mirror of
https://github.com/kuhyx/diet-guard.git
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24 lines
733 B
Python
24 lines
733 B
Python
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"""Small value-coercion helpers for diet_guard."""
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from __future__ import annotations
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def as_float(value: object) -> float:
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"""Coerce a stored field to ``float``, defaulting to 0.0.
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Booleans are rejected (they are an ``int`` subclass but never a real numeric
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measurement here) and any non-numeric value yields 0.0, so callers reading
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semi-structured log/bank data get a safe number without guarding each read.
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Args:
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value: A value read back from a JSON-ish store.
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Returns:
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The value as a float, or 0.0 when it is absent, a bool, or non-numeric.
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"""
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if isinstance(value, bool):
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return 0.0
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if isinstance(value, (int, float)):
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return float(value)
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return 0.0
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