kenneth.skovhede@gmail.com
20a6757d56
git-svn-id: https://duplicati.googlecode.com/svn/trunk@11 59da171f-624f-0410-aa54-27559c288bec
54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
###########################################################################
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#
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# Psyco class support module.
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# Copyright (C) 2001-2002 Armin Rigo et.al.
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"""Psyco class support module.
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'psyco.classes.psyobj' is an alternate Psyco-optimized root for classes.
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Any class inheriting from it or using the metaclass '__metaclass__' might
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get optimized specifically for Psyco. It is equivalent to call
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psyco.bind() on the class object after its creation.
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Note that this module has no effect with Python version 2.1 or earlier.
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Importing everything from psyco.classes in a module will import the
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'__metaclass__' name, so all classes defined after a
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from psyco.classes import *
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will automatically use the Psyco-optimized metaclass.
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"""
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###########################################################################
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__all__ = ['psyobj', 'psymetaclass', '__metaclass__']
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# Python version check
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try:
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from _psyco import compacttype
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except ImportError:
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class psyobj: # compatilibity
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pass
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psymetaclass = None
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else:
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# version >= 2.2 only
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import core
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from types import FunctionType
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class psymetaclass(compacttype):
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"Psyco-optimized meta-class. Turns all methods into Psyco proxies."
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def __new__(cls, name, bases, dict):
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bindlist = dict.get('__psyco__bind__')
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if bindlist is None:
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bindlist = [key for key, value in dict.items()
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if isinstance(value, FunctionType)]
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for attr in bindlist:
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dict[attr] = core.proxy(dict[attr])
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return super(psymetaclass, cls).__new__(cls, name, bases, dict)
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psyobj = psymetaclass("psyobj", (), {})
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__metaclass__ = psymetaclass
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