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diff --git a/jni/ruby/lib/rdoc/code_object.rb b/jni/ruby/lib/rdoc/code_object.rb
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+##
+# Base class for the RDoc code tree.
+#
+# We contain the common stuff for contexts (which are containers) and other
+# elements (methods, attributes and so on)
+#
+# Here's the tree of the CodeObject subclasses:
+#
+# * RDoc::Context
+#   * RDoc::TopLevel
+#   * RDoc::ClassModule
+#     * RDoc::AnonClass (never used so far)
+#     * RDoc::NormalClass
+#     * RDoc::NormalModule
+#     * RDoc::SingleClass
+# * RDoc::MethodAttr
+#   * RDoc::Attr
+#   * RDoc::AnyMethod
+#     * RDoc::GhostMethod
+#     * RDoc::MetaMethod
+# * RDoc::Alias
+# * RDoc::Constant
+# * RDoc::Mixin
+#   * RDoc::Require
+#   * RDoc::Include
+
+class RDoc::CodeObject
+
+  include RDoc::Text
+
+  ##
+  # Our comment
+
+  attr_reader :comment
+
+  ##
+  # Do we document our children?
+
+  attr_reader :document_children
+
+  ##
+  # Do we document ourselves?
+
+  attr_reader :document_self
+
+  ##
+  # Are we done documenting (ie, did we come across a :enddoc:)?
+
+  attr_reader :done_documenting
+
+  ##
+  # Which file this code object was defined in
+
+  attr_reader :file
+
+  ##
+  # Force documentation of this CodeObject
+
+  attr_reader :force_documentation
+
+  ##
+  # Line in #file where this CodeObject was defined
+
+  attr_accessor :line
+
+  ##
+  # Hash of arbitrary metadata for this CodeObject
+
+  attr_reader :metadata
+
+  ##
+  # Offset in #file where this CodeObject was defined
+  #--
+  # TODO character or byte?
+
+  attr_accessor :offset
+
+  ##
+  # Sets the parent CodeObject
+
+  attr_writer :parent
+
+  ##
+  # Did we ever receive a +:nodoc:+ directive?
+
+  attr_reader :received_nodoc
+
+  ##
+  # Set the section this CodeObject is in
+
+  attr_writer :section
+
+  ##
+  # The RDoc::Store for this object.
+
+  attr_reader :store
+
+  ##
+  # We are the model of the code, but we know that at some point we will be
+  # worked on by viewers. By implementing the Viewable protocol, viewers can
+  # associated themselves with these objects.
+
+  attr_accessor :viewer
+
+  ##
+  # Creates a new CodeObject that will document itself and its children
+
+  def initialize
+    @metadata         = {}
+    @comment          = ''
+    @parent           = nil
+    @parent_name      = nil # for loading
+    @parent_class     = nil # for loading
+    @section          = nil
+    @section_title    = nil # for loading
+    @file             = nil
+    @full_name        = nil
+    @store            = nil
+    @track_visibility = true
+
+    initialize_visibility
+  end
+
+  ##
+  # Initializes state for visibility of this CodeObject and its children.
+
+  def initialize_visibility # :nodoc:
+    @document_children   = true
+    @document_self       = true
+    @done_documenting    = false
+    @force_documentation = false
+    @received_nodoc      = false
+    @ignored             = false
+    @suppressed          = false
+    @track_visibility    = true
+  end
+
+  ##
+  # Replaces our comment with +comment+, unless it is empty.
+
+  def comment=(comment)
+    @comment = case comment
+               when NilClass               then ''
+               when RDoc::Markup::Document then comment
+               when RDoc::Comment          then comment.normalize
+               else
+                 if comment and not comment.empty? then
+                   normalize_comment comment
+                 else
+                   # HACK correct fix is to have #initialize create @comment
+                   #      with the correct encoding
+                   if String === @comment and
+                      Object.const_defined? :Encoding and @comment.empty? then
+                     @comment.force_encoding comment.encoding
+                   end
+                   @comment
+                 end
+               end
+  end
+
+  ##
+  # Should this CodeObject be displayed in output?
+  #
+  # A code object should be displayed if:
+  #
+  # * The item didn't have a nodoc or wasn't in a container that had nodoc
+  # * The item wasn't ignored
+  # * The item has documentation and was not suppressed
+
+  def display?
+    @document_self and not @ignored and
+      (documented? or not @suppressed)
+  end
+
+  ##
+  # Enables or disables documentation of this CodeObject's children unless it
+  # has been turned off by :enddoc:
+
+  def document_children=(document_children)
+    return unless @track_visibility
+
+    @document_children = document_children unless @done_documenting
+  end
+
+  ##
+  # Enables or disables documentation of this CodeObject unless it has been
+  # turned off by :enddoc:.  If the argument is +nil+ it means the
+  # documentation is turned off by +:nodoc:+.
+
+  def document_self=(document_self)
+    return unless @track_visibility
+    return if @done_documenting
+
+    @document_self = document_self
+    @received_nodoc = true if document_self.nil?
+  end
+
+  ##
+  # Does this object have a comment with content or is #received_nodoc true?
+
+  def documented?
