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This commit is contained in:
Esteban Küber 2024-01-04 00:12:37 +00:00
parent 7f795a5221
commit 2474b3708a
1 changed files with 19 additions and 20 deletions
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39
compiler/rustc_hir_typeck/src/method/suggest.rs
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@ -2339,7 +2339,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
Option<ty::Predicate<'tcx>>,
Option<ObligationCause<'tcx>>,
)],
) -> Vec<(String, Span, String)> {
) -> Vec<(String, Span, Symbol)> {
let mut derives = Vec::<(String, Span, Symbol)>::new();
let mut traits = Vec::new();
for (pred, _, _) in unsatisfied_predicates {
@ -2388,21 +2388,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
traits.sort();
traits.dedup();
derives.sort();
derives.dedup();
let mut derives_grouped = Vec::<(String, Span, String)>::new();
for (self_name, self_span, trait_name) in derives.into_iter() {
if let Some((last_self_name, _, ref mut last_trait_names)) = derives_grouped.last_mut()
{
if last_self_name == &self_name {
last_trait_names.push_str(format!(", {trait_name}").as_str());
continue;
}
}
derives_grouped.push((self_name, self_span, trait_name.to_string()));
}
let len = traits.len();
if len > 0 {
let span =
@ -2425,10 +2410,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
);
}
derives_grouped
derives
}
pub fn suggest_derive(
pub(crate) fn suggest_derive(
&self,
err: &mut Diagnostic,
unsatisfied_predicates: &[(
@ -2437,8 +2422,22 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
Option<ObligationCause<'tcx>>,
)],
) {
let derives_grouped =
self.note_predicate_source_and_get_derives(err, unsatisfied_predicates);
let mut derives = self.note_predicate_source_and_get_derives(err, unsatisfied_predicates);
derives.sort();
derives.dedup();
let mut derives_grouped = Vec::<(String, Span, String)>::new();
for (self_name, self_span, trait_name) in derives.into_iter() {
if let Some((last_self_name, _, ref mut last_trait_names)) = derives_grouped.last_mut()
{
if last_self_name == &self_name {
last_trait_names.push_str(format!(", {trait_name}").as_str());
continue;
}
}
derives_grouped.push((self_name, self_span, trait_name.to_string()));
}
for (self_name, self_span, traits) in &derives_grouped {
err.span_suggestion_verbose(
self_span.shrink_to_lo(),