SOURCE CODE: Uize.Data.ValuePack (view docs)

/*______________
|       ______  |   U I Z E    J A V A S C R I P T    F R A M E W O R K
|     /      /  |   ---------------------------------------------------
|    /    O /   |    MODULE : Uize.Data.ValuePack Package
|   /    / /    |
|  /    / /  /| |    ONLINE : http://www.uize.com
| /____/ /__/_| | COPYRIGHT : (c)2015-2016 UIZE
|          /___ |   LICENSE : Available under MIT License or GNU General Public License
|_______________|             http://www.uize.com/license.html
*/

/* Module Meta Data
  type: Package
  importance: 1
  codeCompleteness: 100
  docCompleteness: 2
*/

/*?
  Introduction
    The =Uize.Data.ValuePack= module provides methods for packing just the values of an object structure into a values array, or unpacking such a packed values array to produce an object structure.

    *DEVELOPERS:* `Chris van Rensburg`
*/

Uize.module ({
  name:'Uize.Data.ValuePack',
  superclass:'Uize.Class',
  required:[
    'Uize.Data.Diff',
    'Uize.Data.Flatten',
    'Uize.Json'
  ],
  builder:function (_superclass) {
    'use strict';

    var
      /*** Variables for Scruncher Optimization ***/
        _Uize = Uize,
        _Uize_Data = _Uize.Data,
        _Uize_Json = _Uize.Json,
        _Function = Function
    ;

    return _superclass.subclass ({
      instanceMethods:{
        pack:function (_source) {
          return this._packer (_source);
        },

        unpack:function (_source) {
          return this._unpacker (_source);
        }
      },

      stateProperties:{
        archetype:{
          value:{}
        },

        /*** derived properties ***/
          _packer:{
            derived:{
              properties:'archetype',
              derivation:function (_archetype) {
                return _Function (
                  'a',
                  'return [' +
                  _Uize.keys (
                    _Uize_Data.Flatten.flatten (
                      _archetype,
                      function (_path) {
                        return 'a [' + _Uize.map (_path,_Uize_Json.to).join ('] [') + ']';
                      }
                    )
                  ).join (',') +
                  ']'
                );
              }
            }
          },

          _unpacker:{
            derived:{
              properties:'archetype',
              derivation:function (_archetype) {
                var _propertyNo = -1;
                return _Function (
                  'a',
                  'return ' +
                  _Uize_Json.to (
                    _Uize_Data.Diff.diff (
                      _archetype,
                      {},
                      function (_property) {
                        _property.value = '```' + ++_propertyNo + '```';
                        return _property;
                      }
                    )
                  ).replace (
                    /'```(\d+)```'/g,
                    'a [$1]'
                  ) + ';'
                );
              }
            }
          }
      }
    });
  }
});