view relnotes/next @ 45607:75f785888a7b

rust-matchers: make `Matcher` trait object-safe

Before this patch, it is not possible to create a `Matcher` trait-object (like
`Box<dyn Matcher>`), because of the use of a generic parameters in some methods,
namely `impl AsRef<HgPath>`.

While this makes the interface less flexible for callers in theory, it does not
change anything in the current codebase.

Until something like [1] is implemented, this is a "tradeoff" that we need to
make anyway.

[1] https://internals.rust-lang.org/t/pre-rfc-expand-object-safety/12693

Differential Revision: https://phab.mercurial-scm.org/D9071

== New Features ==

 * `hg mv -A` can now be used with `--at-rev`. It behaves just like
   `hg cp -A --at-rev`, i.e. it marks the destination as a copy of the
   source whether or not the source still exists (but the source must
   exist in the parent revision).


== New Experimental Features ==



== Bug Fixes ==



== Backwards Compatibility Changes ==



== Internal API Changes ==

 * `merge.update()` is now private (renamed to `_update()`). Hopefully
   the higher-level functions available in the same module cover your
   use cases.