class InvocationContextIterator
  include Enumerable

  attr_accessor :_array_as_invocation_context
  private :_array_as_invocation_context

  def initialize(array_as_invocation_context)
    @_array_as_invocation_context = array_as_invocation_context
    @position = -1
    @array_size = @_array_as_invocation_context.get_size.execute.get_value
    @array_as_list = Array.new(@array_size)
    @array_as_list.each_index do |i|
      @array_as_list[i] = _array_as_invocation_context.get_index(i)
    end
  end

  def each(&block)
    @array_as_list.each(&block)
  end

  def [](i)
    @_array_as_invocation_context.get_index(i)
  end

  def []=(i, value)
    @_array_as_invocation_context.set_index(i, value).execute
  end
end