Nullclass

NullClass is essentially NilClass but it differs in one important way. When a method is called against it that it deoesn‘t have, it will simply return null value rather then raise an error.

TODO: Perhaps NullClass and NackClass should be one and the same?

Methods
Public Class methods
new()
# File lib/more/facets/nullclass.rb, line 36
    def new
      @null ||= NullClass.allocate
    end
Public Instance methods
[](key)
# File lib/more/facets/nullclass.rb, line 43
  def [](key); nil; end
inspect()
# File lib/more/facets/nullclass.rb, line 40
  def inspect ; 'null' ; end
method_missing(sym, *args)
# File lib/more/facets/nullclass.rb, line 44
  def method_missing(sym, *args)
    return nil if sym.to_s[-1,1] == '?'
    self
  end
nil?()
# File lib/more/facets/nullclass.rb, line 41
  def nil?  ; true ; end
null?()
# File lib/more/facets/nullclass.rb, line 42
  def null? ; true ; end