diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs index 9483439ae4e8f..dc3ef9952f05a 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -571,17 +571,29 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { // We list scopes outwards, this causes us to see lifetime parameters in reverse // declaration order. In order to make it consistent with what `generics_of` might // give, we will reverse the IndexMap after early captures. + let mut late_depth = 0; let mut scope = self.scope; + let mut crossed_late_boundary = None; let mut opaque_capture_scopes = vec![(opaque.def_id, &captures)]; loop { match *scope { - Scope::Binder { ref bound_vars, s, .. } => { + Scope::Binder { ref bound_vars, scope_type, s, .. } => { for (&original_lifetime, &def) in bound_vars.iter().rev() { + if let ResolvedArg::LateBound(..) = def + && crossed_late_boundary.is_some() + { + continue; + } if let DefKind::LifetimeParam = self.tcx.def_kind(original_lifetime) { + let def = def.shifted(late_depth); let ident = lifetime_ident(original_lifetime); self.remap_opaque_captures(&opaque_capture_scopes, def, ident); } } + match scope_type { + BinderScopeType::Normal => late_depth += 1, + BinderScopeType::Concatenating => {} + } scope = s; } @@ -602,6 +614,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { Scope::Opaque { captures, def_id, s } => { opaque_capture_scopes.push((def_id, captures)); + late_depth = 0; scope = s; } @@ -611,8 +624,12 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { Scope::ObjectLifetimeDefault { s, .. } | Scope::Supertrait { s, .. } - | Scope::TraitRefBoundary { s, .. } - | Scope::LateBoundary { s, .. } => { + | Scope::TraitRefBoundary { s, .. } => { + scope = s; + } + + Scope::LateBoundary { s, what, .. } => { + crossed_late_boundary = Some(what); scope = s; } } diff --git a/tests/ui/impl-trait/in-trait/late-bound-in-object-assocty.rs b/tests/ui/impl-trait/in-trait/late-bound-in-object-assocty.rs new file mode 100644 index 0000000000000..83466535e13c6 --- /dev/null +++ b/tests/ui/impl-trait/in-trait/late-bound-in-object-assocty.rs @@ -0,0 +1,13 @@ +// Test for issue #132429 +//@compile-flags: -Zunstable-options --edition=2024 +//@check-pass + +use std::future::Future; + +trait Test { + fn foo<'a>(&'a self) -> Box>> { + Box::new(async { [] }) + } +} + +fn main() {}