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| author | Santiago Pastorino <spastorino@gmail.com> | 2022-11-24 18:14:58 -0300 |
|---|---|---|
| committer | Santiago Pastorino <spastorino@gmail.com> | 2022-11-25 00:04:54 -0300 |
| commit | 974e2837bb643a1213caeea4025f2f5681bd5f3e (patch) | |
| tree | ef25aad9b89c8cb4f8f618f153c04f3dd2aa8b87 | |
| parent | 42cc8e8f4e5fe3864a9aca4f342ee2aff2ba696a (diff) | |
| download | rust-974e2837bb643a1213caeea4025f2f5681bd5f3e.tar.gz rust-974e2837bb643a1213caeea4025f2f5681bd5f3e.zip | |
Introduce PredicateKind::Clause
75 files changed, 568 insertions, 407 deletions
diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 5c645c66cd7..a53940070f7 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -666,15 +666,17 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let tcx = self.infcx.tcx; // Find out if the predicates show that the type is a Fn or FnMut - let find_fn_kind_from_did = - |predicates: ty::EarlyBinder<&[(ty::Predicate<'tcx>, Span)]>, substs| { - predicates.0.iter().find_map(|(pred, _)| { + let find_fn_kind_from_did = |predicates: ty::EarlyBinder< + &[(ty::Predicate<'tcx>, Span)], + >, + substs| { + predicates.0.iter().find_map(|(pred, _)| { let pred = if let Some(substs) = substs { predicates.rebind(*pred).subst(tcx, substs).kind().skip_binder() } else { pred.kind().skip_binder() }; - if let ty::PredicateKind::Trait(pred) = pred && pred.self_ty() == ty { + if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = pred && pred.self_ty() == ty { if Some(pred.def_id()) == tcx.lang_items().fn_trait() { return Some(hir::Mutability::Not); } else if Some(pred.def_id()) == tcx.lang_items().fn_mut_trait() { @@ -683,7 +685,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { } None }) - }; + }; // If the type is opaque/param/closure, and it is Fn or FnMut, let's suggest (mutably) // borrowing the type, since `&mut F: FnMut` iff `F: FnMut` and similarly for `Fn`. @@ -784,13 +786,15 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let predicates: Result<Vec<_>, _> = errors .into_iter() .map(|err| match err.obligation.predicate.kind().skip_binder() { - PredicateKind::Trait(predicate) => match predicate.self_ty().kind() { - ty::Param(param_ty) => Ok(( - generics.type_param(param_ty, tcx), - predicate.trait_ref.print_only_trait_path().to_string(), - )), - _ => Err(()), - }, + PredicateKind::Clause(ty::Clause::Trait(predicate)) => { + match predicate.self_ty().kind() { + ty::Param(param_ty) => Ok(( + generics.type_param(param_ty, tcx), + predicate.trait_ref.print_only_trait_path().to_string(), + )), + _ => Err(()), + } + } _ => Err(()), }) .collect(); diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index f9741bacd17..0adaabd0dbf 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -959,8 +959,8 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { { predicates.iter().any(|pred| { match pred.kind().skip_binder() { - ty::PredicateKind::Trait(data) if data.self_ty() == ty => {} - ty::PredicateKind::Projection(data) if data.projection_ty.self_ty() == ty => {} + ty::PredicateKind::Clause(ty::Clause::Trait(data)) if data.self_ty() == ty => {} + ty::PredicateKind::Clause(ty::Clause::Projection(data)) if data.projection_ty.self_ty() == ty => {} _ => return false, } tcx.any_free_region_meets(pred, |r| { diff --git a/compiler/rustc_borrowck/src/type_check/canonical.rs b/compiler/rustc_borrowck/src/type_check/canonical.rs index d0cf8622a44..1aad6738bba 100644 --- a/compiler/rustc_borrowck/src/type_check/canonical.rs +++ b/compiler/rustc_borrowck/src/type_check/canonical.rs @@ -88,11 +88,11 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { category: ConstraintCategory<'tcx>, ) { self.prove_predicate( - ty::Binder::dummy(ty::PredicateKind::Trait(ty::TraitPredicate { + ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { trait_ref, constness: ty::BoundConstness::NotConst, polarity: ty::ImplPolarity::Positive, - })), + }))), locations, category, ); diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index b268eac97d0..18e3cbbb86a 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -2013,8 +2013,8 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { ); let outlives_predicate = - tcx.mk_predicate(Binder::dummy(ty::PredicateKind::TypeOutlives( - ty::OutlivesPredicate(self_ty, *region), + tcx.mk_predicate(Binder::dummy(ty::PredicateKind::Clause( + ty::Clause::TypeOutlives(ty::OutlivesPredicate(self_ty, *region)), ))); self.prove_predicate( outlives_predicate, diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index e744ed2dcc5..bc654c24b2f 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -1378,7 +1378,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { let bound_predicate = obligation.predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { let pred = bound_predicate.rebind(pred); associated_types.entry(span).or_default().extend( tcx.associated_items(pred.def_id()) @@ -1387,7 +1387,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { .map(|item| item.def_id), ); } - ty::PredicateKind::Projection(pred) => { + ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => { let pred = bound_predicate.rebind(pred); // A `Self` within the original bound will be substituted with a // `trait_object_dummy_self`, so check for that. diff --git a/compiler/rustc_hir_analysis/src/check/dropck.rs b/compiler/rustc_hir_analysis/src/check/dropck.rs index e0b465bab16..d04d8ca2c32 100644 --- a/compiler/rustc_hir_analysis/src/check/dropck.rs +++ b/compiler/rustc_hir_analysis/src/check/dropck.rs @@ -183,19 +183,27 @@ fn ensure_drop_predicates_are_implied_by_item_defn<'tcx>( let predicate = predicate.kind(); let p = p.kind(); match (predicate.skip_binder(), p.skip_binder()) { - (ty::PredicateKind::Trait(a), ty::PredicateKind::Trait(b)) => { - relator.relate(predicate.rebind(a), p.rebind(b)).is_ok() - } - (ty::PredicateKind::Projection(a), ty::PredicateKind::Projection(b)) => { - relator.relate(predicate.rebind(a), p.rebind(b)).is_ok() - } + ( + ty::PredicateKind::Clause(ty::Clause::Trait(a)), + ty::PredicateKind::Clause(ty::Clause::Trait(b)), + ) => relator.relate(predicate.rebind(a), p.rebind(b)).is_ok(), + ( + ty::PredicateKind::Clause(ty::Clause::Projection(a)), + ty::PredicateKind::Clause(ty::Clause::Projection(b)), + ) => relator.relate(predicate.rebind(a), p.rebind(b)).is_ok(), ( ty::PredicateKind::ConstEvaluatable(a), ty::PredicateKind::ConstEvaluatable(b), ) => relator.relate(predicate.rebind(a), predicate.rebind(b)).is_ok(), ( - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty_a, lt_a)), - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty_b, lt_b)), + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + ty_a, + lt_a, + ))), + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + ty_b, + lt_b, + ))), ) => { relator.relate(predicate.rebind(ty_a), p.rebind(ty_b)).is_ok() && relator.relate(predicate.rebind(lt_a), p.rebind(lt_b)).is_ok() diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs index 2fdfdd77256..29255472a25 100644 --- a/compiler/rustc_hir_analysis/src/check/mod.rs +++ b/compiler/rustc_hir_analysis/src/check/mod.rs @@ -309,7 +309,7 @@ fn bounds_from_generic_predicates<'tcx>( debug!("predicate {:?}", predicate); let bound_predicate = predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(trait_predicate) => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => { let entry = types.entry(trait_predicate.self_ty()).or_default(); let def_id = trait_predicate.def_id(); if Some(def_id) != tcx.lang_items().sized_trait() { @@ -318,7 +318,7 @@ fn bounds_from_generic_predicates<'tcx>( entry.push(trait_predicate.def_id()); } } - ty::PredicateKind::Projection(projection_pred) => { + ty::PredicateKind::Clause(ty::Clause::Projection(projection_pred)) => { projections.push(bound_predicate.rebind(projection_pred)); } _ => {} diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index d23c41ed690..8171a2ab270 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -462,12 +462,16 @@ fn check_gat_where_clauses(tcx: TyCtxt<'_>, associated_items: &[hir::TraitItemRe let mut unsatisfied_bounds: Vec<_> = required_bounds .into_iter() .filter(|clause| match clause.kind().skip_binder() { - ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate(a, b)) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate( + a, + b, + ))) => { !region_known_to_outlive(tcx, gat_hir, param_env, &FxIndexSet::default(), a, b) } - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(a, b)) => { - !ty_known_to_outlive(tcx, gat_hir, param_env, &FxIndexSet::default(), a, b) - } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + a, + b, + ))) => !ty_known_to_outlive(tcx, gat_hir, param_env, &FxIndexSet::default(), a, b), _ => bug!("Unexpected PredicateKind"), }) .map(|clause| clause.to_string()) @@ -599,8 +603,9 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<'tcx>>( })); // The predicate we expect to see. (In our example, // `Self: 'me`.) - let clause = - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty_param, region_param)); + let clause = ty::PredicateKind::Clause(ty::Clause::TypeOutlives( + ty::OutlivesPredicate(ty_param, region_param), + )); let clause = tcx.mk_predicate(ty::Binder::dummy(clause)); bounds.insert(clause); } @@ -636,9 +641,8 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<'tcx>>( name: region_b_param.name, })); // The predicate we expect to see. - let clause = ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate( - region_a_param, - region_b_param, + let clause = ty::PredicateKind::Clause(ty::Clause::RegionOutlives( + ty::OutlivesPredicate(region_a_param, region_b_param), )); let clause = tcx.mk_predicate(ty::Binder::dummy(clause)); bounds.insert(clause); diff --git a/compiler/rustc_hir_analysis/src/coherence/builtin.rs b/compiler/rustc_hir_analysis/src/coherence/builtin.rs index 11661215ae1..d6a5736bbf4 100644 --- a/compiler/rustc_hir_analysis/src/coherence/builtin.rs +++ b/compiler/rustc_hir_analysis/src/coherence/builtin.rs @@ -128,11 +128,11 @@ fn visit_implementation_of_copy(tcx: TyCtxt<'_>, impl_did: LocalDefId) { .or_default() .push(error.obligation.cause.span); } - if let ty::PredicateKind::Trait(ty::TraitPredicate { + if let ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { trait_ref, polarity: ty::ImplPolarity::Positive, .. - }) = error_predicate.kind().skip_binder() + })) = error_predicate.kind().skip_binder() { let ty = trait_ref.self_ty(); if let ty::Param(_) = ty.kind() { diff --git a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs index 0d34a8bfee3..0542e2c8f50 100644 --- a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs +++ b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs @@ -35,9 +35,11 @@ fn associated_type_bounds<'tcx>( let bounds_from_parent = trait_predicates.predicates.iter().copied().filter(|(pred, _)| { match pred.kind().skip_binder() { - ty::PredicateKind::Trait(tr) => tr.self_ty() == item_ty, - ty::PredicateKind::Projection(proj) => proj.projection_ty.self_ty() == item_ty, - ty::PredicateKind::TypeOutlives(outlives) => outlives.0 == item_ty, + ty::PredicateKind::Clause(ty::Clause::Trait(tr)) => tr.self_ty() == item_ty, + ty::PredicateKind::Clause(ty::Clause::Projection(proj)) => { + proj.projection_ty.self_ty() == item_ty + } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(outlives)) => outlives.0 == item_ty, _ => false, } }); diff --git a/compiler/rustc_hir_analysis/src/collect/lifetimes.rs b/compiler/rustc_hir_analysis/src/collect/lifetimes.rs index ce5cde5b883..da1c04f3f7b 100644 --- a/compiler/rustc_hir_analysis/src/collect/lifetimes.rs +++ b/compiler/rustc_hir_analysis/src/collect/lifetimes.rs @@ -1558,7 +1558,7 @@ impl<'a, 'tcx> LifetimeContext<'a, 'tcx> { let obligations = predicates.predicates.iter().filter_map(|&(pred, _)| { let bound_predicate = pred.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(data) => { + ty::PredicateKind::Clause(ty::Clause::Trait(data)) => { // The order here needs to match what we would get from `subst_supertrait` let pred_bound_vars = bound_predicate.bound_vars(); let mut all_bound_vars = bound_vars.clone(); diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs index c3f1bb457f7..9417a2620d1 100644 --- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs @@ -233,8 +233,8 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: DefId) -> ty::GenericP } _ => bug!(), }; - let pred = ty::Binder::dummy(ty::PredicateKind::RegionOutlives( - ty::OutlivesPredicate(r1, r2), + let pred = ty::Binder::dummy(ty::PredicateKind::Clause( + ty::Clause::RegionOutlives(ty::OutlivesPredicate(r1, r2)), )) .to_predicate(icx.tcx); @@ -299,17 +299,15 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: DefId) -> ty::GenericP name: duplicate.name.ident().name, })); predicates.push(( - ty::Binder::dummy(ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate( - orig_region, - dup_region, + ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::RegionOutlives( + ty::OutlivesPredicate(orig_region, dup_region), ))) .to_predicate(icx.tcx), duplicate.span, )); predicates.push(( - ty::Binder::dummy(ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate( - dup_region, - orig_region, + ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::RegionOutlives( + ty::OutlivesPredicate(dup_region, orig_region), ))) .to_predicate(icx.tcx), duplicate.span, @@ -426,11 +424,13 @@ pub(super) fn explicit_predicates_of<'tcx>( .iter() .copied() .filter(|(pred, _)| match pred.kind().skip_binder() { - ty::PredicateKind::Trait(tr) => !is_assoc_item_ty(tr.self_ty()), - ty::PredicateKind::Projection(proj) => { + ty::PredicateKind::Clause(ty::Clause::Trait(tr)) => !is_assoc_item_ty(tr.self_ty()), + ty::PredicateKind::Clause(ty::Clause::Projection(proj)) => { !is_assoc_item_ty(proj.projection_ty.self_ty()) } - ty::PredicateKind::TypeOutlives(outlives) => !is_assoc_item_ty(outlives.0), + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(outlives)) => { + !is_assoc_item_ty(outlives.0) + } _ => true, }) .collect(); @@ -566,7 +566,9 @@ pub(super) fn super_predicates_that_define_assoc_type( // which will, in turn, reach indirect supertraits. for &(pred, span) in superbounds { debug!("superbound: {:?}", pred); - if let ty::PredicateKind::Trait(bound) = pred.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Trait(bound)) = + pred.kind().skip_binder() + { tcx.at(span).super_predicates_of(bound.def_id()); } } @@ -666,7 +668,7 @@ pub(super) fn type_param_predicates( ) .into_iter() .filter(|(predicate, _)| match predicate.kind().skip_binder() { - ty::PredicateKind::Trait(data) => data.self_ty().is_param(index), + ty::PredicateKind::Clause(ty::Clause::Trait(data)) => data.self_ty().is_param(index), _ => false, }), ); diff --git a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs index 213b89fc784..b4057df7896 100644 --- a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs +++ b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs @@ -187,7 +187,8 @@ pub fn setup_constraining_predicates<'tcx>( for j in i..predicates.len() { // Note that we don't have to care about binders here, // as the impl trait ref never contains any late-bound regions. - if let ty::PredicateKind::Projection(projection) = predicates[j].0.