[binding] Check own property on named property accessor

Source/bindings/scripts/CodeGeneratorV8.pm

 # Copyright (C) 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
 # Copyright (C) 2006 Anders Carlsson <andersca@mac.com>
 # Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
 # Copyright (C) 2006 Alexey Proskuryakov <ap@webkit.org>
 # Copyright (C) 2006 Apple Computer, Inc.
 # Copyright (C) 2007, 2008, 2009, 2012 Google Inc.
 # Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
 # Copyright (C) Research In Motion Limited 2010. All rights reserved.
 # Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
 # Copyright (C) 2012 Ericsson AB. All rights reserved.
@@ skipping 3454 matching lines @@
     my $raisesExceptions = $namedGetterFunction->signature->extendedAttributes->{"RaisesException"};
     my $methodCallCode = GenerateMethodCall($returnType, "element", "collection->${methodName}", "propertyName", $raisesExceptions);
 
     my $code = "v8::Handle<v8::Value> ${v8ClassName}::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)\n";
     $code .= "{\n";
     if (!$namedGetterFunction->signature->extendedAttributes->{"OverrideBuiltins"}) {
         $code .= "    if (!info.Holder()->GetRealNamedPropertyInPrototypeChain(name).IsEmpty())\n";
         $code .= "        return v8Undefined();\n";
         $code .= "    if (info.Holder()->HasRealNamedCallbackProperty(name))\n";
         $code .= "        return v8Undefined();\n";
+        $code .= "    if (info.Holder()->HasRealNamedProperty(name))\n";
+        $code .= "        return v8Undefined();\n";
     }
     $code .= "\n";
     $code .= "    ASSERT(V8DOMWrapper::maybeDOMWrapper(info.Holder()));\n";
     $code .= "    ${implClassName}* collection = toNative(info.Holder());\n";
     $code .= "    AtomicString propertyName = toWebCoreAtomicString(name);\n";
     if ($raisesExceptions) {
         $code .= "    ExceptionCode ec = 0;\n";
     }
     $code .= $methodCallCode . "\n";
     if ($raisesExceptions) {
@@ skipping 53 matching lines @@
     my $treatNullAs = $namedSetterFunction->parameters->[1]->extendedAttributes->{"TreatNullAs"};
     my $treatUndefinedAs = $namedSetterFunction->parameters->[1]->extendedAttributes->{"TreatUndefinedAs"};
 
     my $code = "v8::Handle<v8::Value> ${v8ClassName}::namedPropertySetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info)\n";
     $code .= "{\n";
     if (!$namedSetterFunction->signature->extendedAttributes->{"OverrideBuiltins"}) {
         $code .= "    if (!info.Holder()->GetRealNamedPropertyInPrototypeChain(name).IsEmpty())\n";
         $code .= "        return v8Undefined();\n";
         $code .= "    if (info.Holder()->HasRealNamedCallbackProperty(name))\n";
         $code .= "        return v8Undefined();\n";
+        $code .= "    if (info.Holder()->HasRealNamedProperty(name))\n";
+        $code .= "        return v8Undefined();\n";
     }
     $code .= "    ${implClassName}* collection = toNative(info.Holder());\n";
     $code .= GenerateNativeValueDefinition($namedSetterFunction, $namedSetterFunction->parameters->[0], "name", "propertyName", "info.GetIsolate()");
     $code .= GenerateNativeValueDefinition($namedSetterFunction, $namedSetterFunction->parameters->[1], "value", "propertyValue", "info.GetIsolate()");
     my $extraArguments = "";
     if ($raisesExceptions) {
         $code .= "    ExceptionCode ec = 0;\n";
         $extraArguments = ", ec";
     }
 
@@ skipping 2206 matching lines @@
         if ($currentInterface->extendedAttributes->{$extendedAttribute}) {
             $found = 1;
         }
         return 1 if $found;
     }, 0);
 
     return $found;
 }
 
 1;