From 84dcca35d2eecb0cd2ebb2a5de8b08ee01308b3f Mon Sep 17 00:00:00 2001
From: Mike Gerwitz <mike@mikegerwitz.com>
Date: Wed, 1 Dec 2010 23:01:20 -0500
Subject: [PATCH] Interface prototype contains defined methods

---
 lib/interface.js              |  7 ++++++-
 test/test-interface-extend.js | 11 +++++++++++
 test/test-interface.js        |  4 ++--
 3 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/lib/interface.js b/lib/interface.js
index 24d8d3c..f164fff 100644
--- a/lib/interface.js
+++ b/lib/interface.js
@@ -54,7 +54,12 @@ function extend()
         base      = args.pop() || Interface,
         prototype = new base();
 
-    var new_interface = {};
+    var new_interface = function() {};
+
+    util.propCopy( props, prototype );
+
+    new_interface.prototype   = prototype;
+    new_interface.constructor = new_interface;
 
     // freeze the interface (preventing additions), if supported
     util.freeze( new_interface );
diff --git a/test/test-interface-extend.js b/test/test-interface-extend.js
index 2b2310e..8e231f1 100644
--- a/test/test-interface-extend.js
+++ b/test/test-interface-extend.js
@@ -59,3 +59,14 @@ assert.doesNotThrow(
     "Abstract method declarations are allowed within Interface definitions"
 );
 
+
+var BaseType = Interface.extend(
+{
+    method: abstractMethod(),
+});
+
+assert.ok(
+    ( BaseType.prototype.method instanceof Function ),
+    "Interface contains defined abstract methods"
+);
+
diff --git a/test/test-interface.js b/test/test-interface.js
index 05b6cb2..b6a37cb 100644
--- a/test/test-interface.js
+++ b/test/test-interface.js
@@ -32,8 +32,8 @@ var FooType = Interface.extend();
 
 
 assert.ok(
-    ( FooType instanceof Object ),
-    "Interface extend method creates a new object"
+    ( FooType instanceof Function ),
+    "Interface extend method creates a new interface object"
 );
 
 assert.equal(