mercurial/defaultrc/__init__.py
author |
Arseniy Alekseyev <aalekseyev@janestreet.com> |
|
Mon, 15 Apr 2024 16:33:37 +0100 |
branch | stable |
changeset 51571 |
74230abb2504 |
parent 43871 |
1390bb81163e
|
permissions |
-rw-r--r-- |
match: strengthen visit_children_set invariant, Recursive means "all files"
My previous interpretation of "Recursive" was too relaxed: I thought it
instructed the caller to do something like this:
> you can stop calling `visit_children_set` because you'll need to descend into
> every directory recursively, but you should still check every file if it
> matches or not
Whereas the real instruction seems to be:
> I guarantee that everything in this subtree matches, you can stop
> querying the matcher for all files and dirs altogether.
The evidence to support this:
- the test actually passes with the stronger invariant, revealing no
exceptions from this rule
- the implementation of `visit_children_set` for `DifferenceMatcher`
clearly relies on this requirement, so it must hold for that not to
lead to bugs.