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d21cb06 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | # Copyright (C) 2020 Intel Corporation
#
# SPDX-License-Identifier: MIT
import attr
_NOTSET = object()
def not_empty(inst, attribute, x):
assert len(x) != 0, x
def default_if_none(conv):
def validator(inst, attribute, value):
default = attribute.default
if value is None:
if callable(default):
value = default()
elif isinstance(default, attr.Factory):
value = default.factory()
else:
value = default
elif not isinstance(value, attribute.type or conv):
value = conv(value)
setattr(inst, attribute.name, value)
return validator
def ensure_cls(c):
def converter(arg):
if isinstance(arg, c):
return arg
else:
return c(**arg)
return converter |