+    @received_nodoc or !@comment.empty?
+  end
+
+  ##
+  # Turns documentation on/off, and turns on/off #document_self
+  # and #document_children.
+  #
+  # Once documentation has been turned off (by +:enddoc:+),
+  # the object will refuse to turn #document_self or
+  # #document_children on, so +:doc:+ and +:start_doc:+ directives
+  # will have no effect in the current file.
+
+  def done_documenting=(value)
+    return unless @track_visibility
+    @done_documenting  = value
+    @document_self     = !value
+    @document_children = @document_self
+  end
+
+  ##
+  # Yields each parent of this CodeObject.  See also
+  # RDoc::ClassModule#each_ancestor
+
+  def each_parent
+    code_object = self
+
+    while code_object = code_object.parent do
+      yield code_object
+    end
+
+    self
+  end
+
+  ##
+  # File name where this CodeObject was found.
+  #
+  # See also RDoc::Context#in_files
+
+  def file_name
+    return unless @file
+
+    @file.absolute_name
+  end
+
+  ##
+  # Force the documentation of this object unless documentation
+  # has been turned off by :enddoc:
+  #--
+  # HACK untested, was assigning to an ivar
+
+  def force_documentation=(value)
+    @force_documentation = value unless @done_documenting
+  end
+
+  ##
+  # Sets the full_name overriding any computed full name.
+  #
+  # Set to +nil+ to clear RDoc's cached value
+
+  def full_name= full_name
+    @full_name = full_name
+  end
+
+  ##
+  # Use this to ignore a CodeObject and all its children until found again
+  # (#record_location is called).  An ignored item will not be displayed in
+  # documentation.
+  #
+  # See github issue #55
+  #
+  # The ignored status is temporary in order to allow implementation details
+  # to be hidden.  At the end of processing a file RDoc allows all classes
+  # and modules to add new documentation to previously created classes.
+  #
+  # If a class was ignored (via stopdoc) then reopened later with additional
+  # documentation it should be displayed.  If a class was ignored and never
+  # reopened it should not be displayed.  The ignore flag allows this to
+  # occur.
+
+  def ignore
+    return unless @track_visibility
+
+    @ignored = true
+
+    stop_doc
+  end
+
+  ##
+  # Has this class been ignored?
+  #
+  # See also #ignore
+
+  def ignored?
+    @ignored
+  end
+
+  ##
+  # The options instance from the store this CodeObject is attached to, or a
+  # default options instance if the CodeObject is not attached.
+  #
+  # This is used by Text#snippet
+
+  def options
+    if @store and @store.rdoc then
+      @store.rdoc.options
+    else
+      RDoc::Options.new
+    end
+  end
+
+  ##
+  # Our parent CodeObject.  The parent may be missing for classes loaded from
+  # legacy RI data stores.
+
+  def parent
+    return @parent if @parent
+    return nil unless @parent_name
+
+    if @parent_class == RDoc::TopLevel then
+      @parent = @store.add_file @parent_name
+    else
+      @parent = @store.find_class_or_module @parent_name
+
+      return @parent if @parent
+
+      begin
+        @parent = @store.load_class @parent_name
+      rescue RDoc::Store::MissingFileError
+        nil
+      end
+    end
+  end
+
+  ##
+  # File name of our parent
+
+  def parent_file_name
+    @parent ? @parent.base_name : '(unknown)'
+  end
+
+  ##
+  # Name of our parent
+
+  def parent_name
+    @parent ? @parent.full_name : '(unknown)'
+  end
+
+  ##
+  # Records the RDoc::TopLevel (file) where this code object was defined
+
+  def record_location top_level
+    @ignored    = false
+    @suppressed = false
+    @file       = top_level
+  end
+
+  ##
+  # The section this CodeObject is in.  Sections allow grouping of constants,
+  # attributes and methods inside a class or module.
+
+  def section
+    return @section if @section
+
+    @section = parent.add_section @section_title if parent
+  end
+
+  ##
+  # Enable capture of documentation unless documentation has been
+  # turned off by :enddoc:
+
+  def start_doc
+    return if @done_documenting
+
+    @document_self = true
+    @document_children = true
+    @ignored    = false
+    @suppressed = false
+  end
+
+  ##
+  # Disable capture of documentation
+
+  def stop_doc
+    return unless @track_visibility
+
+    @document_self = false
+    @document_children = false
+  end
+
+  ##
+  # Sets the +store+ that contains this CodeObject
+
+  def store= store
+    @store = store
+
+    return unless @track_visibility
+
+    if :nodoc == options.visibility then
+      initialize_visibility
+      @track_visibility = false
+    end
+  end
+
+  ##
+  # Use this to suppress a CodeObject and all its children until the next file
+  # it is seen in or documentation is discovered.  A suppressed item with
+  # documentation will be displayed while an ignored item with documentation
+  # may not be displayed.
+
+  def suppress
+    return unless @track_visibility
+
+    @suppressed = true
+
+    stop_doc
+  end
+
+  ##
+  # Has this class been suppressed?
+  #
+  # See also #suppress
+
+  def suppressed?
+    @suppressed
+  end
+
+end
+