* lib/forwardable (def_instance_delegator, def_single_delegator):

rescue ::Exception instead of Exception in case Exception is
  defined under the target class.
  [ruby-core:71175] [Ruby trunk - Bug #11615]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52249 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Sat Oct 24 00:38:34 2015  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* lib/forwardable (def_instance_delegator, def_single_delegator):
+	  rescue ::Exception instead of Exception in case Exception is
+	  defined under the target class.
+	  [ruby-core:71175] [Ruby trunk - Bug #11615]
+
 Fri Oct 23 21:10:37 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* error.c (name_err_mesg_to_str): separate class names from the

lib/forwardable.rb

@@ -181,7 +181,7 @@ module Forwardable
       def #{ali}(*args, &block)
         begin
           #{accessor}.__send__(:#{method}, *args, &block)
-        rescue Exception
+        rescue ::Exception
           $@.delete_if{|s| Forwardable::FILE_REGEXP =~ s} unless Forwardable::debug
           ::Kernel::raise
         end
@@ -273,7 +273,7 @@ module SingleForwardable
       def #{ali}(*args, &block)
         begin
           #{accessor}.__send__(:#{method}, *args, &block)
-        rescue Exception
+        rescue ::Exception
           $@.delete_if{|s| Forwardable::FILE_REGEXP =~ s} unless Forwardable::debug
           ::Kernel::raise
         end

test/test_forwardable.rb

@@ -94,6 +94,22 @@ class TestForwardable < Test::Unit::TestCase
     end
   end
 
+  class Foo
+    extend Forwardable
+
+    def_delegator :bar, :baz
+
+    class Exception
+    end
+  end
+
+  def test_backtrace_adjustment
+    e = assert_raise(NameError) {
+      Foo.new.baz
+    }
+    assert_not_match(/\/forwardable\.rb/, e.backtrace[0])
+  end
+
   private
 
   def forwardable_class(&block)