Class: Byebug::ListCommand

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

Overview

Implements byebug “list” command.

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Command

commands, find, format_subcmd, format_subcmds, help, inherited, #initialize, load_commands, #match

Constructor Details

This class inherits a constructor from Byebug::Command

Class Method Details

.description ⇒ Object 



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# File 'lib/byebug/commands/list.rb', line 29

def description
  %{l[ist]\t\tlist forward
    l[ist] -\tlist backward
    l[ist] =\tlist current line
    l[ist] nn-mm\tlist given lines
    * NOTE - to turn on autolist, use 'set autolist'}
end

.names ⇒ Object 



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# File 'lib/byebug/commands/list.rb', line 25

def names
  %w(list)
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/byebug/commands/list.rb', line 9

def execute
  Byebug.source_reload if Setting[:autoreload]
  lines = getlines(@state.file, @state.line)
  if !lines
    errmsg "No sourcefile available for #{@state.file}\n"
    return @state.previous_line
  end

  b, e = set_line_range(Setting[:listsize], lines.size)
  return @state.previous_line if b < 0

  print "\n[#{b}, #{e}] in #{@state.file}\n"
  @state.previous_line = display_list(b, e, lines, @state.line)
end

#regexp ⇒ Object 



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# File 'lib/byebug/commands/list.rb', line 5

def regexp
  /^\s* l(?:ist)? (?:\s*([-=])|\s+(\S+))? \s*$/x
end