Add 'error' parameter to 'window.onerror' handlers.

Source/bindings/v8/V8ErrorHandler.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "bindings/v8/V8ErrorHandler.h"
 
 #include "bindings/v8/ScriptController.h"
 #include "bindings/v8/V8Binding.h"
+#include "bindings/v8/V8HiddenPropertyName.h"
 #include "bindings/v8/V8ScriptRunner.h"
 #include "core/dom/ErrorEvent.h"
 #include "core/dom/EventNames.h"
 
 namespace WebCore {
 
 V8ErrorHandler::V8ErrorHandler(v8::Local<v8::Object> listener, bool isInline)
     : V8EventListener(listener, isInline)
 {
 }
 
 v8::Local<v8::Value> V8ErrorHandler::callListenerFunction(ScriptExecutionContext* context, v8::Handle<v8::Value> jsEvent, Event* event)
 {
     if (!event->hasInterface(eventNames().interfaceForErrorEvent))
         return V8EventListener::callListenerFunction(context, jsEvent, event);
 
     ErrorEvent* errorEvent = static_cast<ErrorEvent*>(event);
     v8::Local<v8::Object> listener = getListenerObject(context);
     v8::Isolate* isolate = toV8Context(context, world())->GetIsolate();
     v8::Local<v8::Value> returnValue;
     if (!listener.IsEmpty() && listener->IsFunction()) {
         v8::Local<v8::Function> callFunction = v8::Local<v8::Function>::Cast(listener);
         v8::Local<v8::Object> thisValue = v8::Context::GetCurrent()->Global();
-        v8::Handle<v8::Value> parameters[4] = { v8String(errorEvent->message(), isolate), v8String(errorEvent->filename(), isolate), v8::Integer::New(errorEvent->lineno(), isolate), v8::Integer::New(errorEvent->colno(), isolate) };
+
+        v8::Local<v8::Value> error = jsEvent->ToObject()->GetHiddenValue(V8HiddenPropertyName::error());
+        if (error.IsEmpty())
+            error = v8::Null(isolate);
+
+        v8::Handle<v8::Value> parameters[5] = { v8String(errorEvent->message(), isolate), v8String(errorEvent->filename(), isolate), v8::Integer::New(errorEvent->lineno(), isolate), v8::Integer::New(errorEvent->colno(), isolate), error };
         v8::TryCatch tryCatch;
         tryCatch.SetVerbose(true);
         if (worldType(isolate) == WorkerWorld)
             returnValue = V8ScriptRunner::callFunction(callFunction, context, thisValue, WTF_ARRAY_LENGTH(parameters), parameters);
         else
             returnValue = ScriptController::callFunctionWithInstrumentation(0, callFunction, thisValue, WTF_ARRAY_LENGTH(parameters), parameters);
     }
     return returnValue;
 }
 
 bool V8ErrorHandler::shouldPreventDefault(v8::Local<v8::Value> returnValue)
 {
     return returnValue->IsBoolean() && returnValue->BooleanValue();
 }
 
 } // namespace WebCore