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Projection(projection)) = + predicates[j].0.kind().skip_binder() { // Special case: watch out for some kind of sneaky attempt // to project out an associated type defined by this very diff --git a/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs b/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs index bae43138b4d..fd8e8ed7ba6 100644 --- a/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs +++ b/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs @@ -214,7 +214,9 @@ fn unconstrained_parent_impl_substs<'tcx>( // the functions in `cgp` add the constrained parameters to a list of // unconstrained parameters. for (predicate, _) in impl_generic_predicates.predicates.iter() { - if let ty::PredicateKind::Projection(proj) = predicate.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = + predicate.kind().skip_binder() + { let projection_ty = proj.projection_ty; let projected_ty = proj.term; @@ -429,7 +431,10 @@ fn trait_predicates_eq<'tcx>( let pred1_kind = predicate1.kind().skip_binder(); let pred2_kind = predicate2.kind().skip_binder(); let (trait_pred1, trait_pred2) = match (pred1_kind, pred2_kind) { - (ty::PredicateKind::Trait(pred1), ty::PredicateKind::Trait(pred2)) => (pred1, pred2), + ( + ty::PredicateKind::Clause(ty::Clause::Trait(pred1)), + ty::PredicateKind::Clause(ty::Clause::Trait(pred2)), + ) => (pred1, pred2), // Just use plain syntactic equivalence if either of the predicates aren't // trait predicates or have bound vars. _ => return predicate1 == predicate2, @@ -467,7 +472,11 @@ fn check_specialization_on<'tcx>(tcx: TyCtxt<'tcx>, predicate: ty::Predicate<'tc _ if predicate.is_global() => (), // We allow specializing on explicitly marked traits with no associated // items. - ty::PredicateKind::Trait(ty::TraitPredicate { trait_ref, constness: _, polarity: _ }) => { + ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { + trait_ref, + constness: _, + polarity: _, + })) => { if !matches!( trait_predicate_kind(tcx, predicate), Some(TraitSpecializationKind::Marker) @@ -483,7 +492,10 @@ fn check_specialization_on<'tcx>(tcx: TyCtxt<'tcx>, predicate: ty::Predicate<'tc .emit(); } } - ty::PredicateKind::Projection(ty::ProjectionPredicate { projection_ty, term }) => { + ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate { + projection_ty, + term, + })) => { tcx.sess .struct_span_err( span, @@ -504,12 +516,14 @@ fn trait_predicate_kind<'tcx>( predicate: ty::Predicate<'tcx>, ) -> Option<TraitSpecializationKind> { match predicate.kind().skip_binder() { - ty::PredicateKind::Trait(ty::TraitPredicate { trait_ref, constness: _, polarity: _ }) => { - Some(tcx.trait_def(trait_ref.def_id).specialization_kind) - } - ty::PredicateKind::RegionOutlives(_) - | ty::PredicateKind::TypeOutlives(_) - | ty::PredicateKind::Projection(_) + ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { + trait_ref, + constness: _, + polarity: _, + })) => Some(tcx.trait_def(trait_ref.def_id).specialization_kind), + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(_)) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(_)) + | ty::PredicateKind::Clause(ty::Clause::Projection(_)) | ty::PredicateKind::WellFormed(_) | ty::PredicateKind::Subtype(_) | ty::PredicateKind::Coerce(_) diff --git a/compiler/rustc_hir_analysis/src/outlives/explicit.rs b/compiler/rustc_hir_analysis/src/outlives/explicit.rs index f0381353551..663f1c49db7 100644 --- a/compiler/rustc_hir_analysis/src/outlives/explicit.rs +++ b/compiler/rustc_hir_analysis/src/outlives/explicit.rs @@ -30,28 +30,30 @@ impl<'tcx> ExplicitPredicatesMap<'tcx> { // process predicates and convert to `RequiredPredicates` entry, see below for &(predicate, span) in predicates.predicates { match predicate.kind().skip_binder() { - ty::PredicateKind::TypeOutlives(OutlivesPredicate(ty, reg)) => { - insert_outlives_predicate( - tcx, - ty.into(), - reg, - span, - &mut required_predicates, - ) - } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(OutlivesPredicate( + ty, + reg, + ))) => insert_outlives_predicate( + tcx, + ty.into(), + reg, + span, + &mut required_predicates, + ), - ty::PredicateKind::RegionOutlives(OutlivesPredicate(reg1, reg2)) => { - insert_outlives_predicate( - tcx, - reg1.into(), - reg2, - span, - &mut required_predicates, - ) - } + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(OutlivesPredicate( + reg1, + reg2, + ))) => insert_outlives_predicate( + tcx, + reg1.into(), + reg2, + span, + &mut required_predicates, + ), - ty::PredicateKind::Trait(..) - | ty::PredicateKind::Projection(..) + ty::PredicateKind::Clause(ty::Clause::Trait(..)) + | ty::PredicateKind::Clause(ty::Clause::Projection(..)) | ty::PredicateKind::WellFormed(..) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ClosureKind(..) diff --git a/compiler/rustc_hir_analysis/src/outlives/mod.rs b/compiler/rustc_hir_analysis/src/outlives/mod.rs index ea0c2a20de3..c8f37176836 100644 --- a/compiler/rustc_hir_analysis/src/outlives/mod.rs +++ b/compiler/rustc_hir_analysis/src/outlives/mod.rs @@ -51,8 +51,10 @@ fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: DefId) -> &[(ty::Predicate let mut pred: Vec<String> = predicates .iter() .map(|(out_pred, _)| match out_pred.kind().skip_binder() { - ty::PredicateKind::RegionOutlives(p) => p.to_string(), - ty::PredicateKind::TypeOutlives(p) => p.to_string(), + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(p)) => { + p.to_string() + } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(p)) => p.to_string(), err => bug!("unexpected predicate {:?}", err), }) .collect(); @@ -101,15 +103,17 @@ fn inferred_outlives_crate(tcx: TyCtxt<'_>, (): ()) -> CratePredicatesMap<'_> { |(ty::OutlivesPredicate(kind1, region2), &span)| { match kind1.unpack() { GenericArgKind::Type(ty1) => Some(( - ty::Binder::dummy(ty::PredicateKind::TypeOutlives( + ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::TypeOutlives( ty::OutlivesPredicate(ty1, *region2), - )) + ))) .to_predicate(tcx), span, )), GenericArgKind::Lifetime(region1) => Some(( - ty::Binder::dummy(ty::PredicateKind::RegionOutlives( - ty::OutlivesPredicate(region1, *region2), + ty::Binder::dummy(ty::PredicateKind::Clause( + ty::Clause::RegionOutlives(ty::OutlivesPredicate( + region1, *region2, + )), )) .to_predicate(tcx), span, diff --git a/compiler/rustc_hir_analysis/src/variance/mod.rs b/compiler/rustc_hir_analysis/src/variance/mod.rs index b6137f89cad..9db05eedbde 100644 --- a/compiler/rustc_hir_analysis/src/variance/mod.rs +++ b/compiler/rustc_hir_analysis/src/variance/mod.rs @@ -123,25 +123,28 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc // which thus mentions `'a` and should thus accept hidden types that borrow 'a // instead of requiring an additional `+ 'a`. match pred.kind().skip_binder() { - ty::PredicateKind::Trait(ty::TraitPredicate { + ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { trait_ref: ty::TraitRef { def_id: _, substs }, constness: _, polarity: _, - }) => { + })) => { for subst in &substs[1..] { subst.visit_with(&mut collector); } } - ty::PredicateKind::Projection(ty::ProjectionPredicate { + ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate { projection_ty: ty::ProjectionTy { substs, item_def_id: _ }, term, - }) => { + })) => { for subst in &substs[1..] { subst.visit_with(&mut collector); } term.visit_with(&mut collector); } - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(_, region)) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + _, + region, + ))) => { region.visit_with(&mut collector); } _ => { diff --git a/compiler/rustc_hir_typeck/src/_match.rs b/compiler/rustc_hir_typeck/src/_match.rs index 31432bb6e41..e93e8b0bada 100644 --- a/compiler/rustc_hir_typeck/src/_match.rs +++ b/compiler/rustc_hir_typeck/src/_match.rs @@ -539,17 +539,19 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .subst_iter_copied(self.tcx, substs) { let pred = pred.kind().rebind(match pred.kind().skip_binder() { - ty::PredicateKind::Trait(trait_pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) => { assert_eq!(trait_pred.trait_ref.self_ty(), opaque_ty); - ty::PredicateKind::Trait(trait_pred.with_self_type(self.tcx, ty)) + ty::PredicateKind::Clause(ty::Clause::Trait( + trait_pred.with_self_type(self.tcx, ty), + )) } - ty::PredicateKind::Projection(mut proj_pred) => { + ty::PredicateKind::Clause(ty::Clause::Projection(mut proj_pred)) => { assert_eq!(proj_pred.projection_ty.self_ty(), opaque_ty); proj_pred.projection_ty.substs = self.tcx.mk_substs_trait( ty, proj_pred.projection_ty.substs.iter().skip(1), ); - ty::PredicateKind::Projection(proj_pred) + ty::PredicateKind::Clause(ty::Clause::Projection(proj_pred)) } _ => continue, }); diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index 6cf9e23b40b..e2fefd2724f 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -212,7 +212,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Given a Projection predicate, we can potentially infer // the complete signature. if expected_sig.is_none() - && let ty::PredicateKind::Projection(proj_predicate) = bound_predicate.skip_binder() + && let ty::PredicateKind::Clause(ty::Clause::Projection(proj_predicate)) = bound_predicate.skip_binder() { expected_sig = self.normalize_associated_types_in( obligation.cause.span, @@ -228,10 +228,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // like `F : Fn<A>`. Note that due to subtyping we could encounter // many viable options, so pick the most restrictive. let trait_def_id = match bound_predicate.skip_binder() { - ty::PredicateKind::Projection(data) => { + ty::PredicateKind::Clause(ty::Clause::Projection(data)) => { Some(data.projection_ty.trait_def_id(self.tcx)) } - ty::PredicateKind::Trait(data) => Some(data.def_id()), + ty::PredicateKind::Clause(ty::Clause::Trait(data)) => Some(data.def_id()), _ => None, }; if let Some(closure_kind) = @@ -658,7 +658,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // where R is the return type we are expecting. This type `T` // will be our output. let bound_predicate = predicate.kind(); - if let ty::PredicateKind::Projection(proj_predicate) = bound_predicate.skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Projection(proj_predicate)) = + bound_predicate.skip_binder() + { self.deduce_future_output_from_projection( span, bound_predicate.rebind(proj_predicate), diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index c314694ead4..b6e37d9ec8e 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -644,7 +644,9 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { debug!("coerce_unsized resolve step: {:?}", obligation); let bound_predicate = obligation.predicate.kind(); let trait_pred = match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(trait_pred) if traits.contains(&trait_pred.def_id()) => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) + if traits.contains(&trait_pred.def_id()) => + { if unsize_did == trait_pred.def_id() { let self_ty = trait_pred.self_ty(); let unsize_ty = trait_pred.trait_ref.substs[1].expect_ty(); @@ -778,8 +780,8 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> { self.tcx, self.cause.clone(), self.param_env, - ty::Binder::dummy(ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate( - a, b_region, + ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::TypeOutlives( + ty::OutlivesPredicate(a, b_region), ))), ), ]) diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index 91f65b8c0f2..9299527ce17 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -2824,7 +2824,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ) { for error in errors { match error.obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(predicate) + ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) if self.tcx.is_diagnostic_item(sym::SliceIndex, predicate.trait_ref.def_id) => { } _ => continue, diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index c7bfe99aa9a..994fe48c9fe 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -669,7 +669,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.fulfillment_cx.borrow().pending_obligations().into_iter().filter_map( move |obligation| match &obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Projection(data) + ty::PredicateKind::Clause(ty::Clause::Projection(data)) if self.self_type_matches_expected_vid( data.projection_ty.self_ty(), ty_var_root, @@ -677,18 +677,18 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { { Some(obligation) } - ty::PredicateKind::Trait(data) + ty::PredicateKind::Clause(ty::Clause::Trait(data)) if self.self_type_matches_expected_vid(data.self_ty(), ty_var_root) => { Some(obligation) } - ty::PredicateKind::Trait(..) - | ty::PredicateKind::Projection(..) + ty::PredicateKind::Clause(ty::Clause::Trait(..)) + | ty::PredicateKind::Clause(ty::Clause::Projection(..)) | ty::PredicateKind::Subtype(..) | ty::PredicateKind::Coerce(..) - | ty::PredicateKind::RegionOutlives(..) - | ty::PredicateKind::TypeOutlives(..) + | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) | ty::PredicateKind::WellFormed(..) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ConstEvaluatable(..) @@ -712,7 +712,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let sized_did = self.tcx.lang_items().sized_trait(); self.obligations_for_self_ty(self_ty).any(|obligation| { match obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(data) => Some(data.def_id()) == sized_did, + ty::PredicateKind::Clause(ty::Clause::Trait(data)) => { + Some(data.def_id()) == sized_did + } _ => false, } }) diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 0d47df1b1bf..ecf6f458ca3 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -1740,8 +1740,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let generics = self.tcx.generics_of(def_id); let predicate_substs = match unsubstituted_pred.kind().skip_binder() { - ty::PredicateKind::Trait(pred) => pred.trait_ref.substs, - ty::PredicateKind::Projection(pred) => pred.projection_ty.substs, + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => pred.trait_ref.substs, + ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => pred.projection_ty.substs, _ => ty::List::empty(), }; @@ -2113,7 +2113,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { for (predicate, span) in std::iter::zip(instantiated.predicates, instantiated.spans) { - if let ty::PredicateKind::Trait(pred) = predicate.