def gather_errors(func: Callable[..., ValidatorResult[T]]) -> Callable[..., T]:
if not isgeneratorfunction(func):
raise TypeError("func must be a generator returning a ValidatorResult")
@wraps(func)
def wrapper(*args, **kwargs):
result, errors = func(*args, **kwargs), []
while True:
try:
errors.append(next(result))
except StopIteration as stop:
if errors:
raise build_validation_error(errors)
return stop.value
if "return" in func.__annotations__:
ret = func.__annotations__["return"]
if isinstance(ret, str):
match = re.match(r"ValidatorResult\[(?P<ret>.*)\]", ret)
if match is not None:
ret = match.groupdict("ret")
else:
annotations = get_args(ret)[1:] if is_annotated(ret) else ()
if get_origin2(ret) == GeneratorOrigin:
ret = get_args2(ret)[2]
if annotations:
ret = Annotated[(ret, *annotations)]
wrapper.__annotations__["return"] = ret
return wrapper
def full_metadata(self) -> Mapping[str, Any]:
if not is_annotated(self.type):
return self.metadata
return ChainMap(
self.metadata,
*(arg for arg in reversed(get_args(self.type)[1:])
if isinstance(arg, Mapping)),
)
def merged_schema(
schema: Optional[Schema],
tp: Optional[AnyType]) -> Tuple[Optional[Schema], Mapping[str, Any]]:
if is_annotated(tp):
for annotation in reversed(get_args(tp)[1:]):
if isinstance(annotation, TypeNameFactory):
break
elif isinstance(annotation,
Mapping) and SCHEMA_METADATA in annotation:
schema = merge_schema(annotation[SCHEMA_METADATA], schema)
schema_dict: Dict[str, Any] = {}
if schema is not None:
schema.merge_into(schema_dict)
return schema, schema_dict
def keep_annotations(tp: AnyType, annotated: AnyType) -> AnyType:
return Annotated[(
tp, *get_args(annotated)[1:])] if is_annotated(annotated) else tp
def _annotated(tp: AnyType) -> AnyType:
return get_args(tp)[0] if is_annotated(tp) else tp
def __call__(self, tp: T) -> T:
if is_annotated(tp):
raise TypeError("Cannot register schema on Annotated type")
_schemas[replace_builtins(tp)] = self
return tp