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Require TAITs to be mentioned in the signatures of functions that register hidden types for them

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Oli Scherer 2023-06-15 09:41:14 +00:00
parent 921f669749
commit 4c99872efe
70 changed files with 796 additions and 184 deletions
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2
compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs
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@ -257,7 +257,7 @@ impl<T> Trait<T> for X {
);
}
}
(ty::Alias(ty::Opaque, alias), _) | (_, ty::Alias(ty::Opaque, alias)) if alias.def_id.is_local() && matches!(tcx.def_kind(body_owner_def_id), DefKind::AssocFn | DefKind::AssocConst) => {
(ty::Alias(ty::Opaque, alias), _) | (_, ty::Alias(ty::Opaque, alias)) if alias.def_id.is_local() && matches!(tcx.def_kind(body_owner_def_id), DefKind::Fn | DefKind::Static(_) | DefKind::Const | DefKind::AssocFn | DefKind::AssocConst) => {
if tcx.is_type_alias_impl_trait(alias.def_id) {
if !tcx.opaque_types_defined_by(body_owner_def_id.expect_local()).contains(&alias.def_id.expect_local()) {
let sp = tcx.def_ident_span(body_owner_def_id).unwrap_or_else(|| tcx.def_span(body_owner_def_id));