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = predicate.kind().skip_binder() && pred.self_ty().peel_refs() == callee_ty && ty::ClosureKind::from_def_id(self.tcx, pred.def_id()).is_some() { diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs index 177d521d280..ed5f7f31764 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs @@ -201,7 +201,9 @@ impl<'a, 'tcx> AstConv<'tcx> for FnCtxt<'a, 'tcx> { predicates: tcx.arena.alloc_from_iter( self.param_env.caller_bounds().iter().filter_map(|predicate| { match predicate.kind().skip_binder() { - ty::PredicateKind::Trait(data) if data.self_ty().is_param(index) => { + ty::PredicateKind::Clause(ty::Clause::Trait(data)) + if data.self_ty().is_param(index) => + { // HACK(eddyb) should get the original `Span`. let span = tcx.def_span(def_id); Some((predicate, span)) diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 625cd184223..c0aff8f240f 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -173,7 +173,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } ty::Opaque(def_id, substs) => { self.tcx.bound_item_bounds(def_id).subst(self.tcx, substs).iter().find_map(|pred| { - if let ty::PredicateKind::Projection(proj) = pred.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder() && Some(proj.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() // args tuple will always be substs[1] && let ty::Tuple(args) = proj.projection_ty.substs.type_at(1).kind() @@ -208,7 +208,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ty::Param(param) => { let def_id = self.tcx.generics_of(self.body_id.owner).type_param(¶m, self.tcx).def_id; self.tcx.predicates_of(self.body_id.owner).predicates.iter().find_map(|(pred, _)| { - if let ty::PredicateKind::Projection(proj) = pred.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder() && Some(proj.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() && proj.projection_ty.self_ty() == found // args tuple will always be substs[1] diff --git a/compiler/rustc_hir_typeck/src/generator_interior/mod.rs b/compiler/rustc_hir_typeck/src/generator_interior/mod.rs index bd3589c6c43..30d2c63fd84 100644 --- a/compiler/rustc_hir_typeck/src/generator_interior/mod.rs +++ b/compiler/rustc_hir_typeck/src/generator_interior/mod.rs @@ -566,7 +566,7 @@ fn check_must_not_suspend_ty<'tcx>( let mut has_emitted = false; for &(predicate, _) in fcx.tcx.explicit_item_bounds(def) { // We only look at the `DefId`, so it is safe to skip the binder here. - if let ty::PredicateKind::Trait(ref poly_trait_predicate) = + if let ty::PredicateKind::Clause(ty::Clause::Trait(ref poly_trait_predicate)) = predicate.kind().skip_binder() { let def_id = poly_trait_predicate.trait_ref.def_id; diff --git a/compiler/rustc_hir_typeck/src/method/confirm.rs b/compiler/rustc_hir_typeck/src/method/confirm.rs index d996d6ec610..e968ccc11e5 100644 --- a/compiler/rustc_hir_typeck/src/method/confirm.rs +++ b/compiler/rustc_hir_typeck/src/method/confirm.rs @@ -531,7 +531,9 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> { traits::elaborate_predicates(self.tcx, predicates.predicates.iter().copied()) // We don't care about regions here. .filter_map(|obligation| match obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(trait_pred) if trait_pred.def_id() == sized_def_id => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) + if trait_pred.def_id() == sized_def_id => + { let span = iter::zip(&predicates.predicates, &predicates.spans) .find_map( |(p, span)| { diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index 120ef2dac19..002467fb73e 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -785,7 +785,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { let bounds = self.param_env.caller_bounds().iter().filter_map(|predicate| { let bound_predicate = predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(trait_predicate) => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => { match *trait_predicate.trait_ref.self_ty().kind() { ty::Param(p) if p == param_ty => { Some(bound_predicate.rebind(trait_predicate.trait_ref)) @@ -795,12 +795,12 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { } ty::PredicateKind::Subtype(..) | ty::PredicateKind::Coerce(..) - | ty::PredicateKind::Projection(..) - | ty::PredicateKind::RegionOutlives(..) + | ty::PredicateKind::Clause(ty::Clause::Projection(..)) + | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) | ty::PredicateKind::WellFormed(..) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ClosureKind(..) - | ty::PredicateKind::TypeOutlives(..) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) | ty::PredicateKind::ConstEvaluatable(..) | ty::PredicateKind::ConstEquate(..) | ty::PredicateKind::Ambiguous diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index d0ea2b0e664..5ca74f713af 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -442,7 +442,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut unimplemented_traits = FxHashMap::default(); let mut unimplemented_traits_only = true; for (predicate, _parent_pred, cause) in &unsatisfied_predicates { - if let (ty::PredicateKind::Trait(p), Some(cause)) = + if let (ty::PredicateKind::Clause(ty::Clause::Trait(p)), Some(cause)) = (predicate.kind().skip_binder(), cause.as_ref()) { if p.trait_ref.self_ty() != rcvr_ty { @@ -469,7 +469,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // because of some non-Clone item being iterated over. for (predicate, _parent_pred, _cause) in &unsatisfied_predicates { match predicate.kind().skip_binder() { - ty::PredicateKind::Trait(p) + ty::PredicateKind::Clause(ty::Clause::Trait(p)) if unimplemented_traits.contains_key(&p.trait_ref.def_id) => {} _ => { unimplemented_traits_only = false; @@ -481,7 +481,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut collect_type_param_suggestions = |self_ty: Ty<'tcx>, parent_pred: ty::Predicate<'tcx>, obligation: &str| { // We don't care about regions here, so it's fine to skip the binder here. - if let (ty::Param(_), ty::PredicateKind::Trait(p)) = + if let (ty::Param(_), ty::PredicateKind::Clause(ty::Clause::Trait(p))) = (self_ty.kind(), parent_pred.kind().skip_binder()) { let hir = self.tcx.hir(); @@ -544,7 +544,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut format_pred = |pred: ty::Predicate<'tcx>| { let bound_predicate = pred.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Projection(pred) => { + ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => { let pred = bound_predicate.rebind(pred); // `<Foo as Iterator>::Item = String`. let projection_ty = pred.skip_binder().projection_ty; @@ -567,7 +567,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { bound_span_label(projection_ty.self_ty(), &obligation, &quiet); Some((obligation, projection_ty.self_ty())) } - ty::PredicateKind::Trait(poly_trait_ref) => { + ty::PredicateKind::Clause(ty::Clause::Trait(poly_trait_ref)) => { let p = poly_trait_ref.trait_ref; let self_ty = p.self_ty(); let path = p.print_only_trait_path(); @@ -637,7 +637,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let sized_pred = unsatisfied_predicates.iter().any(|(pred, _, _)| { match pred.kind().skip_binder() { - ty::PredicateKind::Trait(pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { Some(pred.def_id()) == self.tcx.lang_items().sized_trait() && pred.polarity == ty::ImplPolarity::Positive @@ -1722,7 +1722,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ) { let all_local_types_needing_impls = errors.iter().all(|e| match e.obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(pred) => match pred.self_ty().kind() { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => match pred.self_ty().kind() { ty::Adt(def, _) => def.did().is_local(), _ => false, }, @@ -1731,7 +1731,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut preds: Vec<_> = errors .iter() .filter_map(|e| match e.obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(pred) => Some(pred), + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => Some(pred), _ => None, }) .collect(); @@ -1802,7 +1802,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut derives = Vec::<(String, Span, Symbol)>::new(); let mut traits = Vec::<Span>::new(); for (pred, _, _) in unsatisfied_predicates { - let ty::PredicateKind::Trait(trait_pred) = pred.kind().skip_binder() else { continue }; + let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = pred.kind().skip_binder() else { continue }; let adt = match trait_pred.self_ty().ty_adt_def() { Some(adt) if adt.did().is_local() => adt, _ => continue, @@ -2212,8 +2212,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { match p.kind().skip_binder() { // Hide traits if they are present in predicates as they can be fixed without // having to implement them. - ty::PredicateKind::Trait(t) => t.def_id() == info.def_id, - ty::PredicateKind::Projection(p) => { + ty::PredicateKind::Clause(ty::Clause::Trait(t)) => { + t.def_id() == info.def_id + } + ty::PredicateKind::Clause(ty::Clause::Projection(p)) => { p.projection_ty.item_def_id == info.def_id } _ => false, diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs index b4a427a5d41..996b1c40e3f 100644 --- a/compiler/rustc_infer/src/infer/canonical/query_response.rs +++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs @@ -569,10 +569,10 @@ impl<'tcx> InferCtxt<'tcx> { let atom = match k1.unpack() { GenericArgKind::Lifetime(r1) => { - ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate(r1, r2)) + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate(r1, r2))) } GenericArgKind::Type(t1) => { - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(t1, r2)) + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(t1, r2))) } GenericArgKind::Const(..) => { // Consts cannot outlive one another, so we don't expect to @@ -720,8 +720,8 @@ impl<'tcx> TypeRelatingDelegate<'tcx> for QueryTypeRelatingDelegate<'_, 'tcx> { self.obligations.push(Obligation { cause: self.cause.clone(), param_env: self.param_env, - predicate: ty::Binder::dummy(ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate( - sup, sub, + predicate: ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::RegionOutlives( + ty::OutlivesPredicate(sup, sub), ))) .to_predicate(self.infcx.tcx), recursion_depth: 0, diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index 0dee3be7054..ecb23e2be7d 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -351,7 +351,7 @@ impl<'tcx> InferCtxt<'tcx> { let output = predicate .kind() .map_bound(|kind| match kind { - ty::PredicateKind::Projection(projection_predicate) + ty::PredicateKind::Clause(ty::Clause::Projection(projection_predicate)) if projection_predicate.projection_ty.item_def_id == item_def_id => { projection_predicate.term.ty() diff --git a/compiler/rustc_infer/src/infer/opaque_types.rs b/compiler/rustc_infer/src/infer/opaque_types.rs index 8d3d002cb27..26caf82ec6a 100644 --- a/compiler/rustc_infer/src/infer/opaque_types.rs +++ b/compiler/rustc_infer/src/infer/opaque_types.rs @@ -595,7 +595,9 @@ impl<'tcx> InferCtxt<'tcx> { ct_op: |ct| ct, }); - if let ty::PredicateKind::Projection(projection) = predicate.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Projection(projection)) = + predicate.kind().skip_binder() + { if projection.term.references_error() { // No point on adding these obligations since there's a type error involved. return Ok(InferOk { value: (), obligations: vec![] }); diff --git a/compiler/rustc_infer/src/infer/outlives/mod.rs b/compiler/rustc_infer/src/infer/outlives/mod.rs index 8f780579451..4daa257672c 100644 --- a/compiler/rustc_infer/src/infer/outlives/mod.rs +++ b/compiler/rustc_infer/src/infer/outlives/mod.rs @@ -19,20 +19,21 @@ pub fn explicit_outlives_bounds<'tcx>( .map(ty::Predicate::kind) .filter_map(ty::Binder::no_bound_vars) .filter_map(move |kind| match kind { - ty::PredicateKind::Projection(..) - | ty::PredicateKind::Trait(..) + ty::PredicateKind::Clause(ty::Clause::Projection(..)) + | ty::PredicateKind::Clause(ty::Clause::Trait(..)) | ty::PredicateKind::Coerce(..) | ty::PredicateKind::Subtype(..) | ty::PredicateKind::WellFormed(..) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ClosureKind(..) - | ty::PredicateKind::TypeOutlives(..) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) | ty::PredicateKind::ConstEvaluatable(..) | ty::PredicateKind::ConstEquate(..) | ty::PredicateKind::Ambiguous | ty::PredicateKind::TypeWellFormedFromEnv(..) => None, - ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate(r_a, r_b)) => { - Some(OutlivesBound::RegionSubRegion(r_b, r_a)) - } + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate( + r_a, + r_b, + ))) => Some(OutlivesBound::RegionSubRegion(r_b, r_a)), }) } diff --git a/compiler/rustc_infer/src/traits/mod.rs b/compiler/rustc_infer/src/traits/mod.rs index a9e6241bf6b..026713b6a28 100644 --- a/compiler/rustc_infer/src/traits/mod.rs +++ b/compiler/rustc_infer/src/traits/mod.rs @@ -70,8 +70,8 @@ impl<'tcx> PredicateObligation<'tcx> { pub fn without_const(mut self, tcx: TyCtxt<'tcx>) -> PredicateObligation<'tcx> { self.param_env = self.param_env.without_const(); - if let ty::PredicateKind::Trait(trait_pred) = self.predicate.kind().skip_binder() && trait_pred.is_const_if_const() { - self.predicate = tcx.mk_predicate(self.predicate.kind().map_bound(|_| ty::PredicateKind::Trait(trait_pred.without_const()))); + if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = self.predicate.kind().skip_binder() && trait_pred.is_const_if_const() { + self.predicate = tcx.mk_predicate(self.predicate.kind().map_bound(|_| ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred.without_const())))); } self } diff --git a/compiler/rustc_infer/src/traits/util.rs b/compiler/rustc_infer/src/traits/util.rs index b2a31ac7e6f..512e6079f43 100644 --- a/compiler/rustc_infer/src/traits/util.rs +++ b/compiler/rustc_infer/src/traits/util.rs @@ -141,7 +141,7 @@ impl<'tcx> Elaborator<'tcx> { let bound_predicate = obligation.predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(data) => { + ty::PredicateKind::Clause(ty::Clause::Trait(data)) => { // Get predicates declared on the trait. let predicates = tcx.super_predicates_of(data.def_id()); @@ -184,7 +184,7 @@ impl<'tcx> Elaborator<'tcx> { // Currently, we do not "elaborate" predicates like `X -> Y`, // though conceivably we might. } - ty::PredicateKind::Projection(..) => { + ty::PredicateKind::Clause(ty::Clause::Projection(..)) => { // Nothing to elaborate in a projection predicate. } ty::PredicateKind::ClosureKind(..) => { @@ -198,10 +198,13 @@ impl<'tcx> Elaborator<'tcx> { // Currently, we do not elaborate const-equate // predicates. } - ty::PredicateKind::RegionOutlives(..) