Move some methods from tcx.hir() to tcx

Renamings:
- find -> opt_hir_node
- get -> hir_node
- find_by_def_id -> opt_hir_node_by_def_id
- get_by_def_id -> hir_node_by_def_id

Fix rebase changes using removed methods

Use `tcx.hir_node_by_def_id()` whenever possible in compiler

Fix clippy errors

Fix compiler

Apply suggestions from code review

Co-authored-by: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>

Add FIXME for `tcx.hir()` returned type about its removal

Simplify with with `tcx.hir_node_by_def_id`

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -18,7 +18,7 @@ use rustc_middle::mir::{
     PlaceRef, ProjectionElem, Rvalue, Statement, StatementKind, Terminator, TerminatorKind,
     VarBindingForm,
 };
-use rustc_middle::ty::{self, suggest_constraining_type_params, PredicateKind, Ty};
+use rustc_middle::ty::{self, suggest_constraining_type_params, PredicateKind, Ty, TyCtxt};
 use rustc_middle::util::CallKind;
 use rustc_mir_dataflow::move_paths::{InitKind, MoveOutIndex, MovePathIndex};
 use rustc_span::def_id::LocalDefId;
@@ -398,7 +398,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                 }
                 let typeck = self.infcx.tcx.typeck(self.mir_def_id());
                 let hir_id = hir.parent_id(expr.hir_id);
-                if let Some(parent) = hir.find(hir_id) {
+                if let Some(parent) = self.infcx.tcx.opt_hir_node(hir_id) {
                     let (def_id, args, offset) = if let hir::Node::Expr(parent_expr) = parent
                         && let hir::ExprKind::MethodCall(_, _, args, _) = parent_expr.kind
                         && let Some(def_id) = typeck.type_dependent_def_id(parent_expr.hir_id)
@@ -413,7 +413,10 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                         (None, &[][..], 0)
                     };
                     if let Some(def_id) = def_id
-                        && let Some(node) = hir.find(self.infcx.tcx.local_def_id_to_hir_id(def_id))
+                        && let Some(node) = self
+                            .infcx
+                            .tcx
+                            .opt_hir_node(self.infcx.tcx.local_def_id_to_hir_id(def_id))
                         && let Some(fn_sig) = node.fn_sig()
                         && let Some(ident) = node.ident()
                         && let Some(pos) = args.iter().position(|arg| arg.hir_id == expr.hir_id)
@@ -1317,7 +1320,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         let tcx = self.infcx.tcx;
         let hir = tcx.hir();
 
-        let Some(body_id) = hir.get(self.mir_hir_id()).body_id() else { return };
+        let Some(body_id) = tcx.hir_node(self.mir_hir_id()).body_id() else { return };
         let typeck_results = tcx.typeck(self.mir_def_id());
 
         struct ExprFinder<'hir> {
@@ -1509,7 +1512,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         let local_ty = self.body.local_decls[local].ty;
 
         // Get the body the error happens in
-        let Some(body_id) = hir.get(self.mir_hir_id()).body_id() else { return };
+        let Some(body_id) = tcx.hir_node(self.mir_hir_id()).body_id() else { return };
 
         let body_expr = hir.body(body_id).value;
 
@@ -1558,7 +1561,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         // Check that the parent of the closure is a method call,
         // with receiver matching with local's type (modulo refs)
         let parent = hir.parent_id(closure_expr.hir_id);
-        if let hir::Node::Expr(parent) = hir.get(parent) {
+        if let hir::Node::Expr(parent) = tcx.hir_node(parent) {
             if let hir::ExprKind::MethodCall(_, recv, ..) = parent.kind {
                 let recv_ty = typeck_results.expr_ty(recv);
 
@@ -1635,15 +1638,14 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         issued_spans: &UseSpans<'tcx>,
     ) {
         let UseSpans::ClosureUse { capture_kind_span, .. } = issued_spans else { return };
-        let hir = self.infcx.tcx.hir();
 
-        struct ExpressionFinder<'hir> {
+        struct ExpressionFinder<'tcx> {
             capture_span: Span,
             closure_change_spans: Vec<Span>,
             closure_arg_span: Option<Span>,
             in_closure: bool,
             suggest_arg: String,
-            hir: rustc_middle::hir::map::Map<'hir>,
+            tcx: TyCtxt<'tcx>,
             closure_local_id: Option<hir::HirId>,
             closure_call_changes: Vec<(Span, String)>,
         }
@@ -1657,7 +1659,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                         fn_decl: hir::FnDecl { inputs, .. },
                         ..
                     }) = e.kind
-                        && let Some(hir::Node::Expr(body)) = self.hir.find(body.hir_id)
+                        && let Some(hir::Node::Expr(body)) = self.tcx.opt_hir_node(body.hir_id)
                     {
                         self.suggest_arg = "this: &Self".to_string();
                         if inputs.len() > 0 {
@@ -1722,8 +1724,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
         if let Some(hir::Node::ImplItem(hir::ImplItem {
             kind: hir::ImplItemKind::Fn(_fn_sig, body_id),
             ..
-        })) = hir.find(self.mir_hir_id())
+        })) = self.infcx.tcx.opt_hir_node(self.mir_hir_id())
-            && let Some(hir::Node::Expr(expr)) = hir.find(body_id.hir_id)
+            && let Some(hir::Node::Expr(expr)) = self.infcx.tcx.opt_hir_node(body_id.hir_id)
         {
             let mut finder = ExpressionFinder {
                 capture_span: *capture_kind_span,
@@ -1733,7 +1735,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                 suggest_arg: String::new(),
                 closure_local_id: None,
                 closure_call_changes: vec![],
-                hir,
+                tcx: self.infcx.tcx,
             };
             finder.visit_expr(expr);
 
@@ -2294,7 +2296,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                 let proper_span = proper_span.source_callsite();
                 if let Some(scope) = self.body.source_scopes.get(source_info.scope)
                     && let ClearCrossCrate::Set(scope_data) = &scope.local_data
-                    && let Some(node) = self.infcx.tcx.hir().find(scope_data.lint_root)
+                    && let Some(node) = self.infcx.tcx.opt_hir_node(scope_data.lint_root)
                     && let Some(id) = node.body_id()
                     && let hir::ExprKind::Block(block, _) = self.infcx.tcx.hir().body(id).value.kind
                 {

compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs

@@ -87,7 +87,7 @@ impl<'tcx> BorrowExplanation<'tcx> {
                     if let hir::ExprKind::Path(hir::QPath::Resolved(None, p)) = expr.kind
                         && let [hir::PathSegment { ident, args: None, .. }] = p.segments
                         && let hir::def::Res::Local(hir_id) = p.res
-                        && let Some(hir::Node::Pat(pat)) = tcx.hir().find(hir_id)
+                        && let Some(hir::Node::Pat(pat)) = tcx.opt_hir_node(hir_id)
                     {
                         err.span_label(pat.span, format!("binding `{ident}` declared here"));
                     }

compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs

@@ -396,7 +396,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
 
                 let upvar_hir_id = captured_place.get_root_variable();
 
-                if let Some(Node::Pat(pat)) = self.infcx.tcx.hir().find(upvar_hir_id)
+                if let Some(Node::Pat(pat)) = self.infcx.tcx.opt_hir_node(upvar_hir_id)
                     && let hir::PatKind::Binding(hir::BindingAnnotation::NONE, _, upvar_ident, _) =
                         pat.kind
                 {
@@ -661,7 +661,6 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
         if self.body.local_kind(local) != LocalKind::Arg {
             return (false, None);
         }
-        let hir_map = self.infcx.tcx.hir();
         let my_def = self.body.source.def_id();
         let my_hir = self.infcx.tcx.local_def_id_to_hir_id(my_def.as_local().unwrap());
         let Some(td) =
@@ -671,7 +670,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
         };
         (
             true,
-            td.as_local().and_then(|tld| match hir_map.find_by_def_id(tld) {
+            td.as_local().and_then(|tld| match self.infcx.tcx.opt_hir_node_by_def_id(tld) {
                 Some(Node::Item(hir::Item {
                     kind: hir::ItemKind::Trait(_, _, _, _, items),
                     ..
@@ -682,13 +681,14 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                         if !matches!(k, hir::AssocItemKind::Fn { .. }) {
                             continue;
                         }
-                        if hir_map.name(hi) != hir_map.name(my_hir) {
+                        if self.infcx.tcx.hir().name(hi) != self.infcx.tcx.hir().name(my_hir) {
                             continue;
                         }
                         f_in_trait_opt = Some(hi);
                         break;
                     }
-                    f_in_trait_opt.and_then(|f_in_trait| match hir_map.find(f_in_trait) {
+                    f_in_trait_opt.and_then(|f_in_trait| {
+                        match self.infcx.tcx.opt_hir_node(f_in_trait) {
                             Some(Node::TraitItem(hir::TraitItem {
                                 kind:
                                     hir::TraitItemKind::Fn(
@@ -701,6 +701,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                                 Some(span)
                             }
                             _ => None,
+                        }
                     })
                 }
                 _ => None,
@@ -741,12 +742,11 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
             }
         }
 
