From a7f03f4aeba3f128b527bfb2fd45a07782cf96f6 Mon Sep 17 00:00:00 2001
From: Kevin Sawicki <kevin@github.com>
Date: Fri, 18 Jan 2013 09:08:34 -0800
Subject: [PATCH] Use __moduleExists from require

---
 src/stdlib/require.coffee | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/stdlib/require.coffee b/src/stdlib/require.coffee
index 94e7f1b65..14b1a0506 100644
--- a/src/stdlib/require.coffee
+++ b/src/stdlib/require.coffee
@@ -28,7 +28,7 @@ require = (path, cb) ->
   parts = file.split '.'
   ext   = parts[parts.length-1]
 
-  if __modules[file]?
+  if __moduleExists file
     if not __modules.loaded[file.toLowerCase()]?
       console.warn "Circular require: #{__filename} required #{file}"
     return __modules[file]
@@ -102,7 +102,7 @@ resolve = (name, {verifyExistence}={}) ->
     null
 
 __moduleExists = (path) ->
-  __modules[path] isnt undefined
+  __modules[path]?
 
 __moduleExpand = (path) ->
   return path if __moduleExists path