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) => { // Nothing to elaborate from `'a: 'b`. } - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty_max, r_min)) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + ty_max, + r_min, + ))) => { // We know that `T: 'a` for some type `T`. We can // often elaborate this. For example, if we know that // `[U]: 'a`, that implies that `U: 'a`. Similarly, if @@ -231,16 +234,16 @@ impl<'tcx> Elaborator<'tcx> { if r.is_late_bound() { None } else { - Some(ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate( - r, r_min, + Some(ty::PredicateKind::Clause(ty::Clause::RegionOutlives( + ty::OutlivesPredicate(r, r_min), ))) } } Component::Param(p) => { let ty = tcx.mk_ty_param(p.index, p.name); - Some(ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate( - ty, r_min, + Some(ty::PredicateKind::Clause(ty::Clause::TypeOutlives( + ty::OutlivesPredicate(ty, r_min), ))) } @@ -248,8 +251,8 @@ impl<'tcx> Elaborator<'tcx> { Component::Opaque(def_id, substs) => { let ty = tcx.mk_opaque(def_id, substs); - Some(ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate( - ty, r_min, + Some(ty::PredicateKind::Clause(ty::Clause::TypeOutlives( + ty::OutlivesPredicate(ty, r_min), ))) } @@ -258,8 +261,8 @@ impl<'tcx> Elaborator<'tcx> { // With this, we can deduce that `<Bar as Baz>::Assoc: 'a`. let ty = tcx.mk_projection(projection.item_def_id, projection.substs); - Some(ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate( - ty, r_min, + Some(ty::PredicateKind::Clause(ty::Clause::TypeOutlives( + ty::OutlivesPredicate(ty, r_min), ))) } diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index ada3c3b67fb..4b5aa3badda 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -1638,19 +1638,20 @@ declare_lint_pass!( impl<'tcx> LateLintPass<'tcx> for TrivialConstraints { fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'tcx>) { use rustc_middle::ty::visit::TypeVisitable; + use rustc_middle::ty::Clause; use rustc_middle::ty::PredicateKind::*; if cx.tcx.features().trivial_bounds { let predicates = cx.tcx.predicates_of(item.owner_id); for &(predicate, span) in predicates.predicates { let predicate_kind_name = match predicate.kind().skip_binder() { - Trait(..) => "trait", - TypeOutlives(..) | - RegionOutlives(..) => "lifetime", + Clause(Clause::Trait(..)) => "trait", + Clause(Clause::TypeOutlives(..)) | + Clause(Clause::RegionOutlives(..)) => "lifetime", // Ignore projections, as they can only be global // if the trait bound is global - Projection(..) | + Clause(Clause::Projection(..)) | // Ignore bounds that a user can't type WellFormed(..) | ObjectSafe(..) | @@ -2051,7 +2052,10 @@ impl ExplicitOutlivesRequirements { inferred_outlives .iter() .filter_map(|(pred, _)| match pred.kind().skip_binder() { - ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate(a, b)) => match *a { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate( + a, + b, + ))) => match *a { ty::ReEarlyBound(ebr) if ebr.def_id == def_id => Some(b), _ => None, }, @@ -2067,9 +2071,10 @@ impl ExplicitOutlivesRequirements { inferred_outlives .iter() .filter_map(|(pred, _)| match pred.kind().skip_binder() { - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(a, b)) => { - a.is_param(index).then_some(b) - } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + a, + b, + ))) => a.is_param(index).then_some(b), _ => None, }) .collect() diff --git a/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs b/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs index 7e0a8a0df16..03d6f4fd926 100644 --- a/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs +++ b/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs @@ -74,7 +74,7 @@ impl<'tcx> LateLintPass<'tcx> for OpaqueHiddenInferredBound { // Liberate bound regions in the predicate since we // don't actually care about lifetimes in this check. let predicate = cx.tcx.liberate_late_bound_regions(def_id, pred.kind()); - let ty::PredicateKind::Projection(proj) = predicate else { + let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = predicate else { continue; }; // Only check types, since those are the only things that may @@ -116,12 +116,13 @@ impl<'tcx> LateLintPass<'tcx> for OpaqueHiddenInferredBound { // If it's a trait bound and an opaque that doesn't satisfy it, // then we can emit a suggestion to add the bound. let add_bound = match (proj_term.kind(), assoc_pred.kind().skip_binder()) { - (ty::Opaque(def_id, _), ty::PredicateKind::Trait(trait_pred)) => { - Some(AddBound { - suggest_span: cx.tcx.def_span(*def_id).shrink_to_hi(), - trait_ref: trait_pred.print_modifiers_and_trait_path(), - }) - } + ( + ty::Opaque(def_id, _), + ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)), + ) => Some(AddBound { + suggest_span: cx.tcx.def_span(*def_id).shrink_to_hi(), + trait_ref: trait_pred.print_modifiers_and_trait_path(), + }), _ => None, }; cx.emit_spanned_lint( diff --git a/compiler/rustc_lint/src/traits.rs b/compiler/rustc_lint/src/traits.rs index f22f38aa2ce..1b21c2dac37 100644 --- a/compiler/rustc_lint/src/traits.rs +++ b/compiler/rustc_lint/src/traits.rs @@ -87,11 +87,12 @@ declare_lint_pass!( impl<'tcx> LateLintPass<'tcx> for DropTraitConstraints { fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'tcx>) { + use rustc_middle::ty::Clause; use rustc_middle::ty::PredicateKind::*; let predicates = cx.tcx.explicit_predicates_of(item.owner_id); for &(predicate, span) in predicates.predicates { - let Trait(trait_predicate) = predicate.kind().skip_binder() else { + let Clause(Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() else { continue }; let def_id = trait_predicate.trait_ref.def_id; diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index 5c9217db118..43864ed45fa 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -258,8 +258,9 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults { ) .filter_map(|obligation| { // We only look at the `DefId`, so it is safe to skip the binder here. - if let ty::PredicateKind::Trait(ref poly_trait_predicate) = - obligation.predicate.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Trait( + ref poly_trait_predicate, + )) = obligation.predicate.kind().skip_binder() { let def_id = poly_trait_predicate.trait_ref.def_id; diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index b5327ad0cec..bede0ec142e 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -2296,7 +2296,7 @@ impl<'tcx> TyCtxt<'tcx> { let future_trait = self.require_lang_item(LangItem::Future, None); self.explicit_item_bounds(def_id).iter().any(|(predicate, _)| { - let ty::PredicateKind::Trait(trait_predicate) = predicate.kind().skip_binder() else { + let ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() else { return false; }; trait_predicate.trait_ref.def_id == future_trait @@ -2319,7 +2319,9 @@ impl<'tcx> TyCtxt<'tcx> { let generic_predicates = self.super_predicates_of(trait_did); for (predicate, _) in generic_predicates.predicates { - if let ty::PredicateKind::Trait(data) = predicate.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Trait(data)) = + predicate.kind().skip_binder() + { if set.insert(data.def_id()) { stack.push(data.def_id()); } diff --git a/compiler/rustc_middle/src/ty/flags.rs b/compiler/rustc_middle/src/ty/flags.rs index ee4b8f91c54..61f3a0685e7 100644 --- a/compiler/rustc_middle/src/ty/flags.rs +++ b/compiler/rustc_middle/src/ty/flags.rs @@ -216,14 +216,17 @@ impl FlagComputation { fn add_predicate_atom(&mut self, atom: ty::PredicateKind<'_>) { match atom { - ty::PredicateKind::Trait(trait_pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) => { self.add_substs(trait_pred.trait_ref.substs); } - ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate(a, b)) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(ty::OutlivesPredicate(a, b))) => { self.add_region(a); self.add_region(b); } - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty, region)) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + ty, + region, + ))) => { self.add_ty(ty); self.add_region(region); } @@ -235,7 +238,10 @@ impl FlagComputation { self.add_ty(a); self.add_ty(b); } - ty::PredicateKind::Projection(ty::ProjectionPredicate { projection_ty, term }) => { + ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate { + projection_ty, + term, + })) => { self.add_projection_ty(projection_ty); match term.unpack() { ty::TermKind::Ty(ty) => self.add_ty(ty), diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index 8e03cba15ef..f20fa3c32ad 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -574,13 +574,15 @@ impl<'tcx> Predicate<'tcx> { let kind = self .kind() .map_bound(|kind| match kind { - PredicateKind::Trait(TraitPredicate { trait_ref, constness, polarity }) => { - Some(PredicateKind::Trait(TraitPredicate { - trait_ref, - constness, - polarity: polarity.flip()?, - })) - } + PredicateKind::Clause(Clause::Trait(TraitPredicate { + trait_ref, + constness, + polarity, + })) => Some(PredicateKind::Clause(Clause::Trait(TraitPredicate { + trait_ref, + constness, + polarity: polarity.flip()?, + }))), _ => None, }) @@ -590,14 +592,14 @@ impl<'tcx> Predicate<'tcx> { } pub fn without_const(mut self, tcx: TyCtxt<'tcx>) -> Self { - if let PredicateKind::Trait(TraitPredicate { trait_ref, constness, polarity }) = self.kind().skip_binder() + if let PredicateKind::Clause(Clause::Trait(TraitPredicate { trait_ref, constness, polarity })) = self.kind().skip_binder() && constness != BoundConstness::NotConst { - self = tcx.mk_predicate(self.kind().rebind(PredicateKind::Trait(TraitPredicate { + self = tcx.mk_predicate(self.kind().rebind(PredicateKind::Clause(Clause::Trait(TraitPredicate { trait_ref, constness: BoundConstness::NotConst, polarity, - }))); + })))); } self } @@ -611,10 +613,10 @@ impl<'tcx> Predicate<'tcx> { pub fn allow_normalization(self) -> bool { match self.kind().skip_binder() { PredicateKind::WellFormed(_) => false, - PredicateKind::Trait(_) - | PredicateKind::RegionOutlives(_) - | PredicateKind::TypeOutlives(_) - | PredicateKind::Projection(_) + PredicateKind::Clause(Clause::Trait(_)) + | PredicateKind::Clause(Clause::RegionOutlives(_)) + | PredicateKind::Clause(Clause::TypeOutlives(_)) + | PredicateKind::Clause(Clause::Projection(_)) | PredicateKind::ObjectSafe(_) | PredicateKind::ClosureKind(_, _, _) | PredicateKind::Subtype(_) @@ -650,7 +652,9 @@ impl rustc_errors::IntoDiagnosticArg for Predicate<'_> { #[derive(Clone, Copy, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] #[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] -pub enum PredicateKind<'tcx> { +/// A clause is something that can appear in where bounds or be inferred +/// by implied bounds. +pub enum Clause<'tcx> { /// Corresponds to `where Foo: Bar<A, B, C>`. `Foo` here would be /// the `Self` type of the trait reference and `A`, `B`, and `C` /// would be the type parameters. @@ -665,6 +669,13 @@ pub enum PredicateKind<'tcx> { /// `where <T as TraitRef>::Name == X`, approximately. /// See the `ProjectionPredicate` struct for details. Projection(ProjectionPredicate<'tcx>), +} + +#[derive(Clone, Copy, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] +#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] +pub enum PredicateKind<'tcx> { + /// Prove a clause + Clause(Clause<'tcx>), /// No syntax: `T` well-formed. WellFormed(GenericArg<'tcx>), @@ -1174,25 +1185,25 @@ impl<'tcx> ToPredicate<'tcx, PolyTraitPredicate<'tcx>> for Binder<'tcx, TraitRef impl<'tcx> ToPredicate<'tcx, Predicate<'tcx>> for PolyTraitPredicate<'tcx> { fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { - self.map_bound(PredicateKind::Trait).to_predicate(tcx) + self.map_bound(|p| PredicateKind::Clause(Clause::Trait(p))).to_predicate(tcx) } } impl<'tcx> ToPredicate<'tcx, Predicate<'tcx>> for PolyRegionOutlivesPredicate<'tcx> { fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { - self.map_bound(PredicateKind::RegionOutlives).to_predicate(tcx) + self.map_bound(|p| PredicateKind::Clause(Clause::RegionOutlives(p))).to_predicate(tcx) } } impl<'tcx> ToPredicate<'tcx, Predicate<'tcx>> for PolyTypeOutlivesPredicate<'tcx> { fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { - self.map_bound(PredicateKind::TypeOutlives).to_predicate(tcx) + self.map_bound(|p| PredicateKind::Clause(Clause::TypeOutlives(p))).to_predicate(tcx) } } impl<'tcx> ToPredicate<'tcx, Predicate<'tcx>> for PolyProjectionPredicate<'tcx> { fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { - self.map_bound(PredicateKind::Projection).to_predicate(tcx) + self.map_bound(|p| PredicateKind::Clause(Clause::Projection(p))).to_predicate(tcx) } } @@ -1200,15 +1211,15 @@ impl<'tcx> Predicate<'tcx> { pub fn to_opt_poly_trait_pred(self) -> Option<PolyTraitPredicate<'tcx>> { let predicate = self.kind(); match predicate.skip_binder() { - PredicateKind::Trait(t) => Some(predicate.rebind(t)), - PredicateKind::Projection(..) + PredicateKind::Clause(Clause::Trait(t)) => Some(predicate.rebind(t)), + PredicateKind::Clause(Clause::Projection(..)) | PredicateKind::Subtype(..) | PredicateKind::Coerce(..) - | PredicateKind::RegionOutlives(..) + | PredicateKind::Clause(Clause::RegionOutlives(..)) | PredicateKind::WellFormed(..) | PredicateKind::ObjectSafe(..) | PredicateKind::ClosureKind(..) - | PredicateKind::TypeOutlives(..) + | PredicateKind::Clause(Clause::TypeOutlives(..)) | PredicateKind::ConstEvaluatable(..) | PredicateKind::ConstEquate(..) | PredicateKind::Ambiguous @@ -1219,15 +1230,15 @@ impl<'tcx> Predicate<'tcx> { pub fn to_opt_poly_projection_pred(self) -> Option<PolyProjectionPredicate<'tcx>> { let predicate = self.kind(); match predicate.skip_binder() { - PredicateKind::Projection(t) => Some(predicate.rebind(t)), - PredicateKind::Trait(..) + PredicateKind::Clause(Clause::Projection(t)) => Some(predicate.rebind(t)), + PredicateKind::Clause(Clause::Trait(..)) | PredicateKind::Subtype(..) | PredicateKind::Coerce(..) - | PredicateKind::RegionOutlives(..) + | PredicateKind::Clause(Clause::RegionOutlives(..)) | PredicateKind::WellFormed(..) | PredicateKind::ObjectSafe(..) | PredicateKind::ClosureKind(..) - | PredicateKind::TypeOutlives(..) + | PredicateKind::Clause(Clause::TypeOutlives(..)) | PredicateKind::ConstEvaluatable(..) | PredicateKind::ConstEquate(..) | PredicateKind::Ambiguous @@ -1238,12 +1249,12 @@ impl<'tcx> Predicate<'tcx> { pub fn to_opt_type_outlives(self) -> Option<PolyTypeOutlivesPredicate<'tcx>> { let predicate = self.kind(); match predicate.skip_binder() { - PredicateKind::TypeOutlives(data) => Some(predicate.rebind(data)), - PredicateKind::Trait(..) - | PredicateKind::Projection(..) + PredicateKind::Clause(Clause::TypeOutlives(data)) => Some(predicate.rebind(data)), + PredicateKind::Clause(Clause::Trait(..)) + | PredicateKind::Clause(Clause::Projection(..)) | PredicateKind::Subtype(..) | PredicateKind::Coerce(..) - | PredicateKind::RegionOutlives(..) + | PredicateKind::Clause(Clause::RegionOutlives(..)) | PredicateKind::WellFormed(..) | PredicateKind::ObjectSafe(..) | PredicateKind::ClosureKind(..) diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index c54edf10c2d..a90b63cc05b 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -814,7 +814,7 @@ pub trait PrettyPrinter<'tcx>: let bound_predicate = predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { let trait_ref = bound_predicate.rebind(pred.trait_ref); // Don't print + Sized, but rather + ?Sized if absent. @@ -825,7 +825,7 @@ pub trait PrettyPrinter<'tcx>: self.insert_trait_and_projection(trait_ref, None, &mut traits, &mut fn_traits); } - ty::PredicateKind::Projection(pred) => { + ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => { let proj_ref = bound_predicate.rebind(pred); let trait_ref = proj_ref.required_poly_trait_ref(tcx); @@ -839,7 +839,7 @@ pub trait PrettyPrinter<'tcx>: &mut fn_traits, ); } - ty::PredicateKind::TypeOutlives(outlives) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(outlives)) => { lifetimes.push(outlives.1); } _ => {} @@ -2689,14 +2689,14 @@ define_print_and_forward_display! { ty::PredicateKind<'tcx> { match *self { - ty::PredicateKind::Trait(ref data) => { + ty::PredicateKind::Clause(ty::Clause::Trait(ref data)) => { p!