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Runtime error
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var setPrototypeOf = require("es5-ext/object/set-prototype-of") | |
, contains = require("es5-ext/string/#/contains") | |
, d = require("d") | |
, Symbol = require("es6-symbol") | |
, Iterator = require("./"); | |
var defineProperty = Object.defineProperty, ArrayIterator; | |
ArrayIterator = module.exports = function (arr, kind) { | |
if (!(this instanceof ArrayIterator)) throw new TypeError("Constructor requires 'new'"); | |
Iterator.call(this, arr); | |
if (!kind) kind = "value"; | |
else if (contains.call(kind, "key+value")) kind = "key+value"; | |
else if (contains.call(kind, "key")) kind = "key"; | |
else kind = "value"; | |
defineProperty(this, "__kind__", d("", kind)); | |
}; | |
if (setPrototypeOf) setPrototypeOf(ArrayIterator, Iterator); | |
// Internal %ArrayIteratorPrototype% doesn't expose its constructor | |
delete ArrayIterator.prototype.constructor; | |
ArrayIterator.prototype = Object.create(Iterator.prototype, { | |
_resolve: d(function (i) { | |
if (this.__kind__ === "value") return this.__list__[i]; | |
if (this.__kind__ === "key+value") return [i, this.__list__[i]]; | |
return i; | |
}) | |
}); | |
defineProperty(ArrayIterator.prototype, Symbol.toStringTag, d("c", "Array Iterator")); | |