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authorGravatar Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com> 2022-06-22 23:21:48 -0700
committerGravatar Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com> 2022-06-22 23:21:48 -0700
commit729d445b6885f69dd2c6355f38707bd42851c791 (patch)
treef87a7c408929ea3f57bbb7ace380cf869da83c0e /src/bun.js/bindings/webcore/JSDOMConvertPromise.h
parent25f820c6bf1d8ec6d444ef579cc036b8c0607b75 (diff)
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+/*
+ * Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>.
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include "IDLTypes.h"
+#include "JSDOMConvertBase.h"
+#include "JSDOMPromise.h"
+// #include "WorkerGlobalScope.h"
+
+namespace WebCore {
+
+template<typename T> struct Converter<IDLPromise<T>> : DefaultConverter<IDLPromise<T>> {
+ using ReturnType = RefPtr<DOMPromise>;
+
+ // https://webidl.spec.whatwg.org/#es-promise
+ template<typename ExceptionThrower = DefaultExceptionThrower>
+ static ReturnType convert(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSValue value, ExceptionThrower&& exceptionThrower = ExceptionThrower())
+ {
+ JSC::VM& vm = JSC::getVM(&lexicalGlobalObject);
+ auto scope = DECLARE_THROW_SCOPE(vm);
+ auto* globalObject = JSC::jsDynamicCast<JSDOMGlobalObject*>(&lexicalGlobalObject);
+ if (!globalObject)
+ return nullptr;
+
+ // 1. Let resolve be the original value of %Promise%.resolve.
+ // 2. Let promise be the result of calling resolve with %Promise% as the this value and V as the single argument value.
+ auto* promise = JSC::JSPromise::resolvedPromise(globalObject, value);
+ if (scope.exception()) {
+ auto* scriptExecutionContext = globalObject->scriptExecutionContext();
+ // if (is<WorkerGlobalScope>(scriptExecutionContext)) {
+ // auto* scriptController = downcast<WorkerGlobalScope>(*scriptExecutionContext).script();
+ // bool terminatorCausedException = vm.isTerminationException(scope.exception());
+ // if (terminatorCausedException || (scriptController && scriptController->isTerminatingExecution())) {
+ // scriptController->forbidExecution();
+ // return nullptr;
+ // }
+ // }
+ exceptionThrower(lexicalGlobalObject, scope);
+ return nullptr;
+ }
+ ASSERT(promise);
+
+ // 3. Return the IDL promise type value that is a reference to the same object as promise.
+ return DOMPromise::create(*globalObject, *promise);
+ }
+};
+
+template<typename T> struct JSConverter<IDLPromise<T>> {
+ static constexpr bool needsState = true;
+ static constexpr bool needsGlobalObject = true;
+
+ static JSC::JSValue convert(JSC::JSGlobalObject&, JSDOMGlobalObject&, DOMPromise& promise)
+ {
+ return promise.promise();
+ }
+
+ template<template<typename> class U>
+ static JSC::JSValue convert(JSC::JSGlobalObject& lexicalGlobalObject, JSDOMGlobalObject& globalObject, U<T>& promiseProxy)
+ {
+ return promiseProxy.promise(lexicalGlobalObject, globalObject);
+ }
+};
+
+} // namespace WebCore