(print(data)) } ty::PredicateKind::Subtype(predicate) => p!(print(predicate)), ty::PredicateKind::Coerce(predicate) => p!(print(predicate)), - ty::PredicateKind::RegionOutlives(predicate) => p!(print(predicate)), - ty::PredicateKind::TypeOutlives(predicate) => p!(print(predicate)), - ty::PredicateKind::Projection(predicate) => p!(print(predicate)), + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => p!(print(predicate)), + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => p!(print(predicate)), + ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => p!(print(predicate)), ty::PredicateKind::WellFormed(arg) => p!(print(arg), " well-formed"), ty::PredicateKind::ObjectSafe(trait_def_id) => { p!("the trait `", print_def_path(trait_def_id, &[]), "` is object-safe") diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 64b4fd11762..c8baac1ec20 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -150,15 +150,23 @@ impl<'tcx> fmt::Debug for ty::Predicate<'tcx> { } } +impl<'tcx> fmt::Debug for ty::Clause<'tcx> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match *self { + ty::Clause::Trait(ref a) => a.fmt(f), + ty::Clause::RegionOutlives(ref pair) => pair.fmt(f), + ty::Clause::TypeOutlives(ref pair) => pair.fmt(f), + ty::Clause::Projection(ref pair) => pair.fmt(f), + } + } +} + impl<'tcx> fmt::Debug for ty::PredicateKind<'tcx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { - ty::PredicateKind::Trait(ref a) => a.fmt(f), + ty::PredicateKind::Clause(ref a) => a.fmt(f), ty::PredicateKind::Subtype(ref pair) => pair.fmt(f), ty::PredicateKind::Coerce(ref pair) => pair.fmt(f), - ty::PredicateKind::RegionOutlives(ref pair) => pair.fmt(f), - ty::PredicateKind::TypeOutlives(ref pair) => pair.fmt(f), - ty::PredicateKind::Projection(ref pair) => pair.fmt(f), ty::PredicateKind::WellFormed(data) => write!(f, "WellFormed({:?})", data), ty::PredicateKind::ObjectSafe(trait_def_id) => { write!(f, "ObjectSafe({:?})", trait_def_id) diff --git a/compiler/rustc_mir_transform/src/function_item_references.rs b/compiler/rustc_mir_transform/src/function_item_references.rs index 469566694a3..b708d780b70 100644 --- a/compiler/rustc_mir_transform/src/function_item_references.rs +++ b/compiler/rustc_mir_transform/src/function_item_references.rs @@ -110,7 +110,7 @@ impl<'tcx> FunctionItemRefChecker<'_, 'tcx> { /// If the given predicate is the trait `fmt::Pointer`, returns the bound parameter type. fn is_pointer_trait(&self, bound: &PredicateKind<'tcx>) -> Option<Ty<'tcx>> { - if let ty::PredicateKind::Trait(predicate) = bound { + if let ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) = bound { if self.tcx.is_diagnostic_item(sym::Pointer, predicate.def_id()) { Some(predicate.trait_ref.self_ty()) } else { diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index 1d9ae539b60..550ed9b6378 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -146,19 +146,23 @@ where fn visit_predicate(&mut self, predicate: ty::Predicate<'tcx>) -> ControlFlow<V::BreakTy> { match predicate.kind().skip_binder() { - ty::PredicateKind::Trait(ty::TraitPredicate { + ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { trait_ref, constness: _, polarity: _, - }) => self.visit_trait(trait_ref), - ty::PredicateKind::Projection(ty::ProjectionPredicate { projection_ty, term }) => { + })) => self.visit_trait(trait_ref), + ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate { + projection_ty, + term, + })) => { term.visit_with(self)?; self.visit_projection_ty(projection_ty) } - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty, _region)) => { - ty.visit_with(self) - } - ty::PredicateKind::RegionOutlives(..) => ControlFlow::CONTINUE, + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + ty, + _region, + ))) => ty.visit_with(self), + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) => ControlFlow::CONTINUE, ty::PredicateKind::ConstEvaluatable(ct) => ct.visit_with(self), ty::PredicateKind::WellFormed(arg) => arg.visit_with(self), _ => bug!("unexpected predicate: {:?}", predicate), diff --git a/compiler/rustc_trait_selection/src/traits/auto_trait.rs b/compiler/rustc_trait_selection/src/traits/auto_trait.rs index 66f80e92eb7..52552ff3f86 100644 --- a/compiler/rustc_trait_selection/src/traits/auto_trait.rs +++ b/compiler/rustc_trait_selection/src/traits/auto_trait.rs @@ -403,8 +403,10 @@ impl<'tcx> AutoTraitFinder<'tcx> { ) { let mut should_add_new = true; user_computed_preds.retain(|&old_pred| { - if let (ty::PredicateKind::Trait(new_trait), ty::PredicateKind::Trait(old_trait)) = - (new_pred.kind().skip_binder(), old_pred.kind().skip_binder()) + if let ( + ty::PredicateKind::Clause(ty::Clause::Trait(new_trait)), + ty::PredicateKind::Clause(ty::Clause::Trait(old_trait)), + ) = (new_pred.kind().skip_binder(), old_pred.kind().skip_binder()) { if new_trait.def_id() == old_trait.def_id() { let new_substs = new_trait.trait_ref.substs; @@ -624,14 +626,14 @@ impl<'tcx> AutoTraitFinder<'tcx> { let bound_predicate = predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(p) => { + ty::PredicateKind::Clause(ty::Clause::Trait(p)) => { // Add this to `predicates` so that we end up calling `select` // with it. If this predicate ends up being unimplemented, // then `evaluate_predicates` will handle adding it the `ParamEnv` // if possible. predicates.push_back(bound_predicate.rebind(p)); } - ty::PredicateKind::Projection(p) => { + ty::PredicateKind::Clause(ty::Clause::Projection(p)) => { let p = bound_predicate.rebind(p); debug!( "evaluate_nested_obligations: examining projection predicate {:?}", @@ -764,11 +766,11 @@ impl<'tcx> AutoTraitFinder<'tcx> { } } } - ty::PredicateKind::RegionOutlives(binder) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(binder)) => { let binder = bound_predicate.rebind(binder); select.infcx().region_outlives_predicate(&dummy_cause, binder) } - ty::PredicateKind::TypeOutlives(binder) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(binder)) => { let binder = bound_predicate.rebind(binder); match ( binder.no_bound_vars(), diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs index 2d46960d97b..e38b00a388d 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs @@ -587,7 +587,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let bound_predicate = obligation.predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(trait_predicate) => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => { let trait_predicate = bound_predicate.rebind(trait_predicate); let mut trait_predicate = self.resolve_vars_if_possible(trait_predicate); @@ -1051,9 +1051,9 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { span_bug!(span, "coerce requirement gave wrong error: `{:?}`", predicate) } - ty::PredicateKind::RegionOutlives(..) - | ty::PredicateKind::Projection(..) - | ty::PredicateKind::TypeOutlives(..) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) + | ty::PredicateKind::Clause(ty::Clause::Projection(..)) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) => { let predicate = self.resolve_vars_if_possible(obligation.predicate); struct_span_err!( self.tcx.sess, @@ -1473,9 +1473,10 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { // FIXME: It should be possible to deal with `ForAll` in a cleaner way. let bound_error = error.kind(); let (cond, error) = match (cond.kind().skip_binder(), bound_error.skip_binder()) { - (ty::PredicateKind::Trait(..), ty::PredicateKind::Trait(error)) => { - (cond, bound_error.rebind(error)) - } + ( + ty::PredicateKind::Clause(ty::Clause::Trait(..)), + ty::PredicateKind::Clause(ty::Clause::Trait(error)), + ) => (cond, bound_error.rebind(error)), _ => { // FIXME: make this work in other cases too. return false; @@ -1484,7 +1485,9 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { for obligation in super::elaborate_predicates(self.tcx, std::iter::once(cond)) { let bound_predicate = obligation.predicate.kind(); - if let ty::PredicateKind::Trait(implication) = bound_predicate.skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Trait(implication)) = + bound_predicate.skip_binder() + { let error = error.to_poly_trait_ref(); let implication = bound_predicate.rebind(implication.trait_ref); // FIXME: I'm just not taking associated types at all here. @@ -1581,7 +1584,9 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { // this can fail if the problem was higher-ranked, in which // cause I have no idea for a good error message. let bound_predicate = predicate.kind(); - if let ty::PredicateKind::Projection(data) = bound_predicate.skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Projection(data)) = + bound_predicate.skip_binder() + { let mut selcx = SelectionContext::new(self); let data = self.replace_bound_vars_with_fresh_vars( obligation.cause.span, @@ -1629,7 +1634,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let mut diag = struct_span_err!(self.tcx.sess, obligation.cause.span, E0271, "{msg}"); let secondary_span = match predicate.kind().skip_binder() { - ty::PredicateKind::Projection(proj) => self + ty::PredicateKind::Clause(ty::Clause::Projection(proj)) => self .tcx .opt_associated_item(proj.projection_ty.item_def_id) .and_then(|trait_assoc_item| { @@ -2047,7 +2052,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let bound_predicate = predicate.kind(); let mut err = match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(data) => { + ty::PredicateKind::Clause(ty::Clause::Trait(data)) => { let trait_ref = bound_predicate.rebind(data.trait_ref); debug!(?trait_ref); @@ -2324,7 +2329,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { assert!(a.is_ty_var() && b.is_ty_var()); self.emit_inference_failure_err(body_id, span, a.into(), ErrorCode::E0282, true) } - ty::PredicateKind::Projection(data) => { + ty::PredicateKind::Clause(ty::Clause::Projection(data)) => { if predicate.references_error() || self.tainted_by_errors().is_some() { return; } @@ -2570,7 +2575,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { err: &mut Diagnostic, obligation: &PredicateObligation<'tcx>, ) { - let ty::PredicateKind::Trait(pred) = obligation.predicate.kind().skip_binder() else { return; }; + let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = obligation.predicate.kind().skip_binder() else { return; }; let (ObligationCauseCode::BindingObligation(item_def_id, span) | ObligationCauseCode::ExprBindingObligation(item_def_id, span, ..)) = *obligation.cause.code().peel_derives() else { return; }; diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs index 30207033236..0113df5bdc6 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs @@ -810,7 +810,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { err: &mut Diagnostic, trait_pred: ty::PolyTraitPredicate<'tcx>, ) -> bool { - if let ty::PredicateKind::Trait(trait_pred) = obligation.predicate.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = obligation.predicate.kind().skip_binder() && Some(trait_pred.def_id()) == self.tcx.lang_items().sized_trait() { // Don't suggest calling to turn an unsized type into a sized type @@ -839,7 +839,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } ty::Opaque(def_id, substs) => { self.tcx.bound_item_bounds(def_id).subst(self.tcx, substs).iter().find_map(|pred| { - if let ty::PredicateKind::Projection(proj) = pred.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder() && Some(proj.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() // args tuple will always be substs[1] && let ty::Tuple(args) = proj.projection_ty.substs.type_at(1).kind() @@ -873,7 +873,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } ty::Param(_) => { obligation.param_env.caller_bounds().iter().find_map(|pred| { - if let ty::PredicateKind::Projection(proj) = pred.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder() && Some(proj.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() && proj.projection_ty.self_ty() == found // args tuple will always be substs[1] @@ -1256,7 +1256,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ); // FIXME: account for associated `async fn`s. if let hir::Expr { span, kind: hir::ExprKind::Call(base, _), .. } = expr { - if let ty::PredicateKind::Trait(pred) = + if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = obligation.predicate.kind().skip_binder() { err.span_label( @@ -1755,7 +1755,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if let ObligationCauseCode::ExprBindingObligation(def_id, _, _, idx) = cause && let predicates = self.tcx.predicates_of(def_id).instantiate_identity(self.tcx) && let Some(pred) = predicates.predicates.get(*idx) - && let ty::PredicateKind::Trait(trait_pred) = pred.kind().skip_binder() + && let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = pred.kind().skip_binder() && ty::ClosureKind::from_def_id(self.tcx, trait_pred.def_id()).is_some() { let expected_self = @@ -1769,7 +1769,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let other_pred = std::iter::zip(&predicates.predicates, &predicates.spans) .enumerate() .find(|(other_idx, (pred, _))| match pred.kind().skip_binder() { - ty::PredicateKind::Trait(trait_pred) + ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) if ty::ClosureKind::from_def_id(self.tcx, trait_pred.def_id()) .is_some() && other_idx != idx @@ -1896,7 +1896,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { // bound was introduced. At least one generator should be present for this diagnostic to be // modified. let (mut trait_ref, mut target_ty) = match obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(p) => (Some(p), Some(p.self_ty())), + ty::PredicateKind::Clause(ty::Clause::Trait(p)) => (Some(p), Some(p.self_ty())), _ => (None, None), }; let mut generator = None; diff --git a/compiler/rustc_trait_selection/src/traits/fulfill.rs b/compiler/rustc_trait_selection/src/traits/fulfill.rs index e7513255dc4..b0d0d1a7cba 100644 --- a/compiler/rustc_trait_selection/src/traits/fulfill.rs +++ b/compiler/rustc_trait_selection/src/traits/fulfill.rs @@ -269,7 +269,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> { // Evaluation