Class: Byebug::IRBCommand

Inherits:
Command
  • Object
show all
Defined in:
lib/byebug/commands/repl.rb

Overview

Implements byebug’s “irb” command.

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Command

command_exists?, commands, find, format_subcmd, format_subcmds, help, inherited, #initialize, load_commands, #match, register_setting_get, register_setting_set, register_setting_var, settings, settings_map, terminal_width

Constructor Details

This class inherits a constructor from Byebug::Command

Class Method Details

.description ⇒ Object 



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# File 'lib/byebug/commands/repl.rb', line 95

def description
  %{irb\tstarts an Interactive Ruby (IRB) session.

    IRB is extended with methods "cont", "n" and "step" which run the
    corresponding byebug commands. In contrast to the real byebug commands
    these commands don't allow arguments.}
end

.names ⇒ Object 



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# File 'lib/byebug/commands/repl.rb', line 91

def names
  %w(irb)
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/byebug/commands/repl.rb', line 65

def execute
  unless @state.interface.kind_of?(LocalInterface)
    print "Command is available only in local mode.\n"
    throw :debug_error
  end

  cont = IRB.start_session(get_binding)
  case cont
  when :cont
    @state.proceed
  when :step
    force = Command.settings[:forcestep]
    @state.context.step_into 1, force
    @state.proceed
  when :next
    force = Command.settings[:forcestep]
    @state.context.step_over 1, @state.frame_pos, force
    @state.proceed
  else
    print @state.location
    @state.previous_line = nil
  end
end

#regexp ⇒ Object 



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# File 'lib/byebug/commands/repl.rb', line 61

def regexp
  /^\s* irb \s*$/x
end