Make Liquid::ParseContext#tags default to Liquid::Template.tags

lib/liquid/block_body.rb

@@ -45,7 +45,7 @@ module Liquid
           end
           tag_name = Regexp.last_match(1)
           markup   = Regexp.last_match(2)
-          unless (tag = registered_tag(tag_name, parse_context))
+          unless (tag = parse_context.tags[tag_name])
             # end parsing if we reach an unknown tag and let the caller decide
             # determine how to proceed
             return yield tag_name, markup
@@ -132,7 +132,7 @@ module Liquid
             next
           end
 
-          unless (tag = registered_tag(tag_name, parse_context))
+          unless (tag = parse_context.tags[tag_name])
             # end parsing if we reach an unknown tag and let the caller decide
             # determine how to proceed
             return yield tag_name, markup
@@ -247,10 +247,5 @@ module Liquid
     def raise_missing_variable_terminator(token, parse_context)
       BlockBody.raise_missing_variable_terminator(token, parse_context)
     end
-
-    def registered_tag(tag_name, parse_context)
-      context_tag = parse_context.tags[tag_name] if parse_context.tags.respond_to?(:[])
-      context_tag || Template.tags[tag_name]
-    end
   end
 end

lib/liquid/parse_context.rb

@@ -10,7 +10,7 @@ module Liquid
 
       @locale   = @template_options[:locale] ||= I18n.new
       @warnings = []
-      @tags = @template_options[:tags]
+      @tags = @template_options[:tags] || Liquid::Template.tags
 
       self.depth   = 0
       self.partial = false