C0 code coverage information

Generated on Tue Oct 16 11:40:53 -0400 2007 with rcov 0.8.0

Code reported as executed by Ruby looks like this...
and this: this line is also marked as covered.
Lines considered as run by rcov, but not reported by Ruby, look like this,
and this: these lines were inferred by rcov (using simple heuristics).
Finally, here's a line marked as not executed.

 1 # Copyright (C) 2004-2006 Laurent Sansonetti
 2 #
 3 # Alexandria is free software; you can redistribute it and/or
 4 # modify it under the terms of the GNU General Public License as
 5 # published by the Free Software Foundation; either version 2 of the
 6 # License, or (at your option) any later version.
 7 #
 8 # Alexandria is distributed in the hope that it will be useful,
 9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
11 # General Public License for more details.
12 #
13 # You should have received a copy of the GNU General Public
14 # License along with Alexandria; see the file COPYING.  If not,
15 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 # Boston, MA 02111-1307, USA.
17 
18 module Alexandria
19     class UndoManager
20         include Singleton
21         include Observable
22 
23         attr_reader :actions
24 
25         def initialize
26             @undo_actions = []
27             @redo_actions = []
28             @within_undo = @withing_redo = false
29         end
30 
31         def push(&block)
32             (@within_undo ? @redo_actions : @undo_actions) << block
33             notify
34         end
35 
36         def can_undo?
37             @undo_actions.length > 0
38         end
39 
40         def can_redo?
41             @redo_actions.length > 0
42         end
43         
44         def undo!
45             @within_undo = true
46             begin
47                 action(@undo_actions)
48             ensure
49                 @within_undo = false
50             end
51         end
52 
53         def redo!
54             @within_redo = true
55             begin
56                 action(@redo_actions)
57             ensure
58                 @within_redo = false
59             end
60         end
61 
62         #######
63         private
64         #######
65 
66         def action(array)
67             action = array.pop
68             raise if action.nil?
69             action.call
70             notify
71         end
72 
73         def notify
74             changed
75             notify_observers(self)
76         end
77     end
78 end

Generated using the rcov code coverage analysis tool for Ruby version 0.8.0.