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Rollup merge of #76888 - matthiaskrgr:clippy_single_match_2, r=Dylan-DPC

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use if let instead of single match arm expressions

use if let instead of single match arm expressions to compact code and reduce nesting (clippy::single_match)
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ecstatic-morse 2020-09-21 20:40:55 -07:00 • committed by GitHub
commit dcf4d1f2be
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8 changed files with 28 additions and 58 deletions
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18
compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs
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@ -488,18 +488,16 @@ impl<'tcx> Visitor<'tcx> for HirTraitObjectVisitor {
}
fn visit_ty(&mut self, t: &'tcx hir::Ty<'tcx>) {
match t.kind {
TyKind::TraitObject(
poly_trait_refs,
Lifetime { name: LifetimeName::ImplicitObjectLifetimeDefault, .. },
) => {
for ptr in poly_trait_refs {
if Some(self.1) == ptr.trait_ref.trait_def_id() {
self.0.push(ptr.span);
}
if let TyKind::TraitObject(
poly_trait_refs,
Lifetime { name: LifetimeName::ImplicitObjectLifetimeDefault, .. },
) = t.kind
{
for ptr in poly_trait_refs {
if Some(self.1) == ptr.trait_ref.trait_def_id() {
self.0.push(ptr.span);
}
}
_ => {}
}
walk_ty(self, t);
}