def read_bytes(reader: BinaryReader):
code = reader.read_byte()
if code == int.from_bytes(PUSHDATA4, 'little'):
temp = reader.read_uint32()
key_len = temp
elif code == int.from_bytes(PUSHDATA2, 'little'):
temp = reader.read_uint16()
key_len = int(temp)
elif code == int.from_bytes(PUSHDATA1, 'little'):
temp = reader.read_uint8()
key_len = int(temp)
elif int.from_bytes(PUSHBYTES75, 'little') >= code >= int.from_bytes(PUSHBYTES1, 'little'):
key_len = code - int.from_bytes(PUSHBYTES1, 'little') + 1
else:
key_len = 0
res = reader.read_bytes(key_len)
return res
def deserialize_from(txbytes: bytes):
ms = StreamManager.GetStream(txbytes)
reader = BinaryReader(ms)
tx = Transaction()
tx.version = reader.read_uint8()
tx.tx_type = reader.read_uint8()
tx.nonce = reader.read_uint32()
tx.gas_price = reader.read_uint64()
tx.gas_limit = reader.read_uint64()
tx.payer = reader.read_bytes(20)
tx.payload = reader.read_var_bytes()
attri_len = reader.read_var_int()
if attri_len is 0:
tx.attributes = bytearray()
sigs_len = reader.read_var_int()
tx.sigs = []
for i in range(sigs_len):
tx.sigs.append(Sig.deserialize(reader))
return tx
def deserialize_from(bytes_tx: bytes):
ms = StreamManager.get_stream(bytes_tx)
reader = BinaryReader(ms)
tx = Transaction()
tx.version = reader.read_uint8()
tx.tx_type = reader.read_uint8()
tx.nonce = reader.read_uint32()
tx.gas_price = reader.read_uint64()
tx.gas_limit = reader.read_uint64()
tx.payer = reader.read_bytes(20)
tx.payload = reader.read_var_bytes()
attribute_len = reader.read_var_int()
if attribute_len is 0:
tx.attributes = bytearray()
sig_len = reader.read_var_int()
tx.sig_list = list()
for _ in range(0, sig_len):
tx.sig_list.append(Sig.deserialize(reader))
return tx
