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rust-index: using the `hg::index::Index` in ancestors iterator and lazy set...
rust-index: using the `hg::index::Index` in ancestors iterator and lazy set Since there is no Rust implementation for REVLOGV2/CHANGELOGv2, we declare them to be incompatible with Rust, hence indexes in these formats will use the implementations from Python `mercurial.ancestor`. If this is an unacceptable performance hit for current users of these formats, we can later on add Rust implementations based on the C index for them or implement these formats for the Rust indexes. Among the challenges that we had to meet, we wanted to avoid taking the GIL each time the inner (vcsgraph) iterator has to call the parents function. This would probably still be acceptable in terms of performance with `AncestorsIterator`, but not with `LazyAncestors` nor for the upcoming change in `MissingAncestors`. Hence we enclose the reference to the index in a `PySharedRef`, leading to more rigourous checking of mutations, which does pass now that there no logically immutable methods of `hg::index::Index` that take a mutable reference as input.

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Cargo.toml
22 lines | 474 B | application/toml | TOMLLexer
Yuya Nishihara
rust-chg: add project skeleton...
r40003 [package]
name = "chg"
version = "0.1.0"
authors = ["Yuya Nishihara <yuya@tcha.org>"]
description = "Client for Mercurial command server with cHg extension"
license = "GPL-2.0+"
Yuya Nishihara
rust-chg: upgrade to 2018 edition and remove useless extern crates...
r45179 edition = "2018"
Yuya Nishihara
rust-chg: add project skeleton...
r40003
[dependencies]
Yuya Nishihara
rust-chg: upgrade to futures-0.3 based libraries...
r45231 async-trait = "0.1"
bytes = "0.5"
futures = "0.3"
Yuya Nishihara
rust-chg: add project skeleton...
r40003 libc = "0.2"
Yuya Nishihara
rust-chg: depend on log and tokio_timer...
r40323 log = { version = "0.4", features = ["std"] }
Yuya Nishihara
rust-chg: upgrade to futures-0.3 based libraries...
r45231 tokio-hglib = "0.3"
[dependencies.tokio]
version = "0.2"
features = ["rt-core", "io-util", "time", "process", "macros"]
Yuya Nishihara
rust-chg: add project skeleton...
r40003
[build-dependencies]
cc = "1.0"