wrapper/construct-typing
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added Constructable Protocol

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This commit is contained in:
Tim Rid 2022-02-13 16:04:27 +01:00
parent e91bd27589
commit db9b35a0c2
1 changed files with 17 additions and 0 deletions
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17
construct_typed/generic_wrapper.py
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@ -39,3 +39,20 @@ else:
ConstantOrContextLambda = t.Union[ValueType, t.Callable[[Context], t.Any]]
PathType = str
@t.runtime_checkable
class Constructable(t.Protocol[ParsedType, BuildTypes]):
def __construct__(self) -> "Construct[ParsedType, BuildTypes]":
raise NotImplementedError
def construct(
constr: t.Union[
Constructable[ParsedType, BuildTypes], "Construct[ParsedType, BuildTypes]"
],
) -> Construct[ParsedType, BuildTypes]:
"""Get construct instance of `Constructable` or `Construct`"""
if isinstance(constr, Constructable):
constr = constr.__construct__()
return constr