review.tizen.org Git - platform/framework/web/crosswalk-tizen.git/blob

   1 'use strict';
   2
   3 var clear             = require('es5-ext/array/#/clear')
   4   , assign            = require('es5-ext/object/assign')
   5   , setPrototypeOf    = require('es5-ext/object/set-prototype-of')
   6   , toStringTagSymbol = require('es6-symbol').toStringTag
   7   , d                 = require('d')
   8   , autoBind          = require('d/auto-bind')
   9   , Iterator          = require('es6-iterator')
  10   , kinds             = require('./iterator-kinds')
  11
  12   , defineProperties = Object.defineProperties, keys = Object.keys
  13   , unBind = Iterator.prototype._unBind
  14   , PrimitiveMapIterator;
  15
  16 PrimitiveMapIterator = module.exports = function (map, kind) {
  17         if (!(this instanceof PrimitiveMapIterator)) {
  18                 return new PrimitiveMapIterator(map, kind);
  19         }
  20         Iterator.call(this, keys(map.__mapKeysData__), map);
  21         if (!kind || !kinds[kind]) kind = 'key+value';
  22         defineProperties(this, {
  23                 __kind__: d('', kind),
  24                 __keysData__: d('w', map.__mapKeysData__),
  25                 __valuesData__: d('w', map.__mapValuesData__)
  26         });
  27 };
  28 if (setPrototypeOf) setPrototypeOf(PrimitiveMapIterator, Iterator);
  29
  30 PrimitiveMapIterator.prototype = Object.create(Iterator.prototype, assign({
  31         constructor: d(PrimitiveMapIterator),
  32         _resolve: d(function (i) {
  33                 if (this.__kind__ === 'value') return this.__valuesData__[this.__list__[i]];
  34                 if (this.__kind__ === 'key') return this.__keysData__[this.__list__[i]];
  35                 return [this.__keysData__[this.__list__[i]],
  36                         this.__valuesData__[this.__list__[i]]];
  37         }),
  38         _unBind: d(function () {
  39                 this.__keysData__ = null;
  40                 this.__valuesData__ = null;
  41                 unBind.call(this);
  42         }),
  43         toString: d(function () { return '[object Map Iterator]'; })
  44 }, autoBind({
  45         _onAdd: d(function (key) { this.__list__.push(key); }),
  46         _onDelete: d(function (key) {
  47                 var index = this.__list__.lastIndexOf(key);
  48                 if (index < this.__nextIndex__) return;
  49                 this.__list__.splice(index, 1);
  50         }),
  51         _onClear: d(function () {
  52                 clear.call(this.__list__);
  53                 this.__nextIndex__ = 0;
  54         })
  55 })));
  56 Object.defineProperty(PrimitiveMapIterator.prototype, toStringTagSymbol,
  57         d('c', 'Map Iterator'));