From bec19f4962ab3ef773f016761e1761ddf516e0b9 Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 18 Mar 2018 15:04:49 +0000
Subject: merge revision(s) 55372: [Backport #14179] 	* lib/forwardable.rb
 (_delegator_method): leave the backtrace 	  untouched during accessor. 
 forwardable.rb does not appear in 	  the backtrace during delegated
 method because of tail-call 	  optimization.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@62820 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/forwardable.rb | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'lib')

diff --git a/lib/forwardable.rb b/lib/forwardable.rb
index e78b9ed1e0..e2b210423f 100644
--- a/lib/forwardable.rb
+++ b/lib/forwardable.rb
@@ -113,12 +113,9 @@ module Forwardable
   # Version of +forwardable.rb+
   FORWARDABLE_VERSION = "1.1.0"
 
-  FILE_REGEXP = %r"#{Regexp.quote(__FILE__)}"
-
   @debug = nil
   class << self
-    # If true, <tt>__FILE__</tt> will remain in the backtrace in the event an
-    # Exception is raised.
+    # ignored
     attr_accessor :debug
   end
 
@@ -203,8 +200,6 @@ module Forwardable
         def #{ali}(*args, &block)
           begin
             #{accessor}
-          ensure
-            $@.delete_if {|s| ::Forwardable::FILE_REGEXP =~ s} if $@ and !::Forwardable::debug
           end.__send__ :#{method}, *args, &block
         end
       end
-- 
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