Class: Integer

Inherits:
Object
  • Object
show all
Defined in:
lib/rbor/integer.rb

Instance Method Summary collapse

Instance Method Details

#cbor_serialize ⇒ String

Serialize an Integer into a CBOR string.

Returns:

  • (String) —

    the object serialized to CBOR.

Author:

  • David P. Sugar (r4gus)



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# File 'lib/rbor/integer.rb', line 7

def cbor_serialize
  v = self
  mt = 0

  if v < 0 and v >= -2**64
    v = -1 - v
    mt = 1
  end

  case v
  when 0x00..0x17
    return [mt << 5 | v].pack('C')
  when 0x18..0xff
    return [mt << 5 | 24, v].pack('C*')
  when 0x0100..0xffff
    return [mt << 5 | 0x19].pack('C') + [v].pack("S>")
  when 0x00010000..0xffffffff
    return [mt << 5 | 0x1a].pack('C') + [v].pack("L>")
  when 0x0000000100000000..0xffffffffffffffff
    return [mt << 5 | 0x1b].pack('C') + [v].pack("Q>")
  end
end