[web standards] Add `CloseEvent` from WebKit

9 files changed, 636 insertions, 6 deletions

diff --git a/src/javascript/jsc/bindings/webcore/CloseEvent.cpp b/src/javascript/jsc/bindings/webcore/CloseEvent.cpp
new file mode 100644
index 000000000..7d0522adb
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/CloseEvent.cpp
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2019 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. ``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
+ * 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 "root.h"
+#include "CloseEvent.h"
+
+// #include <wtf/IsoMallocInlines.h>
+
+namespace WebCore {
+
+WTF_MAKE_ISO_ALLOCATED_IMPL(CloseEvent);
+
+} // namespace WebCore
diff --git a/src/javascript/jsc/bindings/webcore/CloseEvent.h b/src/javascript/jsc/bindings/webcore/CloseEvent.h
new file mode 100644
index 000000000..6681727f6
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/CloseEvent.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2011 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER OR 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 "root.h"
+#include "Event.h"
+#include "EventNames.h"
+
+namespace WebCore {
+
+class CloseEvent final : public Event {
+    WTF_MAKE_ISO_ALLOCATED(CloseEvent);
+
+public:
+    static Ref<CloseEvent> create(bool wasClean, unsigned short code, const String& reason)
+    {
+        return adoptRef(*new CloseEvent(wasClean, code, reason));
+    }
+
+    struct Init : EventInit {
+        bool wasClean { false };
+        unsigned short code { 0 };
+        String reason;
+    };
+
+    static Ref<CloseEvent> create(const AtomString& type, const Init& initializer, IsTrusted isTrusted = IsTrusted::No)
+    {
+        return adoptRef(*new CloseEvent(type, initializer, isTrusted));
+    }
+
+    bool wasClean() const { return m_wasClean; }
+    unsigned short code() const { return m_code; }
+    String reason() const { return m_reason; }
+
+    // Event function.
+    EventInterface eventInterface() const override { return CloseEventInterfaceType; }
+
+private:
+    CloseEvent(bool wasClean, int code, const String& reason)
+        : Event(eventNames().closeEvent, CanBubble::No, IsCancelable::No)
+        , m_wasClean(wasClean)
+        , m_code(code)
+        , m_reason(reason)
+    {
+    }
+
+    CloseEvent(const AtomString& type, const Init& initializer, IsTrusted isTrusted)
+        : Event(type, initializer, isTrusted)
+        , m_wasClean(initializer.wasClean)
+        , m_code(initializer.code)
+        , m_reason(initializer.reason)
+    {
+    }
+
+    bool m_wasClean;
+    unsigned short m_code;
+    String m_reason;
+};
+
+} // namespace WebCore
diff --git a/src/javascript/jsc/bindings/webcore/CloseEvent.idl b/src/javascript/jsc/bindings/webcore/CloseEvent.idl
new file mode 100644
index 000000000..acb852e46
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/CloseEvent.idl
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2011 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER OR 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.
