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bundles / papyri latest / papyri / node_base / _coerce_field

function

papyri.node_base:_coerce_field

source: /papyri/node_base.py :25

Signature

def   _coerce_field ( ann : Any ,  val : Any )  →  Any

Summary

Coerce val to the mutable→immutable type the annotation requires.

Extended Summary

Node fields annotated as tuple[T, ...] must be tuples at runtime so that cbor2 ≥ 6 (which decodes CBOR arrays inside tagged values as tuples) and code that passes plain Python lists both produce the same stored type.

Also handles Optional[tuple[T, ...]] (i.e. tuple[T, ...] | None).

Aliases

  • papyri.node_base._coerce_field