Rustup

clippy_lints/src/booleans.rs

@@ -6,9 +6,10 @@ use if_chain::if_chain;
 use rustc_ast::ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::intravisit::{walk_expr, FnKind, Visitor};
-use rustc_hir::{BinOpKind, Body, Expr, ExprKind, FnDecl, HirId, UnOp};
+use rustc_hir::{BinOpKind, Body, Expr, ExprKind, FnDecl, UnOp};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::Span;
 use rustc_span::sym;
 
@@ -82,7 +83,7 @@ impl<'tcx> LateLintPass<'tcx> for NonminimalBool {
         _: &'tcx FnDecl<'_>,
         body: &'tcx Body<'_>,
         _: Span,
-        _: HirId,
+        _: LocalDefId,
     ) {
         NonminimalBoolVisitor { cx }.visit_body(body);
     }

clippy_lints/src/casts/as_ptr_cast_mut.rs

@@ -17,7 +17,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>,
         && let ExprKind::MethodCall(method_name, receiver, [], _) = cast_expr.peel_blocks().kind
         && method_name.ident.name == rustc_span::sym::as_ptr
         && let Some(as_ptr_did) = cx.typeck_results().type_dependent_def_id(cast_expr.peel_blocks().hir_id)
-        && let as_ptr_sig = cx.tcx.fn_sig(as_ptr_did)
+        && let as_ptr_sig = cx.tcx.fn_sig(as_ptr_did).subst_identity()
         && let Some(first_param_ty) = as_ptr_sig.skip_binder().inputs().iter().next()
         && let ty::Ref(_, _, Mutability::Not) = first_param_ty.kind()
         && let Some(recv) = snippet_opt(cx, receiver.span)

clippy_lints/src/cognitive_complexity.rs

@@ -8,9 +8,10 @@ use clippy_utils::{get_async_fn_body, is_async_fn, LimitStack};
 use core::ops::ControlFlow;
 use rustc_ast::ast::Attribute;
 use rustc_hir::intravisit::FnKind;
-use rustc_hir::{Body, Expr, ExprKind, FnDecl, HirId};
+use rustc_hir::{Body, Expr, ExprKind, FnDecl};
 use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::Span;
 use rustc_span::{sym, BytePos};
 
@@ -140,9 +141,8 @@ impl<'tcx> LateLintPass<'tcx> for CognitiveComplexity {
         decl: &'tcx FnDecl<'_>,
         body: &'tcx Body<'_>,
         span: Span,
-        hir_id: HirId,
+        def_id: LocalDefId,
     ) {
-        let def_id = cx.tcx.hir().local_def_id(hir_id);
         if !cx.tcx.has_attr(def_id.to_def_id(), sym::test) {
             let expr = if is_async_fn(kind) {
                 match get_async_fn_body(cx.tcx, body) {

clippy_lints/src/default_numeric_fallback.rs

@@ -141,7 +141,7 @@ impl<'a, 'tcx> Visitor<'tcx> for NumericFallbackVisitor<'a, 'tcx> {
 
             ExprKind::MethodCall(_, receiver, args, _) => {
                 if let Some(def_id) = self.cx.typeck_results().type_dependent_def_id(expr.hir_id) {
-                    let fn_sig = self.cx.tcx.fn_sig(def_id).skip_binder();
+                    let fn_sig = self.cx.tcx.fn_sig(def_id).subst_identity().skip_binder();
                     for (expr, bound) in iter::zip(std::iter::once(*receiver).chain(args.iter()), fn_sig.inputs()) {
                         self.ty_bounds.push((*bound).into());
                         self.visit_expr(expr);
@@ -215,7 +215,7 @@ fn fn_sig_opt<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> Option<PolyFnSig<'
     let node_ty = cx.typeck_results().node_type_opt(hir_id)?;
     // We can't use `Ty::fn_sig` because it automatically performs substs, this may result in FNs.
     match node_ty.kind() {
-        ty::FnDef(def_id, _) => Some(cx.tcx.fn_sig(*def_id)),
+        ty::FnDef(def_id, _) => Some(cx.tcx.fn_sig(*def_id).subst_identity()),
         ty::FnPtr(fn_sig) => Some(*fn_sig),
         _ => None,
     }

clippy_lints/src/dereference.rs

@@ -759,7 +759,7 @@ fn walk_parents<'tcx>(
             }) if span.ctxt() == ctxt => {
                 let output = cx
                     .tcx
-                    .erase_late_bound_regions(cx.tcx.fn_sig(owner_id.to_def_id()).output());
+                    .erase_late_bound_regions(cx.tcx.fn_sig(owner_id).subst_identity().output());
                 Some(ty_auto_deref_stability(cx, output, precedence).position_for_result(cx))
             },
 
