na.rb

Path: lib/core/facets/na.rb
Last Update: Wed Jan 05 06:24:23 +0000 2011

N/A exception is useful for specifying non-argument defaults when nil is a valid value.

  def f(x=NA)
  end

NA is also used to represent an argument "slot" for Proc#partial.

NA is an instance of ArgumentError.

[Validate]