| /* |
| * Copyright (C) 1999-2001 Harri Porten (porten@kde.org) |
| * Copyright (C) 2003-2020 Apple Inc. All rights reserved. |
| * Copyright (C) 2007 Samuel Weinig <sam@webkit.org> |
| * Copyright (C) 2009 Google, Inc. All rights reserved. |
| * Copyright (C) 2012 Ericsson AB. All rights reserved. |
| * Copyright (C) 2013 Michael Pruett <michael@68k.org> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #pragma once |
| |
| #include "JSDOMCastThisValue.h" |
| #include "JSDOMExceptionHandling.h" |
| |
| namespace WebCore { |
| |
| template<typename JSClass> |
| class IDLAttribute { |
| public: |
| using Setter = bool(JSC::JSGlobalObject&, JSClass&, JSC::JSValue); |
| using SetterPassingPropertyName = bool(JSC::JSGlobalObject&, JSClass&, JSC::JSValue, JSC::PropertyName); |
| using StaticSetter = bool(JSC::JSGlobalObject&, JSC::JSValue); |
| using Getter = JSC::JSValue(JSC::JSGlobalObject&, JSClass&); |
| using GetterPassingPropertyName = JSC::JSValue(JSC::JSGlobalObject&, JSClass&, JSC::PropertyName); |
| using StaticGetter = JSC::JSValue(JSC::JSGlobalObject&); |
| |
| template<Setter setter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw> |
| static bool set(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue thisValue, JSC::EncodedJSValue encodedValue, JSC::PropertyName attributeName) |
| { |
| auto throwScope = DECLARE_THROW_SCOPE(JSC::getVM(&lexicalGlobalObject)); |
| |
| auto* thisObject = castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue)); |
| if (UNLIKELY(!thisObject)) { |
| if constexpr (shouldThrow == CastedThisErrorBehavior::Throw) |
| return JSC::throwVMDOMAttributeSetterTypeError(&lexicalGlobalObject, throwScope, JSClass::info(), attributeName); |
| else |
| return false; |
| } |
| |
| RELEASE_AND_RETURN(throwScope, (setter(lexicalGlobalObject, *thisObject, JSC::JSValue::decode(encodedValue)))); |
| } |
| |
| // FIXME: FIXME: This can be merged with `set` if we replace the explicit setter function template parameter with a generic lambda. |
| template<SetterPassingPropertyName setter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw> |
| static bool setPassingPropertyName(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue thisValue, JSC::EncodedJSValue encodedValue, JSC::PropertyName attributeName) |
| { |
| auto throwScope = DECLARE_THROW_SCOPE(JSC::getVM(&lexicalGlobalObject)); |
| |
| auto* thisObject = castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue)); |
| if (UNLIKELY(!thisObject)) { |
| if constexpr (shouldThrow == CastedThisErrorBehavior::Throw) |
| return JSC::throwVMDOMAttributeSetterTypeError(&lexicalGlobalObject, throwScope, JSClass::info(), attributeName); |
| else |
| return false; |
| } |
| |
| RELEASE_AND_RETURN(throwScope, (setter(lexicalGlobalObject, *thisObject, JSC::JSValue::decode(encodedValue), attributeName))); |
| } |
| |
| template<StaticSetter setter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw> |
| static bool setStatic(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue, JSC::EncodedJSValue encodedValue, JSC::PropertyName) |
| { |
| return setter(lexicalGlobalObject, JSC::JSValue::decode(encodedValue)); |
| } |
| |
| template<Getter getter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw> |
| static JSC::EncodedJSValue get(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue thisValue, JSC::PropertyName attributeName) |
| { |
| auto throwScope = DECLARE_THROW_SCOPE(JSC::getVM(&lexicalGlobalObject)); |
| |
| if constexpr (shouldThrow == CastedThisErrorBehavior::Assert) { |
| ASSERT(castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue))); |
| auto* thisObject = JSC::jsCast<JSClass*>(JSC::JSValue::decode(thisValue)); |
| RELEASE_AND_RETURN(throwScope, (JSC::JSValue::encode(getter(lexicalGlobalObject, *thisObject)))); |
| } else { |
| auto* thisObject = castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue)); |
| if (UNLIKELY(!thisObject)) { |
| if constexpr (shouldThrow == CastedThisErrorBehavior::Throw) |
| return JSC::throwVMDOMAttributeGetterTypeError(&lexicalGlobalObject, throwScope, JSClass::info(), attributeName); |
| else if constexpr (shouldThrow == CastedThisErrorBehavior::RejectPromise) |
| RELEASE_AND_RETURN(throwScope, rejectPromiseWithGetterTypeError(lexicalGlobalObject, JSClass::info(), attributeName)); |
| else |
| return JSC::JSValue::encode(JSC::jsUndefined()); |
| } |
| |
| RELEASE_AND_RETURN(throwScope, (JSC::JSValue::encode(getter(lexicalGlobalObject, *thisObject)))); |
| } |
| } |
| |
| // FIXME: This can be merged with `get` if we replace the explicit setter function template parameter with a generic lambda. |
| template<GetterPassingPropertyName getter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw> |
| static JSC::EncodedJSValue getPassingPropertyName(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue thisValue, JSC::PropertyName attributeName) |
| { |
| auto throwScope = DECLARE_THROW_SCOPE(JSC::getVM(&lexicalGlobalObject)); |
| |
| if constexpr (shouldThrow == CastedThisErrorBehavior::Assert) { |
| ASSERT(castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue))); |
| auto* thisObject = JSC::jsCast<JSClass*>(JSC::JSValue::decode(thisValue)); |
| RELEASE_AND_RETURN(throwScope, (JSC::JSValue::encode(getter(lexicalGlobalObject, *thisObject, attributeName)))); |
| } else { |
| auto* thisObject = castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue)); |
| if (UNLIKELY(!thisObject)) { |
| if constexpr (shouldThrow == CastedThisErrorBehavior::Throw) |
| return JSC::throwVMDOMAttributeGetterTypeError(&lexicalGlobalObject, throwScope, JSClass::info(), attributeName); |
| else if constexpr (shouldThrow == CastedThisErrorBehavior::RejectPromise) |
| RELEASE_AND_RETURN(throwScope, rejectPromiseWithGetterTypeError(lexicalGlobalObject, JSClass::info(), attributeName)); |
| else |
| return JSC::JSValue::encode(JSC::jsUndefined()); |
| } |
| |
| RELEASE_AND_RETURN(throwScope, (JSC::JSValue::encode(getter(lexicalGlobalObject, *thisObject, attributeName)))); |
| } |
| } |
| |
| template<StaticGetter getter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw> |
| static JSC::EncodedJSValue getStatic(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue, JSC::PropertyName) |
| { |
| return JSC::JSValue::encode(getter(lexicalGlobalObject)); |
| } |
| }; |
| |
| } // namespace WebCore |