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resolve: Add some asserts for unexpected lifetime rib combinations

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This commit is contained in:
Vadim Petrochenkov 2022-10-09 17:56:40 +04:00
parent 3cf5fc58d5
commit e8a6e60c5d
3 changed files with 115 additions and 12 deletions
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38
compiler/rustc_resolve/src/late.rs
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@ -1423,9 +1423,10 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
} else {
LifetimeUseSet::Many
}),
LifetimeRibKind::Generics { .. }
| LifetimeRibKind::ConstGeneric
| LifetimeRibKind::AnonConst => None,
LifetimeRibKind::Generics { .. } => None,
LifetimeRibKind::ConstGeneric | LifetimeRibKind::AnonConst => {
span_bug!(ident.span, "unexpected rib kind: {:?}", rib.kind)
}
})
.unwrap_or(LifetimeUseSet::Many);
debug!(?use_ctxt, ?use_set);
@ -1460,7 +1461,11 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
);
return;
}
_ => {}
LifetimeRibKind::AnonymousCreateParameter { .. }
| LifetimeRibKind::Elided(_)
| LifetimeRibKind::Generics { .. }
| LifetimeRibKind::ElisionFailure
| LifetimeRibKind::AnonymousReportError => {}
}
}
@ -1534,9 +1539,11 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
return;
}
LifetimeRibKind::Item => break,
LifetimeRibKind::Generics { .. }
| LifetimeRibKind::ConstGeneric
| LifetimeRibKind::AnonConst => {}
LifetimeRibKind::Generics { .. } | LifetimeRibKind::ConstGeneric => {}
LifetimeRibKind::AnonConst => {
// There is always an `Elided(LifetimeRes::Static)` inside an `AnonConst`.
span_bug!(lifetime.ident.span, "unexpected rib kind: {:?}", rib.kind)
}
}
}
self.record_lifetime_res(lifetime.id, LifetimeRes::Error, elision_candidate);
@ -1751,9 +1758,11 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
self.report_missing_lifetime_specifiers(vec![missing_lifetime], None);
break;
}
LifetimeRibKind::Generics { .. }
| LifetimeRibKind::ConstGeneric
| LifetimeRibKind::AnonConst => {}
LifetimeRibKind::Generics { .. } | LifetimeRibKind::ConstGeneric => {}
LifetimeRibKind::AnonConst => {
// There is always an `Elided(LifetimeRes::Static)` inside an `AnonConst`.
span_bug!(elided_lifetime_span, "unexpected rib kind: {:?}", rib.kind)
}
}
}
@ -3938,7 +3947,7 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
fn_id: NodeId,
async_node_id: Option<(NodeId, Span)>,
) {
if let Some((async_node_id, _)) = async_node_id {
if let Some((async_node_id, span)) = async_node_id {
let mut extra_lifetime_params =
self.r.extra_lifetime_params_map.get(&fn_id).cloned().unwrap_or_default();
for rib in self.lifetime_ribs.iter().rev() {
@ -3952,7 +3961,12 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
extra_lifetime_params.extend(earlier_fresh);
}
}
_ => {}
LifetimeRibKind::Generics { .. } => {}
_ => {
// We are in a function definition. We should only find `Generics`
// and `AnonymousCreateParameter` inside the innermost `Item`.
span_bug!(span, "unexpected rib kind: {:?}", rib.kind)
}
}
}
self.r.extra_lifetime_params_map.insert(async_node_id, extra_lifetime_params);