D7674: typing: add a couple of assertions to lrucachedict to help pytype

[mharbison72 (Matt Harbison)]

mharbison72 created this revision.
Herald added a subscriber: mercurial-devel.
Herald added a reviewer: hg-reviewers.

REVISION SUMMARY
  Fixes the following warnings:
  
    line 1488, in pop: No attribute 'markempty' on None [attribute-error]
         In Optional[Union[Any, _lrucachenode, nothing]]
    line 1578, in popoldest: No attribute 'markempty' on None [attribute-error]
         In Optional[Union[Any, _lrucachenode, nothing]]

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D7674

AFFECTED FILES
  mercurial/util.py

CHANGE DETAILS

diff --git a/mercurial/util.py b/mercurial/util.py
--- a/mercurial/util.py
+++ b/mercurial/util.py
@@ -1480,6 +1480,8 @@
             if default is _notset:
                 raise
             return default
+
+        assert node is not None  # help pytype
         value = node.value
         self.totalcost -= node.cost
         node.markempty()
@@ -1567,6 +1569,8 @@
         while n.key is _notset:
             n = n.prev
 
+        assert n is not None  # help pytype
+
         key, value = n.key, n.value
 
         # And remove it from the cache and mark it as empty.



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Cc: mercurial-devel