15 lines
433 B
Python
15 lines
433 B
Python
def lazy(f):
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'''
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Prevents certain properties from having to be recomputed each time they are referenced
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'''
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def wrapper(*args, **kwargs):
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o = args[0]
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if "_lazy" not in o.__dict__:
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o.__dict__["_lazy"] = {}
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name = f.__name__ + str(args) + str(kwargs),
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if name not in o.__dict__["_lazy"]:
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o.__dict__["_lazy"][name] = f(*args, **kwargs)
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return o.__dict__["_lazy"][name]
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wrapper.__name__ = f.__name__
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return wrapper
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