X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=clippy_lints%2Fsrc%2Fneedless_pass_by_value.rs;h=8c9d4c5cfe66fae84961b8ab9020b7313adc2bd3;hb=93d0f470640de319c9cad441509cfd0f55d84172;hp=060037ed496910f714e114d130bf25b9f0af1f93;hpb=42361da5d976297cf856de606916812390c298ca;p=rust.git

diff --git a/clippy_lints/src/needless_pass_by_value.rs b/clippy_lints/src/needless_pass_by_value.rs
index 060037ed496..8c9d4c5cfe6 100644
--- a/clippy_lints/src/needless_pass_by_value.rs
+++ b/clippy_lints/src/needless_pass_by_value.rs
@@ -1,7 +1,9 @@
 use clippy_utils::diagnostics::{multispan_sugg, span_lint_and_then};
 use clippy_utils::ptr::get_spans;
 use clippy_utils::source::{snippet, snippet_opt};
-use clippy_utils::ty::{implements_trait, is_copy, is_type_diagnostic_item};
+use clippy_utils::ty::{
+    implements_trait, implements_trait_with_env, is_copy, is_type_diagnostic_item, is_type_lang_item,
+};
 use clippy_utils::{get_trait_def_id, is_self, paths};
 use if_chain::if_chain;
 use rustc_ast::ast::Attribute;
@@ -11,7 +13,8 @@
 use rustc_hir::{
     BindingAnnotation, Body, FnDecl, GenericArg, HirId, Impl, ItemKind, Mutability, Node, PatKind, QPath, TyKind,
 };
-use rustc_hir::{HirIdMap, HirIdSet};
+use rustc_hir::{HirIdMap, HirIdSet, LangItem};
+use rustc_hir_typeck::expr_use_visitor as euv;
 use rustc_infer::infer::TyCtxtInferExt;
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::mir::FakeReadCause;
@@ -21,8 +24,7 @@
 use rustc_span::{sym, Span};
 use rustc_target::spec::abi::Abi;
 use rustc_trait_selection::traits;
-use rustc_trait_selection::traits::misc::can_type_implement_copy;
-use rustc_typeck::expr_use_visitor as euv;
+use rustc_trait_selection::traits::misc::type_allowed_to_implement_copy;
 use std::borrow::Cow;
 
 declare_clippy_lint! {
@@ -98,7 +100,7 @@ fn check_fn(
         }
 
         // Exclude non-inherent impls
-        if let Some(Node::Item(item)) = cx.tcx.hir().find(cx.tcx.hir().get_parent_node(hir_id)) {
+        if let Some(Node::Item(item)) = cx.tcx.hir().find_parent(hir_id) {
             if matches!(
                 item.kind,
                 ItemKind::Impl(Impl { of_trait: Some(_), .. }) | ItemKind::Trait(..)
@@ -124,7 +126,9 @@ fn check_fn(
             .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,
                 }
             })
@@ -138,10 +142,8 @@ fn check_fn(
             ..
         } = {
             let mut ctx = MovedVariablesCtxt::default();
-            cx.tcx.infer_ctxt().enter(|infcx| {
-                euv::ExprUseVisitor::new(&mut ctx, &infcx, fn_def_id, cx.param_env, cx.typeck_results())
-                    .consume_body(body);
-            });
+            let infcx = cx.tcx.infer_ctxt().build();
+            euv::ExprUseVisitor::new(&mut ctx, &infcx, fn_def_id, cx.param_env, cx.typeck_results()).consume_body(body);
             ctx
         };
 
@@ -186,7 +188,8 @@ fn check_fn(
                 if !is_self(arg);
                 if !ty.is_mutable_ptr();
                 if !is_copy(cx, ty);
-                if !allowed_traits.iter().any(|&t| implements_trait(cx, ty, t, &[]));
+                if ty.is_sized(cx.tcx, cx.param_env);
+                if !allowed_traits.iter().any(|&t| implements_trait_with_env(cx.tcx, cx.param_env, ty, t, [None]));
                 if !implements_borrow_trait;
                 if !all_borrowable_trait;
 
@@ -197,7 +200,7 @@ fn check_fn(
                     let sugg = |diag: &mut Diagnostic| {
                         if let ty::Adt(def, ..) = ty.kind() {
                             if let Some(span) = cx.tcx.hir().span_if_local(def.did()) {
-                                if can_type_implement_copy(
+                                if type_allowed_to_implement_copy(
                                     cx.tcx,
                                     cx.param_env,
                                     ty,
@@ -236,7 +239,7 @@ fn check_fn(
                                         snippet_opt(cx, span)
                                             .map_or(
                                                 "change the call to".into(),
-                                                |x| Cow::from(format!("change `{}` to", x)),
+                                                |x| Cow::from(format!("change `{x}` to")),
                                             )
                                             .as_ref(),
                                         suggestion,
@@ -250,7 +253,7 @@ fn check_fn(
                             }
                         }
 
-                        if is_type_diagnostic_item(cx, ty, sym::String) {
+                        if is_type_lang_item(cx, ty, LangItem::String) {
                             if let Some(clone_spans) =
                                 get_spans(cx, Some(body.id()), idx, &[("clone", ".to_string()"), ("as_str", "")]) {
                                 diag.span_suggestion(
@@ -266,7 +269,7 @@ fn check_fn(
                                         snippet_opt(cx, span)
                                             .map_or(
                                                 "change the call to".into(),
-                                                |x| Cow::from(format!("change `{}` to", x))
+                                                |x| Cow::from(format!("change `{x}` to"))
                                             )
                                             .as_ref(),
                                         suggestion,
@@ -341,5 +344,5 @@ fn borrow(&mut self, _: &euv::PlaceWithHirId<'tcx>, _: HirId, _: ty::BorrowKind)
 
     fn mutate(&mut self, _: &euv::PlaceWithHirId<'tcx>, _: HirId) {}
 
-    fn fake_read(&mut self, _: &rustc_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
+    fn fake_read(&mut self, _: &rustc_hir_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
 }