CSV#inspect

# File tmp/rubies/ruby-3.0.5/lib/csv.rb, line 2474
def inspect
  str = ["#<", self.class.to_s, " io_type:"]
  # show type of wrapped IO
  if    @io == $stdout then str << "$stdout"
  elsif @io == $stdin  then str << "$stdin"
  elsif @io == $stderr then str << "$stderr"
  else                      str << @io.class.to_s
  end
  # show IO.path(), if available
  if @io.respond_to?(:path) and (p = @io.path)
    str << " io_path:" << p.inspect
  end
  # show encoding
  str << " encoding:" << @encoding.name
  # show other attributes
  ["lineno", "col_sep", "row_sep", "quote_char"].each do |attr_name|
    if a = __send__(attr_name)
      str << " " << attr_name << ":" << a.inspect
    end
  end
  ["skip_blanks", "liberal_parsing"].each do |attr_name|
    if a = __send__("#{attr_name}?")
      str << " " << attr_name << ":" << a.inspect
    end
  end
  _headers = headers
  str << " headers:" << _headers.inspect if _headers
  str << ">"
  begin
    str.join('')
  rescue  # any encoding error
    str.map do |s|
      e = Encoding::Converter.asciicompat_encoding(s.encoding)
      e ? s.encode(e) : s.force_encoding("ASCII-8BIT")
    end.join('')
  end
end