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Use Symbol for dup check in #[rustc_must_implement_one_of]

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This commit is contained in:
Maybe Waffle 2022-01-15 02:04:58 +03:00
parent f9174e1d80
commit 28edd7ac09
1 changed files with 3 additions and 8 deletions
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11
compiler/rustc_typeck/src/collect.rs
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@ -1306,18 +1306,13 @@ fn trait_def(tcx: TyCtxt<'_>, def_id: DefId) -> ty::TraitDef {
})
// Check for duplicates
.and_then(|list| {
let mut set: FxHashSet<&Ident> = FxHashSet::default();
let mut set: FxHashMap<Symbol, Span> = FxHashMap::default();
let mut no_dups = true;
for ident in &*list {
if let Some(dup) = set.replace(ident) {
let dup2 = set.get(&dup).copied().unwrap(); // We've just inserted it
if let Some(dup) = set.insert(ident.name, ident.span) {
tcx.sess
.struct_span_err(
vec![dup.span, dup2.span],
"Functions names are duplicated",
)
.struct_span_err(vec![dup, ident.span], "Functions names are duplicated")
.note(
"All `#[rustc_must_implement_one_of]` arguments \
must be unique",