-        let hir_map = self.infcx.tcx.hir();
         let def_id = self.body.source.def_id();
         let hir_id = if let Some(local_def_id) = def_id.as_local()
-            && let Some(body_id) = hir_map.maybe_body_owned_by(local_def_id)
+            && let Some(body_id) = self.infcx.tcx.hir().maybe_body_owned_by(local_def_id)
         {
-            let body = hir_map.body(body_id);
+            let body = self.infcx.tcx.hir().body(body_id);
             let mut v = BindingFinder { span: pat_span, hir_id: None };
             v.visit_body(body);
             v.hir_id
@@ -762,7 +762,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
             && let Some(hir::Node::Local(hir::Local {
                 pat: hir::Pat { kind: hir::PatKind::Ref(_, _), .. },
                 ..
-            })) = hir_map.find(hir_id)
+            })) = self.infcx.tcx.opt_hir_node(hir_id)
             && let Ok(name) =
                 self.infcx.tcx.sess.source_map().span_to_snippet(local_decl.source_info.span)
         {
@@ -942,7 +942,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
         let closure_id = self.mir_hir_id();
         let closure_span = self.infcx.tcx.def_span(self.mir_def_id());
         let fn_call_id = hir.parent_id(closure_id);
-        let node = hir.get(fn_call_id);
+        let node = self.infcx.tcx.hir_node(fn_call_id);
         let def_id = hir.enclosing_body_owner(fn_call_id);
         let mut look_at_return = true;
         // If we can detect the expression to be an `fn` call where the closure was an argument,
@@ -1001,7 +1001,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
         if look_at_return && hir.get_return_block(closure_id).is_some() {
             // ...otherwise we are probably in the tail expression of the function, point at the
             // return type.
-            match hir.get_by_def_id(hir.get_parent_item(fn_call_id).def_id) {
+            match self.infcx.tcx.hir_node_by_def_id(hir.get_parent_item(fn_call_id).def_id) {
                 hir::Node::Item(hir::Item { ident, kind: hir::ItemKind::Fn(sig, ..), .. })
                 | hir::Node::TraitItem(hir::TraitItem {
                     ident,
@@ -1199,12 +1199,11 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                         hir::intravisit::walk_stmt(self, s);
                     }
                 }
-                let hir_map = self.infcx.tcx.hir();
                 let def_id = self.body.source.def_id();
                 let hir_id = if let Some(local_def_id) = def_id.as_local()
-                    && let Some(body_id) = hir_map.maybe_body_owned_by(local_def_id)
+                    && let Some(body_id) = self.infcx.tcx.hir().maybe_body_owned_by(local_def_id)
                 {
-                    let body = hir_map.body(body_id);
+                    let body = self.infcx.tcx.hir().body(body_id);
                     let mut v = BindingFinder { span: err_label_span, hir_id: None };
                     v.visit_body(body);
                     v.hir_id
@@ -1213,7 +1212,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                 };
 
                 if let Some(hir_id) = hir_id
-                    && let Some(hir::Node::Local(local)) = hir_map.find(hir_id)
+                    && let Some(hir::Node::Local(local)) = self.infcx.tcx.opt_hir_node(hir_id)
                 {
                     let tables = self.infcx.tcx.typeck(def_id.as_local().unwrap());
                     if let Some(clone_trait) = self.infcx.tcx.lang_items().clone_trait()
@@ -1496,7 +1495,7 @@ fn get_mut_span_in_struct_field<'tcx>(
         && let ty::Adt(def, _) = ty.kind()
         && let field = def.all_fields().nth(field.index())?
         // Use the HIR types to construct the diagnostic message.
-        && let node = tcx.hir().find_by_def_id(field.did.as_local()?)?
+        && let node = tcx.opt_hir_node_by_def_id(field.did.as_local()?)?
         // Now we're dealing with the actual struct that we're going to suggest a change to,
         // we can expect a field that is an immutable reference to a type.
         && let hir::Node::Field(field) = node

compiler/rustc_borrowck/src/diagnostics/region_name.rs

@@ -672,7 +672,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
 
         let mir_hir_id = self.mir_hir_id();
 
-        let (return_span, mir_description, hir_ty) = match hir.get(mir_hir_id) {
+        let (return_span, mir_description, hir_ty) = match tcx.hir_node(mir_hir_id) {
             hir::Node::Expr(hir::Expr {
                 kind: hir::ExprKind::Closure(&hir::Closure { fn_decl, body, fn_decl_span, .. }),
                 ..
@@ -689,7 +689,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
                         hir::CoroutineSource::Closure => " of async closure",
                         hir::CoroutineSource::Fn => {
                             let parent_item =
-                                hir.get_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
+                                tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
                             let output = &parent_item
                                 .fn_decl()
                                 .expect("coroutine lowered from async fn should be in fn")
@@ -706,7 +706,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
                         hir::CoroutineSource::Closure => " of gen closure",
                         hir::CoroutineSource::Fn => {
                             let parent_item =
-                                hir.get_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
+                                tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
                             let output = &parent_item
                                 .fn_decl()
                                 .expect("coroutine lowered from gen fn should be in fn")
@@ -721,7 +721,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
                         hir::CoroutineSource::Closure => " of async gen closure",
                         hir::CoroutineSource::Fn => {
                             let parent_item =
-                                hir.get_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
+                                tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
                             let output = &parent_item
                                 .fn_decl()
                                 .expect("coroutine lowered from async gen fn should be in fn")
@@ -841,7 +841,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
         let type_name =
             self.infcx.extract_inference_diagnostics_data(yield_ty.into(), Some(highlight)).name;
 
-        let yield_span = match tcx.hir().get(self.mir_hir_id()) {
+        let yield_span = match tcx.hir_node(self.mir_hir_id()) {
             hir::Node::Expr(hir::Expr {
                 kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, .. }),
                 ..

compiler/rustc_const_eval/src/const_eval/fn_queries.rs

@@ -33,7 +33,7 @@ pub fn is_parent_const_impl_raw(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool {
 /// return if it has a `const` modifier. If it is an intrinsic, report whether said intrinsic
 /// has a `rustc_const_{un,}stable` attribute. Otherwise, return `Constness::NotConst`.
 fn constness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> hir::Constness {
-    let node = tcx.hir().get_by_def_id(def_id);
+    let node = tcx.hir_node_by_def_id(def_id);
 
     match node {
         hir::Node::Ctor(_)

compiler/rustc_const_eval/src/interpret/validity.rs

@@ -227,7 +227,7 @@ impl<'rt, 'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> ValidityVisitor<'rt, 'mir, '
                         // Sometimes the index is beyond the number of upvars (seen
                         // for a coroutine).
                         let var_hir_id = captured_place.get_root_variable();
-                        let node = self.ecx.tcx.hir().get(var_hir_id);
+                        let node = self.ecx.tcx.hir_node(var_hir_id);
                         if let hir::Node::Pat(pat) = node {
                             if let hir::PatKind::Binding(_, _, ident, _) = pat.kind {
                                 name = Some(ident.name);

compiler/rustc_const_eval/src/transform/check_consts/ops.rs

@@ -119,8 +119,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> {
             match self_ty.kind() {
                 Param(param_ty) => {
                     debug!(?param_ty);
-                    let caller_hir_id = tcx.local_def_id_to_hir_id(caller);
+                    if let Some(generics) = tcx.hir_node_by_def_id(caller).generics() {
-                    if let Some(generics) = tcx.hir().get(caller_hir_id).generics() {
                         let constraint = with_no_trimmed_paths!(format!(
                             "~const {}",
                             trait_ref.print_only_trait_path()

compiler/rustc_hir_analysis/src/astconv/lint.rs

@@ -24,7 +24,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
                     ..
                 }),
             ..
-        }) = tcx.hir().get_by_def_id(parent_id)
+        }) = tcx.hir_node_by_def_id(parent_id)
             && self_ty.hir_id == impl_self_ty.hir_id
         {
             if !of_trait_ref.trait_def_id().is_some_and(|def_id| def_id.is_local()) {

compiler/rustc_hir_analysis/src/astconv/mod.rs

@@ -2715,7 +2715,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
         let hir = tcx.hir();
 
         let hir::Node::ImplItem(hir::ImplItem { kind: hir::ImplItemKind::Fn(..), ident, .. }) =
-            hir.get(fn_hir_id)
+            tcx.hir_node(fn_hir_id)
         else {
             return None;
         };

