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15 lines
630 B
Python
15 lines
630 B
Python
# Generic singleton class from the Exegol project
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from typing import Dict
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class MetaSingleton(type):
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"""Metaclass to create a singleton class"""
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__instances: Dict[type, object] = {}
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def __call__(cls, *args, **kwargs) -> object:
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"""Redirects each call to the current class to the corresponding single instance"""
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if cls not in MetaSingleton.__instances:
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# If the instance does not already exist, it is created
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MetaSingleton.__instances[cls] = super(MetaSingleton, cls).__call__(*args, **kwargs)
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# Return the desired object
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return MetaSingleton.__instances[cls] |