+ */
+
+[
+    Exposed=(Window,Worker),
+] interface CloseEvent : Event {
+    constructor([AtomString] DOMString type, optional CloseEventInit eventInitDict);
+
+    readonly attribute boolean wasClean;
+    readonly attribute unsigned short code;
+    readonly attribute USVString reason;
+};
+
+dictionary CloseEventInit : EventInit {
+    boolean wasClean = false;
+    unsigned short code = 0;
+    USVString reason = "";
+};
diff --git a/src/javascript/jsc/bindings/webcore/DOMClientIsoSubspaces.h b/src/javascript/jsc/bindings/webcore/DOMClientIsoSubspaces.h
index 8cb65504f..d48ff8060 100644
--- a/src/javascript/jsc/bindings/webcore/DOMClientIsoSubspaces.h
+++ b/src/javascript/jsc/bindings/webcore/DOMClientIsoSubspaces.h
@@ -282,8 +282,8 @@ public:
     // std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForSQLResultSet;
     // std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForSQLResultSetRowList;
     // std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForSQLTransaction;
-    // std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForCloseEvent;
-    // std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForWebSocket;
+    std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForCloseEvent;
+    std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForWebSocket;
     // std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForWebXRBoundedReferenceSpace;
     // std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForWebXRFrame;
     // std::unique_ptr<GCClient::IsoSubspace> m_clientSubspaceForWebXRHand;
diff --git a/src/javascript/jsc/bindings/webcore/DOMIsoSubspaces.h b/src/javascript/jsc/bindings/webcore/DOMIsoSubspaces.h
index 5e74e4d43..2bc1626bb 100644
--- a/src/javascript/jsc/bindings/webcore/DOMIsoSubspaces.h
+++ b/src/javascript/jsc/bindings/webcore/DOMIsoSubspaces.h
@@ -272,8 +272,8 @@ public:
     // std::unique_ptr<IsoSubspace> m_subspaceForSQLResultSet;
     // std::unique_ptr<IsoSubspace> m_subspaceForSQLResultSetRowList;
     // std::unique_ptr<IsoSubspace> m_subspaceForSQLTransaction;
-    // std::unique_ptr<IsoSubspace> m_subspaceForCloseEvent;
-    // std::unique_ptr<IsoSubspace> m_subspaceForWebSocket;
+    std::unique_ptr<IsoSubspace> m_subspaceForCloseEvent;
+    std::unique_ptr<IsoSubspace> m_subspaceForWebSocket;
     // std::unique_ptr<IsoSubspace> m_subspaceForWebXRBoundedReferenceSpace;
     // std::unique_ptr<IsoSubspace> m_subspaceForWebXRFrame;
     // std::unique_ptr<IsoSubspace> m_subspaceForWebXRHand;
diff --git a/src/javascript/jsc/bindings/webcore/EventNames.h b/src/javascript/jsc/bindings/webcore/EventNames.h
index 3938d62ca..2f098998e 100644
--- a/src/javascript/jsc/bindings/webcore/EventNames.h
+++ b/src/javascript/jsc/bindings/webcore/EventNames.h
@@ -31,8 +31,8 @@ namespace WebCore {
 
 #define DOM_EVENT_NAMES_FOR_EACH(macro) \
     macro(error)                        \
-        macro(abort)
-//
+        macro(abort)                    \
+            macro(close)
 
 // macro(DOMActivate) \
     // macro(DOMCharacterDataModified) \
diff --git a/src/javascript/jsc/bindings/webcore/JSCloseEvent.cpp b/src/javascript/jsc/bindings/webcore/JSCloseEvent.cpp
new file mode 100644
index 000000000..6c86ed3b3
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/JSCloseEvent.cpp
@@ -0,0 +1,377 @@
+/*
+    This file is part of the WebKit open source project.
+    This file has been generated by generate-bindings.pl. DO NOT MODIFY!
