From ed26866c899f1f34eaf5d3185c4b09766d749457 Mon Sep 17 00:00:00 2001
From: yui-knk <spiketeika@gmail.com>
Date: Wed, 29 Jan 2014 00:05:48 +0900
Subject: [PATCH] Fix watch_expression to access correct hooks

Now by refactoring config, Pry.config and @pry.config have different
hooks. So to access correct pry config hooks, fix
Pry::Command::WatchExpression.add_hook.
---
 lib/pry/commands/watch_expression.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/pry/commands/watch_expression.rb b/lib/pry/commands/watch_expression.rb
index 05d8e36e..24724123 100644
--- a/lib/pry/commands/watch_expression.rb
+++ b/lib/pry/commands/watch_expression.rb
@@ -82,8 +82,8 @@ class Pry
 
     def add_hook
       hook = [:after_eval, :watch_expression]
-      unless Pry.hooks.hook_exists?(*hook)
-        Pry.hooks.add_hook(*hook) do |_, _pry_|
+      unless _pry_.hooks.hook_exists?(*hook)
+        _pry_.hooks.add_hook(*hook) do |_, _pry_|
           eval_and_print_changed _pry_.output
         end
       end