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Use all_impls instead of handrolling it #156148

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Merged
rust-bors merged 1 commit into from
May 6, 2026
+11 −20
Merged

Use all_impls instead of handrolling it #156148

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31 changes: 11 additions & 20 deletions compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3642,27 +3642,18 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
already implement it",
with_no_trimmed_paths!(tcx.def_path_str(def_id)),
));
let impls_of = tcx.trait_impls_of(def_id);
let impls = impls_of
.non_blanket_impls()
.values()
.flatten()
.chain(impls_of.blanket_impls().iter())
let mut types = tcx
.all_impls(def_id)
.map(|t| {
with_no_trimmed_paths!(format!(
" {}",
tcx.type_of(t).instantiate_identity().skip_norm_wip(),
))
})
.collect::<Vec<_>>();
if !impls.is_empty() {
let len = impls.len();
let mut types = impls
.iter()
.map(|&&t| {
with_no_trimmed_paths!(format!(
" {}",
tcx.type_of(t)
.instantiate_identity()
.skip_norm_wip(),
))
})
.collect::<Vec<_>>();
let post = if types.len() > 9 {
if !types.is_empty() {
let len = types.len();
let post = if len > 9 {
types.truncate(8);
format!("\nand {} others", len - 8)
} else {
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