compiler/rustc_hir_analysis/src/check/check.rs

@@ -504,7 +504,7 @@ fn check_item_type(tcx: TyCtxt<'_>, id: hir::ItemId) {
             let origin = tcx.opaque_type_origin(id.owner_id.def_id);
             if let hir::OpaqueTyOrigin::FnReturn(fn_def_id)
             | hir::OpaqueTyOrigin::AsyncFn(fn_def_id) = origin
-                && let hir::Node::TraitItem(trait_item) = tcx.hir().get_by_def_id(fn_def_id)
+                && let hir::Node::TraitItem(trait_item) = tcx.hir_node_by_def_id(fn_def_id)
                 && let (_, hir::TraitFn::Required(..)) = trait_item.expect_fn()
             {
                 // Skip opaques from RPIT in traits with no default body.
@@ -1173,7 +1173,7 @@ fn detect_discriminant_duplicate<'tcx>(tcx: TyCtxt<'tcx>, adt: ty::AdtDef<'tcx>)
             ty::VariantDiscr::Explicit(discr_def_id) => {
                 // In the case the discriminant is both a duplicate and overflowed, let the user know
                 if let hir::Node::AnonConst(expr) =
-                    tcx.hir().get_by_def_id(discr_def_id.expect_local())
+                    tcx.hir_node_by_def_id(discr_def_id.expect_local())
                     && let hir::ExprKind::Lit(lit) = &tcx.hir().body(expr.body).value.kind
                     && let rustc_ast::LitKind::Int(lit_value, _int_kind) = &lit.node
                     && *lit_value != dis.val

compiler/rustc_hir_analysis/src/check/compare_impl_item.rs

@@ -2181,7 +2181,7 @@ pub(super) fn check_type_bounds<'tcx>(
     let impl_ty_span = if impl_ty.is_impl_trait_in_trait() {
         tcx.def_span(impl_ty_def_id)
     } else {
-        match tcx.hir().get_by_def_id(impl_ty_def_id) {
+        match tcx.hir_node_by_def_id(impl_ty_def_id) {
             hir::Node::TraitItem(hir::TraitItem {
                 kind: hir::TraitItemKind::Type(_, Some(ty)),
                 ..

compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs

@@ -278,7 +278,7 @@ fn report_mismatched_rpitit_signature<'tcx>(
     }
 
     let (span, impl_return_span, pre, post) =
-        match tcx.hir().get_by_def_id(impl_m_def_id.expect_local()).fn_decl().unwrap().output {
+        match tcx.hir_node_by_def_id(impl_m_def_id.expect_local()).fn_decl().unwrap().output {
             hir::FnRetTy::DefaultReturn(span) => (tcx.def_span(impl_m_def_id), span, "-> ", " "),
             hir::FnRetTy::Return(ty) => (ty.span, ty.span, "", ""),
         };

compiler/rustc_hir_analysis/src/check/entry.rs

@@ -43,7 +43,7 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) {
             return None;
         }
         let hir_id = tcx.local_def_id_to_hir_id(def_id.expect_local());
-        match tcx.hir().find(hir_id) {
+        match tcx.opt_hir_node(hir_id) {
             Some(Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, generics, _), .. })) => {
                 generics.params.is_empty().not().then_some(generics.span)
             }
@@ -58,7 +58,7 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) {
             return None;
         }
         let hir_id = tcx.local_def_id_to_hir_id(def_id.expect_local());
-        match tcx.hir().find(hir_id) {
+        match tcx.opt_hir_node(hir_id) {
             Some(Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, generics, _), .. })) => {
                 Some(generics.where_clause_span)
             }
@@ -80,7 +80,7 @@ fn check_main_fn_ty(tcx: TyCtxt<'_>, main_def_id: DefId) {
             return None;
         }
         let hir_id = tcx.local_def_id_to_hir_id(def_id.expect_local());
-        match tcx.hir().find(hir_id) {
+        match tcx.opt_hir_node(hir_id) {
             Some(Node::Item(hir::Item { kind: hir::ItemKind::Fn(fn_sig, _, _), .. })) => {
                 Some(fn_sig.decl.output.span())
             }
@@ -199,7 +199,7 @@ fn check_start_fn_ty(tcx: TyCtxt<'_>, start_def_id: DefId) {
     let start_t = tcx.type_of(start_def_id).instantiate_identity();
     match start_t.kind() {
         ty::FnDef(..) => {
-            if let Some(Node::Item(it)) = tcx.hir().find(start_id) {
+            if let Some(Node::Item(it)) = tcx.opt_hir_node(start_id) {
                 if let hir::ItemKind::Fn(sig, generics, _) = &it.kind {
                     let mut error = false;
                     if !generics.params.is_empty() {

compiler/rustc_hir_analysis/src/check/mod.rs

@@ -130,7 +130,7 @@ fn get_owner_return_paths(
 ) -> Option<(LocalDefId, ReturnsVisitor<'_>)> {
     let hir_id = tcx.local_def_id_to_hir_id(def_id);
     let parent_id = tcx.hir().get_parent_item(hir_id).def_id;
-    tcx.hir().find_by_def_id(parent_id).and_then(|node| node.body_id()).map(|body_id| {
+    tcx.opt_hir_node_by_def_id(parent_id).and_then(|node| node.body_id()).map(|body_id| {
         let body = tcx.hir().body(body_id);
         let mut visitor = ReturnsVisitor::default();
         visitor.visit_body(body);

compiler/rustc_hir_analysis/src/check/wfcheck.rs

@@ -793,7 +793,7 @@ fn could_be_self(trait_def_id: LocalDefId, ty: &hir::Ty<'_>) -> bool {
 /// When this is done, suggest using `Self` instead.
 fn check_object_unsafe_self_trait_by_name(tcx: TyCtxt<'_>, item: &hir::TraitItem<'_>) {
     let (trait_name, trait_def_id) =
-        match tcx.hir().get_by_def_id(tcx.hir().get_parent_item(item.hir_id()).def_id) {
+        match tcx.hir_node_by_def_id(tcx.hir().get_parent_item(item.hir_id()).def_id) {
             hir::Node::Item(item) => match item.kind {
                 hir::ItemKind::Trait(..) => (item.ident, item.owner_id),
                 _ => return,
@@ -1019,7 +1019,7 @@ fn check_type_defn<'tcx>(
             for field in &variant.fields {
                 let field_id = field.did.expect_local();
                 let hir::FieldDef { ty: hir_ty, .. } =
-                    tcx.hir().get_by_def_id(field_id).expect_field();
+                    tcx.hir_node_by_def_id(field_id).expect_field();
                 let ty = wfcx.normalize(
                     hir_ty.span,
                     None,
@@ -1057,7 +1057,7 @@ fn check_type_defn<'tcx>(
                 let last = idx == variant.fields.len() - 1;
                 let field_id = field.did.expect_local();
                 let hir::FieldDef { ty: hir_ty, .. } =
-                    tcx.hir().get_by_def_id(field_id).expect_field();
+                    tcx.hir_node_by_def_id(field_id).expect_field();
                 let ty = wfcx.normalize(
                     hir_ty.span,
                     None,
@@ -1882,7 +1882,7 @@ impl<'tcx> WfCheckingCtxt<'_, 'tcx> {
             // Match the existing behavior.
             if pred.is_global() && !pred.has_type_flags(TypeFlags::HAS_BINDER_VARS) {
                 let pred = self.normalize(span, None, pred);
-                let hir_node = tcx.hir().find_by_def_id(self.body_def_id);
+                let hir_node = tcx.opt_hir_node_by_def_id(self.body_def_id);
 
                 // only use the span of the predicate clause (#90869)
 

compiler/rustc_hir_analysis/src/collect.rs

@@ -221,7 +221,7 @@ pub(crate) fn placeholder_type_error_diag<'tcx>(
 
             // Check if parent is const or static
             let parent_id = tcx.hir().parent_id(hir_ty.hir_id);
-            let parent_node = tcx.hir().get(parent_id);
+            let parent_node = tcx.hir_node(parent_id);
 
             is_const_or_static = matches!(
                 parent_node,
@@ -354,7 +354,7 @@ impl<'tcx> ItemCtxt<'tcx> {
     }
 
     pub fn node(&self) -> hir::Node<'tcx> {
-        self.tcx.hir().get(self.hir_id())
+        self.tcx.hir_node(self.hir_id())
     }
 }
 
@@ -835,8 +835,7 @@ fn convert_variant(
 fn adt_def(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::AdtDef<'_> {
     use rustc_hir::*;
 
-    let hir_id = tcx.local_def_id_to_hir_id(def_id);
+    let Node::Item(item) = tcx.hir_node_by_def_id(def_id) else {
-    let Node::Item(item) = tcx.hir().get(hir_id) else {
         bug!();
     };
 
@@ -1105,7 +1104,7 @@ fn fn_sig(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<ty::PolyFnSig<
 
     let icx = ItemCtxt::new(tcx, def_id);
 
