From b64bb6021d1c375093246f3b85951315bb17580b Mon Sep 17 00:00:00 2001
From: John Mair <jrmair@gmail.com>
Date: Mon, 11 Apr 2011 19:38:04 +1200
Subject: [PATCH] changed Pry.run_command so it works on both rbx (using
 Object#clone) and YARV 1.9 (using Object#dup).

Both implementations have bugs.
---
 lib/pry/pry_class.rb | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/pry/pry_class.rb b/lib/pry/pry_class.rb
index da0e2bc4..fcbf53a7 100644
--- a/lib/pry/pry_class.rb
+++ b/lib/pry/pry_class.rb
@@ -179,7 +179,13 @@ class Pry
     
     null_output = Object.new.tap { |v| v.instance_eval { def puts(*) end } }
     
-    commands = options[:commands].dup
+    # FIXME! ugly hack to get around broken methods in both YARD and RBX
+    if RUBY_VERSION =~ /1.9/
+      commands = options[:commands].dup
+    else
+      commands = options[:commands].clone
+    end
+      
     commands.output = options[:show_output] ? options[:output] : null_output
     commands.target = Pry.binding_for(options[:context])