java/com/googlecode/prolog_cafe/builtin/PRED_$hash_addz_3.java [32:78]:
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    public Operation exec(Prolog engine) {
        engine.setB0();
        Term a1, a2, a3;
        a1 = arg1;
        a2 = arg2;
        a3 = arg3;

	Object hash = null;

	a1 = a1.dereference();
	if (a1 instanceof VariableTerm) {
	    throw new PInstantiationException(this, 1);
	} else if (a1 instanceof SymbolTerm) {
	    if (! engine.getHashManager().containsKey(a1))
		throw new ExistenceException(this, 1, "hash", a1, "");
	    hash = ((JavaObjectTerm) engine.getHashManager().get(a1)).object();
	} else if (a1 instanceof JavaObjectTerm) {
	    hash = ((JavaObjectTerm) a1).object();
	} else {
	    throw new IllegalDomainException(this, 1, "hash_or_alias", a1);
	}
	if (! (hash instanceof HashtableOfTerm))
	    throw new InternalException(this + ": Hash is not HashtableOfTerm");
	a2 = a2.dereference();
	Term elem = ((HashtableOfTerm) hash).get(a2);
	if (elem == null)
	    elem = SYM_NIL;
	a3 = a3.dereference();
	if (Prolog.Nil.equals(elem)) {
	    elem = new ListTerm(a3, elem);
	} else {
	    Term x = elem;
	    Term y;
	    while(true) {
		if (! (x instanceof ListTerm))
		    throw new InternalException(this + ": the valus of " + a2 + " is not list structure");
		y = ((ListTerm)x).cdr().dereference();
		if (Prolog.Nil.equals(y)) {
		    ((ListTerm)x).setCdr(new ListTerm(a3, SYM_NIL));
		    break;
		}
		x = y;
	    }
	}
	((HashtableOfTerm) hash).put(a2, elem);
        return cont;
    }
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src/builtin/PRED_$hash_addz_3.java [32:78]:
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    public Operation exec(Prolog engine) {
        engine.setB0();
        Term a1, a2, a3;
        a1 = arg1;
        a2 = arg2;
        a3 = arg3;

	Object hash = null;

	a1 = a1.dereference();
	if (a1 instanceof VariableTerm) {
	    throw new PInstantiationException(this, 1);
	} else if (a1 instanceof SymbolTerm) {
	    if (! engine.getHashManager().containsKey(a1))
		throw new ExistenceException(this, 1, "hash", a1, "");
	    hash = ((JavaObjectTerm) engine.getHashManager().get(a1)).object();
	} else if (a1 instanceof JavaObjectTerm) {
	    hash = ((JavaObjectTerm) a1).object();
	} else {
	    throw new IllegalDomainException(this, 1, "hash_or_alias", a1);
	}
	if (! (hash instanceof HashtableOfTerm))
	    throw new InternalException(this + ": Hash is not HashtableOfTerm");
	a2 = a2.dereference();
	Term elem = ((HashtableOfTerm) hash).get(a2);
	if (elem == null)
	    elem = SYM_NIL;
	a3 = a3.dereference();
	if (Prolog.Nil.equals(elem)) {
	    elem = new ListTerm(a3, elem);
	} else {
	    Term x = elem;
	    Term y;
	    while(true) {
		if (! (x instanceof ListTerm))
		    throw new InternalException(this + ": the valus of " + a2 + " is not list structure");
		y = ((ListTerm)x).cdr().dereference();
		if (Prolog.Nil.equals(y)) {
		    ((ListTerm)x).setCdr(new ListTerm(a3, SYM_NIL));
		    break;
		}
		x = y;
	    }
	}
	((HashtableOfTerm) hash).put(a2, elem);
        return cont;
    }
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