wip

1 files changed, 426 insertions, 0 deletions

diff --git a/src/javascript/jsc/bindings/webcore/JSTextMetrics.cpp b/src/javascript/jsc/bindings/webcore/JSTextMetrics.cpp
new file mode 100644
index 000000000..5984ecc09
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/JSTextMetrics.cpp
@@ -0,0 +1,426 @@
+/*
+    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 "JSTextMetrics.h"
+
+#include "ActiveDOMObject.h"
+#include "ExtendedDOMClientIsoSubspaces.h"
+#include "ExtendedDOMIsoSubspaces.h"
+#include "JSDOMAttribute.h"
+#include "JSDOMBinding.h"
+#include "JSDOMConstructorNotConstructable.h"
+#include "JSDOMConvertNumbers.h"
+#include "JSDOMExceptionHandling.h"
+#include "JSDOMGlobalObjectInlines.h"
+#include "JSDOMWrapperCache.h"
+#include "ScriptExecutionContext.h"
+#include "WebCoreJSClientData.h"
+#include <JavaScriptCore/FunctionPrototype.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;
+
+// Attributes
+
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetricsConstructor);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_width);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_actualBoundingBoxLeft);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_actualBoundingBoxRight);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_fontBoundingBoxAscent);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_fontBoundingBoxDescent);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_actualBoundingBoxAscent);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_actualBoundingBoxDescent);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_emHeightAscent);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_emHeightDescent);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_hangingBaseline);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_alphabeticBaseline);
+static JSC_DECLARE_CUSTOM_GETTER(jsTextMetrics_ideographicBaseline);
+
+class JSTextMetricsPrototype final : public JSC::JSNonFinalObject {
+public:
+    using Base = JSC::JSNonFinalObject;
+    static JSTextMetricsPrototype* create(JSC::VM& vm, JSDOMGlobalObject* globalObject, JSC::Structure* structure)
+    {
+        JSTextMetricsPrototype* ptr = new (NotNull, JSC::allocateCell<JSTextMetricsPrototype>(vm)) JSTextMetricsPrototype(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(JSTextMetricsPrototype, 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:
+    JSTextMetricsPrototype(JSC::VM& vm, JSC::JSGlobalObject*, JSC::Structure* structure)
+        : JSC::JSNonFinalObject(vm, structure)
+    {
+    }
+
+    void finishCreation(JSC::VM&);
+};
+STATIC_ASSERT_ISO_SUBSPACE_SHARABLE(JSTextMetricsPrototype, JSTextMetricsPrototype::Base);
+
+using JSTextMetricsDOMConstructor = JSDOMConstructorNotConstructable<JSTextMetrics>;
+
+template<> const ClassInfo JSTextMetricsDOMConstructor::s_info = { "TextMetrics"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSTextMetricsDOMConstructor) };
+
+template<> JSValue JSTextMetricsDOMConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
+{
+    UNUSED_PARAM(vm);
+    return globalObject.functionPrototype();
+}
+
+template<> void JSTextMetricsDOMConstructor::initializeProperties(VM& vm, JSDOMGlobalObject& globalObject)
+{
+    putDirect(vm, vm.propertyNames->length, jsNumber(0), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum);
+    JSString* nameString = jsNontrivialString(vm, "TextMetrics"_s);
+    m_originalName.set(vm, this, nameString);
+    putDirect(vm, vm.propertyNames->name, nameString, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum);
+    putDirect(vm, vm.propertyNames->prototype, JSTextMetrics::prototype(vm, globalObject), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum | JSC::PropertyAttribute::DontDelete);
+}
+
+/* Hash table for prototype */
+
+static const HashTableValue JSTextMetricsPrototypeTableValues[] = {
+    { "constructor", static_cast<unsigned>(JSC::PropertyAttribute::DontEnum), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetricsConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "width", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_width), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "actualBoundingBoxLeft", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_actualBoundingBoxLeft), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "actualBoundingBoxRight", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_actualBoundingBoxRight), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "fontBoundingBoxAscent", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_fontBoundingBoxAscent), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "fontBoundingBoxDescent", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_fontBoundingBoxDescent), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "actualBoundingBoxAscent", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_actualBoundingBoxAscent), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "actualBoundingBoxDescent", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_actualBoundingBoxDescent), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "emHeightAscent", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_emHeightAscent), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "emHeightDescent", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_emHeightDescent), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "hangingBaseline", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_hangingBaseline), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "alphabeticBaseline", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_alphabeticBaseline), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+    { "ideographicBaseline", static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t) static_cast<PropertySlot::GetValueFunc>(jsTextMetrics_ideographicBaseline), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
+};
+
+const ClassInfo JSTextMetricsPrototype::s_info = { "TextMetrics"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSTextMetricsPrototype) };
+
+void JSTextMetricsPrototype::finishCreation(VM& vm)
+{
+    Base::finishCreation(vm);
+    reifyStaticProperties(vm, JSTextMetrics::info(), JSTextMetricsPrototypeTableValues, *this);
+    JSC_TO_STRING_TAG_WITHOUT_TRANSITION();
+}
+
+const ClassInfo JSTextMetrics::s_info = { "TextMetrics"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSTextMetrics) };
+
+JSTextMetrics::JSTextMetrics(Structure* structure, JSDOMGlobalObject& globalObject, Ref<TextMetrics>&& impl)
+    : JSDOMWrapper<TextMetrics>(structure, globalObject, WTFMove(impl))
+{
+}
+
+void JSTextMetrics::finishCreation(VM& vm)
+{
+    Base::finishCreation(vm);
+    ASSERT(inherits(vm, info()));
+
+    // static_assert(!std::is_base_of<ActiveDOMObject, TextMetrics>::value, "Interface is not marked as [ActiveDOMObject] even though implementation class subclasses ActiveDOMObject.");
+}
+
+JSObject* JSTextMetrics::createPrototype(VM& vm, JSDOMGlobalObject& globalObject)
+{
+    return JSTextMetricsPrototype::create(vm, &globalObject, JSTextMetricsPrototype::createStructure(vm, &globalObject, globalObject.objectPrototype()));
+}
+
+JSObject* JSTextMetrics::prototype(VM& vm, JSDOMGlobalObject& globalObject)
+{
+    return getDOMPrototype<JSTextMetrics>(vm, globalObject);
+}
+
+JSValue JSTextMetrics::getConstructor(VM& vm, const JSGlobalObject* globalObject)
+{
+    return getDOMConstructor<JSTextMetricsDOMConstructor, DOMConstructorID::TextMetrics>(vm, *jsCast<const JSDOMGlobalObject*>(globalObject));
+}
+
+void JSTextMetrics::destroy(JSC::JSCell* cell)
+{
+    JSTextMetrics* thisObject = static_cast<JSTextMetrics*>(cell);
+    thisObject->JSTextMetrics::~JSTextMetrics();
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetricsConstructor, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName))
+{
+    VM& vm = JSC::getVM(lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto* prototype = jsDynamicCast<JSTextMetricsPrototype*>(vm, JSValue::decode(thisValue));
+    if (UNLIKELY(!prototype))
+        return throwVMTypeError(lexicalGlobalObject, throwScope);
+    return JSValue::encode(JSTextMetrics::getConstructor(JSC::getVM(lexicalGlobalObject), prototype->globalObject()));
+}
+
+static inline JSValue jsTextMetrics_widthGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.width())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_width, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_widthGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_actualBoundingBoxLeftGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.actualBoundingBoxLeft())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_actualBoundingBoxLeft, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_actualBoundingBoxLeftGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_actualBoundingBoxRightGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.actualBoundingBoxRight())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_actualBoundingBoxRight, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_actualBoundingBoxRightGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_fontBoundingBoxAscentGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.fontBoundingBoxAscent())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_fontBoundingBoxAscent, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_fontBoundingBoxAscentGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_fontBoundingBoxDescentGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.fontBoundingBoxDescent())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_fontBoundingBoxDescent, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_fontBoundingBoxDescentGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_actualBoundingBoxAscentGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.actualBoundingBoxAscent())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_actualBoundingBoxAscent, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_actualBoundingBoxAscentGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_actualBoundingBoxDescentGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.actualBoundingBoxDescent())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