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include "config.h"
+#include "JSCloseEvent.h"
+
+#include "ActiveDOMObject.h"
+#include "ExtendedDOMClientIsoSubspaces.h"
+#include "ExtendedDOMIsoSubspaces.h"
+#include "JSDOMAttribute.h"
+#include "JSDOMBinding.h"
+#include "JSDOMConstructor.h"
+#include "JSDOMConvertBoolean.h"
+#include "JSDOMConvertInterface.h"
+#include "JSDOMConvertNumbers.h"
+#include "JSDOMConvertStrings.h"
+#include "JSDOMExceptionHandling.h"
+#include "JSDOMGlobalObjectInlines.h"
+#include "JSDOMWrapperCache.h"
+#include "ScriptExecutionContext.h"
+#include "WebCoreJSClientData.h"
+#include <JavaScriptCore/HeapAnalyzer.h>
+#include <JavaScriptCore/JSCInlines.h>
+#include <JavaScriptCore/JSDestructibleObjectHeapCellType.h>
+#include <JavaScriptCore/SlotVisitorMacros.h>
+#include <JavaScriptCore/SubspaceInlines.h>
+#include <wtf/GetPtr.h>
+#include <wtf/PointerPreparations.h>
+#include <wtf/URL.h>
+
+namespace WebCore {
+using namespace JSC;
+
+template<> CloseEvent::Init convertDictionary<CloseEvent::Init>(JSGlobalObject& lexicalGlobalObject, JSValue value)
+{
+    VM& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    bool isNullOrUndefined = value.isUndefinedOrNull();
+    auto* object = isNullOrUndefined ? nullptr : value.getObject();
+    if (UNLIKELY(!isNullOrUndefined && !object)) {
+        throwTypeError(&lexicalGlobalObject, throwScope);
+        return {};
+    }
+    CloseEvent::Init result;
+    JSValue bubblesValue;
+    if (isNullOrUndefined)
+        bubblesValue = jsUndefined();
+    else {
+        bubblesValue = object->get(&lexicalGlobalObject, Identifier::fromString(vm, "bubbles"_s));
+        RETURN_IF_EXCEPTION(throwScope, {});
+    }
+    if (!bubblesValue.isUndefined()) {
+        result.bubbles = convert<IDLBoolean>(lexicalGlobalObject, bubblesValue);
+        RETURN_IF_EXCEPTION(throwScope, {});
+    } else
+        result.bubbles = false;
+    JSValue cancelableValue;
+    if (isNullOrUndefined)
+        cancelableValue = jsUndefined();
+    else {
+        cancelableValue = object->get(&lexicalGlobalObject, Identifier::fromString(vm, "cancelable"_s));
+        RETURN_IF_EXCEPTION(throwScope, {});
+    }
+    if (!cancelableValue.isUndefined()) {
+        result.cancelable = convert<IDLBoolean>(lexicalGlobalObject, cancelableValue);
+        RETURN_IF_EXCEPTION(throwScope, {});
+    } else
+        result.cancelable = false;
+    JSValue composedValue;
+    if (isNullOrUndefined)
+        composedValue = jsUndefined();
+    else {
+        composedValue = object->get(&lexicalGlobalObject, Identifier::fromString(vm, "composed"_s));
+        RETURN_IF_EXCEPTION(throwScope, {});
+    }
+    if (!composedValue.isUndefined()) {
+        result.composed = convert<IDLBoolean>(lexicalGlobalObject, composedValue);
+        RETURN_IF_EXCEPTION(throwScope, {});
+    } else
+        result.composed = false;
+    JSValue codeValue;
+    if (isNullOrUndefined)
+        codeValue = jsUndefined();
+    else {
+        codeValue = object->get(&lexicalGlobalObject, Identifier::fromString(vm, "code"_s));
+        RETURN_IF_EXCEPTION(throwScope, {});
+    }
+    if (!codeValue.isUndefined()) {
+        result.code = convert<IDLUnsignedShort>(lexicalGlobalObject, codeValue);
+        RETURN_IF_EXCEPTION(throwScope, {});
+    } else
+        result.code = 0;
+    JSValue reasonValue;
+    if (isNullOrUndefined)
+        reasonValue = jsUndefined();
+    else {
+        reasonValue = object->get(&lexicalGlobalObject, Identifier::fromString(vm, "reason"_s));
+        RETURN_IF_EXCEPTION(throwScope, {});
+    }
+    if (!reasonValue.isUndefined()) {
+        result.reason = convert<IDLUSVString>(lexicalGlobalObject, reasonValue);
+        RETURN_IF_EXCEPTION(throwScope, {});
+    } else
+        result.reason = emptyString();
+    JSValue wasCleanValue;
+    if (isNullOrUndefined)
