Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/cattrs/_generics.py: 46%

1from collections.abc import Mapping 

2from typing import Any 

3 

4from attrs import NOTHING 

5from typing_extensions import Self 

6 

7from ._compat import copy_with, get_args, is_annotated, is_generic 

8 

9 

10def deep_copy_with(t, mapping: Mapping[str, Any], self_is=NOTHING): 

11 args = get_args(t) 

12 rest = () 

13 if is_annotated(t) and args: 

14 # If we're dealing with `Annotated`, we only map the first type parameter 

15 rest = tuple(args[1:]) 

16 args = (args[0],) 

17 new_args = ( 

18 tuple( 

19 ( 

20 self_is 

21 if a is Self and self_is is not NOTHING 

22 else ( 

23 mapping[a.__name__] 

24 if hasattr(a, "__name__") and a.__name__ in mapping 

25 else (deep_copy_with(a, mapping, self_is) if is_generic(a) else a) 

26 ) 

27 ) 

28 for a in args 

29 ) 

30 + rest 

31 ) 

32 return copy_with(t, new_args) if new_args != args else t