bjoernager/rust
bjoernager/rust
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This commit is contained in:
Esteban Küber 2024-01-29 23:33:02 +00:00
parent 7df4a09fc4
commit fc964fb439
2 changed files with 19 additions and 34 deletions
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25
compiler/rustc_hir_analysis/src/astconv/errors.rs
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@ -6,6 +6,7 @@ use crate::errors::{
use crate::fluent_generated as fluent;
use crate::traits::error_reporting::report_object_safety_error;
use rustc_data_structures::fx::{FxHashMap, FxIndexMap, FxIndexSet};
use rustc_data_structures::sorted_map::SortedMap;
use rustc_data_structures::unord::UnordMap;
use rustc_errors::{pluralize, struct_span_code_err, Applicability, Diagnostic, ErrorGuaranteed};
use rustc_hir as hir;
@ -461,14 +462,14 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
return err.emit();
}
let mut bound_spans: FxHashMap<Span, Vec<String>> = Default::default();
let mut bound_spans: SortedMap<Span, Vec<String>> = Default::default();
let mut bound_span_label = |self_ty: Ty<'_>, obligation: &str, quiet: &str| {
let msg = format!("`{}`", if obligation.len() > 50 { quiet } else { obligation });
match &self_ty.kind() {
// Point at the type that couldn't satisfy the bound.
ty::Adt(def, _) => {
bound_spans.entry(tcx.def_span(def.did())).or_default().push(msg)
bound_spans.get_mut_or_insert_default(tcx.def_span(def.did())).push(msg)
}
// Point at the trait object that couldn't satisfy the bound.
ty::Dynamic(preds, _, _) => {
@ -476,8 +477,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
match pred.skip_binder() {
ty::ExistentialPredicate::Trait(tr) => {
bound_spans
.entry(tcx.def_span(tr.def_id))
.or_default()
.get_mut_or_insert_default(tcx.def_span(tr.def_id))
.push(msg.clone());
}
ty::ExistentialPredicate::Projection(_)
@ -488,8 +488,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
// Point at the closure that couldn't satisfy the bound.
ty::Closure(def_id, _) => {
bound_spans
.entry(tcx.def_span(*def_id))
.or_default()
.get_mut_or_insert_default(tcx.def_span(*def_id))
.push(format!("`{quiet}`"));
}
_ => {}
@ -559,21 +558,15 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
format!("associated type cannot be referenced on `{self_ty}` due to unsatisfied trait bounds")
);
let mut bound_spans: Vec<(Span, Vec<String>)> = bound_spans
.into_iter()
.map(|(span, mut bounds)| {
bounds.sort();
bounds.dedup();
(span, bounds)
})
.collect();
bound_spans.sort_by_key(|(span, _)| *span);
for (span, bounds) in bound_spans {
for (span, mut bounds) in bound_spans {
if !tcx.sess.source_map().is_span_accessible(span) {
continue;
}
bounds.sort();
bounds.dedup();
let msg = match &bounds[..] {
[bound] => format!("doesn't satisfy {bound}"),
bounds if bounds.len() > 4 => format!("doesn't satisfy {} bounds", bounds.len()),
[bounds @ .., last] => format!("doesn't satisfy {} or {last}", bounds.join(", ")),
[] => unreachable!(),
};