From 997cd975b436235a697c94fe89d8fc6a50bf0b2f Mon Sep 17 00:00:00 2001
From: John Mair <jrmair@gmail.com>
Date: Sat, 11 Aug 2012 10:51:32 +1200
Subject: [PATCH] Break out of REPL loop if binding_stack.empty?

Occasionally pry would go into a broken state where the binding_stack would be empty.
This commit breaks out of the REPL rather than leaving the user in a broken state.
---
 lib/pry/pry_instance.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/pry/pry_instance.rb b/lib/pry/pry_instance.rb
index 8c905517..d0e47f50 100644
--- a/lib/pry/pry_instance.rb
+++ b/lib/pry/pry_instance.rb
@@ -228,6 +228,7 @@ class Pry
     exception = catch(:raise_up) do
       break_data = catch(:breakout) do
         loop do
+          throw(:breakout) if binding_stack.empty?
           rep(binding_stack.last)
         end
       end