From 246f239d9f40f633160f0c18f87a20922d4e77bb Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:06:37 +0200 Subject: Merging debian version 1.65.0+dfsg1-2. Signed-off-by: Daniel Baumann --- .../src/traits/select/confirmation.rs | 56 ++++++++++++---------- 1 file changed, 32 insertions(+), 24 deletions(-) (limited to 'compiler/rustc_trait_selection/src/traits/select/confirmation.rs') diff --git a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs index 2a1099fc8..d1deef784 100644 --- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs +++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs @@ -126,6 +126,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let data = self.confirm_const_destruct_candidate(obligation, def_id)?; ImplSource::ConstDestruct(data) } + + TupleCandidate => ImplSource::Tuple, }; if !obligation.predicate.is_const_if_const() { @@ -279,29 +281,17 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let predicate = obligation.predicate; let type_at = |i| predicate.map_bound(|p| p.trait_ref.substs.type_at(i)); - let bool_at = |i| { - predicate - .skip_binder() - .trait_ref - .substs - .const_at(i) - .try_eval_bool(self.tcx(), obligation.param_env) - .unwrap_or(true) - }; + let const_at = |i| predicate.skip_binder().trait_ref.substs.const_at(i); let src_and_dst = predicate.map_bound(|p| rustc_transmute::Types { - src: p.trait_ref.substs.type_at(1), dst: p.trait_ref.substs.type_at(0), + src: p.trait_ref.substs.type_at(1), }); let scope = type_at(2).skip_binder(); - let assume = rustc_transmute::Assume { - alignment: bool_at(3), - lifetimes: bool_at(4), - validity: bool_at(5), - visibility: bool_at(6), - }; + let assume = + rustc_transmute::Assume::from_const(self.infcx.tcx, obligation.param_env, const_at(3)); let cause = obligation.cause.clone(); @@ -794,7 +784,9 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let upcast_trait_ref; match (source.kind(), target.kind()) { // TraitA+Kx+'a -> TraitB+Ky+'b (trait upcasting coercion). - (&ty::Dynamic(ref data_a, r_a), &ty::Dynamic(ref data_b, r_b)) => { + (&ty::Dynamic(ref data_a, r_a, repr_a), &ty::Dynamic(ref data_b, r_b, repr_b)) + if repr_a == repr_b => + { // See `assemble_candidates_for_unsizing` for more info. // We already checked the compatibility of auto traits within `assemble_candidates_for_unsizing`. let principal_a = data_a.principal().unwrap(); @@ -820,7 +812,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { .map(ty::Binder::dummy), ); let existential_predicates = tcx.mk_poly_existential_predicates(iter); - let source_trait = tcx.mk_dynamic(existential_predicates, r_b); + let source_trait = tcx.mk_dynamic(existential_predicates, r_b, repr_b); // Require that the traits involved in this upcast are **equal**; // only the **lifetime bound** is changed. @@ -898,7 +890,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let mut nested = vec![]; match (source.kind(), target.kind()) { // Trait+Kx+'a -> Trait+Ky+'b (auto traits and lifetime subtyping). - (&ty::Dynamic(ref data_a, r_a), &ty::Dynamic(ref data_b, r_b)) => { + (&ty::Dynamic(ref data_a, r_a, ty::Dyn), &ty::Dynamic(ref data_b, r_b, ty::Dyn)) => { // See `assemble_candidates_for_unsizing` for more info. // We already checked the compatibility of auto traits within `assemble_candidates_for_unsizing`. let iter = data_a @@ -917,7 +909,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { .map(ty::Binder::dummy), ); let existential_predicates = tcx.mk_poly_existential_predicates(iter); - let source_trait = tcx.mk_dynamic(existential_predicates, r_b); + let source_trait = tcx.mk_dynamic(existential_predicates, r_b, ty::Dyn); // Require that the traits involved in this upcast are **equal**; // only the **lifetime bound** is changed. @@ -944,7 +936,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } // `T` -> `Trait` - (_, &ty::Dynamic(ref data, r)) => { + (_, &ty::Dynamic(ref data, r, ty::Dyn)) => { let mut object_dids = data.auto_traits().chain(data.principal_def_id()); if let Some(did) = object_dids.find(|did| !tcx.is_object_safe(*did)) { return Err(TraitNotObjectSafe(did)); @@ -1047,9 +1039,25 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { return Err(Unimplemented); } - // Extract `TailField` and `TailField` from `Struct` and `Struct`. - let source_tail = tail_field_ty.subst(tcx, substs_a); - let target_tail = tail_field_ty.subst(tcx, substs_b); + // Extract `TailField` and `TailField` from `Struct` and `Struct`, + // normalizing in the process, since `type_of` returns something directly from + // astconv (which means it's un-normalized). + let source_tail = normalize_with_depth_to( + self, + obligation.param_env, + obligation.cause.clone(), + obligation.recursion_depth + 1, + tail_field_ty.subst(tcx, substs_a), + &mut nested, + ); + let target_tail = normalize_with_depth_to( + self, + obligation.param_env, + obligation.cause.clone(), + obligation.recursion_depth + 1, + tail_field_ty.subst(tcx, substs_b), + &mut nested, + ); // Check that the source struct with the target's // unsizing parameters is equal to the target. -- cgit v1.2.3