From 091239ee6081d266ae59cc0660cc177994eba8d0 Mon Sep 17 00:00:00 2001
From: Bastian Kauschke <bastian_kauschke@hotmail.de>
Date: Mon, 11 May 2020 22:06:41 +0200
Subject: [PATCH] introduce newtype'd `Predicate<'tcx>`

---
 clippy_lints/src/future_not_send.rs        | 2 +-
 clippy_lints/src/methods/mod.rs            | 6 +++---
 clippy_lints/src/needless_pass_by_value.rs | 2 +-
 clippy_lints/src/utils/mod.rs              | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/clippy_lints/src/future_not_send.rs b/clippy_lints/src/future_not_send.rs
index 2c2965433fd0..0a02aa7533c1 100644
--- a/clippy_lints/src/future_not_send.rs
+++ b/clippy_lints/src/future_not_send.rs
@@ -91,7 +91,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for FutureNotSend {
                             cx.tcx.infer_ctxt().enter(|infcx| {
                                 for FulfillmentError { obligation, .. } in send_errors {
                                     infcx.maybe_note_obligation_cause_for_async_await(db, &obligation);
-                                    if let Trait(trait_pred, _) = obligation.predicate {
+                                    if let Trait(trait_pred, _) = obligation.predicate.kind() {
                                         let trait_ref = trait_pred.to_poly_trait_ref();
                                         db.note(&*format!(
                                             "`{}` doesn't implement `{}`",
diff --git a/clippy_lints/src/methods/mod.rs b/clippy_lints/src/methods/mod.rs
index 79c21d9bc0a6..810a226b50d2 100644
--- a/clippy_lints/src/methods/mod.rs
+++ b/clippy_lints/src/methods/mod.rs
@@ -1496,8 +1496,8 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Methods {
             if let ty::Opaque(def_id, _) = ret_ty.kind {
                 // one of the associated types must be Self
                 for predicate in cx.tcx.predicates_of(def_id).predicates {
-                    match predicate {
-                        (ty::PredicateKind::Projection(poly_projection_predicate), _) => {
+                    match predicate.0.kind() {
+                        ty::PredicateKind::Projection(poly_projection_predicate) => {
                             let binder = poly_projection_predicate.ty();
                             let associated_type = binder.skip_binder();
 
@@ -1506,7 +1506,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Methods {
                                 return;
                             }
                         },
-                        (_, _) => {},
+                        _ => {},
                     }
                 }
             }
diff --git a/clippy_lints/src/needless_pass_by_value.rs b/clippy_lints/src/needless_pass_by_value.rs
index 8f94f143bae7..60c536005433 100644
--- a/clippy_lints/src/needless_pass_by_value.rs
+++ b/clippy_lints/src/needless_pass_by_value.rs
@@ -114,7 +114,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessPassByValue {
         let preds = traits::elaborate_predicates(cx.tcx, cx.param_env.caller_bounds.iter().copied())
             .filter(|p| !p.is_global())
             .filter_map(|obligation| {
-                if let ty::PredicateKind::Trait(poly_trait_ref, _) = obligation.predicate {
+                if let ty::PredicateKind::Trait(poly_trait_ref, _) = obligation.predicate.kind() {
                     if poly_trait_ref.def_id() == sized_trait || poly_trait_ref.skip_binder().has_escaping_bound_vars()
                     {
                         return None;
diff --git a/clippy_lints/src/utils/mod.rs b/clippy_lints/src/utils/mod.rs
index 3f5693d7e680..f22473275c46 100644
--- a/clippy_lints/src/utils/mod.rs
+++ b/clippy_lints/src/utils/mod.rs
@@ -1299,7 +1299,7 @@ pub fn is_must_use_ty<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: Ty<'tcx>) -> boo
         ty::Tuple(ref substs) => substs.types().any(|ty| is_must_use_ty(cx, ty)),
         ty::Opaque(ref def_id, _) => {
             for (predicate, _) in cx.tcx.predicates_of(*def_id).predicates {
-                if let ty::PredicateKind::Trait(ref poly_trait_predicate, _) = predicate {
+                if let ty::PredicateKind::Trait(ref poly_trait_predicate, _) = predicate.kind() {
                     if must_use_attr(&cx.tcx.get_attrs(poly_trait_predicate.skip_binder().trait_ref.def_id)).is_some() {
                         return true;
                     }