-    let output = match tcx.hir().get(hir_id) {
+    let output = match tcx.hir_node(hir_id) {
         TraitItem(hir::TraitItem {
             kind: TraitItemKind::Fn(sig, TraitFn::Provided(_)),
             generics,
@@ -1551,7 +1550,7 @@ fn compute_sig_of_foreign_fn_decl<'tcx>(
 }
 
 fn coroutine_kind(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<hir::CoroutineKind> {
-    match tcx.hir().get_by_def_id(def_id) {
+    match tcx.hir_node_by_def_id(def_id) {
         Node::Expr(&rustc_hir::Expr {
             kind: rustc_hir::ExprKind::Closure(&rustc_hir::Closure { body, .. }),
             ..
@@ -1561,7 +1560,7 @@ fn coroutine_kind(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<hir::CoroutineK
 }
 
 fn is_type_alias_impl_trait<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> bool {
-    match tcx.hir().get_by_def_id(def_id) {
+    match tcx.hir_node_by_def_id(def_id) {
         Node::Item(hir::Item { kind: hir::ItemKind::OpaqueTy(opaque), .. }) => {
             matches!(opaque.origin, hir::OpaqueTyOrigin::TyAlias { .. })
         }

compiler/rustc_hir_analysis/src/collect/generics_of.rs

@@ -16,7 +16,7 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics {
 
     let hir_id = tcx.local_def_id_to_hir_id(def_id);
 
-    let node = tcx.hir().get(hir_id);
+    let node = tcx.hir_node(hir_id);
     let parent_def_id = match node {
         Node::ImplItem(_)
         | Node::TraitItem(_)

compiler/rustc_hir_analysis/src/collect/item_bounds.rs

@@ -86,7 +86,7 @@ pub(super) fn explicit_item_bounds(
         // RPITIT's bounds are the same as opaque type bounds, but with
         // a projection self type.
         Some(ty::ImplTraitInTraitData::Trait { opaque_def_id, .. }) => {
-            let item = tcx.hir().get_by_def_id(opaque_def_id.expect_local()).expect_item();
+            let item = tcx.hir_node_by_def_id(opaque_def_id.expect_local()).expect_item();
             let opaque_ty = item.expect_opaque_ty();
             return ty::EarlyBinder::bind(opaque_type_bounds(
                 tcx,
@@ -105,8 +105,7 @@ pub(super) fn explicit_item_bounds(
         None => {}
     }
 
-    let hir_id = tcx.local_def_id_to_hir_id(def_id);
+    let bounds = match tcx.hir_node_by_def_id(def_id) {
-    let bounds = match tcx.hir().get(hir_id) {
         hir::Node::TraitItem(hir::TraitItem {
             kind: hir::TraitItemKind::Type(bounds, _),
             span,

compiler/rustc_hir_analysis/src/collect/predicates_of.rs

@@ -135,7 +135,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen
     }
 
     let hir_id = tcx.local_def_id_to_hir_id(def_id);
-    let node = tcx.hir().get(hir_id);
+    let node = tcx.hir_node(hir_id);
 
     let mut is_trait = None;
     let mut is_default_impl_trait = None;
@@ -337,7 +337,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen
     // and the duplicated parameter, to ensure that they do not get out of sync.
     if let Node::Item(&Item { kind: ItemKind::OpaqueTy(..), .. }) = node {
         let opaque_ty_id = tcx.hir().parent_id(hir_id);
-        let opaque_ty_node = tcx.hir().get(opaque_ty_id);
+        let opaque_ty_node = tcx.hir_node(opaque_ty_id);
         let Node::Ty(&Ty { kind: TyKind::OpaqueDef(_, lifetimes, _), .. }) = opaque_ty_node else {
             bug!("unexpected {opaque_ty_node:?}")
         };
@@ -413,7 +413,7 @@ fn const_evaluatable_predicates_of(
     }
 
     let hir_id = tcx.local_def_id_to_hir_id(def_id);
-    let node = tcx.hir().get(hir_id);
+    let node = tcx.hir_node(hir_id);
 
     let mut collector = ConstCollector { tcx, preds: FxIndexSet::default() };
     if let hir::Node::Item(item) = node
@@ -633,7 +633,7 @@ pub(super) fn implied_predicates_with_filter(
 
     let trait_hir_id = tcx.local_def_id_to_hir_id(trait_def_id);
 
-    let Node::Item(item) = tcx.hir().get(trait_hir_id) else {
+    let Node::Item(item) = tcx.hir_node(trait_hir_id) else {
         bug!("trait_node_id {} is not an item", trait_hir_id);
     };
 
@@ -713,7 +713,7 @@ pub(super) fn type_param_predicates(
     let mut extend = None;
 
     let item_hir_id = tcx.local_def_id_to_hir_id(item_def_id);
-    let ast_generics = match tcx.hir().get(item_hir_id) {
+    let ast_generics = match tcx.hir_node(item_hir_id) {
         Node::TraitItem(item) => item.generics,
 
         Node::ImplItem(item) => item.generics,

compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs

@@ -748,7 +748,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> {
                     }
                     if let hir::Node::Item(hir::Item {
                         kind: hir::ItemKind::OpaqueTy { .. }, ..
-                    }) = self.tcx.hir().get(parent_id)
+                    }) = self.tcx.hir_node(parent_id)
                     {
                         let mut err = self.tcx.sess.struct_span_err(
                             lifetime.ident.span,
@@ -1004,7 +1004,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> {
 
 fn object_lifetime_default(tcx: TyCtxt<'_>, param_def_id: LocalDefId) -> ObjectLifetimeDefault {
     debug_assert_eq!(tcx.def_kind(param_def_id), DefKind::TyParam);
-    let hir::Node::GenericParam(param) = tcx.hir().get_by_def_id(param_def_id) else {
+    let hir::Node::GenericParam(param) = tcx.hir_node_by_def_id(param_def_id) else {
         bug!("expected GenericParam for object_lifetime_default");
     };
     match param.source {
@@ -1305,7 +1305,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> {
                 def = ResolvedArg::Error(guar);
             } else if let Some(body_id) = outermost_body {
                 let fn_id = self.tcx.hir().body_owner(body_id);
-                match self.tcx.hir().get(fn_id) {
+                match self.tcx.hir_node(fn_id) {
                     Node::Item(hir::Item { owner_id, kind: hir::ItemKind::Fn(..), .. })
                     | Node::TraitItem(hir::TraitItem {
                         owner_id,
@@ -2122,7 +2122,7 @@ pub fn deny_non_region_late_bound(
     let mut first = true;
 
     for (var, arg) in bound_vars {
-        let Node::GenericParam(param) = tcx.hir().get_by_def_id(*var) else {
+        let Node::GenericParam(param) = tcx.hir_node_by_def_id(*var) else {
             bug!();
         };
 

compiler/rustc_hir_analysis/src/collect/type_of.rs

@@ -20,10 +20,10 @@ fn anon_const_type_of<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx> {
     use rustc_middle::ty::Ty;
     let hir_id = tcx.local_def_id_to_hir_id(def_id);
 
-    let Node::AnonConst(_) = tcx.hir().get(hir_id) else { panic!() };
+    let Node::AnonConst(_) = tcx.hir_node(hir_id) else { panic!() };
 
     let parent_node_id = tcx.hir().parent_id(hir_id);
-    let parent_node = tcx.hir().get(parent_node_id);
+    let parent_node = tcx.hir_node(parent_node_id);
 
     let (generics, arg_idx) = match parent_node {
         // Easy case: arrays repeat expressions.
@@ -61,7 +61,7 @@ fn anon_const_type_of<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx> {
         }
 
         Node::TypeBinding(binding @ &TypeBinding { hir_id: binding_id, .. })
-            if let Node::TraitRef(trait_ref) = tcx.hir().get(tcx.hir().parent_id(binding_id)) =>
+            if let Node::TraitRef(trait_ref) = tcx.hir_node(tcx.hir().parent_id(binding_id)) =>
         {
             let Some(trait_def_id) = trait_ref.trait_def_id() else {
                 return Ty::new_error_with_message(
@@ -354,7 +354,7 @@ pub(super) fn type_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<Ty
 
     let icx = ItemCtxt::new(tcx, def_id);
 
-    let output = match tcx.hir().get(hir_id) {
+    let output = match tcx.hir_node(hir_id) {
         Node::TraitItem(item) => match item.kind {
             TraitItemKind::Fn(..) => {
                 let args = ty::GenericArgs::identity_for_item(tcx, def_id);
@@ -517,8 +517,7 @@ pub(super) fn type_of_opaque(
     if let Some(def_id) = def_id.as_local() {
         use rustc_hir::*;
 
