package lawOfDemeter;
import java.util.*;

/**
 * The ImmediatePartBin aspect is part of a Law of Demeter Checker - a set of
 * classes and aspects that verify a given program does not violate
 * the Law of Demeter.  This aspect stores the immediate parts, or
 * instance variables, of objects as they are set for later
 * examination by the Checker aspect.
 *
 * @author David H. Lorenz
 * @author Modifications made by Paul Freeman
 */
public aspect ImmediatePartBin extends Supplier
    perthis(Any.ConstructorExecution()){

  /**
   * Prints the objects currently in the bin.
   * Used for debugging.
   */
  public void printBin(){
    System.out.println("-- immediate part objects --");
    printHashMap(targets);
    System.out.println("----------------------------");
  }

  /**
   * Advice that stores the immediate part objects, or instance variables, of
   * the object currently executing.
   */
  before(): // direct parts
    Any.Set() {
      // There is only one argument to a set join point.
      // Becomes a preferred supplier and is therefore added to targets.
      addAll(thisJoinPoint.getArgs(), direct+at(thisJoinPoint));
//      System.out.println("Adding--" + thisJoinPoint + at(thisJoinPoint));
  }

}