(
dc_field: dataclasses.Field,
type_resolver,
type_hints: dict[str, typing.Any],
)
| 318 | |
| 319 | |
| 320 | def resolve_missing_field_default( |
| 321 | dc_field: dataclasses.Field, |
| 322 | type_resolver, |
| 323 | type_hints: dict[str, typing.Any], |
| 324 | ) -> typing.Callable[[], typing.Any]: |
| 325 | type_hint = type_hints.get(dc_field.name, typing.Any) |
| 326 | unwrapped_type, is_optional = unwrap_optional(type_hint) |
| 327 | meta = extract_field_meta(dc_field) |
| 328 | effective_nullable = (meta.nullable if meta is not None else type_resolver.field_nullable) or is_optional |
| 329 | |
| 330 | if dc_field.default is not dataclasses.MISSING: |
| 331 | default_value = dc_field.default |
| 332 | if default_value is None and not effective_nullable and is_subclass(unwrapped_type, enum.Enum): |
| 333 | members = tuple(unwrapped_type) |
| 334 | if members: |
| 335 | default_value = members[0] |
| 336 | return lambda value=default_value: value |
| 337 | |
| 338 | if dc_field.default_factory is not dataclasses.MISSING: |
| 339 | return dc_field.default_factory |
| 340 | |
| 341 | if not effective_nullable: |
| 342 | unwrapped_type = normalize_fory_type(unwrapped_type) |
| 343 | origin = typing.get_origin(unwrapped_type) if hasattr(typing, "get_origin") else getattr(unwrapped_type, "__origin__", None) |
| 344 | origin = origin or unwrapped_type |
| 345 | if is_subclass(unwrapped_type, enum.Enum): |
| 346 | members = tuple(unwrapped_type) |
| 347 | if members: |
| 348 | default_value = members[0] |
| 349 | return lambda value=default_value: value |
| 350 | if origin is list or origin == typing.List: |
| 351 | return lambda: [] |
| 352 | if origin is set or origin == typing.Set: |
| 353 | return lambda: set() |
| 354 | if origin is dict or origin == typing.Dict: |
| 355 | return lambda: {} |
| 356 | if unwrapped_type is bool: |
| 357 | return lambda: False |
| 358 | if unwrapped_type in _MISSING_DEFAULT_INT_TYPES: |
| 359 | return lambda: 0 |
| 360 | if unwrapped_type in _MISSING_DEFAULT_FLOAT_TYPES: |
| 361 | return lambda: 0.0 |
| 362 | if unwrapped_type is str: |
| 363 | return lambda: "" |
| 364 | if unwrapped_type is bytes: |
| 365 | return lambda: b"" |
| 366 | return lambda: None |
| 367 | |
| 368 | |
| 369 | def _resolve_missing_field_default(dc_field, type_resolver, type_hints): |
no test coverage detected