Add `Struct.copy()` which does a rountrip validate

drop_pydantic
Tyler Goodlet 2022-07-08 10:54:04 -04:00
parent 11b6699a54
commit c26acb1fa8
1 changed files with 22 additions and 0 deletions

View File

@ -18,6 +18,7 @@
Built-in (extension) types.
"""
from typing import Optional
from pprint import pformat
import msgspec
@ -43,4 +44,25 @@ class Struct(
def __repr__(self):
return f'Struct({pformat(self.to_dict())})'
def copy(
self,
update: Optional[dict] = None,
) -> msgspec.Struct:
'''
Validate-typecast all self defined fields, return a copy of us
with all such fields.
This is kinda like the default behaviour in `pydantic.BaseModel`.
'''
if update:
for k, v in update.items():
setattr(self, k, v)
# roundtrip serialize to validate
return msgspec.msgpack.Decoder(
type=type(self)
).decode(
msgspec.msgpack.Encoder().encode(self)
)