-        let hir_id = tcx.local_def_id_to_hir_id(def_id);
+        Ok(ty::EarlyBinder::bind(match tcx.hir_node_by_def_id(def_id) {
-        Ok(ty::EarlyBinder::bind(match tcx.hir().get(hir_id) {
             Node::Item(item) => match item.kind {
                 ItemKind::OpaqueTy(OpaqueTy {
                     origin: hir::OpaqueTyOrigin::TyAlias { .. },

compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs

@@ -50,8 +50,8 @@ pub(super) fn find_opaque_ty_constraints_for_tait(tcx: TyCtxt<'_>, def_id: Local
     if scope == hir::CRATE_HIR_ID {
         tcx.hir().walk_toplevel_module(&mut locator);
     } else {
-        trace!("scope={:#?}", tcx.hir().get(scope));
+        trace!("scope={:#?}", tcx.hir_node(scope));
-        match tcx.hir().get(scope) {
+        match tcx.hir_node(scope) {
             // We explicitly call `visit_*` methods, instead of using `intravisit::walk_*` methods
             // This allows our visitor to process the defining item itself, causing
             // it to pick up any 'sibling' defining uses.
@@ -95,7 +95,7 @@ pub(super) fn find_opaque_ty_constraints_for_tait(tcx: TyCtxt<'_>, def_id: Local
         let reported = tcx.sess.emit_err(UnconstrainedOpaqueType {
             span: tcx.def_span(def_id),
             name: tcx.item_name(parent_def_id.to_def_id()),
-            what: match tcx.hir().get(scope) {
+            what: match tcx.hir_node(scope) {
                 _ if scope == hir::CRATE_HIR_ID => "module",
                 Node::Item(hir::Item { kind: hir::ItemKind::Mod(_), .. }) => "module",
                 Node::Item(hir::Item { kind: hir::ItemKind::Impl(_), .. }) => "impl",
@@ -282,7 +282,7 @@ pub(super) fn find_opaque_ty_constraints_for_rpit<'tcx>(
         debug!(?scope);
         let mut locator = RpitConstraintChecker { def_id, tcx, found: mir_opaque_ty };
 
-        match tcx.hir().get(scope) {
+        match tcx.hir_node(scope) {
             Node::Item(it) => intravisit::walk_item(&mut locator, it),
             Node::ImplItem(it) => intravisit::walk_impl_item(&mut locator, it),
             Node::TraitItem(it) => intravisit::walk_trait_item(&mut locator, it),

compiler/rustc_hir_analysis/src/hir_wf_check.rs

@@ -122,7 +122,7 @@ fn diagnostic_hir_wf_check<'tcx>(
     // We will walk 'into' this type to try to find
     // a more precise span for our predicate.
     let tys = match loc {
-        WellFormedLoc::Ty(_) => match hir.get(hir_id) {
+        WellFormedLoc::Ty(_) => match tcx.hir_node(hir_id) {
             hir::Node::ImplItem(item) => match item.kind {
                 hir::ImplItemKind::Type(ty) => vec![ty],
                 hir::ImplItemKind::Const(ty, _) => vec![ty],

compiler/rustc_hir_analysis/src/outlives/mod.rs

@@ -41,7 +41,7 @@ fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[(ty::Clau
         }
     }
 
-    match tcx.hir().get(id) {
+    match tcx.hir_node(id) {
         Node::Item(item) => match item.kind {
             hir::ItemKind::Struct(..) | hir::ItemKind::Enum(..) | hir::ItemKind::Union(..) => {
                 let crate_map = tcx.inferred_outlives_crate(());

compiler/rustc_hir_analysis/src/structured_errors/wrong_number_of_generic_args.rs

@@ -137,10 +137,9 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
             // is from the 'of_trait' field of the enclosing impl
 
             let parent = self.tcx.hir().get_parent(self.path_segment.hir_id);
-            let parent_item = self
+            let parent_item = self.tcx.hir_node_by_def_id(
-                .tcx
+                self.tcx.hir().get_parent_item(self.path_segment.hir_id).def_id,
-                .hir()
+            );
-                .get_by_def_id(self.tcx.hir().get_parent_item(self.path_segment.hir_id).def_id);
 
             // Get the HIR id of the trait ref
             let hir::Node::TraitRef(hir::TraitRef { hir_ref_id: trait_ref_id, .. }) = parent else {
@@ -774,7 +773,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> {
         );
 
         if let Some(parent_node) = self.tcx.hir().opt_parent_id(self.path_segment.hir_id)
-            && let Some(parent_node) = self.tcx.hir().find(parent_node)
+            && let Some(parent_node) = self.tcx.opt_hir_node(parent_node)
             && let hir::Node::Expr(expr) = parent_node
         {
             match &expr.kind {

compiler/rustc_hir_typeck/src/_match.rs

@@ -238,8 +238,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         }
 
         // Next, make sure that we have no type expectation.
-        let Some(ret) = hir
+        let Some(ret) = self
-            .find_by_def_id(self.body_id)
+            .tcx
+            .opt_hir_node_by_def_id(self.body_id)
             .and_then(|owner| owner.fn_decl())
             .map(|decl| decl.output.span())
         else {
@@ -317,7 +318,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         hir_id: hir::HirId,
         sp: Span,
     ) -> Option<(Span, String)> {
-        let node = self.tcx.hir().get(hir_id);
+        let node = self.tcx.hir_node(hir_id);
         if let hir::Node::Block(block) = node {
             // check that the body's parent is an fn
             let parent = self.tcx.hir().get_parent(self.tcx.hir().parent_id(block.hir_id));

compiler/rustc_hir_typeck/src/callee.rs

@@ -295,7 +295,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
     ) {
         let hir = self.tcx.hir();
         let parent_hir_id = hir.parent_id(hir_id);
-        let parent_node = hir.get(parent_hir_id);
+        let parent_node = self.tcx.hir_node(parent_hir_id);
         if let (
             hir::Node::Expr(hir::Expr {
                 kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, body, .. }),
@@ -313,7 +313,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 if let hir::Node::Expr(hir::Expr {
                     kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, .. }),
                     ..
-                }) = hir.get(async_closure)
+                }) = self.tcx.hir_node(async_closure)
                 {
                     fn_decl_span
                 } else {
@@ -343,7 +343,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         callee_expr: &'tcx hir::Expr<'tcx>,
     ) -> bool {
         let hir_id = self.tcx.hir().parent_id(call_expr.hir_id);
-        let parent_node = self.tcx.hir().get(hir_id);
+        let parent_node = self.tcx.hir_node(hir_id);
         if let (
             hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Array(_), .. }),
             hir::ExprKind::Tup(exp),

compiler/rustc_hir_typeck/src/closure.rs

@@ -483,8 +483,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         body: &hir::Body<'_>,
         expected_sig: ExpectedSig<'tcx>,
     ) -> ClosureSignatures<'tcx> {
-        let hir = self.tcx.hir();
+        let expr_map_node = self.tcx.hir_node_by_def_id(expr_def_id);
-        let expr_map_node = hir.get_by_def_id(expr_def_id);
         let expected_args: Vec<_> = expected_sig
             .sig
             .skip_binder()

compiler/rustc_hir_typeck/src/coercion.rs

@@ -1694,7 +1694,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> {
         let ret_msg = "return a value for the case when the loop has zero elements to iterate on";
         let ret_ty_msg =
             "otherwise consider changing the return type to account for that possibility";
-        if let Some(node) = hir.find(item.into())
+        if let Some(node) = tcx.opt_hir_node(item.into())
             && let Some(body_id) = node.body_id()
             && let Some(sig) = node.fn_sig()
             && let hir::ExprKind::Block(block, _) = hir.body(body_id).value.kind
@@ -1776,7 +1776,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> {
         let mut err = fcx.err_ctxt().report_mismatched_types(cause, expected, found, ty_err);
 
         let parent_id = fcx.tcx.hir().parent_id(id);
-        let parent = fcx.tcx.hir().get(parent_id);
+        let parent = fcx.tcx.hir_node(parent_id);
         if let Some(expr) = expression
             && let hir::Node::Expr(hir::Expr {
                 kind: hir::ExprKind::Closure(&hir::Closure { body, .. }),
@@ -1835,7 +1835,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> {
         }
 
         let parent_id = fcx.tcx.hir().get_parent_item(id);
-        let parent_item = fcx.tcx.hir().get_by_def_id(parent_id.def_id);
+        let parent_item = fcx.tcx.hir_node_by_def_id(parent_id.def_id);
 
         if let (Some(expr), Some(_), Some((fn_id, fn_decl, _, _))) =
             (expression, blk_id, fcx.get_node_fn_decl(parent_item))

