Auto merge of rust-lang#8942 - flip1995:rustup, r=flip1995

Rustup

r? `@ghost`

changelog: none

Author: bors

clippy_lints/src/casts/unnecessary_cast.rs

@@ -12,12 +12,12 @@ use rustc_middle::ty::{self, FloatTy, InferTy, Ty};
 
 use super::UNNECESSARY_CAST;
 
-pub(super) fn check(
-    cx: &LateContext<'_>,
-    expr: &Expr<'_>,
-    cast_expr: &Expr<'_>,
-    cast_from: Ty<'_>,
-    cast_to: Ty<'_>,
+pub(super) fn check<'tcx>(
+    cx: &LateContext<'tcx>,
+    expr: &Expr<'tcx>,
+    cast_expr: &Expr<'tcx>,
+    cast_from: Ty<'tcx>,
+    cast_to: Ty<'tcx>,
 ) -> bool {
     // skip non-primitive type cast
     if_chain! {

clippy_lints/src/crate_in_macro_def.rs

@@ -90,7 +90,7 @@ fn contains_unhygienic_crate_reference(tts: &TokenStream) -> Option<Span> {
     while let Some(curr) = cursor.next() {
         if_chain! {
             if !prev_is_dollar;
-            if let Some(span) = is_crate_keyword(&curr);
+            if let Some(span) = is_crate_keyword(curr);
             if let Some(next) = cursor.look_ahead(0);
             if is_token(next, &TokenKind::ModSep);
             then {
@@ -103,7 +103,7 @@ fn contains_unhygienic_crate_reference(tts: &TokenStream) -> Option<Span> {
                 return span;
             }
         }
-        prev_is_dollar = is_token(&curr, &TokenKind::Dollar);
+        prev_is_dollar = is_token(curr, &TokenKind::Dollar);
     }
     None
 }

clippy_lints/src/dereference.rs

@@ -446,7 +446,7 @@ fn try_parse_ref_op<'tcx>(
 
 // Checks whether the type for a deref call actually changed the type, not just the mutability of
 // the reference.
-fn deref_method_same_type(result_ty: Ty<'_>, arg_ty: Ty<'_>) -> bool {
+fn deref_method_same_type<'tcx>(result_ty: Ty<'tcx>, arg_ty: Ty<'tcx>) -> bool {
     match (result_ty.kind(), arg_ty.kind()) {
         (ty::Ref(_, result_ty, _), ty::Ref(_, arg_ty, _)) => result_ty == arg_ty,
 
@@ -541,8 +541,8 @@ fn is_auto_borrow_position(parent: Option<Node<'_>>, child_id: HirId) -> bool {
 /// Adjustments are sometimes made in the parent block rather than the expression itself.
 fn find_adjustments<'tcx>(
     tcx: TyCtxt<'tcx>,
-    typeck: &'tcx TypeckResults<'_>,
-    expr: &'tcx Expr<'_>,
+    typeck: &'tcx TypeckResults<'tcx>,
+    expr: &'tcx Expr<'tcx>,
 ) -> &'tcx [Adjustment<'tcx>] {
     let map = tcx.hir();
     let mut iter = map.parent_iter(expr.hir_id);
@@ -581,7 +581,7 @@ fn find_adjustments<'tcx>(
 }
 
 #[expect(clippy::needless_pass_by_value)]
-fn report(cx: &LateContext<'_>, expr: &Expr<'_>, state: State, data: StateData) {
+fn report<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>, state: State, data: StateData) {
     match state {
         State::DerefMethod {
             ty_changed_count,
@@ -656,7 +656,7 @@ fn report(cx: &LateContext<'_>, expr: &Expr<'_>, state: State, data: StateData)
 }
 
 impl Dereferencing {
-    fn check_local_usage(&mut self, cx: &LateContext<'_>, e: &Expr<'_>, local: HirId) {
+    fn check_local_usage<'tcx>(&mut self, cx: &LateContext<'tcx>, e: &Expr<'tcx>, local: HirId) {
         if let Some(outer_pat) = self.ref_locals.get_mut(&local) {
             if let Some(pat) = outer_pat {
                 // Check for auto-deref

clippy_lints/src/escape.rs

@@ -189,7 +189,7 @@ impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
         }
     }
 
