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/* *******************************************************************
* Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v 2.0
* which accompanies this distribution and is available at
* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
*
* Contributors:
* PARC initial implementation
* ******************************************************************/
package answers;
import support.Log;
import figures.*;
aspect Answer3e {
private Group Point.containingGroup = null;
before(Group g, Point p):
execution(void Group.add(FigureElement))
&& this(g)
&& args(p) {
if (p.containingGroup != null) {
throw new IllegalStateException(p.containingGroup.toString());
} else {
p.containingGroup = g;
}
}
}
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