compiler/rustc_hir_typeck/src/demand.rs

@@ -289,7 +289,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         let hir::def::Res::Local(local_hir_id) = p.res else {
             return false;
         };
-        let hir::Node::Pat(pat) = hir.get(local_hir_id) else {
+        let hir::Node::Pat(pat) = self.tcx.hir_node(local_hir_id) else {
             return false;
         };
         let (init_ty_hir_id, init) = match hir.get_parent(pat.hir_id) {
@@ -557,7 +557,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 hir::Node::Stmt(hir::Stmt { kind: hir::StmtKind::Semi(&ref p), .. })
                 | hir::Node::Block(hir::Block { expr: Some(&ref p), .. })
                 | hir::Node::Expr(&ref p),
-            ) = self.tcx.hir().find(parent_id)
+            ) = self.tcx.opt_hir_node(parent_id)
             else {
                 break;
             };
@@ -570,7 +570,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             let mut direct = false;
             loop {
                 // Climb the HIR tree to find the (desugared) `loop` this `break` corresponds to.
-                let parent = match self.tcx.hir().find(parent_id) {
+                let parent = match self.tcx.opt_hir_node(parent_id) {
                     Some(hir::Node::Expr(&ref parent)) => {
                         parent_id = self.tcx.hir().parent_id(parent.hir_id);
                         parent
@@ -672,7 +672,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         error: Option<TypeError<'tcx>>,
     ) {
         let parent = self.tcx.hir().parent_id(expr.hir_id);
-        match (self.tcx.hir().find(parent), error) {
+        match (self.tcx.opt_hir_node(parent), error) {
             (Some(hir::Node::Local(hir::Local { ty: Some(ty), init: Some(init), .. })), _)
                 if init.hir_id == expr.hir_id =>
             {
@@ -717,7 +717,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         None,
                         hir::Path { res: hir::def::Res::Local(hir_id), .. },
                     )) => {
-                        if let Some(hir::Node::Pat(pat)) = self.tcx.hir().find(*hir_id) {
+                        if let Some(hir::Node::Pat(pat)) = self.tcx.opt_hir_node(*hir_id) {
                             primary_span = pat.span;
                             secondary_span = pat.span;
                             match self.tcx.hir().find_parent(pat.hir_id) {
@@ -790,7 +790,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             return;
         };
         let Some(hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Assign(lhs, rhs, _), .. })) =
-            self.tcx.hir().find(parent)
+            self.tcx.opt_hir_node(parent)
         else {
             return;
         };
@@ -1014,8 +1014,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             hir::Path { res: hir::def::Res::Local(bind_hir_id), .. },
         )) = expr.kind
         {
-            let bind = self.tcx.hir().find(*bind_hir_id);
+            let bind = self.tcx.opt_hir_node(*bind_hir_id);
-            let parent = self.tcx.hir().find(self.tcx.hir().parent_id(*bind_hir_id));
+            let parent = self.tcx.opt_hir_node(self.tcx.hir().parent_id(*bind_hir_id));
             if let Some(hir::Node::Pat(hir::Pat {
                 kind: hir::PatKind::Binding(_, _hir_id, _, _),
                 ..

compiler/rustc_hir_typeck/src/expr.rs

@@ -883,7 +883,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             kind: hir::ImplItemKind::Fn(..),
             span: encl_fn_span,
             ..
-        })) = self.tcx.hir().find_by_def_id(encl_item_id.def_id)
+        })) = self.tcx.opt_hir_node_by_def_id(encl_item_id.def_id)
         {
             // We are inside a function body, so reporting "return statement
             // outside of function body" needs an explanation.
@@ -997,7 +997,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         then: impl FnOnce(&hir::Expr<'_>),
     ) {
         let mut parent = self.tcx.hir().parent_id(original_expr_id);
-        while let Some(node) = self.tcx.hir().find(parent) {
+        while let Some(node) = self.tcx.opt_hir_node(parent) {
             match node {
                 hir::Node::Expr(hir::Expr {
                     kind:

compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs

@@ -994,7 +994,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         // Get enclosing Fn, if it is a function or a trait method, unless there's a `loop` or
         // `while` before reaching it, as block tail returns are not available in them.
         self.tcx.hir().get_return_block(blk_id).and_then(|blk_id| {
-            let parent = self.tcx.hir().get(blk_id);
+            let parent = self.tcx.hir_node(blk_id);
             self.get_node_fn_decl(parent)
                 .map(|(fn_id, fn_decl, _, is_main)| (fn_id, fn_decl, is_main))
         })

compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs

@@ -94,7 +94,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         }
 
         let hir = self.tcx.hir();
-        let (expr, qpath) = match hir.get(hir_id) {
+        let (expr, qpath) = match self.tcx.hir_node(hir_id) {
             hir::Node::Expr(expr) => {
                 if self.closure_span_overlaps_error(error, expr.span) {
                     return false;
@@ -454,7 +454,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 .find_ancestor_in_same_ctxt(error.obligation.cause.span)
                 .unwrap_or(arg.span);
 
-            if let hir::Node::Expr(arg_expr) = self.tcx.hir().get(arg.hir_id) {
+            if let hir::Node::Expr(arg_expr) = self.tcx.hir_node(arg.hir_id) {
                 // This is more specific than pointing at the entire argument.
                 self.blame_specific_expr_if_possible(error, arg_expr)
             }

compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs

@@ -1734,7 +1734,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
     }
 
     fn parent_item_span(&self, id: hir::HirId) -> Option<Span> {
-        let node = self.tcx.hir().get_by_def_id(self.tcx.hir().get_parent_item(id).def_id);
+        let node = self.tcx.hir_node_by_def_id(self.tcx.hir().get_parent_item(id).def_id);
         match node {
             Node::Item(&hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. })
             | Node::ImplItem(&hir::ImplItem { kind: hir::ImplItemKind::Fn(_, body_id), .. }) => {
@@ -1750,7 +1750,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
     /// Given a function block's `HirId`, returns its `FnDecl` if it exists, or `None` otherwise.
     fn get_parent_fn_decl(&self, blk_id: hir::HirId) -> Option<(&'tcx hir::FnDecl<'tcx>, Ident)> {
-        let parent = self.tcx.hir().get_by_def_id(self.tcx.hir().get_parent_item(blk_id).def_id);
+        let parent = self.tcx.hir_node_by_def_id(self.tcx.hir().get_parent_item(blk_id).def_id);
         self.get_node_fn_decl(parent).map(|(_, fn_decl, ident, _)| (fn_decl, ident))
     }
 
@@ -2084,7 +2084,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 let node = self
                     .tcx
                     .opt_local_def_id_to_hir_id(self.tcx.hir().get_parent_item(call_expr.hir_id))
-                    .and_then(|hir_id| self.tcx.hir().find(hir_id));
+                    .and_then(|hir_id| self.tcx.opt_hir_node(hir_id));
                 match node {
                     Some(hir::Node::Item(item)) => call_finder.visit_item(item),
                     Some(hir::Node::TraitItem(item)) => call_finder.visit_trait_item(item),

compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs

@@ -677,7 +677,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 // can suggest Box::pin.
                 let parent = self.tcx.hir().parent_id(expr.hir_id);
                 let Some(Node::Expr(Expr { kind: ExprKind::Call(fn_name, _), .. })) =
-                    self.tcx.hir().find(parent)
+                    self.tcx.opt_hir_node(parent)
                 else {
                     return false;
                 };
@@ -824,7 +824,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 if let hir::TyKind::OpaqueDef(item_id, ..) = hir_ty.kind
                     && let hir::Node::Item(hir::Item {
                         kind: hir::ItemKind::OpaqueTy(op_ty), ..
-                    }) = self.tcx.hir().get(item_id.hir_id())
+                    }) = self.tcx.hir_node(item_id.hir_id())
                     && let [
                         hir::GenericBound::LangItemTrait(hir::LangItem::Future, _, _, generic_args),
                     ] = op_ty.bounds
@@ -902,7 +902,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
         let ty::Param(expected_ty_as_param) = expected.kind() else { return };
 
-        let fn_node = self.tcx.hir().find(fn_id);
+        let fn_node = self.tcx.opt_hir_node(fn_id);
 
         let Some(hir::Node::Item(hir::Item {
             kind:
@@ -1047,7 +1047,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             };
             let ty = self.normalize(expr.span, ty);
             if self.can_coerce(found, ty) {
-                if let Some(node) = self.tcx.hir().find(fn_id)
+                if let Some(node) = self.tcx.opt_hir_node(fn_id)
                     && let Some(owner_node) = node.as_owner()
                     && let Some(span) = expr.span.find_ancestor_inside(owner_node.span())
                 {
@@ -1545,12 +1545,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
     }
 
     fn is_loop(&self, id: hir::HirId) -> bool {
-        let node = self.tcx.hir().get(id);
+        let node = self.tcx.hir_node(id);
         matches!(node, Node::Expr(Expr { kind: ExprKind::Loop(..), .. }))
     }
 
     fn is_local_statement(&self, id: hir::HirId) -> bool {
-        let node = self.tcx.hir().get(id);
+        let node = self.tcx.hir_node(id);
         matches!(node, Node::Stmt(Stmt { kind: StmtKind::Local(..), .. }))
     }
 
@@ -1677,11 +1677,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 None,
                 hir::Path { segments: [_], res: crate::Res::Local(binding), .. },
             )) => {
-                let Some(hir::Node::Pat(hir::Pat { hir_id, .. })) = self.tcx.hir().find(*binding)
+                let Some(hir::Node::Pat(hir::Pat { hir_id, .. })) = self.tcx.opt_hir_node(*binding)
                 else {
                     return expr;
                 };
-                let Some(parent) = self.tcx.hir().find(self.tcx.hir().parent_id(*hir_id)) else {
+                let Some(parent) = self.tcx.opt_hir_node(self.tcx.hir().parent_id(*hir_id)) else {
                     return expr;
                 };
 
