def log_XX(computation: BaseComputation, topic_count: int) -> None:
if topic_count < 0 or topic_count > 4:
raise TypeError("Invalid log topic size. Must be 0, 1, 2, 3, or 4")
mem_start_position, size = computation.stack_pop(
num_items=2, type_hint=constants.UINT256)
if not topic_count:
topics = [] # type: List[int]
elif topic_count > 1:
topics = computation.stack_pop(num_items=topic_count,
type_hint=constants.UINT256)
else:
topics = [
computation.stack_pop(num_items=topic_count,
type_hint=constants.UINT256)
]
data_gas_cost = constants.GAS_LOGDATA * size
topic_gas_cost = constants.GAS_LOGTOPIC * topic_count
total_gas_cost = data_gas_cost + topic_gas_cost
computation.consume_gas(
total_gas_cost,
reason="Log topic and data gas cost",
)
computation.extend_memory(mem_start_position, size)
log_data = computation.memory_read_bytes(mem_start_position, size)
computation.add_log_entry(
account=computation.msg.storage_address,
topics=topics,
data=log_data,
)
def log_XX(computation: BaseComputation, topic_count: int) -> None:
if topic_count < 0 or topic_count > 4:
raise TypeError("Invalid log topic size. Must be 0, 1, 2, 3, or 4")
mem_start_position, size = computation.stack_pop_ints(2)
if not topic_count:
topics: Tuple[int, ...] = ()
elif topic_count > 1:
topics = computation.stack_pop_ints(topic_count)
else:
topics = (computation.stack_pop1_int(), )
data_gas_cost = constants.GAS_LOGDATA * size
topic_gas_cost = constants.GAS_LOGTOPIC * topic_count
total_gas_cost = data_gas_cost + topic_gas_cost
computation.consume_gas(
total_gas_cost,
reason="Log topic and data gas cost",
)
computation.extend_memory(mem_start_position, size)
log_data = computation.memory_read_bytes(mem_start_position, size)
computation.add_log_entry(
account=computation.msg.storage_address,
topics=topics,
data=log_data,
)