Module: Rib::Debugger

Extended by:
Plugin
Defined in:
lib/rib/extra/debugger.rb

Defined Under Namespace

Modules: Imp

Constant Summary collapse

ExcludedCommands = 
%w[irb quit exit backtrace eval p pp ps]
WrappedCommands = 
%w[help where edit reload]

Instance Attribute Summary

Attributes included from Plugin

#disabled

Instance Method Summary collapse

Methods included from Plugin

disable, disabled?, enable, enabled?, extended

Instance Method Details

#at_line(context, file, line) ⇒ Object

Callback for the debugger



49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'lib/rib/extra/debugger.rb', line 49

def at_line context, file, line
  return if Debugger.disabled?
  path = "#{file}:#{line}:in #{caller[1][/`.+?'/]}"
  msg0 = if Rib.const_defined?(:StripBacktrace) && StripBacktrace.enabled?
           StripBacktrace.strip_backtrace([path])
         else
           [path]
         end
  msg1 = if Rib.const_defined?(:Color) && Color.enabled?
           Color.colorize_backtrace(msg0)
         else
           [msg0].flatten
         end

  Rib.say(msg1.first)

  if @debugger_state
    @debugger_state.context = context
    @debugger_state.file    = file
    @debugger_state.line    = line
  end
  Rib::Anchor.enable
  Rib.anchor(context.frame_binding(0), :prompt_anchor => false,
    :debugger_context => context,
    :debugger_file    => file   ,
    :debugger_line    => line   ,
    :debugger_state   => @debugger_state,
    :debugger_watch   => @debugger_watch)
  ::Debugger.stop
rescue Exception => e
  Rib.warn("Error while calling at_line:\n  #{format_error(e)}")
end

#before_loop ⇒ Object

————— Rib API —————



13
14
15
16
17
18
19
20
21
 
# File 'lib/rib/extra/debugger.rb', line 13

def before_loop
  return super if Debugger.disabled?
  ::Debugger.handler = self
  bound_object.extend(Imp)
  @debugger_state ||= config[:debugger_state]
  @debugger_watch ||= config[:debugger_watch]
  bound_object.display(debugger_watch.shift) until debugger_watch.empty?
  super
end

#debugger_state ⇒ Object 



29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
 
# File 'lib/rib/extra/debugger.rb', line 29

def debugger_state
  @debugger_state ||= config[:debugger_state] ||
    ::Debugger::CommandProcessor::State.new{ |s|
      commands = ::Debugger::Command.commands.select{ |cmd|
        cmd.event                                                      &&
        (!config[:debugger_context].dead? || cmd.allow_in_post_mortem) &&
        !ExcludedCommands.include?([cmd.help_command].flatten.first)
      }

      s.context = config[:debugger_context]
      s.file    = config[:debugger_file]
      s.line    = config[:debugger_line]
      s.binding = config[:debugger_context].frame_binding(0)
      s.display = []
      s.interface = ::Debugger::LocalInterface.new
      s.commands  = commands
    }
end

#debugger_watch ⇒ Object

————— Plugin API —————



25
26
27
 
# File 'lib/rib/extra/debugger.rb', line 25

def debugger_watch
  @debugger_watch ||= []
end