_actualBoundingBoxDescent, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_actualBoundingBoxDescentGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_emHeightAscentGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.emHeightAscent())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_emHeightAscent, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_emHeightAscentGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_emHeightDescentGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.emHeightDescent())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_emHeightDescent, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_emHeightDescentGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_hangingBaselineGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.hangingBaseline())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_hangingBaseline, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_hangingBaselineGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_alphabeticBaselineGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.alphabeticBaseline())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_alphabeticBaseline, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_alphabeticBaselineGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+static inline JSValue jsTextMetrics_ideographicBaselineGetter(JSGlobalObject& lexicalGlobalObject, JSTextMetrics& thisObject)
+{
+    auto& vm = JSC::getVM(&lexicalGlobalObject);
+    auto throwScope = DECLARE_THROW_SCOPE(vm);
+    auto& impl = thisObject.wrapped();
+    RELEASE_AND_RETURN(throwScope, (toJS<IDLUnrestrictedFloat>(lexicalGlobalObject, throwScope, impl.ideographicBaseline())));
+}
+
+JSC_DEFINE_CUSTOM_GETTER(jsTextMetrics_ideographicBaseline, (JSGlobalObject * lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName))
+{
+    return IDLAttribute<JSTextMetrics>::get<jsTextMetrics_ideographicBaselineGetter, CastedThisErrorBehavior::Assert>(*lexicalGlobalObject, thisValue, attributeName);
+}
+
+JSC::GCClient::IsoSubspace* JSTextMetrics::subspaceForImpl(JSC::VM& vm)
+{
+    return WebCore::subspaceForImpl<JSTextMetrics, UseCustomHeapCellType::No>(
+        vm,
+        [](auto& spaces) { return spaces.m_clientSubspaceForTextMetrics.get(); },
+        [](auto& spaces, auto&& space) { spaces.m_clientSubspaceForTextMetrics = WTFMove(space); },
+        [](auto& spaces) { return spaces.m_subspaceForTextMetrics.get(); },
+        [](auto& spaces, auto&& space) { spaces.m_subspaceForTextMetrics = WTFMove(space); });
+}
+
+void JSTextMetrics::analyzeHeap(JSCell* cell, HeapAnalyzer& analyzer)
+{
+    auto* thisObject = jsCast<JSTextMetrics*>(cell);
+    analyzer.setWrappedObjectForCell(cell, &thisObject->wrapped());
+    if (thisObject->scriptExecutionContext())
+        analyzer.setLabelForCell(cell, "url " + thisObject->scriptExecutionContext()->url().string());
+    Base::analyzeHeap(cell, analyzer);
+}
+
+bool JSTextMetricsOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, AbstractSlotVisitor& visitor, const char** reason)
+{
+    UNUSED_PARAM(handle);
+    UNUSED_PARAM(visitor);
+    UNUSED_PARAM(reason);
+    return false;
+}
+
+void JSTextMetricsOwner::finalize(JSC::Handle<JSC::Unknown> handle, void* context)
+{
+    auto* jsTextMetrics = static_cast<JSTextMetrics*>(handle.slot()->asCell());
+    auto& world = *static_cast<DOMWrapperWorld*>(context);
+    uncacheWrapper(world, &jsTextMetrics->wrapped(), jsTextMetrics);
+}
+
+#if ENABLE(BINDING_INTEGRITY)
+#if PLATFORM(WIN)
+#pragma warning(disable : 4483)
+extern "C" {
+extern void (*const __identifier("??_7TextMetrics@WebCore@@6B@")[])();
+}
+#else
+extern "C" {
+extern void* _ZTVN7WebCore11TextMetricsE[];
+}
+#endif
+#endif
+
+JSC::JSValue toJSNewlyCreated(JSC::JSGlobalObject*, JSDOMGlobalObject* globalObject, Ref<TextMetrics>&& impl)
+{
+
+    if constexpr (std::is_polymorphic_v<TextMetrics>) {
+#if ENABLE(BINDING_INTEGRITY)
+        const void* actualVTablePointer = getVTablePointer(impl.ptr());
+#if PLATFORM(WIN)
+        void* expectedVTablePointer = __identifier("??_7TextMetrics@WebCore@@6B@");
+#else
+        void* expectedVTablePointer = &_ZTVN7WebCore11TextMetricsE[2];
+#endif
+
+        // If you hit this assertion you either have a use after free bug, or
+        // TextMetrics has subclasses. If TextMetrics has subclasses that get passed
+        // to toJS() we currently require TextMetrics you to opt out of binding hardening
+        // by adding the SkipVTableValidation attribute to the interface IDL definition
+        RELEASE_ASSERT(actualVTablePointer == expectedVTablePointer);
+#endif
+    }
+    return createWrapper<TextMetrics>(globalObject, WTFMove(impl));
+}
+
+JSC::JSValue toJS(JSC::JSGlobalObject* lexicalGlobalObject, JSDOMGlobalObject* globalObject, TextMetrics& impl)
+{
+    return wrap(lexicalGlobalObject, globalObject, impl);
+}
+
+TextMetrics* JSTextMetrics::toWrapped(JSC::VM& vm, JSC::JSValue value)
+{
+    if (auto* wrapper = jsDynamicCast<JSTextMetrics*>(vm, value))
+        return &wrapper->wrapped();
+    return nullptr;
+}
+
+}