Roundtrip fails when max_nesting or max_bytesize is exceeded.

[bradland]

When limits defined by max_nesting or max_bytesize options are encountered, roundtrip operations fail. The problem is illustrated in the following script:

require 'lines'
require 'json'
require 'yaml'

class LinesRoundtrip
  ::DATA = {
    large: { "foo" => "b#{'a'*2048}r" },
    small: { "foo" => "bar" }
  }

  def run!
    roundtrip DATA[:small], Lines
    roundtrip DATA[:small], JSON
    roundtrip DATA[:small], YAML
    roundtrip DATA[:large], Lines
    roundtrip DATA[:large], JSON
    roundtrip DATA[:large], YAML
  end

  def roundtrip(data, serializer)
    puts "Attempting to roundtrip using #{serializer.name}:"
    puts "  #{data.inspect}"
    dump = serializer.dump(data)
    load = serializer.load(dump)

    puts "Ended up with:"
    puts "  #{load.inspect}"
    puts "---"
  end
end

begin
  if $0 == __FILE__
    LinesRoundtrip.new().run!
  end
rescue Interrupt
  # Ctrl^C
  exit 130
rescue Errno::EPIPE
  # STDOUT was closed
  exit 74 # EX_IOERR
end

When that script is run, Lines fails to roundtrip the large value.