lib/rumonade/either.rb in rumonade-0.3.0 vs lib/rumonade/either.rb in rumonade-0.4.0

@@ -3,9 +3,13 @@
 module Rumonade
   # Represents a value of one of two possible types (a disjoint union).
   # The data constructors {Rumonade::Left} and {Rumonade::Right} represent the two possible values.
   # The +Either+ type is often used as an alternative to {Rumonade::Option} where {Rumonade::Left} represents
   # failure (by convention) and {Rumonade::Right} is akin to {Rumonade::Some}.
+  #
+  # This implementation of +Either+ also contains ideas from the +Validation+ class in the
+  # +scalaz+ library.
+  #
   # @abstract
   class Either
     def initialize
       raise(TypeError, "class Either is abstract; cannot be instantiated") if self.class == Either
     end
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