-    fn fake_read(&mut self, _: rustc_typeck::expr_use_visitor::Place<'tcx>, _: FakeReadCause, _: HirId) {}
+    fn fake_read(&mut self, _: &rustc_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
 }
 
 impl<'a, 'tcx> EscapeDelegate<'a, 'tcx> {

clippy_lints/src/explicit_write.rs

@@ -4,7 +4,8 @@ use clippy_utils::source::snippet_with_applicability;
 use clippy_utils::{is_expn_of, match_function_call, paths};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
-use rustc_hir::{Expr, ExprKind};
+use rustc_hir::def::Res;
+use rustc_hir::{BindingAnnotation, Block, BlockCheckMode, Expr, ExprKind, Node, PatKind, QPath, Stmt, StmtKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::sym;
@@ -47,7 +48,7 @@ impl<'tcx> LateLintPass<'tcx> for ExplicitWrite {
             if let ExprKind::MethodCall(unwrap_fun, [write_call], _) = expr.kind;
             if unwrap_fun.ident.name == sym::unwrap;
             // match call to write_fmt
-            if let ExprKind::MethodCall(write_fun, [write_recv, write_arg], _) = write_call.kind;
+            if let ExprKind::MethodCall(write_fun, [write_recv, write_arg], _) = look_in_block(cx, &write_call.kind);
             if write_fun.ident.name == sym!(write_fmt);
             // match calls to std::io::stdout() / std::io::stderr ()
             if let Some(dest_name) = if match_function_call(cx, write_recv, &paths::STDOUT).is_some() {
@@ -108,3 +109,34 @@ impl<'tcx> LateLintPass<'tcx> for ExplicitWrite {
         }
     }
 }
+
+/// If `kind` is a block that looks like `{ let result = $expr; result }` then
+/// returns $expr. Otherwise returns `kind`.
+fn look_in_block<'tcx, 'hir>(cx: &LateContext<'tcx>, kind: &'tcx ExprKind<'hir>) -> &'tcx ExprKind<'hir> {
+    if_chain! {
+        if let ExprKind::Block(block, _label @ None) = kind;
+        if let Block {
+            stmts: [Stmt { kind: StmtKind::Local(local), .. }],
+            expr: Some(expr_end_of_block),
+            rules: BlockCheckMode::DefaultBlock,
+            ..
+        } = block;
+
+        // Find id of the local that expr_end_of_block resolves to
+        if let ExprKind::Path(QPath::Resolved(None, expr_path)) = expr_end_of_block.kind;
+        if let Res::Local(expr_res) = expr_path.res;
+        if let Some(Node::Binding(res_pat)) = cx.tcx.hir().find(expr_res);
+
+        // Find id of the local we found in the block
+        if let PatKind::Binding(BindingAnnotation::Unannotated, local_hir_id, _ident, None) = local.pat.kind;
+
+        // If those two are the same hir id
+        if res_pat.hir_id == local_hir_id;
+
+        if let Some(init) = local.init;
+        then {
+            return &init.kind;
+        }
+    }
+    kind
+}

clippy_lints/src/len_zero.rs

@@ -259,8 +259,8 @@ fn parse_len_output<'tcx>(cx: &LateContext<'_>, sig: FnSig<'tcx>) -> Option<LenO
     }
 }
 
-impl LenOutput<'_> {
-    fn matches_is_empty_output(self, ty: Ty<'_>) -> bool {
+impl<'tcx> LenOutput<'tcx> {
+    fn matches_is_empty_output(self, ty: Ty<'tcx>) -> bool {
         match (self, ty.kind()) {
             (_, &ty::Bool) => true,
             (Self::Option(id), &ty::Adt(adt, subs)) if id == adt.did() => subs.type_at(0).is_bool(),
@@ -292,7 +292,7 @@ impl LenOutput<'_> {
 }
 