will discard candidates using the leak check. // This means we need to pass it the bound version of our // predicate. - ty::PredicateKind::Trait(trait_ref) => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_ref)) => { let trait_obligation = obligation.with(infcx.tcx, binder.rebind(trait_ref)); self.process_trait_obligation( @@ -278,7 +278,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> { &mut pending_obligation.stalled_on, ) } - ty::PredicateKind::Projection(data) => { + ty::PredicateKind::Clause(ty::Clause::Projection(data)) => { let project_obligation = obligation.with(infcx.tcx, binder.rebind(data)); self.process_projection_obligation( @@ -287,8 +287,8 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> { &mut pending_obligation.stalled_on, ) } - ty::PredicateKind::RegionOutlives(_) - | ty::PredicateKind::TypeOutlives(_) + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(_)) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(_)) | ty::PredicateKind::WellFormed(_) | ty::PredicateKind::ObjectSafe(_) | ty::PredicateKind::ClosureKind(..) @@ -306,7 +306,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> { } }, Some(pred) => match pred { - ty::PredicateKind::Trait(data) => { + ty::PredicateKind::Clause(ty::Clause::Trait(data)) => { let trait_obligation = obligation.with(infcx.tcx, Binder::dummy(data)); self.process_trait_obligation( @@ -316,7 +316,7 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> { ) } - ty::PredicateKind::RegionOutlives(data) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(data)) => { if infcx.considering_regions { infcx.region_outlives_predicate(&obligation.cause, Binder::dummy(data)); } @@ -324,14 +324,17 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> { ProcessResult::Changed(vec![]) } - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(t_a, r_b)) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + t_a, + r_b, + ))) => { if infcx.considering_regions { infcx.register_region_obligation_with_cause(t_a, r_b, &obligation.cause); } ProcessResult::Changed(vec![]) } - ty::PredicateKind::Projection(ref data) => { + ty::PredicateKind::Clause(ty::Clause::Projection(ref data)) => { let project_obligation = obligation.with(infcx.tcx, Binder::dummy(*data)); self.process_projection_obligation( diff --git a/compiler/rustc_trait_selection/src/traits/mod.rs b/compiler/rustc_trait_selection/src/traits/mod.rs index 4ab43c4e0b0..3112756a0b1 100644 --- a/compiler/rustc_trait_selection/src/traits/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/mod.rs @@ -317,7 +317,10 @@ pub fn normalize_param_env_or_error<'tcx>( // TypeOutlives predicates - these are normally used by regionck. let outlives_predicates: Vec<_> = predicates .drain_filter(|predicate| { - matches!(predicate.kind().skip_binder(), ty::PredicateKind::TypeOutlives(..)) + matches!( + predicate.kind().skip_binder(), + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) + ) }) .collect(); diff --git a/compiler/rustc_trait_selection/src/traits/object_safety.rs b/compiler/rustc_trait_selection/src/traits/object_safety.rs index 5bed10dec09..9f531e03f06 100644 --- a/compiler/rustc_trait_selection/src/traits/object_safety.rs +++ b/compiler/rustc_trait_selection/src/traits/object_safety.rs @@ -288,11 +288,11 @@ fn predicate_references_self<'tcx>( let self_ty = tcx.types.self_param; let has_self_ty = |arg: &GenericArg<'tcx>| arg.walk().any(|arg| arg == self_ty.into()); match predicate.kind().skip_binder() { - ty::PredicateKind::Trait(ref data) => { + ty::PredicateKind::Clause(ty::Clause::Trait(ref data)) => { // In the case of a trait predicate, we can skip the "self" type. if data.trait_ref.substs[1..].iter().any(has_self_ty) { Some(sp) } else { None } } - ty::PredicateKind::Projection(ref data) => { + ty::PredicateKind::Clause(ty::Clause::Projection(ref data)) => { // And similarly for projections. This should be redundant with // the previous check because any projection should have a // matching `Trait` predicate with the same inputs, but we do @@ -312,8 +312,8 @@ fn predicate_references_self<'tcx>( } ty::PredicateKind::WellFormed(..) | ty::PredicateKind::ObjectSafe(..) - | ty::PredicateKind::TypeOutlives(..) - | ty::PredicateKind::RegionOutlives(..) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) + | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) | ty::PredicateKind::ClosureKind(..) | ty::PredicateKind::Subtype(..) | ty::PredicateKind::Coerce(..) @@ -338,17 +338,17 @@ fn generics_require_sized_self(tcx: TyCtxt<'_>, def_id: DefId) -> bool { let predicates = predicates.instantiate_identity(tcx).predicates; elaborate_predicates(tcx, predicates.into_iter()).any(|obligation| { match obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(ref trait_pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(ref trait_pred)) => { trait_pred.def_id() == sized_def_id && trait_pred.self_ty().is_param(0) } - ty::PredicateKind::Projection(..) + ty::PredicateKind::Clause(ty::Clause::Projection(..)) | ty::PredicateKind::Subtype(..) | ty::PredicateKind::Coerce(..) - | ty::PredicateKind::RegionOutlives(..) + | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) | ty::PredicateKind::WellFormed(..) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ClosureKind(..) - | ty::PredicateKind::TypeOutlives(..) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) | ty::PredicateKind::ConstEvaluatable(..) | ty::PredicateKind::ConstEquate(..) | ty::PredicateKind::Ambiguous diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs index 428eea0adc7..c3605a4aab6 100644 --- a/compiler/rustc_trait_selection/src/traits/project.rs +++ b/compiler/rustc_trait_selection/src/traits/project.rs @@ -1476,7 +1476,9 @@ fn assemble_candidates_from_predicates<'cx, 'tcx>( let infcx = selcx.infcx(); for predicate in env_predicates { let bound_predicate = predicate.kind(); - if let ty::PredicateKind::Projection(data) = predicate.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Projection(data)) = + predicate.kind().skip_binder() + { let data = bound_predicate.rebind(data); if data.projection_def_id() != obligation.predicate.item_def_id { continue; diff --git a/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs b/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs index 4a419fbe952..09b58894d30 100644 --- a/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs +++ b/compiler/rustc_trait_selection/src/traits/query/evaluate_obligation.rs @@ -66,7 +66,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> { let mut _orig_values = OriginalQueryValues::default(); let param_env = match obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { // we ignore the value set to it. let mut _constness = pred.constness; obligation diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/prove_predicate.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/prove_predicate.rs index 081308ac73e..68434c2b68d 100644 --- a/compiler/rustc_trait_selection/src/traits/query/type_op/prove_predicate.rs +++ b/compiler/rustc_trait_selection/src/traits/query/type_op/prove_predicate.rs @@ -15,7 +15,9 @@ impl<'tcx> super::QueryTypeOp<'tcx> for ProvePredicate<'tcx> { // `&T`, accounts for about 60% percentage of the predicates // we have to prove. No need to canonicalize and all that for // such cases. - if let ty::PredicateKind::Trait(trait_ref) = key.value.predicate.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_ref)) = + key.value.predicate.kind().skip_binder() + { if let Some(sized_def_id) = tcx.lang_items().sized_trait() { if trait_ref.def_id() == sized_def_id { if trait_ref.self_ty().is_trivially_sized(tcx) { @@ -33,7 +35,7 @@ impl<'tcx> super::QueryTypeOp<'tcx> for ProvePredicate<'tcx> { mut canonicalized: Canonicalized<'tcx, ParamEnvAnd<'tcx, Self>>, ) -> Fallible<CanonicalizedQueryResponse<'tcx, ()>> { match canonicalized.value.value.predicate.kind().skip_binder() { - ty::PredicateKind::Trait(pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { canonicalized.value.param_env.remap_constness_with(pred.constness); } _ => canonicalized.value.param_env = canonicalized.value.param_env.without_const(), diff --git a/compiler/rustc_trait_selection/src/traits/relationships.rs b/compiler/rustc_trait_selection/src/traits/relationships.rs index f844da50032..bfa318787e5 100644 --- a/compiler/rustc_trait_selection/src/traits/relationships.rs +++ b/compiler/rustc_trait_selection/src/traits/relationships.rs @@ -12,7 +12,7 @@ pub(crate) fn update<'tcx, T>( T: TraitEngine<'tcx>, { // (*) binder skipped - if let ty::PredicateKind::Trait(tpred) = obligation.predicate.kind().skip_binder() + if let ty::PredicateKind::Clause(ty::Clause::Trait(tpred)) = obligation.predicate.kind().skip_binder() && let Some(ty) = infcx.shallow_resolve(tpred.self_ty()).ty_vid().map(|t| infcx.root_var(t)) && infcx.tcx.lang_items().sized_trait().map_or(false, |st| st != tpred.trait_ref.def_id) { @@ -26,7 +26,7 @@ pub(crate) fn update<'tcx, T>( .kind() .rebind( // (*) binder moved here - ty::PredicateKind::Trait(tpred.with_self_type(infcx.tcx, new_self_ty)) + ty::PredicateKind::Clause(ty::Clause::Trait(tpred.with_self_type(infcx.tcx, new_self_ty))) ), ); // Don't report overflow errors. Otherwise equivalent to may_hold. @@ -35,7 +35,9 @@ pub(crate) fn update<'tcx, T>( } } - if let ty::PredicateKind::Projection(predicate) = obligation.predicate.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) = + obligation.predicate.kind().skip_binder() + { // If the projection predicate (Foo::Bar == X) has X as a non-TyVid, // we need to make it into one. if let Some(vid) = predicate.term.ty().and_then(|ty| ty.ty_vid()) { diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 9fe13fe296a..eedd8db61b0 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -419,7 +419,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { ensure_sufficient_stack(|| { let bound_predicate = obligation.predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(t) => { + ty::PredicateKind::Clause(ty::Clause::Trait(t)) => { let t = bound_predicate.rebind(t); debug_assert!(!t.has_escaping_bound_vars()); let obligation = obligation.with(self.tcx(), t); @@ -546,7 +546,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } - ty::PredicateKind::TypeOutlives(pred) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(pred)) => { // A global type with no late-bound regions can only // contain the "'static" lifetime (any other lifetime // would either be late-bound or local), so it is guaranteed @@ -558,7 +558,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } - ty::PredicateKind::RegionOutlives(..) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) => { // We do not consider region relationships when evaluating trait matches. Ok(EvaluatedToOkModuloRegions) } @@ -571,7 +571,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } - ty::PredicateKind::Projection(data) => { + ty::PredicateKind::Clause(ty::Clause::Projection(data)) => { let data = bound_predicate.rebind(data); let project_obligation = obligation.with(self.tcx(), data); match project::poly_project_and_unify_type(self, &project_obligation) { @@ -931,7 +931,9 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { fn coinductive_predicate(&self, predicate: ty::Predicate<'tcx>) -> bool { let result = match predicate.kind().skip_binder() { - ty::PredicateKind::Trait(ref data) => self.tcx().trait_is_coinductive(data.def_id()), + ty::PredicateKind::Clause(ty::Clause::Trait(ref data)) => { + self.tcx().trait_is_coinductive(data.def_id()) + } ty::PredicateKind::WellFormed(_) => true, _ => false, }; @@ -1377,7 +1379,9 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { .enumerate() .filter_map(|(idx, bound)| { let bound_predicate = bound.kind(); - if let ty::PredicateKind::Trait(pred) = bound_predicate.skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = + bound_predicate.skip_binder() + { let bound = bound_predicate.rebind(pred.trait_ref); if self.infcx.probe(|_| { match self.match_normalize_trait_ref( diff --git a/compiler/rustc_trait_selection/src/traits/specialize/mod.rs b/compiler/rustc_trait_selection/src/traits/specialize/mod.rs index 9a3c0707c7c..7ab4bc3cb85 100644 --- a/compiler/rustc_trait_selection/src/traits/specialize/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/specialize/mod.rs @@ -476,7 +476,9 @@ pub(crate) fn to_pretty_impl_header(tcx: TyCtxt<'_>, impl_def_id: DefId) -> Opti trait_pred }); - p = tcx.mk_predicate(new_trait_pred.map_bound(ty::PredicateKind::Trait)) + p = tcx.mk_predicate( + new_trait_pred.map_bound(|p| ty::PredicateKind::Clause(ty::Clause::Trait(p))), + ) } } pretty_predicates.push(p.to_string()); diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs index 5e506a23f38..fe68315ceb6 100644 --- a/compiler/rustc_trait_selection/src/traits/wf.rs +++ b/compiler/rustc_trait_selection/src/traits/wf.rs @@ -121,14 +121,14 @@ pub fn predicate_obligations<'tcx>( // It's ok to skip the binder here because wf code is prepared for it match predicate.kind().skip_binder() { - ty::PredicateKind::Trait(t) => { + ty::PredicateKind::Clause(ty::Clause::Trait(t)) => { wf.compute_trait_pred(&t, Elaborate::None); } - ty::PredicateKind::RegionOutlives(..) => {} - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty, _reg)) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) => {} + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate(ty, _reg))) => { wf.compute(ty.into()); } - ty::PredicateKind::Projection(t) => { + ty::PredicateKind::Clause(ty::Clause::Projection(t)) => { wf.compute_projection(t.projection_ty); wf.compute(match t.term.unpack() { ty::TermKind::Ty(ty) => ty.into(), @@ -228,7 +228,7 @@ fn extend_cause_with_original_assoc_item_obligation<'tcx>( // It is fine to skip the binder as we don't care about regions here. match pred.kind().skip_binder() { - ty::PredicateKind::Projection(proj) => { + ty::PredicateKind::Clause(ty::Clause::Projection(proj)) => { // The obligation comes not from the current `impl` nor the `trait` being implemented, // but rather from a "second order" obligation, where an associated type has a // projection coming from another associated type. See @@ -245,7 +245,7 @@ fn extend_cause_with_original_assoc_item_obligation<'tcx>( cause.span = impl_item_span; } } - ty::PredicateKind::Trait(pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { // An associated item obligation born out of the `trait` failed to be met. An example // can be seen in `ui/associated-types/point-at-type-on-obligation-failure-2.rs`. debug!("extended_cause_with_original_assoc_item_obligation trait proj {:?}", pred); @@ -561,9 +561,9 @@ impl<'tcx> WfPredicates<'tcx> { cause, depth, param_env, - ty::Binder::dummy(ty::PredicateKind::TypeOutlives( + ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::TypeOutlives( ty::OutlivesPredicate(rty, r), - )), + ))), )); } } @@ -866,19 +866,22 @@ pub(crate) fn required_region_bounds<'tcx>( .filter_map(|obligation| { debug!