class Thor::Task

def run(obj, *params)
  raise NoMethodError, "the `#{meth}' task of #{obj.class} is private" if
    (obj.private_methods + obj.protected_methods).include?(meth)
  
  obj.send(meth, *params)
rescue ArgumentError => e
  # backtrace sans anything in this file
  backtrace = e.backtrace.reject {|frame| frame =~ /^#{Regexp.escape(__FILE__)}/}
  # and sans anything that got us here
  backtrace -= caller
  raise e unless backtrace.empty?

  # okay, they really did call it wrong
  raise Error, "`#{meth}' was called incorrectly. Call as `#{formatted_usage}'"
rescue NoMethodError => e
  begin
    raise e unless e.message =~ /^undefined method `#{meth}' for #{Regexp.escape(obj.inspect)}$/
  rescue
    raise e
  end
  raise Error, "The #{namespace false} namespace doesn't have a `#{meth}' task"
end