* lib/rexml/source.rb (REXML::SourceFactory::SourceFactory): more

duck typed.  better performance on JRuby.
  http://headius.blogspot.com/2007/10/another-performance-discovery-rexml.html

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Thu Oct 18 16:39:34 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* lib/rexml/source.rb (REXML::SourceFactory::SourceFactory): more
+	  duck typed.  better performance on JRuby.
+	  http://headius.blogspot.com/2007/10/another-performance-discovery-rexml.html
+
 Thu Oct 18 09:33:25 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* range.c (range_first): takes first n element if argument is

lib/rexml/source.rb

@@ -7,13 +7,14 @@ module REXML
     # @param arg Either a String, or an IO
     # @return a Source, or nil if a bad argument was given
     def SourceFactory::create_from(arg)
-      if arg.kind_of? String
-        Source.new(arg)
-      elsif arg.respond_to? :read and
-            arg.respond_to? :readline and
-            arg.respond_to? :nil? and
-            arg.respond_to? :eof?
+      if arg.respond_to? :read and
+          arg.respond_to? :readline and
+          arg.respond_to? :nil? and
+          arg.respond_to? :eof?
         IOSource.new(arg)
+      elsif arg.respond_to? :to_str
+        require 'stringio'
+        IOSource.new(StringIO.new(arg))
       elsif arg.kind_of? Source
         arg
       else