#--
# Credit goes to Florian Gross (flgr).
#++
class Symbol
  # Turn a symbol into a proc calling the method to
  # which it refers.
  #
  #   require 'facet/symbol/to_proc'
  #
  #   up = :upcase.to_proc
  #   up.call("hello")  #=> HELLO
  #
  # More useful is the fact that this allows <tt>&</tt>
  # to be used to coerce Symbol into Proc. 
  #
  #   %w{foo bar qux}.map(&:upcase)   #=> ["FOO","BAR","QUX"]
  #   [1, 2, 3].inject(&:+)           #=> 6
  #
  def to_proc
    proc { |obj, *args| obj.send(self, *args) }
  end
end