(?obligation); match obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Projection(..) - | ty::PredicateKind::Trait(..) + ty::PredicateKind::Clause(ty::Clause::Projection(..)) + | ty::PredicateKind::Clause(ty::Clause::Trait(..)) | ty::PredicateKind::Subtype(..) | ty::PredicateKind::Coerce(..) | ty::PredicateKind::WellFormed(..) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ClosureKind(..) - | ty::PredicateKind::RegionOutlives(..) + | ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) | ty::PredicateKind::ConstEvaluatable(..) | ty::PredicateKind::ConstEquate(..) | ty::PredicateKind::Ambiguous | ty::PredicateKind::TypeWellFormedFromEnv(..) => None, - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ref t, ref r)) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + ref t, + ref r, + ))) => { // Search for a bound of the form `erased_self_ty // : 'a`, but be wary of something like `for<'a> // erased_self_ty : 'a` (we interpret a diff --git a/compiler/rustc_traits/src/chalk/lowering.rs b/compiler/rustc_traits/src/chalk/lowering.rs index 9931a7f32ef..c4ab86e9e9b 100644 --- a/compiler/rustc_traits/src/chalk/lowering.rs +++ b/compiler/rustc_traits/src/chalk/lowering.rs @@ -89,24 +89,32 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::InEnvironment<chalk_ir::Goal<RustInterner<' ty::PredicateKind::TypeWellFormedFromEnv(ty) => { chalk_ir::DomainGoal::FromEnv(chalk_ir::FromEnv::Ty(ty.lower_into(interner))) } - ty::PredicateKind::Trait(predicate) => chalk_ir::DomainGoal::FromEnv( - chalk_ir::FromEnv::Trait(predicate.trait_ref.lower_into(interner)), - ), - ty::PredicateKind::RegionOutlives(predicate) => chalk_ir::DomainGoal::Holds( - chalk_ir::WhereClause::LifetimeOutlives(chalk_ir::LifetimeOutlives { - a: predicate.0.lower_into(interner), - b: predicate.1.lower_into(interner), - }), - ), - ty::PredicateKind::TypeOutlives(predicate) => chalk_ir::DomainGoal::Holds( - chalk_ir::WhereClause::TypeOutlives(chalk_ir::TypeOutlives { - ty: predicate.0.lower_into(interner), - lifetime: predicate.1.lower_into(interner), - }), - ), - ty::PredicateKind::Projection(predicate) => chalk_ir::DomainGoal::Holds( - chalk_ir::WhereClause::AliasEq(predicate.lower_into(interner)), - ), + ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => { + chalk_ir::DomainGoal::FromEnv(chalk_ir::FromEnv::Trait( + predicate.trait_ref.lower_into(interner), + )) + } + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => { + chalk_ir::DomainGoal::Holds(chalk_ir::WhereClause::LifetimeOutlives( + chalk_ir::LifetimeOutlives { + a: predicate.0.lower_into(interner), + b: predicate.1.lower_into(interner), + }, + )) + } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => { + chalk_ir::DomainGoal::Holds(chalk_ir::WhereClause::TypeOutlives( + chalk_ir::TypeOutlives { + ty: predicate.0.lower_into(interner), + lifetime: predicate.1.lower_into(interner), + }, + )) + } + ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => { + chalk_ir::DomainGoal::Holds(chalk_ir::WhereClause::AliasEq( + predicate.lower_into(interner), + )) + } ty::PredicateKind::WellFormed(arg) => match arg.unpack() { ty::GenericArgKind::Type(ty) => chalk_ir::DomainGoal::WellFormed( chalk_ir::WellFormed::Ty(ty.lower_into(interner)), @@ -149,12 +157,12 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::GoalData<RustInterner<'tcx>>> for ty::Predi collect_bound_vars(interner, interner.tcx, self.kind()); let value = match predicate { - ty::PredicateKind::Trait(predicate) => { + ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => { chalk_ir::GoalData::DomainGoal(chalk_ir::DomainGoal::Holds( chalk_ir::WhereClause::Implemented(predicate.trait_ref.lower_into(interner)), )) } - ty::PredicateKind::RegionOutlives(predicate) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => { chalk_ir::GoalData::DomainGoal(chalk_ir::DomainGoal::Holds( chalk_ir::WhereClause::LifetimeOutlives(chalk_ir::LifetimeOutlives { a: predicate.0.lower_into(interner), @@ -162,7 +170,7 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::GoalData<RustInterner<'tcx>>> for ty::Predi }), )) } - ty::PredicateKind::TypeOutlives(predicate) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => { chalk_ir::GoalData::DomainGoal(chalk_ir::DomainGoal::Holds( chalk_ir::WhereClause::TypeOutlives(chalk_ir::TypeOutlives { ty: predicate.0.lower_into(interner), @@ -170,7 +178,7 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::GoalData<RustInterner<'tcx>>> for ty::Predi }), )) } - ty::PredicateKind::Projection(predicate) => { + ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => { chalk_ir::GoalData::DomainGoal(chalk_ir::DomainGoal::Holds( chalk_ir::WhereClause::AliasEq(predicate.lower_into(interner)), )) @@ -605,22 +613,22 @@ impl<'tcx> LowerInto<'tcx, Option<chalk_ir::QuantifiedWhereClause<RustInterner<' let (predicate, binders, _named_regions) = collect_bound_vars(interner, interner.tcx, self.kind()); let value = match predicate { - ty::PredicateKind::Trait(predicate) => { + ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => { Some(chalk_ir::WhereClause::Implemented(predicate.trait_ref.lower_into(interner))) } - ty::PredicateKind::RegionOutlives(predicate) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(predicate)) => { Some(chalk_ir::WhereClause::LifetimeOutlives(chalk_ir::LifetimeOutlives { a: predicate.0.lower_into(interner), b: predicate.1.lower_into(interner), })) } - ty::PredicateKind::TypeOutlives(predicate) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(predicate)) => { Some(chalk_ir::WhereClause::TypeOutlives(chalk_ir::TypeOutlives { ty: predicate.0.lower_into(interner), lifetime: predicate.1.lower_into(interner), })) } - ty::PredicateKind::Projection(predicate) => { + ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => { Some(chalk_ir::WhereClause::AliasEq(predicate.lower_into(interner))) } ty::PredicateKind::WellFormed(_ty) => None, @@ -741,20 +749,24 @@ impl<'tcx> LowerInto<'tcx, Option<chalk_solve::rust_ir::QuantifiedInlineBound<Ru let (predicate, binders, _named_regions) = collect_bound_vars(interner, interner.tcx, self.kind()); match predicate { - ty::PredicateKind::Trait(predicate) => Some(chalk_ir::Binders::new( - binders, - chalk_solve::rust_ir::InlineBound::TraitBound( - predicate.trait_ref.lower_into(interner), - ), - )), - ty::PredicateKind::Projection(predicate) => Some(chalk_ir::Binders::new( - binders, - chalk_solve::rust_ir::InlineBound::AliasEqBound(predicate.lower_into(interner)), - )), - ty::PredicateKind::TypeOutlives(_predicate) => None, + ty::PredicateKind::Clause(ty::Clause::Trait(predicate)) => { + Some(chalk_ir::Binders::new( + binders, + chalk_solve::rust_ir::InlineBound::TraitBound( + predicate.trait_ref.lower_into(interner), + ), + )) + } + ty::PredicateKind::Clause(ty::Clause::Projection(predicate)) => { + Some(chalk_ir::Binders::new( + binders, + chalk_solve::rust_ir::InlineBound::AliasEqBound(predicate.lower_into(interner)), + )) + } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(_predicate)) => None, ty::PredicateKind::WellFormed(_ty) => None, - ty::PredicateKind::RegionOutlives(..) + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ClosureKind(..) | ty::PredicateKind::Subtype(..) diff --git a/compiler/rustc_traits/src/implied_outlives_bounds.rs b/compiler/rustc_traits/src/implied_outlives_bounds.rs index 3ab353c9638..010233d7718 100644 --- a/compiler/rustc_traits/src/implied_outlives_bounds.rs +++ b/compiler/rustc_traits/src/implied_outlives_bounds.rs @@ -86,10 +86,10 @@ fn compute_implied_outlives_bounds<'tcx>( match obligation.predicate.kind().no_bound_vars() { None => None, Some(pred) => match pred { - ty::PredicateKind::Trait(..) + ty::PredicateKind::Clause(ty::Clause::Trait(..)) | ty::PredicateKind::Subtype(..) | ty::PredicateKind::Coerce(..) - | ty::PredicateKind::Projection(..) + | ty::PredicateKind::Clause(ty::Clause::Projection(..)) | ty::PredicateKind::ClosureKind(..) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ConstEvaluatable(..) @@ -101,13 +101,14 @@ fn compute_implied_outlives_bounds<'tcx>( None } - ty::PredicateKind::RegionOutlives(ty::OutlivesPredicate(r_a, r_b)) => { - Some(ty::OutlivesPredicate(r_a.into(), r_b)) - } + ty::PredicateKind::Clause(ty::Clause::RegionOutlives( + ty::OutlivesPredicate(r_a, r_b), + )) => Some(ty::OutlivesPredicate(r_a.into(), r_b)), - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty_a, r_b)) => { - Some(ty::OutlivesPredicate(ty_a.into(), r_b)) - } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + ty_a, + r_b, + ))) => Some(ty::OutlivesPredicate(ty_a.into(), r_b)), }, } })); diff --git a/compiler/rustc_traits/src/normalize_erasing_regions.rs b/compiler/rustc_traits/src/normalize_erasing_regions.rs index 5200908527a..bd22d113b40 100644 --- a/compiler/rustc_traits/src/normalize_erasing_regions.rs +++ b/compiler/rustc_traits/src/normalize_erasing_regions.rs @@ -56,9 +56,10 @@ fn try_normalize_after_erasing_regions<'tcx, T: TypeFoldable<'tcx> + PartialEq + fn not_outlives_predicate<'tcx>(p: ty::Predicate<'tcx>) -> bool { match p.kind().skip_binder() { - ty::PredicateKind::RegionOutlives(..) | ty::PredicateKind::TypeOutlives(..) => false, - ty::PredicateKind::Trait(..) - | ty::PredicateKind::Projection(..) + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(..)) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..)) => false, + ty::PredicateKind::Clause(ty::Clause::Trait(..)) + | ty::PredicateKind::Clause(ty::Clause::Projection(..)) | ty::PredicateKind::WellFormed(..) | ty::PredicateKind::ObjectSafe(..) | ty::PredicateKind::ClosureKind(..) diff --git a/src/librustdoc/clean/auto_trait.rs b/src/librustdoc/clean/auto_trait.rs index 05607d05ecf..953f4aa8a1b 100644 --- a/src/librustdoc/clean/auto_trait.rs +++ b/src/librustdoc/clean/auto_trait.rs @@ -321,10 +321,10 @@ where let bound_predicate = pred.kind(); let tcx = self.cx.tcx; let regions = match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(poly_trait_pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(poly_trait_pred)) => { tcx.collect_referenced_late_bound_regions(&bound_predicate.rebind(poly_trait_pred)) } - ty::PredicateKind::Projection(poly_proj_pred) => { + ty::PredicateKind::Clause(ty::Clause::Projection(poly_proj_pred)) => { tcx.collect_referenced_late_bound_regions(&bound_predicate.rebind(poly_proj_pred)) } _ => return FxHashSet::default(), @@ -451,7 +451,9 @@ where .filter(|p| { !orig_bounds.contains(p) || match p.kind().skip_binder() { - ty::PredicateKind::Trait(pred) => pred.def_id() == sized_trait, + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { + pred.def_id() == sized_trait + } _ => false, } }) diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index b5d4ab55b4a..b0927305eca 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -302,12 +302,16 @@ pub(crate) fn clean_predicate<'tcx>( ) -> Option<WherePredicate> { let bound_predicate = predicate.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { clean_poly_trait_predicate(bound_predicate.rebind(pred), cx) } - ty::PredicateKind::RegionOutlives(pred) => clean_region_outlives_predicate(pred), - ty::PredicateKind::TypeOutlives(pred) => clean_type_outlives_predicate(pred, cx), - ty::PredicateKind::Projection(pred) => { + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(pred)) => { + clean_region_outlives_predicate(pred) + } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(pred)) => { + clean_type_outlives_predicate(pred, cx) + } + ty::PredicateKind::Clause(ty::Clause::Projection(pred)) => { Some(clean_projection_predicate(bound_predicate.rebind(pred), cx)) } ty::PredicateKind::ConstEvaluatable(..) => None, @@ -689,17 +693,20 @@ fn clean_ty_generics<'tcx>( let param_idx = (|| { let bound_p = p.kind(); match bound_p.skip_binder() { - ty::PredicateKind::Trait(pred) => { + ty::PredicateKind::Clause(ty::Clause::Trait(pred)) => { if let ty::Param(param) = pred.self_ty().kind() { return Some(param.index); } } - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(ty, _reg)) => { + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + ty, + _reg, + ))) => { if let ty::Param(param) = ty.kind() { return Some(param.index); } } - ty::PredicateKind::Projection(p) => { + ty::PredicateKind::Clause(ty::Clause::Projection(p)) => { if let ty::Param(param) = p.projection_ty.self_ty().kind() { projection = Some(bound_p.rebind(p)); return Some(param.index); @@ -1772,8 +1779,13 @@ fn clean_middle_opaque_bounds<'tcx>( .filter_map(|bound| { let bound_predicate = bound.kind(); let trait_ref = match bound_predicate.skip_binder() { - ty::PredicateKind::Trait(tr) => bound_predicate.rebind(tr.trait_ref), - ty::PredicateKind::TypeOutlives(ty::OutlivesPredicate(_ty, reg)) => { + ty::PredicateKind::Clause(ty::Clause::Trait(tr)) => { + bound_predicate.rebind(tr.trait_ref) + } + ty::PredicateKind::Clause(ty::Clause::TypeOutlives(ty::OutlivesPredicate( + _ty, + reg, + ))) => { if let Some(r) = clean_middle_region(reg) { regions.push(GenericBound::Outlives(r)); } @@ -1792,7 +1804,9 @@ fn clean_middle_opaque_bounds<'tcx>( let bindings: ThinVec<_> = bounds .iter() .filter_map(|bound| { - if let ty::PredicateKind::Projection(proj) = bound.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = + bound.kind().skip_binder() + { if proj.projection_ty.trait_ref(cx.tcx) == trait_ref.skip_binder() { Some(TypeBinding { assoc: projection_to_path_segment(proj.projection_ty, cx), diff --git a/src/librustdoc/clean/simplify.rs b/src/librustdoc/clean/simplify.rs index 7d97d2994e4..e96a9bab726 100644 --- a/src/librustdoc/clean/simplify.rs +++ b/src/librustdoc/clean/simplify.rs @@ -132,7 +132,7 @@ fn trait_is_same_or_supertrait(cx: &DocContext<'_>, child: DefId, trait_: DefId) .predicates .iter() .filter_map(|(pred, _)| { - if let ty::PredicateKind::Trait(pred) = pred.