lib/irb/command/base.rb


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62

# frozen_string_literal: true
#
#   nop.rb -
#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
#

module IRB
  # :stopdoc:

  module Command
    class CommandArgumentError < StandardError; end

    def self.extract_ruby_args(*args, **kwargs)
      throw :EXTRACT_RUBY_ARGS, [args, kwargs]
    end

    class Base
      class << self
        def category(category = nil)
          @category = category if category
          @category
        end

        def description(description = nil)
          @description = description if description
          @description
        end

        def help_message(help_message = nil)
          @help_message = help_message if help_message
          @help_message
        end

        private

        def highlight(text)
          Color.colorize(text, [:BOLD, :BLUE])
        end
      end

      def self.execute(irb_context, arg)
        new(irb_context).execute(arg)
      rescue CommandArgumentError => e
        puts e.message
      end

      def initialize(irb_context)
        @irb_context = irb_context
      end

      attr_reader :irb_context

      def execute(arg)
        #nop
      end
    end

    Nop = Base
  end

  # :startdoc:
end