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Use the same message as type & const generics.

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This commit is contained in:
Camille GILLOT
2022-06-02 20:46:40 +02:00
parent 86bd99060c
commit 2aa9c703ce
9 changed files with 50 additions and 71 deletions
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48
compiler/rustc_resolve/src/late.rs
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@@ -1885,9 +1885,8 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
let mut function_value_rib = Rib::new(kind);
let mut function_lifetime_rib = LifetimeRib::new(lifetime_kind);
let mut seen_bindings = FxHashMap::default();
// Store all seen lifetimes names, and whether they were created in the currently processed
// parameter set.
let mut seen_lifetimes = FxHashMap::default();
// Store all seen lifetimes names from outer scopes.
let mut seen_lifetimes = FxHashSet::default();
// We also can't shadow bindings from the parent item
if let AssocItemRibKind = kind {
@@ -1905,7 +1904,7 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
// Forbid shadowing lifetime bindings
for rib in self.lifetime_ribs.iter().rev() {
seen_lifetimes.extend(rib.bindings.iter().map(|(ident, _)| (*ident, false)));
seen_lifetimes.extend(rib.bindings.iter().map(|(ident, _)| *ident));
if let LifetimeRibKind::Item = rib.kind {
break;
}
@@ -1915,35 +1914,28 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
let ident = param.ident.normalize_to_macros_2_0();
debug!("with_generic_param_rib: {}", param.id);
if let GenericParamKind::Lifetime = param.kind {
match seen_lifetimes.entry(ident) {
Entry::Occupied(entry) => {
let original = *entry.key();
let orig_is_param = *entry.get();
diagnostics::signal_lifetime_shadowing(
self.r.session,
original,
param.ident,
orig_is_param,
);
if let GenericParamKind::Lifetime = param.kind
&& let Some(&original) = seen_lifetimes.get(&ident)
{
diagnostics::signal_lifetime_shadowing(self.r.session, original, param.ident);
// Record lifetime res, so lowering knows there is something fishy.
self.record_lifetime_res(param.id, LifetimeRes::Error);
continue;
}
match seen_bindings.entry(ident) {
Entry::Occupied(entry) => {
let span = *entry.get();
let err = ResolutionError::NameAlreadyUsedInParameterList(ident.name, span);
self.report_error(param.ident.span, err);
if let GenericParamKind::Lifetime = param.kind {
// Record lifetime res, so lowering knows there is something fishy.
self.record_lifetime_res(param.id, LifetimeRes::Error);
continue;
}
Entry::Vacant(entry) => {
entry.insert(true);
}
}
} else {
match seen_bindings.entry(ident) {
Entry::Occupied(entry) => {
let span = *entry.get();
let err = ResolutionError::NameAlreadyUsedInParameterList(ident.name, span);
self.report_error(param.ident.span, err);
}
Entry::Vacant(entry) => {
entry.insert(param.ident.span);
}
Entry::Vacant(entry) => {
entry.insert(param.ident.span);
}
}