Mercurial > hg-stable
comparison rust/Cargo.lock @ 47982:4afd6cc447b9
rust: Make OwningDirstateMap generic and move it into hg-core
This will enable using it in rhg too.
The `OwningDirstateMap::new_empty` constructor is generic and accepts a value
of any type that gives acces to a bytes buffer. That buffer must stay valid
as long as the value hasn’t been dropped, and must keep its memory address
even if the value is moved. The `StableDeref` marker trait encodes those
constraints. Previously no trait was needed because the value was always
of type `PyBytes` which we know satisfies those constraints.
The buffer type is ereased in the struct itself through boxing and
dynamic dispatch, in order to simplify other signatures that mention
`OwningDirstateMap`.
Differential Revision: https://phab.mercurial-scm.org/D11396
| author | Simon Sapin <simon.sapin@octobus.net> |
|---|---|
| date | Thu, 09 Sep 2021 18:07:40 +0200 |
| parents | 5decb7a49bb6 |
| children | e834b79def74 |
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