1 files changed, 141 insertions, 0 deletions
diff --git a/deps/npm/node_modules/object-keys/index.js b/deps/npm/node_modules/object-keys/index.js
new file mode 100644
index 0000000000..3f2463eb80
--- /dev/null
+++ b/deps/npm/node_modules/object-keys/index.js
@@ -0,0 +1,141 @@
+'use strict';
+
+// modified from https://github.com/es-shims/es5-shim
+var has = Object.prototype.hasOwnProperty;
+var toStr = Object.prototype.toString;
+var slice = Array.prototype.slice;
+var isArgs = require('./isArguments');
+var isEnumerable = Object.prototype.propertyIsEnumerable;
+var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
+var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
+var dontEnums = [
+	'toString',
+	'toLocaleString',
+	'valueOf',
+	'hasOwnProperty',
+	'isPrototypeOf',
+	'propertyIsEnumerable',
+	'constructor'
+];
+var equalsConstructorPrototype = function (o) {
+	var ctor = o.constructor;
+	return ctor && ctor.prototype === o;
+};
+var excludedKeys = {
+	$applicationCache: true,
+	$console: true,
+	$external: true,
+	$frame: true,
+	$frameElement: true,
+	$frames: true,
+	$innerHeight: true,
+	$innerWidth: true,
+	$outerHeight: true,
+	$outerWidth: true,
+	$pageXOffset: true,
+	$pageYOffset: true,
+	$parent: true,
+	$scrollLeft: true,
+	$scrollTop: true,
+	$scrollX: true,
+	$scrollY: true,
+	$self: true,
+	$webkitIndexedDB: true,
+	$webkitStorageInfo: true,
+	$window: true
+};
+var hasAutomationEqualityBug = (function () {
+	/* global window */
+	if (typeof window === 'undefined') { return false; }
+	for (var k in window) {
+		try {
+			if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
+				try {
+					equalsConstructorPrototype(window[k]);
+				} catch (e) {
+					return true;
+				}
+			}
+		} catch (e) {
+			return true;
+		}
+	}
+	return false;
+}());
+var equalsConstructorPrototypeIfNotBuggy = function (o) {
+	/* global window */
+	if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
+		return equalsConstructorPrototype(o);
+	}
+	try {
+		return equalsConstructorPrototype(o);
+	} catch (e) {
+		return false;
+	}
+};
+
+var keysShim = function keys(object) {
+	var isObject = object !== null && typeof object === 'object';
+	var isFunction = toStr.call(object) === '[object Function]';
+	var isArguments = isArgs(object);
+	var isString = isObject && toStr.call(object) === '[object String]';
+	var theKeys = [];
+
+	if (!isObject && !isFunction && !isArguments) {
+		throw new TypeError('Object.keys called on a non-object');
+	}
+
+	var skipProto = hasProtoEnumBug && isFunction;
+	if (isString && object.length > 0 && !has.call(object, 0)) {
+		for (var i = 0; i < object.length; ++i) {
+			theKeys.push(String(i));
+		}
+	}
+
+	if (isArguments && object.length > 0) {
+		for (var j = 0; j < object.length; ++j) {
+			theKeys.push(String(j));
+		}
+	} else {
+		for (var name in object) {
+			if (!(skipProto && name === 'prototype') && has.call(object, name)) {
+				theKeys.push(String(name));
+			}
+		}
+	}
+
+	if (hasDontEnumBug) {
+		var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
+
+		for (var k = 0; k < dontEnums.length; ++k) {
+			if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
+				theKeys.push(dontEnums[k]);
+			}
+		}
+	}
+	return theKeys;
+};
+
+keysShim.shim = function shimObjectKeys() {
+	if (Object.keys) {
+		var keysWorksWithArguments = (function () {
+			// Safari 5.0 bug
+			return (Object.keys(arguments) || '').length === 2;
+		}(1, 2));
+		if (!keysWorksWithArguments) {
+			var originalKeys = Object.keys;
+			Object.keys = function keys(object) { // eslint-disable-line func-name-matching
+				if (isArgs(object)) {
+					return originalKeys(slice.call(object));
+				} else {
+					return originalKeys(object);
+				}
+			};
+		}
+	} else {
+		Object.keys = keysShim;
+	}
+	return Object.keys || keysShim;
+};
+
+module.exports = keysShim;