From: Roger Pack <rogerpack2005@...>
Date: 2008-06-28T04:52:36+09:00
Subject: Re: ruby wish-list

I wish that backtraces had more information, and could also display 
variables and bindings, etc.

ex:
Thread.current.backtrace_bindings or $!.bindings

and outputs like

NameError: undefined local variable or method `abc' for main:Object
  from 
/Users/rogerpack/dev/ruby-roger-useful-functions/irb_lookup.rb:40:in 
`method_missing('abc', 34)'
  from (irb):12


Also displaying the line of code that crashed you would be sweet, a la
NameError: undefined local variable or method `abc' for main:Object
        print abc # the line in question
  from 
/Users/rogerpack/dev/ruby-roger-useful-functions/irb_lookup.rb:40:in 
`method_missing('abc', 34)'
  from (irb):12

Though I suppose this is indeed possible in Ruby as it currently is ex: 
[1]'s source_extract function

Take care.
-R
[1] 
http://github.com/rails/rails/tree/ad772402c46a79c2d38979cef754b26dbd868196/actionpack/lib/action_controller/templates/rescues/template_error.erb
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