1 files changed, 23 insertions, 0 deletions
diff --git a/lib/irb/command.rb b/lib/irb/command.rb
new file mode 100644
index 0000000000..68a4b52727
--- /dev/null
+++ b/lib/irb/command.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+#
+#   irb/command.rb - irb command
+#   	by Keiju ISHITSUKA(keiju@ruby-lang.org)
+#
+
+require_relative "command/base"
+
+module IRB # :nodoc:
+  module Command
+    @commands = {}
+
+    class << self
+      attr_reader :commands
+
+      # Registers a command with the given name.
+      # Aliasing is intentionally not supported at the moment.
+      def register(name, command_class)
+        @commands[name.to_sym] = [command_class, []]
+      end
+    end
+  end
+end