* ext/psych/lib/psych/core_ext.rb (yaml_as): supporting deprecated

"yaml_as" method
* ext/syck/lib/syck/tag.rb: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27365 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Sat Apr 17 05:30:22 2010  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/psych/lib/psych/core_ext.rb (yaml_as): supporting deprecated
+	  "yaml_as" method
+	* ext/syck/lib/syck/tag.rb: ditto
+
 Sat Apr 17 05:25:15 2010  Aaron Patterson <aaron@tenderlovemaking.com>
 
 	* ext/psych/lib/psych/coder.rb (scalar): supporting deprecated methods

ext/psych/lib/psych/core_ext.rb

@@ -16,6 +16,19 @@ class Object
   alias :to_yaml :psych_to_yaml
 end
 
+class Module
+  def psych_yaml_as url
+    return if caller[0].end_with?('rubytypes.rb')
+    if $VERBOSE
+      warn "#{caller[0]}: yaml_as is deprecated, please use yaml_tag"
+    end
+    Psych.add_tag(url, self)
+  end
+
+  remove_method :yaml_as rescue nil
+  alias :yaml_as :psych_yaml_as
+end
+
 module Kernel
   def psych_y *objects
     puts Psych.dump_stream(*objects)

ext/syck/lib/syck/tag.rb

@@ -56,7 +56,7 @@ class Module
     # Adds a taguri _tag_ to a class, used when dumping or loading the class
     # in YAML.  See YAML::tag_class for detailed information on typing and
     # taguris.
-    def yaml_as( tag, sc = true )
+    def syck_yaml_as( tag, sc = true )
         verbose, $VERBOSE = $VERBOSE, nil
         class_eval <<-"END", __FILE__, __LINE__+1
             attr_writer :taguri
@@ -78,6 +78,9 @@ class Module
     ensure
         $VERBOSE = verbose
     end
+    remove_method :yaml_as rescue nil
+    alias :yaml_as :syck_yaml_as
+
     # Transforms the subclass name into a name suitable for display
     # in a subclassed tag.
     def yaml_tag_class_name

test/psych/test_deprecated.rb

@@ -139,5 +139,13 @@ module Psych
       assert_equal 'some string', coder.scalar
       assert_equal :scalar, coder.type
     end
+
+    class YamlAs
+      yaml_as 'helloworld'
+    end
+
+    def test_yaml_as
+      assert_match(/helloworld/, Psych.dump(YamlAs.new))
+    end
   end
 end