# File lib/archive/support/zlib.rb, line 348
    def initialize(delegate, window_bits = nil)
      @delegate = delegate
      @delegate_read_size = DEFAULT_DELEGATE_READ_SIZE
      @window_bits = window_bits
      @inflater = Zlib::Inflate.new(@window_bits)
      @inflate_buffer = ''
      @checksum = nil
      @compressed_size = nil
      @uncompressed_size = nil
    end