@@ -778,20 +778,20 @@ fn walk_parents<'tcx>(
 
             Node::Expr(parent) if parent.span.ctxt() == ctxt => match parent.kind {
                 ExprKind::Ret(_) => {
-                    let owner_id = cx.tcx.hir().body_owner(cx.enclosing_body.unwrap());
+                    let owner_id = cx.tcx.hir().body_owner_def_id(cx.enclosing_body.unwrap());
                     Some(
                         if let Node::Expr(
                             closure_expr @ Expr {
                                 kind: ExprKind::Closure(closure),
                                 ..
                             },
-                        ) = cx.tcx.hir().get(owner_id)
+                        ) = cx.tcx.hir().get_by_def_id(owner_id)
                         {
                             closure_result_position(cx, closure, cx.typeck_results().expr_ty(closure_expr), precedence)
                         } else {
                             let output = cx
                                 .tcx
-                                .erase_late_bound_regions(cx.tcx.fn_sig(cx.tcx.hir().local_def_id(owner_id)).output());
+                                .erase_late_bound_regions(cx.tcx.fn_sig(owner_id).subst_identity().output());
                             ty_auto_deref_stability(cx, output, precedence).position_for_result(cx)
                         },
                     )
@@ -858,7 +858,7 @@ fn walk_parents<'tcx>(
                             && let subs = cx
                                 .typeck_results()
                                 .node_substs_opt(parent.hir_id).map(|subs| &subs[1..]).unwrap_or_default()
-                            && let impl_ty = if cx.tcx.fn_sig(id).skip_binder().inputs()[0].is_ref() {
+                            && let impl_ty = if cx.tcx.fn_sig(id).subst_identity().skip_binder().inputs()[0].is_ref() {
                                 // Trait methods taking `&self`
                                 sub_ty
                             } else {
@@ -879,7 +879,7 @@ fn walk_parents<'tcx>(
                         return Some(Position::MethodReceiver);
                     }
                     args.iter().position(|arg| arg.hir_id == child_id).map(|i| {
-                        let ty = cx.tcx.fn_sig(id).skip_binder().inputs()[i + 1];
+                        let ty = cx.tcx.fn_sig(id).subst_identity().skip_binder().inputs()[i + 1];
                         // `e.hir_id == child_id` for https://github.com/rust-lang/rust-clippy/issues/9739
                         // `method.args.is_none()` for https://github.com/rust-lang/rust-clippy/issues/9782
                         if e.hir_id == child_id && method.args.is_none() && let ty::Param(param_ty) = ty.kind() {
@@ -896,7 +896,7 @@ fn walk_parents<'tcx>(
                         } else {
                             ty_auto_deref_stability(
                                 cx,
-                                cx.tcx.erase_late_bound_regions(cx.tcx.fn_sig(id).input(i + 1)),
+                                cx.tcx.erase_late_bound_regions(cx.tcx.fn_sig(id).subst_identity().input(i + 1)),
                                 precedence,
                             )
                             .position_for_arg()
@@ -1093,7 +1093,7 @@ fn needless_borrow_impl_arg_position<'tcx>(
     let sized_trait_def_id = cx.tcx.lang_items().sized_trait();
 
