From 001b54865c583a65657bba62582da5162139b332 Mon Sep 17 00:00:00 2001
From: Sam Stephenson <sam@37signals.com>
Date: Tue, 21 Aug 2007 16:15:59 +0000
Subject: [PATCH] prototype: Ensure that classes always have an initialize
 method.

---
 CHANGELOG           | 2 ++
 src/base.js         | 3 +++
 test/unit/base.html | 3 +++
 3 files changed, 8 insertions(+)

diff --git a/CHANGELOG b/CHANGELOG
index 5eef4dd..8833204 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Ensure that classes always have an initialize method.  [Mislav Marohnić]
+
 * Update Template, Selector, Ajax.*, and ObjectRange classes to use the new class system.  [Mislav Marohnić]
 
 * Change Abstract.TimedObserver to subclass PeriodicalExecuter and tweak its subclasses to use new inheritance functionality.  TimedObserver can now be stopped the same way as PeriodicalExecuter.  Closes #8589.  [Mislav Marohnić]
diff --git a/src/base.js b/src/base.js
index 1ff14cc..922d45c 100644
--- a/src/base.js
+++ b/src/base.js
@@ -21,6 +21,9 @@ var Class = {
       }
 
       if (properties) Class.extend(klass, properties);
+      if (!klass.prototype.initialize)
+        klass.prototype.initialize = Prototype.emptyFunction;
+        
       klass.prototype.constructor = klass;
 
       return klass;
diff --git a/test/unit/base.html b/test/unit/base.html
index bc62f5a..e1a51cb 100644
--- a/test/unit/base.html
+++ b/test/unit/base.html
@@ -415,6 +415,9 @@
       assertEqual('Nibbles: Hi!', pet.say('Hi!'));
       assertEqual(Animal, pet.constructor, "bad constructor reference");
       assertUndefined(pet.superclass);
+
+      var Empty = Class.create();
+      assert('object', typeof new Empty);
     }},
 
     testInheritance: function() { with(this) {