From: Gavin Sinclair <gsinclair@...>
Date: 2004-06-12T15:16:34+09:00
Subject: Any way to get the calling method's binding?

Something I've wanted to do on a few occasions recently is to evaluate
an expression in the context of the calling method.  A simple example
is this:

  def trace(expr, _binding)
    LOG.debug "#{expr} = #{eval expr, _binding)}"
  end

  def something
    x = 5
    y = 7
    trace "x + y", binding
  end

The effect of calling something() now is that the message "x + y = 12"
gets logged.

It Would Be Nice if I could do this instead:

  def trace(expr)
    _binding = somehow_get_calling_methods_binding()
    LOG.debug "#{expr} = #{eval expr, _binding)}"
  end

  def something
    x = 5
    y = 7
    trace "x + y"
  end

Is there a substitute for "somehow_get_calling_methods_binding()" in
the code above?

Thanks,
Gavin