##// END OF EJS Templates
dirstate-tree: Remove newly-empty nodes after removing a `DirstateEntry`...
dirstate-tree: Remove newly-empty nodes after removing a `DirstateEntry` This is actually necessary to make `DirstateMap::has_dir` correct, since it assumes that a node without a `DirstateEntry` has at least one descedant node with a `DirstateEntry`. This bug would become apparent when a later changeset persists tree nodes on disk in the "dirstate-v2" format. Differential Revision: https://phab.mercurial-scm.org/D10706

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conversion.rs
28 lines | 1.0 KiB | application/rls-services+xml | RustLexer
Georges Racinet
rust-cpython: moved generic conversion fn out of ancestors module...
r41276 // conversion.rs
//
// Copyright 2019 Georges Racinet <georges.racinet@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.
//! Bindings for the hg::ancestors module provided by the
//! `hg-core` crate. From Python, this will be seen as `rustext.ancestor`
Georges Racinet
rust-cpython: removed now useless py_set() conversion...
r43563 use cpython::{ObjectProtocol, PyObject, PyResult, Python};
Georges Racinet
rust-cpython: moved generic conversion fn out of ancestors module...
r41276 use hg::Revision;
use std::iter::FromIterator;
/// Utility function to convert a Python iterable into various collections
///
/// We need this in particular to feed to various methods of inner objects
/// with `impl IntoIterator<Item=Revision>` arguments, because
/// a `PyErr` can arise at each step of iteration, whereas these methods
/// expect iterables over `Revision`, not over some `Result<Revision, PyErr>`
pub fn rev_pyiter_collect<C>(py: Python, revs: &PyObject) -> PyResult<C>
where
C: FromIterator<Revision>,
{
revs.iter(py)?
.map(|r| r.and_then(|o| o.extract::<Revision>(py)))
.collect()
}