method

parse_meta_method

v1_9_3_125 - Show latest stable - 0 notes - Class: Ruby

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parse_meta_method(container, single, tk, comment) public

Parses a meta-programmed method

# File lib/rdoc/parser/ruby.rb, line 900
  def parse_meta_method(container, single, tk, comment)
    column  = tk.char_no
    offset  = tk.seek
    line_no = tk.line_no

    start_collecting_tokens
    add_token tk
    add_token_listener self

    skip_tkspace false

    singleton = !!comment.sub!(/(^# +:?)(singleton-)(method:)/, '\1\3')

    if comment.sub!(/^# +:?method: *(\S*).*?\n/, '') then
      name = $1 unless $1.empty?
    end

    if name.nil? then
      name_t = get_tk
      case name_t
      when TkSYMBOL then
        name = name_t.text[1..-1]
      when TkSTRING then
        name = name_t.value[1..-2]
      when TkASSIGN then # ignore
        remove_token_listener self
        return
      else
        warn "unknown name token #{name_t.inspect} for meta-method '#{tk.name}'"
        name = 'unknown'
      end
    end

    meth = RDoc::MetaMethod.new get_tkread, name
    meth.record_location @top_level
    meth.offset = offset
    meth.line   = line_no
    meth.singleton = singleton

    remove_token_listener self

    meth.start_collecting_tokens
    indent = TkSPACE.new nil, 1, 1
    indent.set_text " " * column

    position_comment = TkCOMMENT.new nil, line_no, 1
    position_comment.value = "# File #{@top_level.absolute_name}, line #{line_no}"
    meth.add_tokens [position_comment, NEWLINE_TOKEN, indent]
    meth.add_tokens @token_stream

    token_listener meth do
      meth.params = ''

      extract_call_seq comment, meth

      container.add_method meth

      last_tk = tk

      while tk = get_tk do
        case tk
        when TkSEMICOLON then
          break
        when TkNL then
          break unless last_tk and TkCOMMA === last_tk
        when TkSPACE then
          # expression continues
        when TkDO then
          unget_tk tk
          parse_statements container, single, meth
          break
        else
          last_tk = tk
        end
      end
    end

    meth.comment = comment

    @stats.add_method meth
  end

parse_meta_method

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