module Mutant class Mutator class Util # Mutators that mutates an array of inputs class Array < self handle(::Array) class Presence < Util private # Emit element presence mutations # # @return [undefined] # # @api private # def dispatch input.each_index do |index| dup = dup_input dup.delete_at(index) emit(dup) end end end class Element < Util private # Emit mutations # # @return [undefined] # # @api private # def dispatch input.each_with_index do |element, index| dup = dup_input Mutator.each(element).each do |mutation| dup[index]=mutation emit(dup) end end end end private # Emit mutations # # @return [undefined] # # @api private # def dispatch run(Element) run(Presence) emit([]) end end end end end