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Trait(pred)) = pred.kind().skip_binder() { if pred.trait_ref.self_ty() == self_ty { Some(pred.def_id()) } else { None } } else { None diff --git a/src/tools/clippy/clippy_lints/src/dereference.rs b/src/tools/clippy/clippy_lints/src/dereference.rs index 18e742a85b3..47ea98956be 100644 --- a/src/tools/clippy/clippy_lints/src/dereference.rs +++ b/src/tools/clippy/clippy_lints/src/dereference.rs @@ -25,7 +25,7 @@ use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::mir::{Rvalue, StatementKind}; use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow, AutoBorrowMutability}; use rustc_middle::ty::{ - self, Binder, BoundVariableKind, EarlyBinder, FnSig, GenericArgKind, List, ParamTy, PredicateKind, + self, Binder, BoundVariableKind, Clause, EarlyBinder, FnSig, GenericArgKind, List, ParamTy, PredicateKind, ProjectionPredicate, Ty, TyCtxt, TypeVisitable, TypeckResults, }; use rustc_semver::RustcVersion; @@ -1097,7 +1097,7 @@ fn needless_borrow_impl_arg_position<'tcx>( let projection_predicates = predicates .iter() .filter_map(|predicate| { - if let PredicateKind::Projection(projection_predicate) = predicate.kind().skip_binder() { + if let PredicateKind::Clause(Clause::Projection(projection_predicate)) = predicate.kind().skip_binder() { Some(projection_predicate) } else { None @@ -1111,7 +1111,7 @@ fn needless_borrow_impl_arg_position<'tcx>( if predicates .iter() .filter_map(|predicate| { - if let PredicateKind::Trait(trait_predicate) = predicate.kind().skip_binder() + if let PredicateKind::Clause(Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() && trait_predicate.trait_ref.self_ty() == param_ty.to_ty(cx.tcx) { Some(trait_predicate.trait_ref.def_id) @@ -1173,7 +1173,7 @@ fn needless_borrow_impl_arg_position<'tcx>( } predicates.iter().all(|predicate| { - if let PredicateKind::Trait(trait_predicate) = predicate.kind().skip_binder() + if let PredicateKind::Clause(Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() && cx.tcx.is_diagnostic_item(sym::IntoIterator, trait_predicate.trait_ref.def_id) && let ty::Param(param_ty) = trait_predicate.self_ty().kind() && let GenericArgKind::Type(ty) = substs_with_referent_ty[param_ty.index as usize].unpack() diff --git a/src/tools/clippy/clippy_lints/src/derive.rs b/src/tools/clippy/clippy_lints/src/derive.rs index 1d9af7cdbd3..d870e0ceef4 100644 --- a/src/tools/clippy/clippy_lints/src/derive.rs +++ b/src/tools/clippy/clippy_lints/src/derive.rs @@ -14,7 +14,7 @@ use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::hir::nested_filter; use rustc_middle::traits::Reveal; use rustc_middle::ty::{ - self, Binder, BoundConstness, GenericParamDefKind, ImplPolarity, ParamEnv, PredicateKind, TraitPredicate, TraitRef, + self, Binder, BoundConstness, Clause, GenericParamDefKind, ImplPolarity, ParamEnv, PredicateKind, TraitPredicate, TraitRef, Ty, TyCtxt, }; use rustc_session::{declare_lint_pass, declare_tool_lint}; @@ -499,7 +499,7 @@ fn param_env_for_derived_eq(tcx: TyCtxt<'_>, did: DefId, eq_trait_id: DefId) -> let ty_predicates = tcx.predicates_of(did).predicates; for (p, _) in ty_predicates { - if let PredicateKind::Trait(p) = p.kind().skip_binder() + if let PredicateKind::Clause(Clause::Trait(p)) = p.kind().skip_binder() && p.trait_ref.def_id == eq_trait_id && let ty::Param(self_ty) = p.trait_ref.self_ty().kind() && p.constness == BoundConstness::NotConst @@ -512,14 +512,14 @@ fn param_env_for_derived_eq(tcx: TyCtxt<'_>, did: DefId, eq_trait_id: DefId) -> ParamEnv::new( tcx.mk_predicates(ty_predicates.iter().map(|&(p, _)| p).chain( params.iter().filter(|&&(_, needs_eq)| needs_eq).map(|&(param, _)| { - tcx.mk_predicate(Binder::dummy(PredicateKind::Trait(TraitPredicate { + tcx.mk_predicate(Binder::dummy(PredicateKind::Clause(Clause::Trait(TraitPredicate { trait_ref: TraitRef::new( eq_trait_id, tcx.mk_substs(std::iter::once(tcx.mk_param_from_def(param))), ), constness: BoundConstness::NotConst, polarity: ImplPolarity::Positive, - }))) + })))) }), )), Reveal::UserFacing, diff --git a/src/tools/clippy/clippy_lints/src/future_not_send.rs b/src/tools/clippy/clippy_lints/src/future_not_send.rs index 0519f9ac246..a9425a40f88 100644 --- a/src/tools/clippy/clippy_lints/src/future_not_send.rs +++ b/src/tools/clippy/clippy_lints/src/future_not_send.rs @@ -4,7 +4,7 @@ use rustc_hir::intravisit::FnKind; use rustc_hir::{Body, FnDecl, HirId}; use rustc_infer::infer::TyCtxtInferExt; use rustc_lint::{LateContext, LateLintPass}; -use rustc_middle::ty::{EarlyBinder, Opaque, PredicateKind::Trait}; +use rustc_middle::ty::{Clause, EarlyBinder, Opaque, PredicateKind}; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::{sym, Span}; use rustc_trait_selection::traits::error_reporting::suggestions::TypeErrCtxtExt; @@ -91,7 +91,7 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend { infcx .err_ctxt() .maybe_note_obligation_cause_for_async_await(db, &obligation); - if let Trait(trait_pred) = obligation.predicate.kind().skip_binder() { + if let PredicateKind::Clause(Clause::Trait(trait_pred)) = obligation.predicate.kind().skip_binder() { db.note(&format!( "`{}` doesn't implement `{}`", trait_pred.self_ty(), diff --git a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs index 8b000cd754c..7ff13b95626 100644 --- a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs +++ b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs @@ -17,7 +17,7 @@ use rustc_middle::mir::Mutability; use rustc_middle::ty::adjustment::{Adjust, Adjustment, OverloadedDeref}; use rustc_middle::ty::subst::{GenericArg, GenericArgKind, SubstsRef}; use rustc_middle::ty::EarlyBinder; -use rustc_middle::ty::{self, ParamTy, PredicateKind, ProjectionPredicate, TraitPredicate, Ty}; +use rustc_middle::ty::{self, Clause, ParamTy, PredicateKind, ProjectionPredicate, TraitPredicate, Ty}; use rustc_semver::RustcVersion; use rustc_span::{sym, Symbol}; use rustc_trait_selection::traits::{ @@ -341,12 +341,12 @@ fn get_input_traits_and_projections<'tcx>( let mut projection_predicates = Vec::new(); for predicate in cx.tcx.param_env(callee_def_id).caller_bounds() { match predicate.kind().skip_binder() { - PredicateKind::Trait(trait_predicate) => { + PredicateKind::Clause(Clause::Trait(trait_predicate)) => { if trait_predicate.trait_ref.self_ty() == input { trait_predicates.push(trait_predicate); } } - PredicateKind::Projection(projection_predicate) => { + PredicateKind::Clause(Clause::Projection(projection_predicate)) => { if projection_predicate.projection_ty.self_ty() == input { projection_predicates.push(projection_predicate); } @@ -403,7 +403,7 @@ fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty< let mut trait_predicates = cx.tcx.param_env(callee_def_id) .caller_bounds().iter().filter(|predicate| { - if let PredicateKind::Trait(trait_predicate) = predicate.kind().skip_binder() + if let PredicateKind::Clause(Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() && trait_predicate.trait_ref.self_ty() == *param_ty { true } else { diff --git a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs index 55599cd03eb..75e12715458 100644 --- a/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs +++ b/src/tools/clippy/clippy_lints/src/needless_pass_by_value.rs @@ -124,7 +124,7 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue { .filter_map(|obligation| { // Note that we do not want to deal with qualified predicates here. match obligation.predicate.kind().no_bound_vars() { - Some(ty::PredicateKind::Trait(pred)) if pred.def_id() != sized_trait => Some(pred), + Some(ty::PredicateKind::Clause(ty::Clause::Trait(pred))) if pred.def_id() != sized_trait => Some(pred), _ => None, } }) diff --git a/src/tools/clippy/clippy_lints/src/ptr.rs b/src/tools/clippy/clippy_lints/src/ptr.rs index 8c4cff66f55..d28e97b7943 100644 --- a/src/tools/clippy/clippy_lints/src/ptr.rs +++ b/src/tools/clippy/clippy_lints/src/ptr.rs @@ -19,7 +19,7 @@ use rustc_infer::infer::TyCtxtInferExt; use rustc_infer::traits::{Obligation, ObligationCause}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::hir::nested_filter; -use rustc_middle::ty::{self, Binder, ExistentialPredicate, List, PredicateKind, Ty}; +use rustc_middle::ty::{self, Binder, Clause, ExistentialPredicate, List, PredicateKind, Ty}; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::source_map::Span; use rustc_span::sym; @@ -699,7 +699,7 @@ fn matches_preds<'tcx>( ObligationCause::dummy(), cx.param_env, cx.tcx.mk_predicate(Binder::dummy( - PredicateKind::Projection(p.with_self_ty(cx.tcx, ty)), + PredicateKind::Clause(Clause::Projection(p.with_self_ty(cx.tcx, ty))), )), )), ExistentialPredicate::AutoTrait(p) => infcx diff --git a/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs b/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs index 1307288623f..a138a4baa9b 100644 --- a/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs +++ b/src/tools/clippy/clippy_lints/src/unit_return_expecting_ord.rs @@ -4,7 +4,7 @@ use rustc_hir::def_id::DefId; use rustc_hir::{Closure, Expr, ExprKind, StmtKind}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty; -use rustc_middle::ty::{GenericPredicates, PredicateKind, ProjectionPredicate, TraitPredicate}; +use rustc_middle::ty::{Clause, GenericPredicates, PredicateKind, ProjectionPredicate, TraitPredicate}; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::{sym, BytePos, Span}; @@ -45,7 +45,7 @@ fn get_trait_predicates_for_trait_id<'tcx>( let mut preds = Vec::new(); for (pred, _) in generics.predicates { if_chain! { - if let PredicateKind::Trait(poly_trait_pred) = pred.kind().skip_binder(); + if let PredicateKind::Clause(Clause::Trait(poly_trait_pred)) = pred.kind().skip_binder(); let trait_pred = cx.tcx.erase_late_bound_regions(pred.kind().rebind(poly_trait_pred)); if let Some(trait_def_id) = trait_id; if trait_def_id == trait_pred.trait_ref.def_id; @@ -63,7 +63,7 @@ fn get_projection_pred<'tcx>( trait_pred: TraitPredicate<'tcx>, ) -> Option<ProjectionPredicate<'tcx>> { generics.predicates.iter().find_map(|(proj_pred, _)| { - if let ty::PredicateKind::Projection(pred) = proj_pred.kind().skip_binder() { + if let ty::PredicateKind::Clause(Clause::Projection(pred)) = proj_pred.kind().skip_binder() { let projection_pred = cx.tcx.erase_late_bound_regions(proj_pred.kind().rebind(pred)); if projection_pred.projection_ty.substs == trait_pred.trait_ref.substs { return Some(projection_pred); diff --git a/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs b/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs index 95b3e651e2b..f74f7dadfa9 100644 --- a/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs +++ b/src/tools/clippy/clippy_utils/src/eager_or_lazy.rs @@ -73,7 +73,7 @@ fn fn_eagerness(cx: &LateContext<'_>, fn_id: DefId, name: Symbol, have_one_arg: .flat_map(|v| v.fields.iter()) .any(|x| matches!(cx.tcx.type_of(x.did).peel_refs().kind(), ty::Param(_))) && all_predicates_of(cx.tcx, fn_id).all(|(pred, _)| match pred.kind().skip_binder() { - PredicateKind::Trait(pred) => cx.tcx.trait_def(pred.trait_ref.def_id).is_marker, + PredicateKind::Clause(ty::Clause::Trait(pred)) => cx.tcx.trait_def(pred.trait_ref.def_id).is_marker, _ => true, }) && subs.types().all(|x| matches!(x.peel_refs().kind(), ty::Param(_))) diff --git a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs index d183e28f667..b8c2dd5ab9e 100644 --- a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs +++ b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs @@ -25,13 +25,13 @@ pub fn is_min_const_fn<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>, msrv: Option< let predicates = tcx.predicates_of(current); for (predicate, _) in predicates.predicates { match predicate.kind().skip_binder() { - ty::PredicateKind::RegionOutlives(_) - | ty::PredicateKind::TypeOutlives(_) + ty::PredicateKind::Clause(ty::Clause::RegionOutlives(_)) + | ty::PredicateKind::Clause(ty::Clause::TypeOutlives(_)) | ty::PredicateKind::WellFormed(_) - | ty::PredicateKind::Projection(_) + | ty::PredicateKind::Clause(ty::Clause::Projection(_)) | ty::PredicateKind::ConstEvaluatable(..) | ty::PredicateKind::ConstEquate(..) - | ty::PredicateKind::Trait(..) + | ty::PredicateKind::Clause(ty::Clause::Trait(..)) | ty::PredicateKind::TypeWellFormedFromEnv(..) => continue, ty::PredicateKind::ObjectSafe(_) => panic!("object safe predicate on function: {predicate:#?}"), ty::PredicateKind::ClosureKind(..) => panic!("closure kind predicate on function: {predicate:#?}"), diff --git a/src/tools/clippy/clippy_utils/src/ty.rs b/src/tools/clippy/clippy_utils/src/ty.rs index 8284dc5c28c..f4459e3e663 100644 --- a/src/tools/clippy/clippy_utils/src/ty.rs +++ b/src/tools/clippy/clippy_utils/src/ty.rs @@ -81,7 +81,7 @@ pub fn contains_ty_adt_constructor_opaque<'tcx>(cx: &LateContext<'tcx>, ty: Ty<' match predicate.kind().skip_binder() { // For `impl Trait<U>`, it will register a predicate of `T: Trait<U>`, so we go through // and check substituions to find `U`. - ty::PredicateKind::Trait(trait_predicate) => { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => { if trait_predicate .trait_ref .substs @@ -94,7 +94,7 @@ pub fn contains_ty_adt_constructor_opaque<'tcx>(cx: &LateContext<'tcx>, ty: Ty<' }, // For `impl Trait<Assoc=U>`, it will register a predicate of `<T as Trait>::Assoc = U`, // so we check the term for `U`. - ty::PredicateKind::Projection(projection_predicate) => { + ty::PredicateKind::Clause(ty::Clause::Projection(projection_predicate)) => { if let ty::TermKind::Ty(ty) = projection_predicate.term.unpack() { if contains_ty_adt_constructor_opaque(cx, ty, needle) { return true; @@ -239,7 +239,7 @@ pub fn is_must_use_ty<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool { ty::Tuple(substs) => substs.iter().any(|ty| is_must_use_ty(cx, ty)), ty::Opaque(def_id, _) => { for (predicate, _) in cx.tcx.explicit_item_bounds(*def_id) { - if let ty::PredicateKind::Trait(trait_predicate) = predicate.kind().skip_binder() { + if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() { if cx.tcx.has_attr(trait_predicate.trait_ref.def_id, sym::must_use) { return true; } @@ -658,7 +658,7 @@ fn sig_from_bounds<'tcx>( for pred in predicates { match pred.kind().skip_binder() { - PredicateKind::Trait(p) + PredicateKind::Clause(ty::Clause::Trait(p)) if (lang_items.fn_trait() == Some(p.def_id()) || lang_items.fn_mut_trait() == Some(p.def_id()) || lang_items.fn_once_trait() == Some(p.def_id())) @@ -671,7 +671,7 @@ fn sig_from_bounds<'tcx>( } inputs = Some(i); }, - PredicateKind::Projection(p) + PredicateKind::Clause(ty::Clause::Projection(p)) if Some(p.projection_ty.item_def_id) == lang_items.fn_once_output() && p.projection_ty.self_ty() == ty => { @@ -699,7 +699,7 @@ fn sig_for_projection<'tcx>(cx: &LateContext<'tcx>, ty: ProjectionTy<'tcx>) -> O .subst_iter_copied(cx.tcx, ty.substs) { match pred.kind().skip_binder() { - PredicateKind::Trait(p) + PredicateKind::Clause(ty::Clause::Trait(p)) if (lang_items.fn_trait() == Some(p.def_id()) || lang_items.fn_mut_trait() == Some(p.def_id()) || lang_items.fn_once_trait() == Some(p.def_id())) => @@ -712,7 +712,7 @@ fn sig_for_projection<'tcx>(cx: &LateContext<'tcx>, ty: ProjectionTy<'tcx>) -> O } inputs = Some(i); }, - PredicateKind::Projection(p) if Some(p.projection_ty.item_def_id) == lang_items.fn_once_output() => { + PredicateKind::Clause(ty::Clause::Projection(p)) if Some(p.projection_ty.item_def_id) == lang_items.fn_once_output() => { if output.is_some() { // Multiple different fn trait impls. Is this even allowed? return None; @@ -887,7 +887,7 @@ pub fn ty_is_fn_once_param<'tcx>(tcx: TyCtxt<'_>, ty: Ty<'tcx>, predicates: &'tc predicates .iter() .try_fold(false, |found, p| { - if let PredicateKind::Trait(p) = p.kind().skip_binder() + if let PredicateKind::Clause(ty::Clause::Trait(p)) = p.kind().skip_binder() && let ty::Param(self_ty) = p.trait_ref.self_ty().kind() && ty.index == self_ty.index { |