class Reader

# Reader provides the io/Reader standard library API.
class Reader implements Readable, Closable
  # Reader.binary stores instance state.
  # @type Nil
  binary: nil

  # Reader.handle stores instance state.
  # @type Nil
  handle: nil

  # Reader.initialize provides the io/Reader standard library operation.
  # @param handle Any handle value.
  # @param binary Boolean binary value.
  # @return Self the initialized object.
  initialize: handle, binary ->
    self.handle = handle
    self.binary = binary

  # Reader.close provides the io/Reader standard library operation.
  # @return Nil the resulting value.
  close: ->
    io_stream_close(self.handle)

  # Reader.each_line provides the io/Reader standard library operation.
  # @param fn Function fn value.
  # @return Any the resulting value.
  each_line: fn ->
    line = self.read_line()
    while line != nil
      fn(line)
      line = self.read_line()
    nil

  # Reader.eof? provides the io/Reader standard library operation.
  # @return Boolean whether the condition is true.
  eof?: ->
    io_stream_eof(self.handle)

  # Reader.read provides the io/Reader standard library operation.
  # @param size Int size value.
  # @return Any the resulting value.
  read: size ->
    io_stream_read(self.handle, size)

  # Reader.read_line provides the io/Reader standard library operation.
  # @return String the resulting value.
  read_line: ->
    io_stream_read_line(self.handle)