def add_tx(self, tx: BaseTransaction) -> None:
""" Checks if this tx has mint or melt inputs/outputs and adds to tokens index
"""
for tx_input in tx.inputs:
spent_tx = tx.get_spent_tx(tx_input)
self._remove_from_index(spent_tx, tx_input.index)
for index in range(len(tx.outputs)):
self._add_to_index(tx, index)
# if it's a TokenCreationTransaction, update name and symbol
if tx.version == TxVersion.TOKEN_CREATION_TRANSACTION:
from hathor.transaction.token_creation_tx import TokenCreationTransaction
tx = cast(TokenCreationTransaction, tx)
assert tx.hash is not None
status = self.tokens[tx.hash]
status.name = tx.token_name
status.symbol = tx.token_symbol
if tx.is_transaction:
# Adding this tx to the transactions key list
assert isinstance(tx, Transaction)
for token_uid in tx.tokens:
transactions = self.tokens[token_uid].transactions
# It is safe to use the in operator because it is O(log(n)).
# http://www.grantjenks.com/docs/sortedcontainers/sortedlist.html#sortedcontainers.SortedList.__contains__
assert tx.hash is not None
element = TransactionIndexElement(tx.timestamp, tx.hash)
if element in transactions:
return
transactions.add(element)
def add_tx(self, tx: BaseTransaction) -> None:
# if it's a TokenCreationTransaction, update name and symbol
self.log.debug('add_tx', tx=tx.hash_hex, ver=tx.version)
if tx.version == TxVersion.TOKEN_CREATION_TRANSACTION:
from hathor.transaction.token_creation_tx import TokenCreationTransaction
tx = cast(TokenCreationTransaction, tx)
assert tx.hash is not None
self.log.debug('create_token_info',
tx=tx.hash_hex,
name=tx.token_name,
symb=tx.token_symbol)
self._create_token_info(tx.hash, tx.token_name, tx.token_symbol)
if tx.is_transaction:
# Adding this tx to the transactions key list
assert isinstance(tx, Transaction)
for token_uid in tx.tokens:
assert tx.hash is not None
self._add_transaction(token_uid, tx.timestamp, tx.hash)
for tx_input in tx.inputs:
spent_tx = tx.get_spent_tx(tx_input)
self._remove_utxo(spent_tx, tx_input.index)
for index in range(len(tx.outputs)):
self.log.debug('add utxo', tx=tx.hash_hex, index=index)
self._add_utxo(tx, index)
def del_tx(self, tx: BaseTransaction) -> None:
for tx_input in tx.inputs:
spent_tx = tx.get_spent_tx(tx_input)
self._add_utxo(spent_tx, tx_input.index)
for index in range(len(tx.outputs)):
self._remove_utxo(tx, index)
if tx.is_transaction:
# Removing this tx from the transactions key list
assert isinstance(tx, Transaction)
for token_uid in tx.tokens:
assert tx.hash is not None
self._remove_transaction(token_uid, tx.timestamp, tx.hash)
# if it's a TokenCreationTransaction, remove it from index
if tx.version == TxVersion.TOKEN_CREATION_TRANSACTION:
assert tx.hash is not None
self._destroy_token(tx.hash)
def del_tx(self, tx: BaseTransaction) -> None:
for tx_input in tx.inputs:
spent_tx = tx.get_spent_tx(tx_input)
self._add_to_index(spent_tx, tx_input.index)
for index in range(len(tx.outputs)):
self._remove_from_index(tx, index)
if tx.is_transaction:
# Removing this tx from the transactions key list
assert isinstance(tx, Transaction)
for token_uid in tx.tokens:
transactions = self._tokens[token_uid]._transactions
idx = transactions.bisect_key_left((tx.timestamp, tx.hash))
if idx < len(transactions) and transactions[idx].hash == tx.hash:
transactions.pop(idx)
# if it's a TokenCreationTransaction, remove it from index
if tx.version == TxVersion.TOKEN_CREATION_TRANSACTION:
assert tx.hash is not None
del self._tokens[tx.hash]
