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Rewrite nested if conditions into a single match

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This commit is contained in:
Oli Scherer 2023-04-25 07:42:09 +00:00
parent 31ae7c46bd
commit 84a43f0e3a
1 changed files with 7 additions and 6 deletions
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13
compiler/rustc_middle/src/ty/util.rs
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@ -473,16 +473,17 @@ impl<'tcx> TyCtxt<'tcx> {
let mut seen = GrowableBitSet::default();
for arg in substs {
match arg.unpack() {
GenericArgKind::Lifetime(lt) => {
if ignore_regions == CheckRegions::OnlyEarlyBound {
let ty::ReEarlyBound(p) = lt.kind() else {
return Err(NotUniqueParam::NotParam(lt.into()))
};
GenericArgKind::Lifetime(lt) => match (ignore_regions, lt.kind()) {
(CheckRegions::OnlyEarlyBound, ty::ReEarlyBound(p)) => {
if !seen.insert(p.index) {
return Err(NotUniqueParam::DuplicateParam(lt.into()));
}
}
}
(CheckRegions::OnlyEarlyBound, _) => {
return Err(NotUniqueParam::NotParam(lt.into()));
}
(CheckRegions::No, _) => {}
},
GenericArgKind::Type(t) => match t.kind() {
ty::Param(p) => {
if !seen.insert(p.index) {