@@ -1697,7 +1697,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         ..
                     }) => {
                         let Some(hir::Node::Local(hir::Local { init: Some(init), .. })) =
-                            self.tcx.hir().find(self.tcx.hir().parent_id(*pat_hir_id))
+                            self.tcx.opt_hir_node(self.tcx.hir().parent_id(*pat_hir_id))
                         else {
                             return expr;
                         };
@@ -1730,8 +1730,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     && let hir::Path { segments: [_], res: crate::Res::Local(binding), .. } =
                         call_expr_path
                     && let Some(hir::Node::Pat(hir::Pat { hir_id, .. })) =
-                        self.tcx.hir().find(*binding)
+                        self.tcx.opt_hir_node(*binding)
-                    && let Some(closure) = self.tcx.hir().find(self.tcx.hir().parent_id(*hir_id))
+                    && let Some(closure) = self.tcx.opt_hir_node(self.tcx.hir().parent_id(*hir_id))
                     && let hir::Node::Local(hir::Local { init: Some(init), .. }) = closure
                     && let Expr {
                         kind: hir::ExprKind::Closure(hir::Closure { body: body_id, .. }),
@@ -1985,7 +1985,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
                 if let Some(hir::Node::Block(&hir::Block {
                     span: block_span, expr: Some(e), ..
-                })) = self.tcx.hir().find(parent)
+                })) = self.tcx.opt_hir_node(parent)
                 {
                     if e.hir_id == id {
                         if let Some(span) = expr.span.find_ancestor_inside(block_span) {
@@ -2211,7 +2211,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
         let local_parent = self.tcx.hir().parent_id(local_id);
         let Some(Node::Param(hir::Param { hir_id: param_hir_id, .. })) =
-            self.tcx.hir().find(local_parent)
+            self.tcx.opt_hir_node(local_parent)
         else {
             return None;
         };
@@ -2221,13 +2221,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             hir_id: expr_hir_id,
             kind: hir::ExprKind::Closure(hir::Closure { fn_decl: closure_fn_decl, .. }),
             ..
-        })) = self.tcx.hir().find(param_parent)
+        })) = self.tcx.opt_hir_node(param_parent)
         else {
             return None;
         };
 
         let expr_parent = self.tcx.hir().parent_id(*expr_hir_id);
-        let hir = self.tcx.hir().find(expr_parent);
+        let hir = self.tcx.opt_hir_node(expr_parent);
         let closure_params_len = closure_fn_decl.inputs.len();
         let (
             Some(Node::Expr(hir::Expr {
@@ -2667,7 +2667,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             if let Some(Node::Expr(hir::Expr {
                 kind: hir::ExprKind::If(_, _, Some(else_expr)),
                 ..
-            })) = self.tcx.hir().find(parent_id)
+            })) = self.tcx.opt_hir_node(parent_id)
             {
                 return else_expr.hir_id == expr.hir_id;
             }
@@ -3057,7 +3057,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             return;
         };
         let parent = self.tcx.hir().parent_id(expr.hir_id);
-        if let Some(hir::Node::ExprField(_)) = self.tcx.hir().find(parent) {
+        if let Some(hir::Node::ExprField(_)) = self.tcx.opt_hir_node(parent) {
             // Ignore `Foo { field: a..Default::default() }`
             return;
         }
@@ -3136,7 +3136,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         let hir::def::Res::Local(hir_id) = path.res else {
             return;
         };
-        let Some(hir::Node::Pat(pat)) = self.tcx.hir().find(hir_id) else {
+        let Some(hir::Node::Pat(pat)) = self.tcx.opt_hir_node(hir_id) else {
             return;
         };
         let Some(hir::Node::Local(hir::Local { ty: None, init: Some(init), .. })) =

compiler/rustc_hir_typeck/src/lib.rs

@@ -127,7 +127,7 @@ fn has_typeck_results(tcx: TyCtxt<'_>, def_id: DefId) -> bool {
     }
 
     if let Some(def_id) = def_id.as_local() {
-        primary_body_of(tcx.hir().get_by_def_id(def_id)).is_some()
+        primary_body_of(tcx.hir_node_by_def_id(def_id)).is_some()
     } else {
         false
     }
@@ -166,7 +166,7 @@ fn typeck_with_fallback<'tcx>(
     }
 
     let id = tcx.local_def_id_to_hir_id(def_id);
-    let node = tcx.hir().get(id);
+    let node = tcx.hir_node(id);
     let span = tcx.hir().span(id);
 
     // Figure out what primary body this item has.
@@ -201,7 +201,7 @@ fn typeck_with_fallback<'tcx>(
                 span,
             }))
         } else if let Node::AnonConst(_) = node {
-            match tcx.hir().get(tcx.hir().parent_id(id)) {
+            match tcx.hir_node(tcx.hir().parent_id(id)) {
                 Node::Ty(&hir::Ty { kind: hir::TyKind::Typeof(ref anon_const), .. })
                     if anon_const.hir_id == id =>
                 {

compiler/rustc_hir_typeck/src/method/suggest.rs

@@ -230,7 +230,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         }
                         if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = kind
                             && let hir::def::Res::Local(hir_id) = path.res
-                            && let Some(hir::Node::Pat(b)) = self.tcx.hir().find(hir_id)
+                            && let Some(hir::Node::Pat(b)) = self.tcx.opt_hir_node(hir_id)
                             && let Some(hir::Node::Param(p)) = self.tcx.hir().find_parent(b.hir_id)
                             && let Some(node) = self.tcx.hir().find_parent(p.hir_id)
                             && let Some(decl) = node.fn_decl()
@@ -605,16 +605,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     if let (ty::Param(_), ty::PredicateKind::Clause(ty::ClauseKind::Trait(p))) =
                         (self_ty.kind(), parent_pred.kind().skip_binder())
                     {
-                        let hir = self.tcx.hir();
                         let node = match p.trait_ref.self_ty().kind() {
                             ty::Param(_) => {
                                 // Account for `fn` items like in `issue-35677.rs` to
                                 // suggest restricting its type params.
-                                Some(hir.get_by_def_id(self.body_id))
+                                Some(self.tcx.hir_node_by_def_id(self.body_id))
-                            }
-                            ty::Adt(def, _) => {
-                                def.did().as_local().map(|def_id| hir.get_by_def_id(def_id))
                             }
+                            ty::Adt(def, _) => def
+                                .did()
+                                .as_local()
+                                .map(|def_id| self.tcx.hir_node_by_def_id(def_id)),
                             _ => None,
                         };
                         if let Some(hir::Node::Item(hir::Item { kind, .. })) = node
@@ -1952,7 +1952,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         visitor.visit_body(body);
 
         let parent = self.tcx.hir().parent_id(seg1.hir_id);
-        if let Some(Node::Expr(call_expr)) = self.tcx.hir().find(parent)
+        if let Some(Node::Expr(call_expr)) = self.tcx.opt_hir_node(parent)
             && let Some(expr) = visitor.result
             && let Some(self_ty) = self.node_ty_opt(expr.hir_id)
         {
@@ -2869,11 +2869,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                                 let id = item
                                     .def_id
                                     .as_local()
-                                    .map(|def_id| self.tcx.local_def_id_to_hir_id(def_id));
+                                    .map(|def_id| self.tcx.hir_node_by_def_id(def_id));
                                 if let Some(hir::Node::TraitItem(hir::TraitItem {
                                     kind: hir::TraitItemKind::Fn(fn_sig, method),
                                     ..
-                                })) = id.map(|id| self.tcx.hir().get(id))
+                                })) = id
                                 {
                                     let self_first_arg = match method {
                                         hir::TraitFn::Required([ident, ..]) => {
@@ -2963,7 +2963,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     // Get the `hir::Param` to verify whether it already has any bounds.
                     // We do this to avoid suggesting code that ends up as `T: FooBar`,
                     // instead we suggest `T: Foo + Bar` in that case.
-                    match hir.get(id) {
+                    match self.tcx.hir_node(id) {
                         Node::GenericParam(param) => {
                             enum Introducer {
                                 Plus,
@@ -3183,7 +3183,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         }
 
         let parent = self.tcx.hir().parent_id(expr.hir_id);
-        if let Some(Node::Expr(call_expr)) = self.tcx.hir().find(parent)
+        if let Some(Node::Expr(call_expr)) = self.tcx.opt_hir_node(parent)
             && let hir::ExprKind::MethodCall(
                 hir::PathSegment { ident: method_name, .. },
                 self_expr,

compiler/rustc_hir_typeck/src/pat.rs

@@ -720,7 +720,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             && let PatKind::Binding(_, _, binding, ..) = inner.kind
         {
             let binding_parent_id = tcx.hir().parent_id(pat.hir_id);
-            let binding_parent = tcx.hir().get(binding_parent_id);
+            let binding_parent = tcx.hir_node(binding_parent_id);
             debug!(?inner, ?pat, ?binding_parent);
 
