greycat.language.AttributeRef Maven / Gradle / Ivy
/**
* Copyright 2017 The GreyCat Authors. All rights reserved.
*
* Licensed 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 greycat.language;
public class AttributeRef {
private Attribute ref;
AttributeRef(Attribute initial) {
ref = initial;
ref.references.add(this);
}
public void update(Attribute new_ref) {
ref = new_ref;
ref.references.add(this);
}
public final Attribute ref() {
return ref;
}
}