1 files changed, 59 insertions, 0 deletions
diff --git a/node_modules/es5-ext/object/is-copy-deep.js b/node_modules/es5-ext/object/is-copy-deep.js
new file mode 100644
index 000000000..a1206aead
--- /dev/null
+++ b/node_modules/es5-ext/object/is-copy-deep.js
@@ -0,0 +1,59 @@
+"use strict";
+
+var eq            = require("./eq")
+  , isPlainObject = require("./is-plain-object")
+  , value         = require("./valid-value");
+
+var isArray = Array.isArray
+  , keys = Object.keys
+  , objPropertyIsEnumerable = Object.prototype.propertyIsEnumerable
+  , objHasOwnProperty = Object.prototype.hasOwnProperty
+  , eqArr
+  , eqVal
+  , eqObj;
+
+eqArr = function (arr1, arr2, recMap) {
+	var i, length = arr1.length;
+	if (length !== arr2.length) return false;
+	for (i = 0; i < length; ++i) {
+		if (objHasOwnProperty.call(arr1, i) !== objHasOwnProperty.call(arr2, i)) return false;
+		if (!eqVal(arr1[i], arr2[i], recMap)) return false;
+	}
+	return true;
+};
+
+eqObj = function (obj1, obj2, recMap) {
+	var k1 = keys(obj1), k2 = keys(obj2);
+	if (k1.length !== k2.length) return false;
+	return k1.every(function (key) {
+		if (!objPropertyIsEnumerable.call(obj2, key)) return false;
+		return eqVal(obj1[key], obj2[key], recMap);
+	});
+};
+
+eqVal = function (val1, val2, recMap) {
+	var i, eqX, c1, c2;
+	if (eq(val1, val2)) return true;
+	if (isPlainObject(val1)) {
+		if (!isPlainObject(val2)) return false;
+		eqX = eqObj;
+	} else if (isArray(val1) && isArray(val2)) {
+		eqX = eqArr;
+	} else {
+		return false;
+	}
+	c1 = recMap[0];
+	c2 = recMap[1];
+	i = c1.indexOf(val1);
+	if (i === -1) {
+		i = c1.push(val1) - 1;
+		c2[i] = [];
+	} else if (c2[i].indexOf(val2) !== -1) return true;
+	c2[i].push(val2);
+	return eqX(val1, val2, recMap);
+};
+
+module.exports = function (val1, val2) {
+	if (eq(value(val1), value(val2))) return true;
+	return eqVal(Object(val1), Object(val2), [[], []]);
+};