module Mutant
  class Mutator
    class Node
      # Mutator on AST blocks
      class Block < self

        handle(:block)

      private

        # Emit mutants
        #
        # @return [undefined]
        #
        # @api private
        #
        def dispatch
          array = input.array
          emit_attribute_mutations(:array) do |mutation|
            array = mutation.array
            # Do not generate empty bodies
            if array.empty?
              array << new_nil
            end
            mutation
          end
        end

      end # Block
    end # Node
  end # Mutator
end # Mutant