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changeset 53244:1b1d7cc9d30e

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revlog: convert version features dict to a `TypedDict` Every key for each version corresponds to the same value type, so typing them out explicitly means we don't have to handle the union of all value types for every key.
author Matt Harbison <matt_harbison@yahoo.com>
date Wed, 30 Apr 2025 00:12:23 -0400
parents d9c7a3e4b95a
children af86422250b2
files mercurial/revlogutils/constants.py
diffstat 1 files changed, 17 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/revlogutils/constants.py	Wed Apr 30 11:23:27 2025 -0400
+++ b/mercurial/revlogutils/constants.py	Wed Apr 30 00:12:23 2025 -0400
@@ -10,6 +10,12 @@
 from __future__ import annotations
 
 import struct
+import typing
+
+from typing import (
+    Callable,
+    TypedDict,
+)
 
 from ..interfaces import repository
 from .. import revlogutils
@@ -278,7 +284,17 @@
     return lambda flags: bool(flags & flag)
 
 
-FEATURES_BY_VERSION = {
+if typing.TYPE_CHECKING:
+    _FromFlagsFnc = Callable[[int], bool]
+
+    class RevlogFeatures(TypedDict):
+        inline: _FromFlagsFnc
+        generaldelta: _FromFlagsFnc
+        sidedata: bool
+        docket: bool
+
+
+FEATURES_BY_VERSION: dict[int, RevlogFeatures] = {
     REVLOGV0: {
         'inline': _no,
         'generaldelta': _no,