From bb8d1b567489a94507941f4a6bda2224ed2d9692 Mon Sep 17 00:00:00 2001
From: James Halliday <substack@gmail.com>
Date: Sun, 10 Apr 2011 02:20:57 -0700
Subject: [PATCH] now traverses over dates correctly and should work for other
 builtins

---
 index.js     | 21 ++++++++++++++++++++-
 package.json |  2 +-
 test/date.js |  7 ++++++-
 3 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/index.js b/index.js
index d72265c..1084c0a 100644
--- a/index.js
+++ b/index.js
@@ -51,7 +51,26 @@ Traverse.prototype.clone = function () {
         }
         
         if (typeof src === 'object' && src !== null) {
-            var dst = Array.isArray(src) ? [] : Object.create(src.__proto__);
+            var dst;
+            
+            if (Array.isArray(src)) {
+                dst = [];
+            }
+            else if (src instanceof Date) {
+                dst = new Date(src);
+            }
+            else if (src instanceof Boolean) {
+                dst = new Boolean(src);
+            }
+            else if (src instanceof Number) {
+                dst = new Number(src);
+            }
+            else if (src instanceof String) {
+                dst = new String(src);
+            }
+            else {
+                dst = Object.create(src.__proto__);
+            }
             
             parents.push(src);
             nodes.push(dst);
diff --git a/package.json b/package.json
index af3c763..24d7104 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name" : "traverse",
-    "version" : "0.3.1",
+    "version" : "0.3.2",
     "description" : "Traverse and transform objects by visiting every node on a recursive walk",
     "author" : "James Halliday",
     "license" : "MIT/X11",
diff --git a/test/date.js b/test/date.js
index f48c973..72630e7 100644
--- a/test/date.js
+++ b/test/date.js
@@ -25,6 +25,11 @@ exports.dateMap = function () {
         if (typeof node === 'number') this.update(node + 100);
     });
     
-    assert.eql(res, { x : obj.x, y : 110, z : 5 });
+    assert.ok(obj.x !== res.x);
+    assert.eql(res, {
+        x : obj.x,
+        y : 110,
+        z : 105,
+    });
 };