Mercurial > hg
annotate rust/hg-core/src/dirstate_tree.rs @ 47954:4afd6cc447b9
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> |
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date | Thu, 09 Sep 2021 18:07:40 +0200 |
parents | bd88b6bfd8da |
children | 3d0a9c6e614d |
rev | line source |
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47095
473abf4728bf
dirstate-tree: Empty shell for a second Rust DirstateMap implementation
Simon Sapin <simon.sapin@octobus.net>
parents:
47093
diff
changeset
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1 pub mod dirstate_map; |
47093
787ff5d21bcd
dirstate-tree: Make Rust DirstateMap bindings go through a trait object
Simon Sapin <simon.sapin@octobus.net>
parents:
diff
changeset
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2 pub mod dispatch; |
47280
1766130fe9ba
dirstate-v2: Change the on-disk format when the requirement is enabled
Simon Sapin <simon.sapin@octobus.net>
parents:
47112
diff
changeset
|
3 pub mod on_disk; |
47954
4afd6cc447b9
rust: Make OwningDirstateMap generic and move it into hg-core
Simon Sapin <simon.sapin@octobus.net>
parents:
47374
diff
changeset
|
4 pub mod owning; |
4afd6cc447b9
rust: Make OwningDirstateMap generic and move it into hg-core
Simon Sapin <simon.sapin@octobus.net>
parents:
47374
diff
changeset
|
5 mod owning_dispatch; |
47096
3c11c24b82b6
dirstate-tree: Add `WithBasename` wrapper for `HgPath`
Simon Sapin <simon.sapin@octobus.net>
parents:
47095
diff
changeset
|
6 pub mod path_with_basename; |
47374
bd88b6bfd8da
rhg: Add support for dirstate-v2
Simon Sapin <simon.sapin@octobus.net>
parents:
47280
diff
changeset
|
7 pub mod status; |