31 lines
798 B
Python
31 lines
798 B
Python
"""
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Internal objects to support the UUID adapters.
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"""
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# Copyright (C) 2025 The Psycopg Team
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import uuid
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# Re-exports
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UUID = uuid.UUID
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SafeUUID_unknown = uuid.SafeUUID.unknown
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class _WritableUUID(UUID):
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"""Temporary class, with the same memory layout of UUID, but writable.
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This class must have the same memory layout of the UUID class, so we can
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create one, setting the `int` attribute, and changing the `__class__`,
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which should be faster than calling the complex UUID.__init__ machinery.
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u = _WritableUUID()
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u.is_safe = ...
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u.int = ...
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u.__class__ = UUID
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"""
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__slots__ = () # Give the class the same memory layout of the base clasee
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# Make the class writable.
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__setattr__ = object.__setattr__ # type: ignore[assignment]
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