Make new mime types first class [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4407 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_controller/mime_responds.rb

@@ -94,7 +94,7 @@ module ActionController #:nodoc:
       # and accept Rails' defaults, life will be much easier.
       def respond_to(*types, &block)
         raise ArgumentError, "respond_to takes either types or a block, never bot" unless types.any? ^ block
-        block ||= lambda { |responder| types.each { |type| responder.send(type) } }
+        block ||= lambda { |responder| types.each { |type| responder.known(type) } }
         responder = Responder.new(block.binding)
         block.call(responder)
         responder.respond
@@ -132,12 +132,8 @@ module ActionController #:nodoc:
         end
       end
       
-      for mime_type in %w( all html js xml rss atom yaml )
-        eval <<-EOT
-          def #{mime_type}(&block)
-            custom(Mime::#{mime_type.upcase}, &block)
-          end
-        EOT
+      def known(mime_type_extension, &block)
+        custom(Mime.const_get(mime_type_extension.to_s.upcase), &block)
       end
 
       def any(*args, &block)

actionpack/lib/action_controller/mime_type.rb

@@ -33,7 +33,8 @@ module Mime
 
       def register(string, symbol, synonyms = [])
         Mime.send :const_set, symbol.to_s.upcase, Type.new(string, symbol, synonyms)
-        LOOKUP[string] = Mime.send :const_get, symbol.to_s.upcase
+        SET << Mime.send(:const_get, symbol.to_s.upcase)
+        LOOKUP[string] = EXTENSION_LOOKUP[symbol.to_s] = SET.last
       end
 
       def parse(accept_header)
@@ -126,6 +127,7 @@ module Mime
   ATOM  = Type.new "application/atom+xml", :atom
   YAML  = Type.new "application/x-yaml", :yaml, %w( text/yaml )
 
+  SET   = [ ALL, TEXT, HTML, JS, ICS, XML, RSS, ATOM, YAML ]
 
   LOOKUP = Hash.new { |h, k| h[k] = Type.new(k) unless k == "" }
 

actionpack/test/controller/mime_type_test.rb

@@ -24,7 +24,10 @@ class MimeTypeTest < Test::Unit::TestCase
   
   def test_custom_type
     Mime::Type.register("image/gif", :gif)
-    assert_nothing_raised { Mime::GIF }
+    assert_nothing_raised do 
+      Mime::GIF
+      assert_equal Mime::GIF, Mime::SET.last
+    end
     Mime.send :remove_const, :GIF
   end
 end