textLayout/src/flashx/textLayout/property/UndefinedPropertyHandler.as

////////////////////////////////////////////////////////////////////////////////
//
//  Licensed to the Apache Software Foundation (ASF) under one or more
//  contributor license agreements.  See the NOTICE file distributed with
//  this work for additional information regarding copyright ownership.
//  The ASF licenses this file to You under the Apache License, Version 2.0
//  (the "License"); you may not use this file except in compliance with
//  the License.  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//
////////////////////////////////////////////////////////////////////////////////
package flashx.textLayout.property
{
	import flashx.textLayout.debug.assert;
		
	[ExcludeClass]
	/** An property description with an enumerated string as its value. @private */
	public class UndefinedPropertyHandler extends PropertyHandler
	{
		/** @private */
		public override function owningHandlerCheck(newVal:*):*
		{ 
			return newVal === null || newVal === undefined ? true : undefined;
		}

		/** @private */
		public override function setHelper(newVal:*):*
		{ 
			CONFIG::debug{ assert(newVal == true,"Bad call to UndefinedPropertyHandler.setHelper"); }
			return undefined;
		}	
	}
}