class NullClass

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 should be called NackClass?

Public Instance Methods

[](key) click to toggle source
# File lib/supplemental/facets/nullclass.rb, line 19
def [](key); nil; end
inspect() click to toggle source
# File lib/supplemental/facets/nullclass.rb, line 16
def inspect ; 'null' ; end
method_missing(sym, *args) click to toggle source
# File lib/supplemental/facets/nullclass.rb, line 20
def method_missing(sym, *args)
  return nil if sym.to_s[-1,1] == '?'
  self
end
nil?() click to toggle source
# File lib/supplemental/facets/nullclass.rb, line 17
def nil?  ; true ; end
null?() click to toggle source
# File lib/supplemental/facets/nullclass.rb, line 18
def null? ; true ; end

Public Class Methods

new() click to toggle source
# File lib/supplemental/facets/nullclass.rb, line 12
def new
  @null ||= NullClass.allocate
end