Module: RLP::Decode

Includes:
Constant, Error, Utils
Included in:
RLP
Defined in:
lib/rlp/decode.rb

Constant Summary

Constants included from Constant

Constant::BYTE_EMPTY, Constant::BYTE_ZERO, Constant::LIST_PREFIX_OFFSET, Constant::LONG_LENGTH_LIMIT, Constant::PRIMITIVE_PREFIX_OFFSET, Constant::SHORT_LENGTH_LIMIT

Instance Method Summary collapse

Methods included from Utils

#big_endian_to_int, #bytes_to_str, #encode_hex, #int_to_big_endian, #list?, #primitive?, #str_to_bytes

Instance Method Details

#decode(rlp, options = {}) ⇒ Object

Raises:



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# File 'lib/rlp/decode.rb', line 7

def decode(rlp, options={})
  sedes = options.delete(:sedes)
  strict = options.delete(:strict) {|k| true }

  rlp = str_to_bytes(rlp)

  begin
    item, next_start = consume_item(rlp, 0)
  rescue Exception => e
    raise DecodingError.new("Cannot decode rlp string: #{e}", rlp)
  end

  raise DecodingError.new("RLP string ends with #{rlp.size - next_start} superfluous bytes", rlp) if next_start != rlp.size && strict

  if sedes
    obj = sedes.deserialize(item) # TODO: (options)
    #TODO: cache flow
    obj
  else
    item
  end
end