1 files changed, 95 insertions, 79 deletions
diff --git a/node_modules/es6-iterator/index.js b/node_modules/es6-iterator/index.js
index 10fd08958..790475fdd 100644
--- a/node_modules/es6-iterator/index.js
+++ b/node_modules/es6-iterator/index.js
@@ -1,90 +1,106 @@
-'use strict';
+"use strict";
 
-var clear    = require('es5-ext/array/#/clear')
-  , assign   = require('es5-ext/object/assign')
-  , callable = require('es5-ext/object/valid-callable')
-  , value    = require('es5-ext/object/valid-value')
-  , d        = require('d')
-  , autoBind = require('d/auto-bind')
-  , Symbol   = require('es6-symbol')
+var clear    = require("es5-ext/array/#/clear")
+  , assign   = require("es5-ext/object/assign")
+  , callable = require("es5-ext/object/valid-callable")
+  , value    = require("es5-ext/object/valid-value")
+  , d        = require("d")
+  , autoBind = require("d/auto-bind")
+  , Symbol   = require("es6-symbol");
 
-  , defineProperty = Object.defineProperty
-  , defineProperties = Object.defineProperties
-  , Iterator;
+var defineProperty = Object.defineProperty, defineProperties = Object.defineProperties, Iterator;
 
 module.exports = Iterator = function (list, context) {
-	if (!(this instanceof Iterator)) return new Iterator(list, context);
+	if (!(this instanceof Iterator)) throw new TypeError("Constructor requires 'new'");
 	defineProperties(this, {
-		__list__: d('w', value(list)),
-		__context__: d('w', context),
-		__nextIndex__: d('w', 0)
+		__list__: d("w", value(list)),
+		__context__: d("w", context),
+		__nextIndex__: d("w", 0)
 	});
 	if (!context) return;
 	callable(context.on);
-	context.on('_add', this._onAdd);
-	context.on('_delete', this._onDelete);
-	context.on('_clear', this._onClear);
+	context.on("_add", this._onAdd);
+	context.on("_delete", this._onDelete);
+	context.on("_clear", this._onClear);
 };
 
-defineProperties(Iterator.prototype, assign({
-	constructor: d(Iterator),
-	_next: d(function () {
-		var i;
-		if (!this.__list__) return;
-		if (this.__redo__) {
-			i = this.__redo__.shift();
-			if (i !== undefined) return i;
-		}
-		if (this.__nextIndex__ < this.__list__.length) return this.__nextIndex__++;
-		this._unBind();
-	}),
-	next: d(function () { return this._createResult(this._next()); }),
-	_createResult: d(function (i) {
-		if (i === undefined) return { done: true, value: undefined };
-		return { done: false, value: this._resolve(i) };
-	}),
-	_resolve: d(function (i) { return this.__list__[i]; }),
-	_unBind: d(function () {
-		this.__list__ = null;
-		delete this.__redo__;
-		if (!this.__context__) return;
-		this.__context__.off('_add', this._onAdd);
-		this.__context__.off('_delete', this._onDelete);
-		this.__context__.off('_clear', this._onClear);
-		this.__context__ = null;
-	}),
-	toString: d(function () { return '[object Iterator]'; })
-}, autoBind({
-	_onAdd: d(function (index) {
-		if (index >= this.__nextIndex__) return;
-		++this.__nextIndex__;
-		if (!this.__redo__) {
-			defineProperty(this, '__redo__', d('c', [index]));
-			return;
-		}
-		this.__redo__.forEach(function (redo, i) {
-			if (redo >= index) this.__redo__[i] = ++redo;
-		}, this);
-		this.__redo__.push(index);
-	}),
-	_onDelete: d(function (index) {
-		var i;
-		if (index >= this.__nextIndex__) return;
-		--this.__nextIndex__;
-		if (!this.__redo__) return;
-		i = this.__redo__.indexOf(index);
-		if (i !== -1) this.__redo__.splice(i, 1);
-		this.__redo__.forEach(function (redo, i) {
-			if (redo > index) this.__redo__[i] = --redo;
-		}, this);
-	}),
-	_onClear: d(function () {
-		if (this.__redo__) clear.call(this.__redo__);
-		this.__nextIndex__ = 0;
-	})
-})));
+// Internal %IteratorPrototype% doesn't expose its constructor
+delete Iterator.prototype.constructor;
+
+defineProperties(
+	Iterator.prototype,
+	assign(
+		{
+			_next: d(function () {
+				var i;
+				if (!this.__list__) return undefined;
+				if (this.__redo__) {
+					i = this.__redo__.shift();
+					if (i !== undefined) return i;
+				}
+				if (this.__nextIndex__ < this.__list__.length) return this.__nextIndex__++;
+				this._unBind();
+				return undefined;
+			}),
+			next: d(function () {
+				return this._createResult(this._next());
+			}),
+			_createResult: d(function (i) {
+				if (i === undefined) return { done: true, value: undefined };
+				return { done: false, value: this._resolve(i) };
+			}),
+			_resolve: d(function (i) {
+				return this.__list__[i];
+			}),
+			_unBind: d(function () {
+				this.__list__ = null;
+				delete this.__redo__;
+				if (!this.__context__) return;
+				this.__context__.off("_add", this._onAdd);
+				this.__context__.off("_delete", this._onDelete);
+				this.__context__.off("_clear", this._onClear);
+				this.__context__ = null;
+			}),
+			toString: d(function () {
+				return "[object " + (this[Symbol.toStringTag] || "Object") + "]";
+			})
+		},
+		autoBind({
+			_onAdd: d(function (index) {
+				if (index >= this.__nextIndex__) return;
+				++this.__nextIndex__;
+				if (!this.__redo__) {
+					defineProperty(this, "__redo__", d("c", [index]));
+					return;
+				}
+				this.__redo__.forEach(function (redo, i) {
+					if (redo >= index) this.__redo__[i] = ++redo;
+				}, this);
+				this.__redo__.push(index);
+			}),
+			_onDelete: d(function (index) {
+				var i;
+				if (index >= this.__nextIndex__) return;
+				--this.__nextIndex__;
+				if (!this.__redo__) return;
+				i = this.__redo__.indexOf(index);
+				if (i !== -1) this.__redo__.splice(i, 1);
+				this.__redo__.forEach(function (redo, j) {
+					if (redo > index) this.__redo__[j] = --redo;
+				}, this);
+			}),
+			_onClear: d(function () {
+				if (this.__redo__) clear.call(this.__redo__);
+				this.__nextIndex__ = 0;
+			})
+		})
+	)
+);
 
-defineProperty(Iterator.prototype, Symbol.iterator, d(function () {
-	return this;
-}));
-defineProperty(Iterator.prototype, Symbol.toStringTag, d('', 'Iterator'));
+defineProperty(
+	Iterator.prototype,
+	Symbol.iterator,
+	d(function () {
+		return this;
+	})
+);