Mercurial > hg
view rust/hg-core/src/testing.rs @ 47374:bd88b6bfd8da
rhg: Add support for dirstate-v2
Differential Revision: https://phab.mercurial-scm.org/D10804
author | Simon Sapin <simon.sapin@octobus.net> |
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date | Tue, 25 May 2021 09:20:30 +0200 |
parents | 168041fa6d5f |
children | 4c5f6e95df84 |
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// testing.rs // // Copyright 2018 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. use crate::{Graph, GraphError, Revision, NULL_REVISION}; /// A stub `Graph`, same as the one from `test-ancestor.py` /// /// o 13 /// | /// | o 12 /// | | /// | | o 11 /// | | |\ /// | | | | o 10 /// | | | | | /// | o---+ | 9 /// | | | | | /// o | | | | 8 /// / / / / /// | | o | 7 /// | | | | /// o---+ | 6 /// / / / /// | | o 5 /// | |/ /// | o 4 /// | | /// o | 3 /// | | /// | o 2 /// |/ /// o 1 /// | /// o 0 #[derive(Clone, Debug)] pub struct SampleGraph; impl Graph for SampleGraph { fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> { match rev { 0 => Ok([NULL_REVISION, NULL_REVISION]), 1 => Ok([0, NULL_REVISION]), 2 => Ok([1, NULL_REVISION]), 3 => Ok([1, NULL_REVISION]), 4 => Ok([2, NULL_REVISION]), 5 => Ok([4, NULL_REVISION]), 6 => Ok([4, NULL_REVISION]), 7 => Ok([4, NULL_REVISION]), 8 => Ok([NULL_REVISION, NULL_REVISION]), 9 => Ok([6, 7]), 10 => Ok([5, NULL_REVISION]), 11 => Ok([3, 7]), 12 => Ok([9, NULL_REVISION]), 13 => Ok([8, NULL_REVISION]), r => Err(GraphError::ParentOutOfRange(r)), } } } // A Graph represented by a vector whose indices are revisions // and values are parents of the revisions pub type VecGraph = Vec<[Revision; 2]>; impl Graph for VecGraph { fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> { Ok(self[rev as usize]) } }