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Diffstat (limited to 'node_modules/es6-map/lib/iterator.js')
-rw-r--r-- | node_modules/es6-map/lib/iterator.js | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/node_modules/es6-map/lib/iterator.js b/node_modules/es6-map/lib/iterator.js new file mode 100644 index 000000000..60f1e8c9e --- /dev/null +++ b/node_modules/es6-map/lib/iterator.js @@ -0,0 +1,38 @@ +'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')); |