* lib/rexml/parsers/baseparser.rb: rexml BaseParser uses

  instance_eval unnecessarily on listener add.
  patch from Charles Nutter. [Bug #5696] [ruby-core:41437]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34202 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 13 deletions

diff --git a/lib/rexml/parsers/baseparser.rb b/lib/rexml/parsers/baseparser.rb
index 6cddf6fc2c..a992f4c710 100644
--- a/lib/rexml/parsers/baseparser.rb
+++ b/lib/rexml/parsers/baseparser.rb
@@ -114,22 +114,10 @@ module REXML
 
       def initialize( source )
         self.stream = source
+        @listeners = []
       end
 
       def add_listener( listener )
-        if !defined?(@listeners) or !@listeners
-          @listeners = []
-          instance_eval <<-EOL
-            alias :_old_pull :pull
-            def pull
-              event = _old_pull
-              @listeners.each do |listener|
-                listener.receive event
-              end
-              event
-            end
-          EOL
-        end
         @listeners << listener
       end
 
@@ -192,6 +180,14 @@ module REXML
 
       # Returns the next event.  This is a +PullEvent+ object.
       def pull
+        _pull_inner.tap do |event|
+          @listeners.each do |listener|
+            listener.receive event
+          end
+        end
+      end
+
+      def _pull_inner
         if @closed
           x, @closed = @closed, nil
           return [ :end_element, x ]