     let Some(callee_def_id) = fn_def_id(cx, parent) else { return Position::Other(precedence) };
-    let fn_sig = cx.tcx.fn_sig(callee_def_id).skip_binder();
+    let fn_sig = cx.tcx.fn_sig(callee_def_id).subst_identity().skip_binder();
     let substs_with_expr_ty = cx
         .typeck_results()
         .node_substs(if let ExprKind::Call(callee, _) = parent.kind {
@@ -1221,7 +1221,7 @@ fn has_ref_mut_self_method(cx: &LateContext<'_>, trait_def_id: DefId) -> bool {
         .in_definition_order()
         .any(|assoc_item| {
             if assoc_item.fn_has_self_parameter {
-                let self_ty = cx.tcx.fn_sig(assoc_item.def_id).skip_binder().inputs()[0];
+                let self_ty = cx.tcx.fn_sig(assoc_item.def_id).subst_identity().skip_binder().inputs()[0];
                 matches!(self_ty.kind(), ty::Ref(_, _, Mutability::Mut))
             } else {
                 false
@@ -1419,6 +1419,7 @@ fn ty_auto_deref_stability<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, precedenc
             | ty::FnDef(..)
             | ty::Generator(..)
             | ty::GeneratorWitness(..)
+            | ty::GeneratorWitnessMIR(..)
             | ty::Closure(..)
             | ty::Never
             | ty::Tuple(_)

clippy_lints/src/derive.rs

@@ -7,7 +7,7 @@ use rustc_errors::Applicability;
 use rustc_hir::def_id::DefId;
 use rustc_hir::intravisit::{walk_expr, walk_fn, walk_item, FnKind, Visitor};
 use rustc_hir::{
-    self as hir, BlockCheckMode, BodyId, Constness, Expr, ExprKind, FnDecl, HirId, Impl, Item, ItemKind, UnsafeSource,
+    self as hir, BlockCheckMode, BodyId, Constness, Expr, ExprKind, FnDecl, Impl, Item, ItemKind, UnsafeSource,
     Unsafety,
 };
 use rustc_lint::{LateContext, LateLintPass};
@@ -18,6 +18,7 @@ use rustc_middle::ty::{
     TraitPredicate, Ty, TyCtxt,
 };
 use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::Span;
 use rustc_span::sym;
 
@@ -425,7 +426,7 @@ struct UnsafeVisitor<'a, 'tcx> {
 impl<'tcx> Visitor<'tcx> for UnsafeVisitor<'_, 'tcx> {
     type NestedFilter = nested_filter::All;
 
-    fn visit_fn(&mut self, kind: FnKind<'tcx>, decl: &'tcx FnDecl<'_>, body_id: BodyId, _: Span, id: HirId) {
+    fn visit_fn(&mut self, kind: FnKind<'tcx>, decl: &'tcx FnDecl<'_>, body_id: BodyId, _: Span, id: LocalDefId) {
         if self.has_unsafe {
             return;
         }

clippy_lints/src/doc.rs

@@ -23,7 +23,6 @@ use rustc_parse::maybe_new_parser_from_source_str;
 use rustc_parse::parser::ForceCollect;
 use rustc_session::parse::ParseSess;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
-use rustc_span::def_id::LocalDefId;
 use rustc_span::edition::Edition;
 use rustc_span::source_map::{BytePos, FilePathMapping, SourceMap, Span};
 use rustc_span::{sym, FileName, Pos};
@@ -302,7 +301,7 @@ impl<'tcx> LateLintPass<'tcx> for DocMarkdown {
                         panic_span: None,
                     };
                     fpu.visit_expr(body.value);
-                    lint_for_missing_headers(cx, item.owner_id.def_id, sig, headers, Some(body_id), fpu.panic_span);
+                    lint_for_missing_headers(cx, item.owner_id, sig, headers, Some(body_id), fpu.panic_span);
                 }
             },
             hir::ItemKind::Impl(impl_) => {
@@ -338,7 +337,7 @@ impl<'tcx> LateLintPass<'tcx> for DocMarkdown {
         let Some(headers) = check_attrs(cx, &self.valid_idents, attrs) else { return };
         if let hir::TraitItemKind::Fn(ref sig, ..) = item.kind {
             if !in_external_macro(cx.tcx.sess, item.span) {
-                lint_for_missing_headers(cx, item.owner_id.def_id, sig, headers, None, None);
+                lint_for_missing_headers(cx, item.owner_id, sig, headers, None, None);
             }
         }
     }
@@ -357,34 +356,34 @@ impl<'tcx> LateLintPass<'tcx> for DocMarkdown {
                 panic_span: None,
             };
             fpu.visit_expr(body.value);
-            lint_for_missing_headers(cx, item.owner_id.def_id, sig, headers, Some(body_id), fpu.panic_span);
+            lint_for_missing_headers(cx, item.owner_id, sig, headers, Some(body_id), fpu.panic_span);
         }
     }
 }
 
 fn lint_for_missing_headers(
     cx: &LateContext<'_>,
-    def_id: LocalDefId,
+    owner_id: hir::OwnerId,
     sig: &hir::FnSig<'_>,
     headers: DocHeaders,
     body_id: Option<hir::BodyId>,
     panic_span: Option<Span>,
 ) {
-    if !cx.effective_visibilities.is_exported(def_id) {
+    if !cx.effective_visibilities.is_exported(owner_id.def_id) {
         return; // Private functions do not require doc comments
     }
 
