From 18f2ac65c3c168099b6b16a19c671dda63c3fa6f Mon Sep 17 00:00:00 2001
From: Juriy Zaytsev <kangax@gmail.com>
Date: Fri, 13 Nov 2009 14:28:27 -0500
Subject: [PATCH] Optimize Element#immediateDescendants.

---
 CHANGELOG      |  2 ++
 src/dom/dom.js | 12 ++++++++----
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index f1d99bf..31a86cb 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* Optimize Element#immediateDescendants. (kangax, Tobie Langel)
+
 * Remove unnecessary function object creation and `Number#times` in `Element._getContentFromAnonymousElement`. (kangax)
 
 * Eliminate runtime forking and long method lookup in `Element.hasAttribute`. (kangax)
diff --git a/src/dom/dom.js b/src/dom/dom.js
index 6489c4f..9ba4659 100644
--- a/src/dom/dom.js
+++ b/src/dom/dom.js
@@ -536,10 +536,14 @@ Element.Methods = {
    *  **This method is deprecated, please see [[Element.childElements]]**.
   **/
   immediateDescendants: function(element) {
-    if (!(element = $(element).firstChild)) return [];
-    while (element && element.nodeType != 1) element = element.nextSibling;
-    if (element) return [element].concat($(element).nextSiblings());
-    return [];
+    var results = [], child = $(element).firstChild;
+    while (child) {
+      if (child.nodeType === 1) {
+        results.push(Element.extend(child));
+      }
+      child = child.nextSibling;
+    }
+    return results;
   },
 
   /**