Mercurial > hg
view rust/hg-core/src/config.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> |
---|---|
date | Thu, 09 Sep 2021 18:07:40 +0200 |
parents | ebdef6283798 |
children | 39c447e03dbc |
line wrap: on
line source
// config.rs // // Copyright 2020 // Valentin Gatien-Baron, // Raphaël Gomès <rgomes@octobus.net> // // This software may be used and distributed according to the terms of the // GNU General Public License version 2 or any later version. //! Mercurial config parsing and interfaces. mod config; mod layer; mod values; pub use config::{Config, ConfigSource, ConfigValueParseError}; pub use layer::{ConfigError, ConfigParseError};