     // do not lint if any parent has `#[doc(hidden)]` attribute (#7347)
     if cx
         .tcx
         .hir()
-        .parent_iter(cx.tcx.hir().local_def_id_to_hir_id(def_id))
+        .parent_iter(owner_id.into())
         .any(|(id, _node)| is_doc_hidden(cx.tcx.hir().attrs(id)))
     {
         return;
     }
 
-    let span = cx.tcx.def_span(def_id);
+    let span = cx.tcx.def_span(owner_id);
     match (headers.safety, sig.header.unsafety) {
         (false, hir::Unsafety::Unsafe) => span_lint(
             cx,
@@ -411,8 +410,7 @@ fn lint_for_missing_headers(
         );
     }
     if !headers.errors {
-        let hir_id = cx.tcx.hir().local_def_id_to_hir_id(def_id);
-        if is_type_diagnostic_item(cx, return_ty(cx, hir_id), sym::Result) {
+        if is_type_diagnostic_item(cx, return_ty(cx, owner_id), sym::Result) {
             span_lint(
                 cx,
                 MISSING_ERRORS_DOC,

clippy_lints/src/escape.rs

@@ -8,6 +8,7 @@ use rustc_middle::mir::FakeReadCause;
 use rustc_middle::ty::layout::LayoutOf;
 use rustc_middle::ty::{self, TraitRef, Ty};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::Span;
 use rustc_span::symbol::kw;
 use rustc_target::spec::abi::Abi;
@@ -63,15 +64,19 @@ impl<'tcx> LateLintPass<'tcx> for BoxedLocal {
         _: &'tcx FnDecl<'_>,
         body: &'tcx Body<'_>,
         _: Span,
-        hir_id: HirId,
+        fn_def_id: LocalDefId,
     ) {
         if let Some(header) = fn_kind.header() {
             if header.abi != Abi::Rust {
                 return;
             }
         }
 
-        let parent_id = cx.tcx.hir().get_parent_item(hir_id).def_id;
+        let parent_id = cx
+            .tcx
+            .hir()
+            .get_parent_item(cx.tcx.hir().local_def_id_to_hir_id(fn_def_id))
+            .def_id;
         let parent_node = cx.tcx.hir().find_by_def_id(parent_id);
 
         let mut trait_self_ty = None;
@@ -84,7 +89,7 @@ impl<'tcx> LateLintPass<'tcx> for BoxedLocal {
             // find `self` ty for this trait if relevant
             if let ItemKind::Trait(_, _, _, _, items) = item.kind {
                 for trait_item in items {
-                    if trait_item.id.hir_id() == hir_id {
+                    if trait_item.id.owner_id.def_id == fn_def_id {
                         // be sure we have `self` parameter in this function
                         if trait_item.kind == (AssocItemKind::Fn { has_self: true }) {
                             trait_self_ty = Some(
@@ -105,7 +110,6 @@ impl<'tcx> LateLintPass<'tcx> for BoxedLocal {
             too_large_for_stack: self.too_large_for_stack,
         };
 
-        let fn_def_id = cx.tcx.hir().local_def_id(hir_id);
         let infcx = cx.tcx.infer_ctxt().build();
         ExprUseVisitor::new(&mut v, &infcx, fn_def_id, cx.param_env, cx.typeck_results()).consume_body(body);
 

clippy_lints/src/excessive_bools.rs

@@ -1,9 +1,10 @@
 use clippy_utils::diagnostics::span_lint_and_help;
 use clippy_utils::{get_parent_as_impl, has_repr_attr, is_bool};
 use rustc_hir::intravisit::FnKind;
-use rustc_hir::{Body, FnDecl, HirId, Item, ItemKind, TraitFn, TraitItem, TraitItemKind, Ty};
+use rustc_hir::{Body, FnDecl, Item, ItemKind, TraitFn, TraitItem, TraitItemKind, Ty};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_span::def_id::LocalDefId;
 use rustc_span::Span;
 use rustc_target::spec::abi::Abi;
 
