lib/asciidoctor/syntax_highlighter.rb in asciidoctor-2.0.15 vs lib/asciidoctor/syntax_highlighter.rb in asciidoctor-2.0.16

@@ -97,13 +97,14 @@
   # Returns nothing.
   def write_stylesheet doc, to_dir
     raise ::NotImplementedError, %(#{SyntaxHighlighter} subclass #{self.class} must implement the ##{__method__} method since #write_stylesheet? returns true)
   end
 
-  private_class_method def self.included into
+  def self.included into
     into.extend Config
-  end || :included
+  end
+  private_class_method :included # use separate declaration for Ruby 2.0.x
 
   module Config
     # Public: Statically register the current class in the registry for the specified names.
     #
     # names - one or more String or Symbol names with which to register the current class as a syntax highlighter
@@ -150,11 +151,11 @@
         syntax_hl
       end
     end
 
     private
-    
+
     def registry
       raise ::NotImplementedError, %(#{Factory} subclass #{self.class} must implement the ##{__method__} method)
     end
   end
 
@@ -164,23 +165,21 @@
     def initialize seed_registry = nil
       @registry = seed_registry || {}
     end
 
     private
-    
-    def registry
-      @registry
-    end
+
+    attr_reader :registry
   end
 
   module DefaultFactory
     include Factory
 
-    private
-
     @@registry = {}
 
+    private
+
     def registry
       @@registry
     end
 
     unless RUBY_ENGINE == 'opal'
@@ -213,11 +212,9 @@
         'coderay' => %(#{__dir__}/syntax_highlighter/coderay),
         'prettify' => %(#{__dir__}/syntax_highlighter/prettify),
         'pygments' => %(#{__dir__}/syntax_highlighter/pygments),
         'rouge' => %(#{__dir__}/syntax_highlighter/rouge),
       }
-
-      private
 
       @@mutex = ::Mutex.new
     end
   end