137 lines
7.4 KiB
C++
137 lines
7.4 KiB
C++
/*
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* Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
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* Copyright (C) 2003-2020 Apple Inc. All rights reserved.
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* Copyright (C) 2007 Samuel Weinig <sam@webkit.org>
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* Copyright (C) 2009 Google, Inc. All rights reserved.
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* Copyright (C) 2012 Ericsson AB. All rights reserved.
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* Copyright (C) 2013 Michael Pruett <michael@68k.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#pragma once
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#include "JSDOMCastThisValue.h"
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#include "JSDOMExceptionHandling.h"
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namespace WebCore {
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template<typename JSClass>
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class IDLAttribute {
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public:
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using Setter = bool(JSC::JSGlobalObject&, JSClass&, JSC::JSValue);
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using SetterPassingPropertyName = bool(JSC::JSGlobalObject&, JSClass&, JSC::JSValue, JSC::PropertyName);
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using StaticSetter = bool(JSC::JSGlobalObject&, JSC::JSValue);
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using Getter = JSC::JSValue(JSC::JSGlobalObject&, JSClass&);
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using GetterPassingPropertyName = JSC::JSValue(JSC::JSGlobalObject&, JSClass&, JSC::PropertyName);
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using StaticGetter = JSC::JSValue(JSC::JSGlobalObject&);
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template<Setter setter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw>
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static bool set(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue thisValue, JSC::EncodedJSValue encodedValue, JSC::PropertyName attributeName)
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{
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auto throwScope = DECLARE_THROW_SCOPE(JSC::getVM(&lexicalGlobalObject));
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auto* thisObject = castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue));
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if (UNLIKELY(!thisObject)) {
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if constexpr (shouldThrow == CastedThisErrorBehavior::Throw)
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return JSC::throwVMDOMAttributeSetterTypeError(&lexicalGlobalObject, throwScope, JSClass::info(), attributeName);
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else
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return false;
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}
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RELEASE_AND_RETURN(throwScope, (setter(lexicalGlobalObject, *thisObject, JSC::JSValue::decode(encodedValue))));
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}
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// FIXME: FIXME: This can be merged with `set` if we replace the explicit setter function template parameter with a generic lambda.
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template<SetterPassingPropertyName setter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw>
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static bool setPassingPropertyName(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue thisValue, JSC::EncodedJSValue encodedValue, JSC::PropertyName attributeName)
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{
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auto throwScope = DECLARE_THROW_SCOPE(JSC::getVM(&lexicalGlobalObject));
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auto* thisObject = castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue));
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if (UNLIKELY(!thisObject)) {
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if constexpr (shouldThrow == CastedThisErrorBehavior::Throw)
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return JSC::throwVMDOMAttributeSetterTypeError(&lexicalGlobalObject, throwScope, JSClass::info(), attributeName);
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else
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return false;
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}
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RELEASE_AND_RETURN(throwScope, (setter(lexicalGlobalObject, *thisObject, JSC::JSValue::decode(encodedValue), attributeName)));
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}
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template<StaticSetter setter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw>
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static bool setStatic(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue, JSC::EncodedJSValue encodedValue, JSC::PropertyName)
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{
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return setter(lexicalGlobalObject, JSC::JSValue::decode(encodedValue));
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}
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template<Getter getter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw>
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static JSC::EncodedJSValue get(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue thisValue, JSC::PropertyName attributeName)
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{
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auto throwScope = DECLARE_THROW_SCOPE(JSC::getVM(&lexicalGlobalObject));
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if constexpr (shouldThrow == CastedThisErrorBehavior::Assert) {
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ASSERT(castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue)));
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auto* thisObject = JSC::jsCast<JSClass*>(JSC::JSValue::decode(thisValue));
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RELEASE_AND_RETURN(throwScope, (JSC::JSValue::encode(getter(lexicalGlobalObject, *thisObject))));
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} else {
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auto* thisObject = castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue));
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if (UNLIKELY(!thisObject)) {
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if constexpr (shouldThrow == CastedThisErrorBehavior::Throw)
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return JSC::throwVMDOMAttributeGetterTypeError(&lexicalGlobalObject, throwScope, JSClass::info(), attributeName);
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else if constexpr (shouldThrow == CastedThisErrorBehavior::RejectPromise)
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RELEASE_AND_RETURN(throwScope, rejectPromiseWithGetterTypeError(lexicalGlobalObject, JSClass::info(), attributeName));
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else
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return JSC::JSValue::encode(JSC::jsUndefined());
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}
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RELEASE_AND_RETURN(throwScope, (JSC::JSValue::encode(getter(lexicalGlobalObject, *thisObject))));
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}
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}
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// FIXME: This can be merged with `get` if we replace the explicit setter function template parameter with a generic lambda.
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template<GetterPassingPropertyName getter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw>
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static JSC::EncodedJSValue getPassingPropertyName(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue thisValue, JSC::PropertyName attributeName)
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{
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auto throwScope = DECLARE_THROW_SCOPE(JSC::getVM(&lexicalGlobalObject));
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if constexpr (shouldThrow == CastedThisErrorBehavior::Assert) {
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ASSERT(castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue)));
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auto* thisObject = JSC::jsCast<JSClass*>(JSC::JSValue::decode(thisValue));
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RELEASE_AND_RETURN(throwScope, (JSC::JSValue::encode(getter(lexicalGlobalObject, *thisObject, attributeName))));
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} else {
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auto* thisObject = castThisValue<JSClass>(lexicalGlobalObject, JSC::JSValue::decode(thisValue));
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if (UNLIKELY(!thisObject)) {
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if constexpr (shouldThrow == CastedThisErrorBehavior::Throw)
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return JSC::throwVMDOMAttributeGetterTypeError(&lexicalGlobalObject, throwScope, JSClass::info(), attributeName);
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else if constexpr (shouldThrow == CastedThisErrorBehavior::RejectPromise)
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RELEASE_AND_RETURN(throwScope, rejectPromiseWithGetterTypeError(lexicalGlobalObject, JSClass::info(), attributeName));
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else
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return JSC::JSValue::encode(JSC::jsUndefined());
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}
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RELEASE_AND_RETURN(throwScope, (JSC::JSValue::encode(getter(lexicalGlobalObject, *thisObject, attributeName))));
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}
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}
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template<StaticGetter getter, CastedThisErrorBehavior shouldThrow = CastedThisErrorBehavior::Throw>
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static JSC::EncodedJSValue getStatic(JSC::JSGlobalObject& lexicalGlobalObject, JSC::EncodedJSValue, JSC::PropertyName)
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{
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return JSC::JSValue::encode(getter(lexicalGlobalObject));
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}
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};
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} // namespace WebCore
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