Migrate predicates_of and caller_bounds to Clause

6 files changed, 20 insertions, 20 deletions

diff --git a/clippy_lints/src/dereference.rs b/clippy_lints/src/dereference.rs
index ee6aef71980..1ecaa1a123c 100644
--- a/clippy_lints/src/dereference.rs
+++ b/clippy_lints/src/dereference.rs
@@ -27,7 +27,7 @@ use rustc_middle::mir::{Rvalue, StatementKind};
 use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow, AutoBorrowMutability};
 use rustc_middle::ty::{
     self, Binder, BoundVariableKind, ClauseKind, EarlyBinder, FnSig, GenericArgKind, List, ParamEnv, ParamTy,
-    PredicateKind, ProjectionPredicate, Ty, TyCtxt, TypeVisitableExt, TypeckResults,
+    ProjectionPredicate, Ty, TyCtxt, TypeVisitableExt, TypeckResults,
 };
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::{symbol::sym, Span, Symbol};
@@ -1133,7 +1133,7 @@ fn needless_borrow_impl_arg_position<'tcx>(
     let projection_predicates = predicates
         .iter()
         .filter_map(|predicate| {
-            if let PredicateKind::Clause(ClauseKind::Projection(projection_predicate)) = predicate.kind().skip_binder() {
+            if let ClauseKind::Projection(projection_predicate) = predicate.kind().skip_binder() {
                 Some(projection_predicate)
             } else {
                 None
@@ -1147,7 +1147,7 @@ fn needless_borrow_impl_arg_position<'tcx>(
     if predicates
         .iter()
         .filter_map(|predicate| {
-            if let PredicateKind::Clause(ClauseKind::Trait(trait_predicate)) = predicate.kind().skip_binder()
+            if let ClauseKind::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)
@@ -1209,7 +1209,7 @@ fn needless_borrow_impl_arg_position<'tcx>(
         }
 
         predicates.iter().all(|predicate| {
-            if let PredicateKind::Clause(ClauseKind::Trait(trait_predicate)) = predicate.kind().skip_binder()
+            if let ClauseKind::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/clippy_lints/src/derive.rs b/clippy_lints/src/derive.rs
index 8d84e756ff8..10a2f0cb1e7 100644
--- a/clippy_lints/src/derive.rs
+++ b/clippy_lints/src/derive.rs
@@ -14,8 +14,8 @@ use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::hir::nested_filter;
 use rustc_middle::traits::Reveal;
 use rustc_middle::ty::{
-    self, Binder, BoundConstness, ClauseKind, GenericArgKind, GenericParamDefKind, ImplPolarity, ParamEnv, PredicateKind,
-    TraitPredicate, Ty, TyCtxt,
+    self, BoundConstness, ClauseKind, GenericArgKind, GenericParamDefKind, ImplPolarity, ParamEnv,
+    ToPredicate, TraitPredicate, Ty, TyCtxt,
 };
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::def_id::LocalDefId;
@@ -503,7 +503,7 @@ 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::Clause(ClauseKind::Trait(p)) = p.kind().skip_binder()
+        if let ClauseKind::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
@@ -514,13 +514,13 @@ fn param_env_for_derived_eq(tcx: TyCtxt<'_>, did: DefId, eq_trait_id: DefId) ->
     }
 
     ParamEnv::new(
-        tcx.mk_predicates_from_iter(ty_predicates.iter().map(|&(p, _)| p).chain(
+        tcx.mk_clauses_from_iter(ty_predicates.iter().map(|&(p, _)| p).chain(
             params.iter().filter(|&&(_, needs_eq)| needs_eq).map(|&(param, _)| {
-                tcx.mk_predicate(Binder::dummy(PredicateKind::Clause(ClauseKind::Trait(TraitPredicate {
+                ClauseKind::Trait(TraitPredicate {
                     trait_ref: ty::TraitRef::new(tcx, eq_trait_id, [tcx.mk_param_from_def(param)]),
                     constness: BoundConstness::NotConst,
                     polarity: ImplPolarity::Positive,
-                }))))
+                }).to_predicate(tcx)
             }),
         )),
         Reveal::UserFacing,
diff --git a/clippy_lints/src/methods/needless_collect.rs b/clippy_lints/src/methods/needless_collect.rs
index cf85d3174db..0699997d0d2 100644
--- a/clippy_lints/src/methods/needless_collect.rs
+++ b/clippy_lints/src/methods/needless_collect.rs
@@ -16,7 +16,7 @@ use rustc_hir::{
 };
 use rustc_lint::LateContext;
 use rustc_middle::hir::nested_filter;
-use rustc_middle::ty::{self, AssocKind, ClauseKind, EarlyBinder, GenericArg, GenericArgKind, PredicateKind, Ty};
+use rustc_middle::ty::{self, AssocKind, ClauseKind, EarlyBinder, GenericArg, GenericArgKind, Ty};
 use rustc_span::symbol::Ident;
 use rustc_span::{sym, Span, Symbol};
 
