1 /*
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  11  *   - Redistributions in binary form must reproduce the above copyright
  12  *     notice, this list of conditions and the following disclaimer in the
  13  *     documentation and/or other materials provided with the distribution.
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  15  *   - Neither the name of Oracle nor the names of its
  16  *     contributors may be used to endorse or promote products derived
  17  *     from this software without specific prior written permission.
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  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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  29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 
  32 // Demonstrate how to provide a default fall-through solution for adapted Java
  33 // objects, forwarding all calls that are not adapted.
  34 
  35 var Date = Java.type('java.time.LocalDate')
  36 
  37 function wrapDate(d) {
  38     return new JSAdapter() {
  39         __call__: function() {
  40             // adapted (extra) methods
  41             if (arguments[0] === 'yesterday') {
  42                 return d.minusDays(1)
  43             }
  44             // fall-through: forward all other, non-adapted method calls
  45             var args = [d].concat(Array.prototype.slice.call(arguments, 1)) 
  46             return Function.call.apply(d[arguments[0]], args)
  47         }
  48     }
  49 }
  50 
  51 var now = wrapDate(Date.now())
  52 
  53 print(now)
  54 print(now.yesterday()) // adapted
  55 print(now.lengthOfMonth()) // fall through to original method
  56 print(now.atTime(23, 42)) // arguments are passed through
  57