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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 v1.0
* which accompanies this distribution and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* PARC initial implementation
* ******************************************************************/
package answers;
import support.Log;
import figures.*;
aspect Answer3d {
private boolean Point.inGroup = false;
before(Point p):
execution(void Group.add(FigureElement))
&& args(p) {
if (p.inGroup) {
throw new IllegalStateException();
} else {
p.inGroup = true;
}
}
}
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