Replace [TreatNullAs=functionName] with [StrictTypeChecking]

Source/bindings/scripts/code_generator_v8.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 3770 matching lines @@
         $code .= "    ExceptionState exceptionState(info.Holder(), info.GetIsolate());\n";
         if ($raisesExceptions) {
             $extraArguments = ", exceptionState";
         }
     }
 
     my $asSetterValue = 0;
     $code .= "    ${implClassName}* collection = ${v8ClassName}::toNative(info.Holder());\n";
     $code .= JSValueToNativeStatement($indexedSetterFunction->parameters->[1]->type, $indexedSetterFunction->extendedAttributes, $asSetterValue, "jsValue", "propertyValue", "    ", "info.GetIsolate()");
 
-    my @conditions = ();
-    my @statements = ();
-    if ($treatNullAs && $treatNullAs ne "NullString") {
-        push @conditions, "jsValue->IsNull()";
-        push @statements, "collection->${treatNullAs}(index$extraArguments);";
+    if ($indexedSetterFunction->extendedAttributes->{"StrictTypeChecking"} && IsWrapperType($type)) {
+        $code .= <<END;
+    if (!isUndefinedOrNull(jsValue) && !V8${type}::hasInstance(jsValue, info.GetIsolate())) {
+        exceptionState.throwTypeError("The provided value is not of type '$type'.");
+        exceptionState.throwIfNeeded();
+        return;
     }
-    if ($treatUndefinedAs && $treatUndefinedAs ne "NullString") {
-        push @conditions, "jsValue->IsUndefined()";
-        push @statements, "collection->${treatUndefinedAs}(index$extraArguments);";
+END
     }
-    push @conditions, "";
-    push @statements, "collection->${methodName}(index, propertyValue$extraArguments);";
-    $code .= GenerateIfElseStatement("bool", "result", \@conditions, \@statements);
+
+    $code .= "    bool result = collection->${methodName}(index, propertyValue$extraArguments);\n";
 
     if ($raisesExceptions) {
         $code .= "    if (exceptionState.throwIfNeeded())\n";
         $code .= "        return;\n";
     }
     $code .= "    if (!result)\n";
     $code .= "        return;\n";
     $code .= "    v8SetReturnValue(info, jsValue);\n";
     $code .= "}\n\n";
     $implementation{nameSpaceInternal}->add($code);
@@ skipping 300 matching lines @@
         if ($raisesExceptions) {
             $extraArguments = ", exceptionState";
         }
     }
 
     my $asSetterValue = 0;
     $code .= "    ${implClassName}* collection = ${v8ClassName}::toNative(info.Holder());\n";
     $code .= JSValueToNativeStatement($namedSetterFunction->parameters->[0]->type, $namedSetterFunction->extendedAttributes, $asSetterValue, "name", "propertyName", "    ", "info.GetIsolate()");
     $code .= JSValueToNativeStatement($namedSetterFunction->parameters->[1]->type, $namedSetterFunction->extendedAttributes, $asSetterValue, "jsValue", "propertyValue", "    ", "info.GetIsolate()");
 
-    my @conditions = ();
-    my @statements = ();
-    if ($treatNullAs && $treatNullAs ne "NullString") {
-        push @conditions, "jsValue->IsNull()";
-        push @statements, "collection->${treatNullAs}(propertyName$extraArguments);";
-    }
-    if ($treatUndefinedAs && $treatUndefinedAs ne "NullString") {
-        push @conditions, "jsValue->IsUndefined()";
-        push @statements, "collection->${treatUndefinedAs}(propertyName$extraArguments);";
-    }
-    push @conditions, "";
-    push @statements, "collection->${methodName}(propertyName, propertyValue$extraArguments);";
-    $code .= GenerateIfElseStatement("bool", "result", \@conditions, \@statements);
-
+    $code .= "    bool result = collection->$methodName(propertyName, propertyValue$extraArguments);\n";
     $code .= "    if (!result)\n";
     $code .= "        return;\n";
     if ($raisesExceptions) {
         $code .= "    if (exceptionState.throwIfNeeded())\n";
         $code .= "        return;\n";
     }
     $code .= "    v8SetReturnValue(info, jsValue);\n";
     $code .= "}\n\n";
     $implementation{nameSpaceInternal}->add($code);
 }
@@ skipping 2287 matching lines @@
         if ($parameter->type eq "SerializedScriptValue") {
             return 1;
         } elsif (IsIntegerType($parameter->type)) {
             return 1;
         }
     }
     return 0;
 }
 
 1;