stats.py 文件源码

def combine(*messages: t.Tuple[t.Optional['StatMessage']]) -> t.List['StatMessage']:
        """
        Combines all message of the same type and with the same parent in the passed list.
        Ignores None entries.

        :param messages: passed list of messages
        :return: new reduced list
        """
        msgs = set([msg for msg in messages if msg is not None]) # t.Set['StatMessage']
        something_changed = True
        while something_changed:
            something_changed = False
            merged_pair = None # type: t.Tuple['StatMessage', 'StatMessage']
            for (msg, msg2) in itertools.product(msgs, msgs):
                if msg is not msg2:
                    if msg.parent.eq_except_property(msg2.parent) and type(msg) == type(msg2):
                        merged_pair = (msg, msg2)
                        something_changed = True
                        break
            if something_changed:
                msg, msg2 = merged_pair
                msgs.remove(msg)
                msgs.remove(msg2)
                msgs.add(msg + msg2)
        return list(msgs)