+        wasCleanValue = jsUndefined();
+    else {
+        wasCleanValue = object->get(&lexicalGlobalObject, Identifier::fromString(vm, "wasClean"_s));
+        RETURN_IF_EXCEPTION(throwScope, {});
+    }
+    if (!wasCleanValue.isUndefined()) {
+        result.wasClean = convert<IDLBoolean>(lexicalGlobalObject, wasCleanValue);
+        RETURN_IF_EXCEPTION(throwScope, {});
+    } else
+        result.wasClean = false;
+    return result;
+}
+
+// Attributes
+
+static JSC_DECLARE_CUSTOM_GETTER(jsCloseEventConstructor);
+static JSC_DECLARE_CUSTOM_GETTER(jsCloseEvent_wasClean);
+static JSC_DECLARE_CUSTOM_GETTER(jsCloseEvent_code);
+static JSC_DECLARE_CUSTOM_GETTER(jsCloseEvent_reason);
+
+class JSCloseEventPrototype final : public JSC::JSNonFinalObject {
+public:
+    using Base = JSC::JSNonFinalObject;
+    static JSCloseEventPrototype* create(JSC::VM& vm, JSDOMGlobalObject* globalObject, JSC::Structure* structure)
+    {
+        JSCloseEventPrototype* ptr = new (NotNull, JSC::allocateCell<JSCloseEventPrototype>(vm)) JSCloseEventPrototype(vm, globalObject, structure);
+        ptr->finishCreation(vm);
+        return ptr;
+    }
+
+    DECLARE_INFO;
+    template<typename CellType, JSC::SubspaceAccess>
+    static JSC::GCClient::IsoSubspace* subspaceFor(JSC::VM& vm)
+    {
+        STATIC_ASSERT_ISO_SUBSPACE_SHARABLE(JSCloseEventPrototype, Base);
+        return &vm.plainObjectSpace();
+    }
+    static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)
+    {
+        return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info());
+    }
+
+private:
+    JSCloseEventPrototype(JSC::VM& vm, JSC::JSGlobalObject*, JSC::Structure* structure)
+        : JSC::JSNonFinalObject(vm, structure)
+    {
+    }
+
+    void finishCreation(JSC::VM&);
+};
+STATIC_ASSERT_ISO_SUBSPACE_SHARABLE(JSCloseEventPrototype, JSCloseEventPrototype::Base);
+
+using JSCloseEventDOMConstructor = JSDOMConstructor<JSCloseEvent>;
+
+template<> EncodedJSValue JSC_HOST_CALL_ATTRIBUTES JSCloseEventDOMConstructor::construct(JSGlobalObject* lexicalGlobalObject, CallFrame* callFrame)
+{
+    VM& vm = lexicalGlobalObject->vm();
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto* castedThis = jsCast<JSCloseEventDOMConstructor*>(callFrame->jsCallee());
+    ASSERT(castedThis);
+    if (UNLIKELY(callFrame->argumentCount() < 1))
+        return throwVMError(lexicalGlobalObject, throwScope, createNotEnoughArgumentsError(lexicalGlobalObject));
+    EnsureStillAliveScope argument0 = callFrame->uncheckedArgument(0);
+    auto type = convert<IDLAtomStringAdaptor<IDLDOMString>>(*lexicalGlobalObject, argument0.value());
+    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
+    EnsureStillAliveScope argument1 = callFrame->argument(1);
+    auto eventInitDict = convert<IDLDictionary<CloseEvent::Init>>(*lexicalGlobalObject, argument1.value());
+    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
+    auto object = CloseEvent::create(WTFMove(type), WTFMove(eventInitDict));
+    if constexpr (IsExceptionOr<decltype(object)>)
+        RETURN_IF_EXCEPTION(throwScope, {});
+    static_assert(TypeOrExceptionOrUnderlyingType<decltype(object)>::isRef);
+    auto jsValue = toJSNewlyCreated<IDLInterface<CloseEvent>>(*lexicalGlobalObject, *castedThis->globalObject(), throwScope, WTFMove(object));
+    if constexpr (IsExceptionOr<decltype(object)>)
+        RETURN_IF_EXCEPTION(throwScope, {});
+    setSubclassStructureIfNeeded<CloseEvent>(lexicalGlobalObject, callFrame, asObject(jsValue));
+    RETURN_IF_EXCEPTION(throwScope, {});
+    return JSValue::encode(jsValue);
+}
+JSC_ANNOTATE_HOST_FUNCTION(JSCloseEventDOMConstructorConstruct, JSCloseEventDOMConstructor::construct);
+
+template<> const ClassInfo JSCloseEventDOMConstructor::s_info = { "CloseEvent"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSCloseEventDOMConstructor) };
+
