Class: Byebug::IRBCommand

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

Overview

Implements byebug’s “irb” command.

Constant Summary

Constants inherited from Command

Command::DEF_OPTIONS

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, method_missing, options, 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 



98
99
100
101
102
103
104
 
# File 'lib/byebug/commands/repl.rb', line 98

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 



94
95
96
 
# File 'lib/byebug/commands/repl.rb', line 94

def names
  %w(irb)
end

Instance Method Details

#execute ⇒ Object 



66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
 
# File 'lib/byebug/commands/repl.rb', line 66

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[:force_stepping]
    @state.context.step_into 1, force
    @state.proceed
  when :next
    force = Command.settings[:force_stepping]
    @state.context.step_over 1, @state.frame_pos, force
    @state.proceed
  else
    file = @state.context.frame_file(0)
    line = @state.context.frame_line(0)
    CommandProcessor.print_location_and_text(file, line)
    @state.previous_line = nil
  end
end

#regexp ⇒ Object 



62
63
64
 
# File 'lib/byebug/commands/repl.rb', line 62

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