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annotate pytouhou/vm/common.py @ 446:3a33ed7f3b85

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Make pytouhou.game.item an extension type.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 17 Aug 2013 06:01:45 +0200
parents 69ec72b990a4
children e15672733c93
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
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4 ##
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5 ## This program is free software; you can redistribute it and/or modify
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6 ## it under the terms of the GNU General Public License as published
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7 ## by the Free Software Foundation; version 3 only.
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8 ##
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9 ## This program is distributed in the hope that it will be useful,
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ## GNU General Public License for more details.
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13 ##
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14
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15
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16 class MetaRegistry(type):
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17 def __new__(mcs, name, bases, classdict):
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18 instruction_handlers = {}
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19 for item in classdict.itervalues():
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20 if hasattr(item, '_instruction_ids'):
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21 for version, instruction_ids in item._instruction_ids.iteritems():
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22 for id_ in instruction_ids:
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23 instruction_handlers.setdefault(version, {})[id_] = item
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24 classdict['_handlers'] = instruction_handlers
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25 return type.__new__(mcs, name, bases, classdict)
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28
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29 def instruction(instruction_id, version=6):
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30 def _decorator(func):
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31 if not hasattr(func, '_instruction_ids'):
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32 func._instruction_ids = {}
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33 func._instruction_ids.setdefault(version, set()).add(instruction_id)
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34 return func
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35 return _decorator