+template<> JSValue JSCloseEventDOMConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
+{
+    return JSEvent::getConstructor(vm, &globalObject);
+}
+
+template<> void JSCloseEventDOMConstructor::initializeProperties(VM& vm, JSDOMGlobalObject& globalObject)
+{
+    putDirect(vm, vm.propertyNames->length, jsNumber(1), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum);
+    JSString* nameString = jsNontrivialString(vm, "CloseEvent"_s);
+    m_originalName.set(vm, this, nameString);
+    putDirect(vm, vm.propertyNames->name, nameString, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum);
+    putDirect(vm, vm.propertyNames->prototype, JSCloseEvent::prototype(vm, globalObject), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum | JSC::PropertyAttribute::DontDelete);
+}
+
+/* Hash table for prototype */
+
+static const HashTableValue JSCloseEventPrototypeTableValues[] = {
+    { "constructor"_s, static_cast<unsigned>(JSC::PropertyAttribute::DontEnum), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsCloseEventConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "wasClean"_s, static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsCloseEvent_wasClean), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "code"_s, static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsCloseEvent_code), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "reason"_s, static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsCloseEvent_reason), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+};
+
+const ClassInfo JSCloseEventPrototype::s_info = { "CloseEvent"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSCloseEventPrototype) };
+
+void JSCloseEventPrototype::finishCreation(VM& vm)
+{
+    Base::finishCreation(vm);
+    reifyStaticProperties(vm, JSCloseEvent::info(), JSCloseEventPrototypeTableValues, *this);
+    JSC_TO_STRING_TAG_WITHOUT_TRANSITION();
+}
+
+const ClassInfo JSCloseEvent::s_info = { "CloseEvent"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSCloseEvent) };
+
+JSCloseEvent::JSCloseEvent(Structure* structure, JSDOMGlobalObject& globalObject, Ref<CloseEvent>&& impl)
+    : JSEvent(structure, globalObject, WTFMove(impl))
+{
+}
+
+void JSCloseEvent::finishCreation(VM& vm)
+{
+    Base::finishCreation(vm);
+    ASSERT(inherits(info()));
+
+    // static_assert(!std::is_base_of<ActiveDOMObject, CloseEvent>::value, "Interface is not marked as [ActiveDOMObject] even though implementation class subclasses ActiveDOMObject.");
+}
+
+JSObject* JSCloseEvent::createPrototype(VM& vm, JSDOMGlobalObject& globalObject)
+{
+    return JSCloseEventPrototype::create(vm, &globalObject, JSCloseEventPrototype::createStructure(vm, &globalObject, JSEvent::prototype(vm, globalObject)));
+}
+
+JSObject* JSCloseEvent::prototype(VM& vm, JSDOMGlobalObject& globalObject)
+{
+    return getDOMPrototype<JSCloseEvent>(vm, globalObject);
+}
+
+JSValue JSCloseEvent::getConstructor(VM& vm, const JSGlobalObject* globalObject)
+{
+    return getDOMConstructor<JSCloseEventDOMConstructor, DOMConstructorID::CloseEvent>(vm, *jsCast<const JSDOMGlobalObject*>(globalObject));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsCloseEventConstructor, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName))
+{
+    VM& vm = JSC::getVM(lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto* prototype = jsDynamicCast<JSCloseEventPrototype*>(JSValue::decode(thisValue));
+    if (UNLIKELY(!prototype))
+        return throwVMTypeError(lexicalGlobalObject, throwScope);
+    return JSValue::encode(JSCloseEvent::getConstructor(JSC::getVM(lexicalGlobalObject), prototype->globalObject()));
+}
+
