'length' property is invalid for some DOM bindings functions

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 851 matching lines @@
 }
 
 sub GenerateDomainSafeFunctionGetter
 {
     my $function = shift;
     my $interfaceName = shift;
 
     my $v8InterfaceName = "V8" . $interfaceName;
     my $funcName = $function->signature->name;
 
+    my ($numMandatoryParams, $parametersCheck) = GenerateFunctionParametersCheck($function);
     my $signature = "v8::Signature::New(V8PerIsolateData::from(info.GetIsolate())->rawTemplate(&" . $v8InterfaceName . "::info, currentWorldType))";
     if ($function->signature->extendedAttributes->{"DoNotCheckSignature"}) {
         $signature = "v8::Local<v8::Signature>()";
     }
 
     my $newTemplateParams = "${interfaceName}V8Internal::${funcName}MethodCallback, v8Undefined(), $signature";
 
     AddToImplIncludes("Frame.h");
     AddToImplContentInternals(<<END);
 static v8::Handle<v8::Value> ${funcName}AttrGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
 {
     // This is only for getting a unique pointer which we can pass to privateTemplate.
     static const char* privateTemplateUniqueKey = "${funcName}PrivateTemplate";
     WrapperWorldType currentWorldType = worldType(info.GetIsolate());
     V8PerIsolateData* data = V8PerIsolateData::from(info.GetIsolate());
-    v8::Persistent<v8::FunctionTemplate> privateTemplate = data->privateTemplate(currentWorldType, &privateTemplateUniqueKey, $newTemplateParams);
+    v8::Persistent<v8::FunctionTemplate> privateTemplate = data->privateTemplate(currentWorldType, &privateTemplateUniqueKey, $newTemplateParams, $numMandatoryParams);
 
     v8::Handle<v8::Object> holder = info.This()->FindInstanceInPrototypeChain(${v8InterfaceName}::GetTemplate(info.GetIsolate(), currentWorldType));
     if (holder.IsEmpty()) {
         // can only reach here by 'object.__proto__.func', and it should passed
         // domain security check already
         return privateTemplate->GetFunction();
     }
     ${interfaceName}* imp = ${v8InterfaceName}::toNative(holder);
     if (!BindingSecurity::shouldAllowAccessToFrame(BindingState::instance(), imp->frame(), DoNotReportSecurityError)) {
         static const char* sharedTemplateUniqueKey = "${funcName}SharedTemplate";
-        v8::Persistent<v8::FunctionTemplate> sharedTemplate = data->privateTemplate(currentWorldType, &sharedTemplateUniqueKey, $newTemplateParams);
+        v8::Persistent<v8::FunctionTemplate> sharedTemplate = data->privateTemplate(currentWorldType, &sharedTemplateUniqueKey, $newTemplateParams, $numMandatoryParams);
         return sharedTemplate->GetFunction();
     }
 
     v8::Local<v8::Value> hiddenValue = info.This()->GetHiddenValue(name);
     if (!hiddenValue.IsEmpty())
         return hiddenValue;
 
     return privateTemplate->GetFunction();
 }
 
@@ skipping 1856 matching lines @@
     if ($property_attributes eq "v8::DontDelete") {
         $property_attributes = "";
     } else {
         $property_attributes = ", static_cast<v8::PropertyAttribute>($property_attributes)";
     }
 
     if ($template eq "proto" && $conditional eq "" && $signature eq "defaultSignature" && $property_attributes eq "") {
         die "This shouldn't happen: Intraface '$interfaceName' $commentInfo\n";
     }
 