@@ -168,8 +169,9 @@ impl<'tcx> LateLintPass<'tcx> for ExcessiveBools {
         fn_decl: &'tcx FnDecl<'tcx>,
         _: &'tcx Body<'tcx>,
         span: Span,
-        hir_id: HirId,
+        def_id: LocalDefId,
     ) {
+        let hir_id = cx.tcx.hir().local_def_id_to_hir_id(def_id);
         if let Some(fn_header) = fn_kind.header()
             && fn_header.abi == Abi::Rust
             && get_parent_as_impl(cx.tcx, hir_id)

clippy_lints/src/exhaustive_items.rs

@@ -79,8 +79,7 @@ impl LateLintPass<'_> for ExhaustiveItems {
             then {
                 let (lint, msg) = if let ItemKind::Struct(ref v, ..) = item.kind {
                     if v.fields().iter().any(|f| {
-                        let def_id = cx.tcx.hir().local_def_id(f.hir_id);
-                        !cx.tcx.visibility(def_id).is_public()
+                        !cx.tcx.visibility(f.def_id).is_public()
                     }) {
                         // skip structs with private fields
                         return;

clippy_lints/src/format_args.rs

@@ -311,6 +311,10 @@ fn check_uninlined_args(
     // in those cases, make the code suggestion hidden
     let multiline_fix = fixes.iter().any(|(span, _)| cx.sess().source_map().is_multiline(*span));
 
+    // Suggest removing each argument only once, for example in `format!("{0} {0}", arg)`.
+    fixes.sort_unstable_by_key(|(span, _)| *span);
+    fixes.dedup_by_key(|(span, _)| *span);
+
     span_lint_and_then(
         cx,
         UNINLINED_FORMAT_ARGS,

clippy_lints/src/functions/misnamed_getters.rs

@@ -1,7 +1,7 @@
 use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::source::snippet;
 use rustc_errors::Applicability;
-use rustc_hir::{intravisit::FnKind, Body, ExprKind, FnDecl, HirId, ImplicitSelfKind, Unsafety};
+use rustc_hir::{intravisit::FnKind, Body, ExprKind, FnDecl, ImplicitSelfKind, Unsafety};
 use rustc_lint::LateContext;
 use rustc_middle::ty;
 use rustc_span::Span;
@@ -10,14 +10,7 @@ use std::iter;
 
 use super::MISNAMED_GETTERS;
 
-pub fn check_fn(
-    cx: &LateContext<'_>,
-    kind: FnKind<'_>,
-    decl: &FnDecl<'_>,
-    body: &Body<'_>,
-    span: Span,
-    _hir_id: HirId,
-) {
+pub fn check_fn(cx: &LateContext<'_>, kind: FnKind<'_>, decl: &FnDecl<'_>, body: &Body<'_>, span: Span) {
     let FnKind::Method(ref ident, sig) = kind else {
             return;
         };

clippy_lints/src/functions/mod.rs

@@ -9,6 +9,7 @@ use rustc_hir as hir;
 use rustc_hir::intravisit;
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
+use rustc_span::def_id::LocalDefId;
 use rustc_span::Span;
 
 declare_clippy_lint! {
@@ -363,12 +364,13 @@ impl<'tcx> LateLintPass<'tcx> for Functions {
         decl: &'tcx hir::FnDecl<'_>,
         body: &'tcx hir::Body<'_>,
         span: Span,
-        hir_id: hir::HirId,
+        def_id: LocalDefId,
     ) {
+        let hir_id = cx.tcx.hir().local_def_id_to_hir_id(def_id);
         too_many_arguments::check_fn(cx, kind, decl, span, hir_id, self.too_many_arguments_threshold);
         too_many_lines::check_fn(cx, kind, span, body, self.too_many_lines_threshold);
-        not_unsafe_ptr_arg_deref::check_fn(cx, kind, decl, body, hir_id);
-        misnamed_getters::check_fn(cx, kind, decl, body, span, hir_id);
+        not_unsafe_ptr_arg_deref::check_fn(cx, kind, decl, body, def_id);
+        misnamed_getters::check_fn(cx, kind, decl, body, span);
     }
 
     fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>) {