+static inline JSValue jsCloseEvent_wasCleanGetter(JSGlobalObject& lexicalGlobalObject, JSCloseEvent& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLBoolean>(lexicalGlobalObject, throwScope, impl.wasClean())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsCloseEvent_wasClean, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSCloseEvent>::get<jsCloseEvent_wasCleanGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsCloseEvent_codeGetter(JSGlobalObject& lexicalGlobalObject, JSCloseEvent& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnsignedShort>(lexicalGlobalObject, throwScope, impl.code())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsCloseEvent_code, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSCloseEvent>::get<jsCloseEvent_codeGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsCloseEvent_reasonGetter(JSGlobalObject& lexicalGlobalObject, JSCloseEvent& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUSVString>(lexicalGlobalObject, throwScope, impl.reason())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsCloseEvent_reason, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSCloseEvent>::get<jsCloseEvent_reasonGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+JSC::GCClient::IsoSubspace* JSCloseEvent::subspaceForImpl(JSC::VM& vm)
+{
+    return WebCore::subspaceForImpl<JSCloseEvent, UseCustomHeapCellType::No>(
+        vm,
+        [](auto& spaces) { return spaces.m_clientSubspaceForCloseEvent.get(); },
+        [](auto& spaces, auto&& space) { spaces.m_clientSubspaceForCloseEvent = WTFMove(space); },
+        [](auto& spaces) { return spaces.m_subspaceForCloseEvent.get(); },
+        [](auto& spaces, auto&& space) { spaces.m_subspaceForCloseEvent = WTFMove(space); });
+}
+
+void JSCloseEvent::analyzeHeap(JSCell* cell, HeapAnalyzer& analyzer)
+{
+    auto* thisObject = jsCast<JSCloseEvent*>(cell);
+    analyzer.setWrappedObjectForCell(cell, &thisObject->wrapped());
+    if (thisObject->scriptExecutionContext())
+        analyzer.setLabelForCell(cell, "url " + thisObject->scriptExecutionContext()->url().string());
+    Base::analyzeHeap(cell, analyzer);
+}
+
+#if ENABLE(BINDING_INTEGRITY)
+#if PLATFORM(WIN)
+#pragma warning(disable : 4483)
+extern "C" {
+extern void (*const __identifier("??_7CloseEvent@WebCore@@6B@")[])();
+}
+#else
+extern "C" {
+extern void* _ZTVN7WebCore10CloseEventE[];
+}
+#endif
+#endif
+
+JSC::JSValue toJSNewlyCreated(JSC::JSGlobalObject*, JSDOMGlobalObject* globalObject, Ref<CloseEvent>&& impl)
+{
+
+    if constexpr (std::is_polymorphic_v<CloseEvent>) {
+#if ENABLE(BINDING_INTEGRITY)
+        const void* actualVTablePointer = getVTablePointer(impl.ptr());
+#if PLATFORM(WIN)
+        void* expectedVTablePointer = __identifier("??_7CloseEvent@WebCore@@6B@");
+#else
+        void* expectedVTablePointer = &_ZTVN7WebCore10CloseEventE[2];
+#endif
+
+        // If you hit this assertion you either have a use after free bug, or
+        // CloseEvent has subclasses. If CloseEvent has subclasses that get passed
+        // to toJS() we currently require CloseEvent you to opt out of binding hardening
+        // by adding the SkipVTableValidation attribute to the interface IDL definition
+        RELEASE_ASSERT(actualVTablePointer == expectedVTablePointer);
+#endif
+    }
+    return createWrapper<CloseEvent>(globalObject, WTFMove(impl));
+}
+
+JSC::JSValue toJS(JSC::JSGlobalObject* lexicalGlobalObject, JSDOMGlobalObject* globalObject, CloseEvent& impl)
+{
+    return wrap(lexicalGlobalObject, globalObject, impl);
+}
+
+}
diff --git a/src/javascript/jsc/bindings/webcore/JSCloseEvent.dep b/src/javascript/jsc/bindings/webcore/JSCloseEvent.dep
new file mode 100644
index 000000000..25edceaab
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/JSCloseEvent.dep
@@ -0,0 +1,3 @@
+JSCloseEvent.h : Event.idl EventInit.idl
+Event.idl :
+EventInit.idl :
diff --git a/src/javascript/jsc/bindings/webcore/JSCloseEvent.h b/src/javascript/jsc/bindings/webcore/JSCloseEvent.h
new file mode 100644
index 000000000..d7f25493b
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/JSCloseEvent.h
@@ -0,0 +1,82 @@
+/*
+    This file is part of the WebKit open source project.