@@ -175,7 +175,7 @@ fn check_collect_into_intoiterator<'tcx>(
                 .caller_bounds()
                 .into_iter()
                 .filter_map(|p| {
-                    if let PredicateKind::Clause(ClauseKind::Trait(t)) = p.kind().skip_binder()
+                    if let ClauseKind::Trait(t) = p.kind().skip_binder()
                             && cx.tcx.is_diagnostic_item(sym::IntoIterator,t.trait_ref.def_id) {
                                 Some(t.self_ty())
                             } else {
diff --git a/clippy_lints/src/methods/unnecessary_to_owned.rs b/clippy_lints/src/methods/unnecessary_to_owned.rs
index 06fa95cd657..80eb00a1b42 100644
--- a/clippy_lints/src/methods/unnecessary_to_owned.rs
+++ b/clippy_lints/src/methods/unnecessary_to_owned.rs
@@ -14,7 +14,7 @@ use rustc_lint::LateContext;
 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::{self, ClauseKind, EarlyBinder, ParamTy, PredicateKind, ProjectionPredicate, TraitPredicate, Ty};
+use rustc_middle::ty::{self, ClauseKind, EarlyBinder, ParamTy, ProjectionPredicate, TraitPredicate, Ty};
 use rustc_span::{sym, Symbol};
 use rustc_trait_selection::traits::{query::evaluate_obligation::InferCtxtExt as _, Obligation, ObligationCause};
 
@@ -345,12 +345,12 @@ 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::Clause(ClauseKind::Trait(trait_predicate)) => {
+            ClauseKind::Trait(trait_predicate) => {
                 if trait_predicate.trait_ref.self_ty() == input {
                     trait_predicates.push(trait_predicate);
                 }
             },
-            PredicateKind::Clause(ClauseKind::Projection(projection_predicate)) => {
+            ClauseKind::Projection(projection_predicate) => {
                 if projection_predicate.projection_ty.self_ty() == input {
                     projection_predicates.push(projection_predicate);
                 }
@@ -407,7 +407,7 @@ 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::Clause(ClauseKind::Trait(trait_predicate))
+                            if let ClauseKind::Trait(trait_predicate)
                                     = predicate.kind().skip_binder()
                                 && trait_predicate.trait_ref.self_ty() == *param_ty
                             {
diff --git a/clippy_lints/src/needless_pass_by_value.rs b/clippy_lints/src/needless_pass_by_value.rs
index 3773975e955..c0970048cdf 100644
--- a/clippy_lints/src/needless_pass_by_value.rs
+++ b/clippy_lints/src/needless_pass_by_value.rs
@@ -126,7 +126,7 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
             .filter_map(|pred| {
                 // Note that we do not want to deal with qualified predicates here.
                 match pred.kind().no_bound_vars() {
-                    Some(ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred))) if pred.def_id() != sized_trait => {
+                    Some(ty::ClauseKind::Trait(pred)) if pred.def_id() != sized_trait => {
                         Some(pred)
                     },
                     _ => None,
diff --git a/clippy_lints/src/unit_return_expecting_ord.rs b/clippy_lints/src/unit_return_expecting_ord.rs
index a375e5d5b4c..99a1d197678 100644
--- a/clippy_lints/src/unit_return_expecting_ord.rs
+++ b/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::{ClauseKind, GenericPredicates, PredicateKind, ProjectionPredicate, TraitPredicate};
+use rustc_middle::ty::{ClauseKind, GenericPredicates, 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::Clause(ClauseKind::Trait(poly_trait_pred)) = pred.kind().skip_binder();
+            if let ClauseKind::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::Clause(ClauseKind::Projection(pred)) = proj_pred.kind().skip_binder() {
+        if let ClauseKind::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);