Class: Rlp::Decoder

Inherits:

Object

• Object
• Rlp::Decoder

Defined in:

lib/rlp-lite/decoder.rb

Overview

Provides an RLP-decoder.

Instance Method Summary

• #perform(rlp) ⇒ Object

  Decodes an RLP-encoded object.

Instance Method Details

#perform(rlp) ⇒ Object

Decodes an RLP-encoded object.

Parameters:

• rlp (String) —

  an RLP-encoded object.

Returns:

• (Object) —

  the decoded and maybe deserialized object.

Raises:

• (Rlp::DecodingError) —

  if the input string does not end after the root item.

# File 'lib/rlp-lite/decoder.rb', line 13

def perform( rlp )
  rlp = Util.hex_to_bin( rlp )    if Util.is_hex?( rlp )
  rlp = Util.str_to_bytes( rlp )
  begin
    item, next_start = consume_item( rlp, 0 )
  rescue Exception => e
    raise DecodingError, "Cannot decode rlp string: #{e}"
  end
  raise DecodingError, "RLP string ends with #{rlp.size - next_start} superfluous bytes" if next_start != rlp.size
  return item
end