+    This file has been generated by generate-bindings.pl. DO NOT MODIFY!
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#pragma once
+
+#include "CloseEvent.h"
+#include "JSDOMConvertDictionary.h"
+#include "JSDOMWrapper.h"
+#include "JSEvent.h"
+
+namespace WebCore {
+
+class JSCloseEvent : public JSEvent {
+public:
+    using Base = JSEvent;
+    using DOMWrapped = CloseEvent;
+    static JSCloseEvent* create(JSC::Structure* structure, JSDOMGlobalObject* globalObject, Ref<CloseEvent>&& impl)
+    {
+        JSCloseEvent* ptr = new (NotNull, JSC::allocateCell<JSCloseEvent>(globalObject->vm())) JSCloseEvent(structure, *globalObject, WTFMove(impl));
+        ptr->finishCreation(globalObject->vm());
+        return ptr;
+    }
+
+    static JSC::JSObject* createPrototype(JSC::VM&, JSDOMGlobalObject&);
+    static JSC::JSObject* prototype(JSC::VM&, JSDOMGlobalObject&);
+
+    DECLARE_INFO;
+
+    static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)
+    {
+        return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::JSType(JSEventType), StructureFlags), info(), JSC::NonArray);
+    }
+
+    static JSC::JSValue getConstructor(JSC::VM&, const JSC::JSGlobalObject*);
+    template<typename, JSC::SubspaceAccess mode> static JSC::GCClient::IsoSubspace* subspaceFor(JSC::VM& vm)
+    {
+        if constexpr (mode == JSC::SubspaceAccess::Concurrently)
+            return nullptr;
+        return subspaceForImpl(vm);
+    }
+    static JSC::GCClient::IsoSubspace* subspaceForImpl(JSC::VM& vm);
+    static void analyzeHeap(JSCell*, JSC::HeapAnalyzer&);
+    CloseEvent& wrapped() const
+    {
+        return static_cast<CloseEvent&>(Base::wrapped());
+    }
+protected:
+    JSCloseEvent(JSC::Structure*, JSDOMGlobalObject&, Ref<CloseEvent>&&);
+
+    void finishCreation(JSC::VM&);
+};
+
+JSC::JSValue toJS(JSC::JSGlobalObject*, JSDOMGlobalObject*, CloseEvent&);
+inline JSC::JSValue toJS(JSC::JSGlobalObject* lexicalGlobalObject, JSDOMGlobalObject* globalObject, CloseEvent* impl) { return impl ? toJS(lexicalGlobalObject, globalObject, *impl) : JSC::jsNull(); }
+JSC::JSValue toJSNewlyCreated(JSC::JSGlobalObject*, JSDOMGlobalObject*, Ref<CloseEvent>&&);
+inline JSC::JSValue toJSNewlyCreated(JSC::JSGlobalObject* lexicalGlobalObject, JSDOMGlobalObject* globalObject, RefPtr<CloseEvent>&& impl) { return impl ? toJSNewlyCreated(lexicalGlobalObject, globalObject, impl.releaseNonNull()) : JSC::jsNull(); }
+
+template<> struct JSDOMWrapperConverterTraits<CloseEvent> {
+    using WrapperClass = JSCloseEvent;
+    using ToWrappedReturnType = CloseEvent*;
+};
+template<> CloseEvent::Init convertDictionary<CloseEvent::Init>(JSC::JSGlobalObject&, JSC::JSValue);
+
+
+} // namespace WebCore