1 files changed, 144 insertions, 0 deletions
diff --git a/deps/npm/node_modules/clone/clone.js b/deps/npm/node_modules/clone/clone.js
new file mode 100644
index 0000000000..321ffa30f5
--- /dev/null
+++ b/deps/npm/node_modules/clone/clone.js
@@ -0,0 +1,144 @@
+'use strict';
+
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
+
+// shim for Node's 'util' package
+// DO NOT REMOVE THIS! It is required for compatibility with EnderJS (http://enderjs.com/).
+var util = {
+  isArray: function (ar) {
+    return Array.isArray(ar) || (typeof ar === 'object' && objectToString(ar) === '[object Array]');
+  },
+  isDate: function (d) {
+    return typeof d === 'object' && objectToString(d) === '[object Date]';
+  },
+  isRegExp: function (re) {
+    return typeof re === 'object' && objectToString(re) === '[object RegExp]';
+  },
+  getRegExpFlags: function (re) {
+    var flags = '';
+    re.global && (flags += 'g');
+    re.ignoreCase && (flags += 'i');
+    re.multiline && (flags += 'm');
+    return flags;
+  }
+};
+
+
+if (typeof module === 'object')
+  module.exports = clone;
+
+/**
+ * Clones (copies) an Object using deep copying.
+ *
+ * This function supports circular references by default, but if you are certain
+ * there are no circular references in your object, you can save some CPU time
+ * by calling clone(obj, false).
+ *
+ * Caution: if `circular` is false and `parent` contains circular references,
+ * your program may enter an infinite loop and crash.
+ *
+ * @param `parent` - the object to be cloned
+ * @param `circular` - set to true if the object to be cloned may contain
+ *    circular references. (optional - true by default)
+ * @param `depth` - set to a number if the object is only to be cloned to
+ *    a particular depth. (optional - defaults to Infinity)
+ * @param `prototype` - sets the prototype to be used when cloning an object.
+ *    (optional - defaults to parent prototype).
+*/
+
+function clone(parent, circular, depth, prototype) {
+  // maintain two arrays for circular references, where corresponding parents
+  // and children have the same index
+  var allParents = [];
+  var allChildren = [];
+
+  var useBuffer = typeof Buffer != 'undefined';
+
+  if (typeof circular == 'undefined')
+    circular = true;
+
+  if (typeof depth == 'undefined')
+    depth = Infinity;
+
+  // recurse this function so we don't reset allParents and allChildren
+  function _clone(parent, depth) {
+    // cloning null always returns null
+    if (parent === null)
+      return null;
+
+    if (depth == 0)
+      return parent;
+
+    var child;
+    var proto;
+    if (typeof parent != 'object') {
+      return parent;
+    }
+
+    if (util.isArray(parent)) {
+      child = [];
+    } else if (util.isRegExp(parent)) {
+      child = new RegExp(parent.source, util.getRegExpFlags(parent));
+      if (parent.lastIndex) child.lastIndex = parent.lastIndex;
+    } else if (util.isDate(parent)) {
+      child = new Date(parent.getTime());
+    } else if (useBuffer && Buffer.isBuffer(parent)) {
+      child = new Buffer(parent.length);
+      parent.copy(child);
+      return child;
+    } else {
+      if (typeof prototype == 'undefined') {
+        proto = Object.getPrototypeOf(parent);
+        child = Object.create(proto);
+      }
+      else {
+        child = Object.create(prototype);
+        proto = prototype;
+      }
+    }
+
+    if (circular) {
+      var index = allParents.indexOf(parent);
+
+      if (index != -1) {
+        return allChildren[index];
+      }
+      allParents.push(parent);
+      allChildren.push(child);
+    }
+
+    for (var i in parent) {
+      var attrs;
+      if (proto) {
+        attrs = Object.getOwnPropertyDescriptor(proto, i);
+      }
+
+      if (attrs && attrs.set == null) {
+        continue;
+      }
+      child[i] = _clone(parent[i], depth - 1);
+    }
+
+    return child;
+  }
+
+  return _clone(parent, depth);
+}
+
+/**
+ * Simple flat clone using prototype, accepts only objects, usefull for property
+ * override on FLAT configuration object (no nested props).
+ *
+ * USE WITH CAUTION! This may not behave as you wish if you do not know how this
+ * works.
+ */
+clone.clonePrototype = function(parent) {
+  if (parent === null)
+    return null;
+
+  var c = function () {};
+  c.prototype = parent;
+  return new c();
+};