Class: Amun::MajorModes::IRB

Inherits:

Object

• Object
• Object
• Amun::MajorModes::IRB

Includes:

Behaviours::Emacs

Defined in:

lib/amun/major_modes/irb.rb

Overview

mode that executes the last line in the current environment and print the output

Instance Attribute Summary

Attributes inherited from Object

#events

Instance Method Summary

• #execute_last_line ⇒ Object
• #initialize(buffer) ⇒ IRB constructor

  A new instance of IRB.

Methods included from Behaviours::Emacs

#emacs_behaviour_initialize

Methods included from Behaviours::Insertion

#insert_char, #insertion_keymap_initialize

Methods included from Behaviours::Erasing

#backward_delete_char, #backward_kill_word, #delete_char, #erasing_keymap_initialize, #forward_delete_char, #kill_line, #kill_word

Methods included from Behaviours::Movement

#backward_char, #beginning_of_line, #end_of_line, #forward_char, #movement_keymap_initialize, #next_line, #previous_line

Constructor Details

#initialize(buffer) ⇒ IRB

Returns a new instance of IRB.

# File 'lib/amun/major_modes/irb.rb', line 12

def initialize(buffer)
  super()
  self.buffer = buffer

  emacs_behaviour_initialize
  bind "\n", self, :execute_last_line
  read_io if buffer.empty?
end

Instance Method Details

#execute_last_line ⇒ Object

# File 'lib/amun/major_modes/irb.rb', line 21

def execute_last_line(*)
  last_line = buffer.lines.last
  result = eval(last_line)
  buffer << "\n#{result}"
rescue StandardError, SyntaxError => error
  buffer << "\n#{error.inspect}\n#{error.backtrace}"
ensure
  buffer.point = buffer.length
end