From: "NAKAMURA, Hiroshi" <nahi@...>
Date: 2002-03-15T10:50:27+09:00
Subject: Re: Debugger problem

Hi Nathaniel,

> From: Nathaniel Talbott [mailto:nathaniel@talbott.ws] 
> Sent: Friday, March 15, 2002 3:08 AM

> Perhaps this is a known issue, but given the following program:
> 
> 	def a
> 		puts "Hello"
> 	end
> 
> 	at_exit {
> 		a
> 	}
> 
> If I load it up in the debugger, set a breakpoint on the puts 
> line, and
> run it, the breakpoint is never reached (even though the program still
> does the right thing).

trace_func is removed at at_exit.  Workaround;

$ ruby -d -rdebug foo.rb
Debug.rb
Emacs support available.

foo.rb:1:def a
(rdb:1) list 0-999
[0, 999] in foo.rb
=> 1  def a
   2    puts "Hello"
   3  end
   4
   5  at_exit do
   6    set_trace_func proc { |event, file, line, id, binding, klass,
*rest|
   7      DEBUGGER__.context.trace_func event, file, line, id, binding,
klass
   8    } if $DEBUG
   9    a
   10  end
(rdb:1) break a
Set breakpoint 1 at foo.rb:a
(rdb:1) cont
Breakpoint 1, a at foo.rb:a
foo.rb:1:def a
(rdb:1) where
--> #1  foo.rb:1:in `a'
    #2  foo.rb:9
(rdb:1) finish
Hello

Regards,
// NaHi