From 4a1e2a1527efa70ad59f08a7342a297d0d91f60f Mon Sep 17 00:00:00 2001
From: Tatsuhiko Miyagawa <miyagawa@bulknews.net>
Date: Fri, 9 Oct 2009 12:55:49 -0700
Subject: [PATCH] ->wrap can now be called on instance too

---
 lib/Plack/Middleware.pm | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/Plack/Middleware.pm b/lib/Plack/Middleware.pm
index 1cb54c0f9..bc4f5f8c7 100644
--- a/lib/Plack/Middleware.pm
+++ b/lib/Plack/Middleware.pm
@@ -14,8 +14,13 @@ sub import {
 }
 
 sub wrap {
-    my($class, $app, @args) = @_;
-    $class->new({ app => $app, @args })->to_app;
+    my($self, $app, @args) = @_;
+    if (ref $self) {
+        $self->{app} = $app;
+    } else {
+        $self = $self->new({ app => $app, @args });
+    }
+    return $self->to_app;
 }
 
 sub to_app {