91 lines
2.4 KiB
Python
91 lines
2.4 KiB
Python
# tractor: structured concurrent "actors".
|
|
# Copyright 2018-eternity Tyler Goodlet.
|
|
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Affero General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Affero General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU Affero General Public License
|
|
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
'''
|
|
Type-extension-utils for codec-ing (python) objects not
|
|
covered by the `msgspec.msgpack` protocol.
|
|
|
|
See the various API docs from `msgspec`.
|
|
|
|
extending from native types,
|
|
- https://jcristharif.com/msgspec/extending.html#mapping-to-from-native-types
|
|
|
|
converters,
|
|
- https://jcristharif.com/msgspec/converters.html
|
|
- https://jcristharif.com/msgspec/api.html#msgspec.convert
|
|
|
|
`Raw` fields,
|
|
- https://jcristharif.com/msgspec/api.html#raw
|
|
- support for `.convert()` and `Raw`,
|
|
|_ https://jcristharif.com/msgspec/changelog.html
|
|
|
|
'''
|
|
import typing
|
|
from typing import (
|
|
Type,
|
|
Union,
|
|
)
|
|
|
|
def dec_type_union(
|
|
type_names: list[str],
|
|
) -> Type:
|
|
'''
|
|
Look up types by name, compile into a list and then create and
|
|
return a `typing.Union` from the full set.
|
|
|
|
'''
|
|
import importlib
|
|
types: list[Type] = []
|
|
for type_name in type_names:
|
|
for mod in [
|
|
typing,
|
|
importlib.import_module(__name__),
|
|
]:
|
|
if type_ref := getattr(
|
|
mod,
|
|
type_name,
|
|
False,
|
|
):
|
|
types.append(type_ref)
|
|
|
|
# special case handling only..
|
|
# ipc_pld_spec: Union[Type] = eval(
|
|
# pld_spec_str,
|
|
# {}, # globals
|
|
# {'typing': typing}, # locals
|
|
# )
|
|
|
|
return Union[*types]
|
|
|
|
|
|
def enc_type_union(
|
|
union_or_type: Union[Type]|Type,
|
|
) -> list[str]:
|
|
'''
|
|
Encode a type-union or single type to a list of type-name-strings
|
|
ready for IPC interchange.
|
|
|
|
'''
|
|
type_strs: list[str] = []
|
|
for typ in getattr(
|
|
union_or_type,
|
|
'__args__',
|
|
{union_or_type,},
|
|
):
|
|
type_strs.append(typ.__qualname__)
|
|
|
|
return type_strs
|