Source: org/terraswarm/accessor/test/auto/accessors/DerivedAgainA.js

// Copyright (c) 2014-2016 The Regents of the University of California.
// All rights reserved.

// Permission is hereby granted, without written agreement and without
// license or royalty fees, to use, copy, modify, and distribute this
// software and its documentation for any purpose, provided that the above
// copyright notice and the following two paragraphs appear in all copies
// of this software.

// IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.

// THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
// ENHANCEMENTS, OR MODIFICATIONS.

/** Doubly derived accessor that overrides a function (inputHandler) of the base
 *  two levels up, it should produce an output value of 2 on both outputs.
 *
 *  @accessor TestDerivedC
 *  @author Edward A. Lee
 *  @version $$Id$$
 */
exports.setup = function () {
    this.extend('DerivedC');
    this.output('out2');
}

//Override input Handler of base. try to access fields defined in
//base and derived
exports.inputHandler = function () {
    // Invoke the base class inputHandler, defined two levels up.
    Object.getPrototypeOf(exports).inputHandler.call(this);
    this.send('out2', this.derivedField);
}