+    my ($numMandatoryParams, $parametersCheck) = GenerateFunctionParametersCheck($function);
+
     my $conditionalString = $codeGenerator->GenerateConditionalString($function->signature);
     $code .= "#if ${conditionalString}\n" if $conditionalString;
     if ($function->signature->extendedAttributes->{"PerWorldBindings"}) {
         $code .= "    if (currentWorldType == MainWorld) {\n";
-        $code .= "        ${conditional}$template->Set(v8::String::NewSymbol(\"$name\"), v8::FunctionTemplate::New(${interfaceName}V8Internal::${name}MethodCallbackForMainWorld, v8Undefined(), ${signature})$property_attributes);\n";
+        $code .= "        ${conditional}$template->Set(v8::String::NewSymbol(\"$name\"), v8::FunctionTemplate::New(${interfaceName}V8Internal::${name}MethodCallbackForMainWorld, v8Undefined(), ${signature}, $numMandatoryParams)$property_attributes);\n";
         $code .= "    } else {\n";
-        $code .= "        ${conditional}$template->Set(v8::String::NewSymbol(\"$name\"), v8::FunctionTemplate::New(${interfaceName}V8Internal::${name}MethodCallback, v8Undefined(), ${signature})$property_attributes);\n";
+        $code .= "        ${conditional}$template->Set(v8::String::NewSymbol(\"$name\"), v8::FunctionTemplate::New(${interfaceName}V8Internal::${name}MethodCallback, v8Undefined(), ${signature}, $numMandatoryParams)$property_attributes);\n";
         $code .= "    }\n";
     } else {
-        $code .= "    ${conditional}$template->Set(v8::String::NewSymbol(\"$name\"), v8::FunctionTemplate::New(${interfaceName}V8Internal::${name}MethodCallback, v8Undefined(), ${signature})$property_attributes);\n";
+        $code .= "    ${conditional}$template->Set(v8::String::NewSymbol(\"$name\"), v8::FunctionTemplate::New(${interfaceName}V8Internal::${name}MethodCallback, v8Undefined(), ${signature}, $numMandatoryParams)$property_attributes);\n";
     }
     $code .= "#endif // ${conditionalString}\n" if $conditionalString;
     return $code;
 }
 
 sub GenerateImplementationIndexedProperty
 {
     my $interface = shift;
     my $indexer = shift;
     my $interfaceName = $interface->name;
@@ skipping 839 matching lines @@
         # Setup the enable-by-settings functions if we have them
         $code .=  <<END;
     v8::Local<v8::Signature> defaultSignature = v8::Signature::New(GetTemplate(isolate, worldType(isolate)));
     UNUSED_PARAM(defaultSignature); // In some cases, it will not be used.
 
     ScriptExecutionContext* context = toScriptExecutionContext(proto->CreationContext());
 END
 
         foreach my $runtimeFunc (@enabledPerContextFunctions) {
             my $enableFunction = GetContextEnableFunction($runtimeFunc->signature);
+            my ($numMandatoryParams, $parametersCheck) = GenerateFunctionParametersCheck($runtimeFunc);
             my $conditionalString = $codeGenerator->GenerateConditionalString($runtimeFunc->signature);
             $code .= "\n#if ${conditionalString}\n" if $conditionalString;
             $code .= "    if (context && context->isDocument() && ${enableFunction}(toDocument(context))) {\n";
             my $name = $runtimeFunc->signature->name;
             $code .= <<END;
-        proto->Set(v8::String::NewSymbol("${name}"), v8::FunctionTemplate::New(${interfaceName}V8Internal::${name}MethodCallback, v8Undefined(), defaultSignature)->GetFunction());
+        proto->Set(v8::String::NewSymbol("${name}"), v8::FunctionTemplate::New(${interfaceName}V8Internal::${name}MethodCallback, v8Undefined(), defaultSignature, $numMandatoryParams)->GetFunction());
 END
             $code .= "    }\n";
             $code .= "#endif // ${conditionalString}\n" if $conditionalString;
         }
 
         $code .= <<END;
 }
 
 END
         AddToImplContent($code);
@@ skipping 1201 matching lines @@
 
 sub GetPassRefPtrType
 {
     my $v8InterfaceName = shift;
 
     my $angleBracketSpace = $v8InterfaceName =~ />$/ ? " " : "";
     return "PassRefPtr<${v8InterfaceName}${angleBracketSpace}>";
 }
 
 1;