def decode(data, field_id):
if field_id is not None:
prefix = make_prefix(field_id, 2)
for i in range(len(prefix)):
if prefix[i] != data[i]:
return VarInt(0), data
data = data[len(prefix):]
pub_key, data = PubKeySecp256k1.decode(data, 1)
signature, data = Bytes.decode(data, 2)
account_number, data = VarInt.decode(data, 3)
sequence, data = VarInt.decode(data, 4)
return BnbSignature(pub_key, signature, account_number, sequence), data
def decode(data, field_id=None):
if field_id is not None:
prefix = make_prefix(field_id, 2)
for i in range(len(prefix)):
if prefix[i] != data[i]:
return None, data
data = data[len(field_id):]
assert data[0:4] == DexList.object_id()
data = data[4:]
from_address, data = Address.decode(data, 1)
proposal_id, data = VarInt.decode(data, 2)
base_asset_symbol, data = String.decode(data, 3)
quote_asset_symbol, data = String.decode(data, 4)
init_price, data = VarInt.decode(data, 5)
return DexList(from_address, proposal_id, base_asset_symbol,
quote_asset_symbol, init_price)
def decode(data, field_id=None):
if field_id is not None:
prefix = make_prefix(field_id, 2)
for i in range(len(prefix)):
if prefix[i] != data[i]:
return None, data
data = data[len(field_id):]
from_address, data = Address.decode(data, 1)
symbol, data = String.decode(data, 2)
amount, data = VarInt.decode(data, 3)
return Mint(from_address, symbol, amount)
def decode(klass, data, field_id=None):
if field_id is not None:
prefix = make_prefix(field_id, 2)
for i in range(len(prefix)):
if prefix[i] != data[i]:
return None, data
data = data[len(field_id):]
assert data[0:4] == klass.object_id()
data = data[4:]
from_address, data = Address.decode(data, 1)
symbol, data = String.decode(data, 2)
amount, data = VarInt.decode(data, 3)
return klass(from_address, symbol, amount), data
def decode(data, field_id=None, hrp='bnb'):
if field_id is not None:
prefix = make_prefix(field_id, 2)
for i in range(len(prefix)):
if prefix[i] != data[i]:
return None, data
data = data[len(field_id):]
assert data[0:4] == Issue.object_id()
data = data[4:]
address, data = Address.decode(data, 1, hrp)
name, data = String.decode(data, 2)
symbol, data = String.decode(data, 3)
total_supply, data = VarInt.decode(data, 4)
mintable, data = Bool.decode(data, 5)
mintable = True if mintable else 0
return Issue(address, name, symbol, total_supply, mintable), data
def decode(data, field_id=None):
if field_id is not None:
prefix = make_prefix(field_id, 2)
for i in range(len(prefix)):
if prefix[i] != data[i]:
return None, data
data = data[len(field_id):]
assert data[0:4] == Proposal.object_id()
data = data[4:]
title, data = String.decode(data, 1)
description, data = String.decode(data, 2)
proposal_type, data = VarInt.decode(data, 3)
proposer, data = Address.decode(data, 4)
initial_deposit, data = Repeated.decode(data, 5, Token)
voting_period, data = StringVarInt.decode(data, 6)
return Proposal(title, description, proposal_type, proposer, initial_deposit, voting_period)
def test_decode_varint():
for val in [5, 257, 1000000, 0]:
encoded = VarInt(val).encode()
decoded, remaining = VarInt.decode(encoded)
assert decoded == val
assert remaining == b''
