Class: Byebug::UndisplayCommand

Inherits:
Command
  • Object
show all
Includes:
Helpers::ParseHelper
Defined in:
lib/byebug/commands/undisplay.rb

Overview

Remove expressions from display list.

Instance Attribute Summary

Attributes inherited from Command

#processor

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Helpers::ParseHelper

#get_int, #parse_steps, #syntax_valid?

Methods inherited from Command

#arguments, columnize, #context, #frame, help, #initialize, match, to_s

Methods included from Helpers::StringHelper

#camelize, #deindent, #prettify

Constructor Details

This class inherits a constructor from Byebug::Command

Class Method Details

.description ⇒ Object 



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# File 'lib/byebug/commands/undisplay.rb', line 19

def self.description
  <<-DESCRIPTION
    undisp[lay][ nnn]

    #{short_description}

    Arguments are the code numbers of the expressions to stop displaying. No
    argument means cancel all automatic-display expressions. Type "info
    display" to see the current list of code numbers.
  DESCRIPTION
end

.regexp ⇒ Object 



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# File 'lib/byebug/commands/undisplay.rb', line 15

def self.regexp
  /^\s* undisp(?:lay)? (?:\s+(\S+))? \s*$/x
end

.short_description ⇒ Object 



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# File 'lib/byebug/commands/undisplay.rb', line 31

def self.short_description
  "Stops displaying all or some expressions when program stops"
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/byebug/commands/undisplay.rb', line 35

def execute
  if @match[1]
    pos, err = get_int(@match[1], "Undisplay", 1, Byebug.displays.size)
    return errmsg(err) unless err.nil?

    last_display = Byebug.displays[pos - 1]
    return errmsg(pr("display.errors.undefined", expr: pos)) unless last_display

    last_display[0] = nil
  else
    return unless confirm(pr("display.confirmations.clear_all"))

    Byebug.displays.each { |d| d[0] = false }
  end
end