keyUsages)) {
ASSERT(exec->hadException());
return jsUndefined();
}
}
JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);
auto successCallback = [wrapper](CryptoKey& result) mutable {
wrapper.resolve(&result);
};
auto failureCallback = [wrapper]() mutable {
wrapper.reject(nullptr);
};
WebCore::importKey(exec, keyFormat, data, WTF::move(algorithm), WTF::move(parameters), extractable, keyUsages, WTF::move(successCallback), WTF::move(failureCallback));
if (exec->hadException())
return jsUndefined();
return promiseDeferred->promise();
}
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;
}
static EncodedJSValue JSC_HOST_CALL promiseResolutionHandlerFunction(ExecState* exec)
{
JSValue x = exec->argument(0);
VM& vm = exec->vm();
JSObject* F = exec->callee();
// 1. Let 'promise' be the value of F's [[Promise]] internal slot
JSPromise* promise = jsCast<JSPromise*>(F->get(exec, vm.propertyNames->promisePrivateName));
// 2. Let 'fulfillmentHandler' be the value of F's [[FulfillmentHandler]] internal slot.
JSValue fulfillmentHandler = F->get(exec, vm.propertyNames->fulfillmentHandlerPrivateName);
// 3. Let 'rejectionHandler' be the value of F's [[RejectionHandler]] internal slot.
JSValue rejectionHandler = F->get(exec, vm.propertyNames->rejectionHandlerPrivateName);
// 4. If SameValue(x, promise) is true,
if (sameValue(exec, x, promise)) {
// i. Let 'selfResolutionError' be a newly-created TypeError object.
JSObject* selfResolutionError = createTypeError(exec, ASCIILiteral("Resolve a promise with itself"));
// ii. Return the result of calling the [[Call]] internal method of rejectionHandler with
// undefined as thisArgument and a List containing selfResolutionError as argumentsList.
CallData rejectCallData;
CallType rejectCallType = getCallData(rejectionHandler, rejectCallData);
ASSERT(rejectCallType != CallTypeNone);
MarkedArgumentBuffer rejectArguments;
rejectArguments.append(selfResolutionError);
return JSValue::encode(call(exec, rejectionHandler, rejectCallType, rejectCallData, jsUndefined(), rejectArguments));
}
// 5. Let 'C' be the value of promise's [[PromiseConstructor]] internal slot.
JSValue C = promise->constructor();
// 6. Let 'deferred' be the result of calling GetDeferred(C)
JSValue deferredValue = createJSPromiseDeferredFromConstructor(exec, C);
// 7. ReturnIfAbrupt(deferred).
if (exec->hadException())
return JSValue::encode(jsUndefined());
JSPromiseDeferred* deferred = jsCast<JSPromiseDeferred*>(deferredValue);
// 8. Let 'updateResult' be the result of calling UpdateDeferredFromPotentialThenable(x, deferred).
ThenableStatus updateResult = updateDeferredFromPotentialThenable(exec, x, deferred);
// 9. ReturnIfAbrupt(updateResult).
if (exec->hadException())
return JSValue::encode(jsUndefined());
// 10. If 'updateResult' is not "not a thenable", return the result of calling
// Invoke(deferred.[[Promise]], "then", (fulfillmentHandler, rejectionHandler)).
// NOTE: Invoke does not seem to be defined anywhere, so I am guessing here.
if (updateResult != NotAThenable) {
JSObject* deferredPromise = deferred->promise();
JSValue thenValue = deferredPromise->get(exec, exec->vm().propertyNames->then);
if (exec->hadException())
return JSValue::encode(jsUndefined());
CallData thenCallData;
CallType thenCallType = getCallData(thenValue, thenCallData);
if (thenCallType == CallTypeNone)
return JSValue::encode(throwTypeError(exec));
MarkedArgumentBuffer arguments;
arguments.append(fulfillmentHandler);
arguments.append(rejectionHandler);
return JSValue::encode(call(exec, thenValue, thenCallType, thenCallData, deferredPromise, arguments));
}
// 11. Return the result of calling the [[Call]] internal method of fulfillmentHandler
// with undefined as thisArgument and a List containing x as argumentsList.
CallData fulfillmentHandlerCallData;
CallType fulfillmentHandlerCallType = getCallData(fulfillmentHandler, fulfillmentHandlerCallData);
ASSERT(fulfillmentHandlerCallType != CallTypeNone);
MarkedArgumentBuffer fulfillmentHandlerArguments;
fulfillmentHandlerArguments.append(x);
return JSValue::encode(call(exec, fulfillmentHandler, fulfillmentHandlerCallType, fulfillmentHandlerCallData, jsUndefined(), fulfillmentHandlerArguments));
}