 /// Checks if the given signature matches the expectations for `is_empty`
-fn check_is_empty_sig(sig: FnSig<'_>, self_kind: ImplicitSelfKind, len_output: LenOutput<'_>) -> bool {
+fn check_is_empty_sig<'tcx>(sig: FnSig<'tcx>, self_kind: ImplicitSelfKind, len_output: LenOutput<'tcx>) -> bool {
     match &**sig.inputs_and_output {
         [arg, res] if len_output.matches_is_empty_output(*res) => {
             matches!(
@@ -306,11 +306,11 @@ fn check_is_empty_sig(sig: FnSig<'_>, self_kind: ImplicitSelfKind, len_output: L
 }
 
 /// Checks if the given type has an `is_empty` method with the appropriate signature.
-fn check_for_is_empty(
-    cx: &LateContext<'_>,
+fn check_for_is_empty<'tcx>(
+    cx: &LateContext<'tcx>,
     span: Span,
     self_kind: ImplicitSelfKind,
-    output: LenOutput<'_>,
+    output: LenOutput<'tcx>,
     impl_ty: DefId,
     item_name: Symbol,
     item_kind: &str,

clippy_lints/src/lifetimes.rs

@@ -371,7 +371,7 @@ impl<'a, 'tcx> RefVisitor<'a, 'tcx> {
         if let Some(ref lt) = *lifetime {
             if lt.name == LifetimeName::Static {
                 self.lts.push(RefLt::Static);
-            } else if let LifetimeName::Param(ParamName::Fresh(_)) = lt.name {
+            } else if let LifetimeName::Param(_, ParamName::Fresh) = lt.name {
                 // Fresh lifetimes generated should be ignored.
             } else if lt.is_elided() {
                 self.lts.push(RefLt::Unnamed);

clippy_lints/src/loops/mut_range_bound.rs

@@ -114,7 +114,7 @@ impl<'tcx> Delegate<'tcx> for MutatePairDelegate<'_, 'tcx> {
         }
     }
 
-    fn fake_read(&mut self, _: rustc_typeck::expr_use_visitor::Place<'tcx>, _: FakeReadCause, _: HirId) {}
+    fn fake_read(&mut self, _: &rustc_typeck::expr_use_visitor::PlaceWithHirId<'tcx>, _: FakeReadCause, _: HirId) {}
 }
 
 impl MutatePairDelegate<'_, '_> {

clippy_lints/src/loops/needless_range_loop.rs

@@ -117,7 +117,9 @@ pub(super) fn check<'tcx>(
                                 let take_expr = sugg::Sugg::hir(cx, take_expr, "<count>");
                                 format!(".take({})", take_expr + sugg::ONE)
                             },
-                            ast::RangeLimits::HalfOpen => format!(".take({})", snippet(cx, take_expr.span, "..")),
+                            ast::RangeLimits::HalfOpen => {
+                                format!(".take({})", snippet(cx, take_expr.span, ".."))
+                            },
                         }
                     }
                 } else {
@@ -262,7 +264,11 @@ impl<'a, 'tcx> VarVisitor<'a, 'tcx> {
                 match res {
                     Res::Local(hir_id) => {
                         let parent_def_id = self.cx.tcx.hir().get_parent_item(expr.hir_id);
-                        let extent = self.cx.tcx.region_scope_tree(parent_def_id).var_scope(hir_id.local_id).unwrap();
+                        let extent = self.cx
+                            .tcx
+                            .region_scope_tree(parent_def_id)
+                            .var_scope(hir_id.local_id)
+                            .unwrap();
                         if index_used_directly {
                             self.indexed_directly.insert(
                                 seqvar.segments[0].ident.name,

clippy_lints/src/manual_non_exhaustive.rs

@@ -113,7 +113,7 @@ impl EarlyLintPass for ManualNonExhaustiveStruct {
             let mut iter = fields.iter().filter_map(|f| match f.vis.kind {
                 VisibilityKind::Public => None,
                 VisibilityKind::Inherited => Some(Ok(f)),
-                _ => Some(Err(())),
+                VisibilityKind::Restricted { .. } => Some(Err(())),
             });
             if let Some(Ok(field)) = iter.next()
                 && iter.next().is_none()