typing: add type hints to `mercurial.dirstatemap` Somewhere since 10db46e128d4, pytype stopped being able to infer the type of the `identity` field. Fill in some obvious other hints along the way. These hints caused pytype to flag a missing attribute: File "/mnt/c/Users/Matt/hg/mercurial/dirstatemap.py", line 714, in _v1_map: No attribute 'stat' on mercurial.windows.cachestat [attribute-error] In Union[Any, mercurial.posix.cachestat, mercurial.windows.cachestat] File "/mnt/c/Users/Matt/hg/mercurial/dirstatemap.py", line 715, in _v1_map: No attribute 'stat' on mercurial.windows.cachestat [attribute-error] In Union[Any, mercurial.posix.cachestat, mercurial.windows.cachestat] In practice, the `identity` field is NOT replaced with None if it isn't cacheable, so it's probably safer to just add the field and set it to None, since that check is already in place on line 715.

--- a/mercurial/typelib.py	Thu Jul 18 19:55:51 2024 -0400
+++ b/mercurial/typelib.py	Thu Jul 18 19:57:42 2024 -0400
@@ -21,8 +21,21 @@
 if TYPE_CHECKING:
     from typing import (
         BinaryIO,
+        Union,
+    )
+
+    from . import (
+        node,
+        posix,
+        windows,
     )
 
     BinaryIO_Proxy = BinaryIO
+    CacheStat = Union[posix.cachestat, windows.cachestat]
+    NodeConstants = node.sha1nodeconstants
 else:
+    from typing import Any
+
     BinaryIO_Proxy = object
+    CacheStat = Any
+    NodeConstants = Any