aaac7fed
 liuqimichale
add
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'use strict';
var setPrototypeOf = require('es5-ext/object/set-prototype-of')
, d = require('d')
, Iterator = require('es6-iterator')
, toStringTagSymbol = require('es6-symbol').toStringTag
, kinds = require('./iterator-kinds')
, defineProperties = Object.defineProperties
, unBind = Iterator.prototype._unBind
, MapIterator;
MapIterator = module.exports = function (map, kind) {
if (!(this instanceof MapIterator)) return new MapIterator(map, kind);
Iterator.call(this, map.__mapKeysData__, map);
if (!kind || !kinds[kind]) kind = 'key+value';
defineProperties(this, {
__kind__: d('', kind),
__values__: d('w', map.__mapValuesData__)
});
};
if (setPrototypeOf) setPrototypeOf(MapIterator, Iterator);
MapIterator.prototype = Object.create(Iterator.prototype, {
constructor: d(MapIterator),
_resolve: d(function (i) {
if (this.__kind__ === 'value') return this.__values__[i];
if (this.__kind__ === 'key') return this.__list__[i];
return [this.__list__[i], this.__values__[i]];
}),
_unBind: d(function () {
this.__values__ = null;
unBind.call(this);
}),
toString: d(function () { return '[object Map Iterator]'; })
});
Object.defineProperty(MapIterator.prototype, toStringTagSymbol,
d('c', 'Map Iterator'));
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