com.sun.tools.rngom.parse.host.Base Maven / Gradle / Ivy
/*
* Copyright (C) 2004-2011
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.sun.tools.rngom.parse.host;
import com.sun.tools.rngom.ast.builder.Annotations;
import com.sun.tools.rngom.ast.om.Location;
/**
*
* @author
* Kohsuke Kawaguchi ([email protected])
*/
public class Base {
protected AnnotationsHost cast( Annotations ann ) {
if(ann==null)
return nullAnnotations;
else
return (AnnotationsHost)ann;
}
protected LocationHost cast( Location loc ) {
if(loc==null)
return nullLocation;
else
return (LocationHost)loc;
}
private static final AnnotationsHost nullAnnotations = new AnnotationsHost(null,null);
private static final LocationHost nullLocation = new LocationHost(null,null);
}