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uv-resolver: use disjointness checks instead of marker equality (#8661)

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When this code was written, we didn't have "proper" disjointness checks,
and so simple equality was used instead. Arguably disjointness checks
are
more correct, and this would also simplify some case analysis in an
ongoing
refactor.
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Andrew Gallant 2024-10-29 11:25:18 -04:00 • committed by GitHub
parent c335dc5e5d
commit a56e521179
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2 changed files with 13 additions and 13 deletions
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8
crates/uv-resolver/src/candidate_selector.rs
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@ -178,11 +178,15 @@ impl CandidateSelector {
let preferences_match =
preferences.get(package_name).filter(|(marker, _version)| {
// `.unwrap_or(true)` because the universal marker is considered matching.
marker.map(|marker| marker == fork_markers).unwrap_or(true)
marker
.map(|marker| !marker.is_disjoint(fork_markers))
.unwrap_or(true)
});
let preferences_mismatch =
preferences.get(package_name).filter(|(marker, _version)| {
marker.map(|marker| marker != fork_markers).unwrap_or(false)
marker
.map(|marker| marker.is_disjoint(fork_markers))
.unwrap_or(false)
});
self.get_preferred_from_iter(
preferences_match.chain(preferences_mismatch),