             let mutability = match mutbl {
@@ -941,7 +941,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 Some(hir::Node::Item(hir::Item {
                     kind: hir::ItemKind::Const(_, _, body_id),
                     ..
-                })) => match self.tcx.hir().get(body_id.hir_id) {
+                })) => match self.tcx.hir_node(body_id.hir_id) {
                     hir::Node::Expr(expr) => {
                         if hir::is_range_literal(expr) {
                             let span = self.tcx.hir().span(body_id.hir_id);

compiler/rustc_hir_typeck/src/rvalue_scopes.rs

@@ -69,12 +69,13 @@ pub fn resolve_rvalue_scopes<'a, 'tcx>(
     def_id: DefId,
 ) -> RvalueScopes {
     let tcx = &fcx.tcx;
-    let hir_map = tcx.hir();
     let mut rvalue_scopes = RvalueScopes::new();
     debug!("start resolving rvalue scopes, def_id={def_id:?}");
     debug!("rvalue_scope: rvalue_candidates={:?}", scope_tree.rvalue_candidates);
     for (&hir_id, candidate) in &scope_tree.rvalue_candidates {
-        let Some(Node::Expr(expr)) = hir_map.find(hir_id) else { bug!("hir node does not exist") };
+        let Some(Node::Expr(expr)) = tcx.opt_hir_node(hir_id) else {
+            bug!("hir node does not exist")
+        };
         record_rvalue_scope(&mut rvalue_scopes, expr, candidate);
     }
     rvalue_scopes

compiler/rustc_hir_typeck/src/upvar.rs

@@ -853,7 +853,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                             // Looks like a macro fragment. Try to find the real block.
                             if let Some(hir::Node::Expr(&hir::Expr {
                                 kind: hir::ExprKind::Block(block, ..), ..
-                            })) = self.tcx.hir().find(body_id.hir_id) {
+                            })) = self.tcx.opt_hir_node(body_id.hir_id) {
                                 // If the body is a block (with `{..}`), we use the span of that block.
                                 // E.g. with a `|| $body` expanded from a `m!({ .. })`, we use `{ .. }`, and not `$body`.
                                 // Since we know it's a block, we know we can insert the `let _ = ..` without
@@ -1673,7 +1673,7 @@ fn apply_capture_kind_on_capture_ty<'tcx>(
 fn drop_location_span(tcx: TyCtxt<'_>, hir_id: hir::HirId) -> Span {
     let owner_id = tcx.hir().get_enclosing_scope(hir_id).unwrap();
 
-    let owner_node = tcx.hir().get(owner_id);
+    let owner_node = tcx.hir_node(owner_id);
     let owner_span = match owner_node {
         hir::Node::Item(item) => match item.kind {
             hir::ItemKind::Fn(_, _, owner_id) => tcx.hir().span(owner_id.hir_id),

compiler/rustc_incremental/src/persist/dirty_clean.rs

@@ -232,7 +232,7 @@ impl<'tcx> DirtyCleanVisitor<'tcx> {
     /// Return all DepNode labels that should be asserted for this item.
     /// index=0 is the "name" used for error messages
     fn auto_labels(&mut self, item_id: LocalDefId, attr: &Attribute) -> (&'static str, Labels) {
-        let node = self.tcx.hir().get_by_def_id(item_id);
+        let node = self.tcx.hir_node_by_def_id(item_id);
         let (name, labels) = match node {
             HirNode::Item(item) => {
                 match item.kind {

compiler/rustc_infer/src/errors/mod.rs

@@ -363,9 +363,7 @@ impl AddToDiagnostic for AddLifetimeParamsSuggestion<'_> {
                 return false;
             };
 
-            let hir_id = self.tcx.local_def_id_to_hir_id(anon_reg.def_id);
+            let node = self.tcx.hir_node_by_def_id(anon_reg.def_id);
-
-            let node = self.tcx.hir().get(hir_id);
             let is_impl = matches!(&node, hir::Node::ImplItem(_));
             let generics = match node {
                 hir::Node::Item(&hir::Item {

compiler/rustc_infer/src/infer/error_reporting/mod.rs

@@ -891,7 +891,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
                 }
                 // don't suggest wrapping either blocks in `if .. {} else {}`
                 let is_empty_arm = |id| {
-                    let hir::Node::Block(blk) = self.tcx.hir().get(id) else {
+                    let hir::Node::Block(blk) = self.tcx.hir_node(id) else {
                         return false;
                     };
                     if blk.expr.is_some() || !blk.stmts.is_empty() {
@@ -2007,7 +2007,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
             diag.span_note(span, "this closure does not fulfill the lifetime requirements");
             self.suggest_for_all_lifetime_closure(
                 span,
-                self.tcx.hir().get_by_def_id(def_id),
+                self.tcx.hir_node_by_def_id(def_id),
                 &exp_found,
                 diag,
             );
@@ -2121,7 +2121,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
         let TypeError::FixedArraySize(sz) = terr else {
             return None;
         };
-        let tykind = match hir.find_by_def_id(trace.cause.body_id) {
+        let tykind = match self.tcx.opt_hir_node_by_def_id(trace.cause.body_id) {
             Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. })) => {
                 let body = hir.body(*body_id);
                 struct LetVisitor<'v> {
@@ -2997,7 +2997,7 @@ impl<'tcx> InferCtxt<'tcx> {
     /// Given a [`hir::HirId`] for a block, get the span of its last expression
     /// or statement, peeling off any inner blocks.
     pub fn find_block_span_from_hir_id(&self, hir_id: hir::HirId) -> Span {
-        match self.tcx.hir().get(hir_id) {
+        match self.tcx.hir_node(hir_id) {
             hir::Node::Block(blk) => self.find_block_span(blk),
             // The parser was in a weird state if either of these happen, but
             // it's better not to panic.

compiler/rustc_infer/src/infer/error_reporting/nice_region_error/find_anon_type.rs

@@ -26,8 +26,7 @@ pub fn find_anon_type<'tcx>(
     br: &ty::BoundRegionKind,
 ) -> Option<(&'tcx hir::Ty<'tcx>, &'tcx hir::FnSig<'tcx>)> {
     let anon_reg = tcx.is_suitable_region(region)?;
-    let hir_id = tcx.local_def_id_to_hir_id(anon_reg.def_id);
+    let fn_sig = tcx.hir_node_by_def_id(anon_reg.def_id).fn_sig()?;
-    let fn_sig = tcx.hir().get(hir_id).fn_sig()?;
 
     fn_sig
         .decl

compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs

@@ -460,7 +460,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> {
                 tcx.hir().trait_impls(trait_did).iter().find_map(|&impl_did| {
                     if let Node::Item(Item {
                         kind: ItemKind::Impl(hir::Impl { self_ty, .. }), ..
-                    }) = tcx.hir().find_by_def_id(impl_did)?
+                    }) = tcx.opt_hir_node_by_def_id(impl_did)?
                         && trait_objects.iter().all(|did| {
                             // FIXME: we should check `self_ty` against the receiver
                             // type in the `UnifyReceiver` context, but for now, use

compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs

@@ -50,11 +50,10 @@ pub fn find_param_with_region<'tcx>(
 
     let hir = &tcx.hir();
     let def_id = id.as_local()?;
-    let hir_id = tcx.local_def_id_to_hir_id(def_id);
 
     // FIXME: use def_kind
     // Don't perform this on closures
-    match hir.get(hir_id) {
+    match tcx.hir_node_by_def_id(def_id) {
         hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Closure { .. }, .. }) => {
             return None;
         }

compiler/rustc_infer/src/infer/error_reporting/note_and_explain.rs

@@ -655,7 +655,7 @@ fn foo(&self) -> Self::T { String::new() }
         // When `body_owner` is an `impl` or `trait` item, look in its associated types for
         // `expected` and point at it.
         let parent_id = tcx.hir().get_parent_item(hir_id);
-        let item = tcx.hir().find_by_def_id(parent_id.def_id);
+        let item = tcx.opt_hir_node_by_def_id(parent_id.def_id);
 
         debug!("expected_projection parent item {:?}", item);
 

compiler/rustc_infer/src/infer/error_reporting/suggest.rs

@@ -42,7 +42,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
         ]
         .into_iter()
         .find_map(|(id, ty)| {
-            let hir::Node::Block(blk) = self.tcx.hir().get(id?) else { return None };
+            let hir::Node::Block(blk) = self.tcx.hir_node(id?) else { return None };
             self.could_remove_semicolon(blk, ty)
         });
         match remove_semicolon {
@@ -62,7 +62,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
                 let mut ret = None;
                 for (id, ty) in [(first_id, second_ty), (second_id, first_ty)] {
                     if let Some(id) = id
-                        && let hir::Node::Block(blk) = self.tcx.hir().get(id)
+                        && let hir::Node::Block(blk) = self.tcx.hir_node(id)
                         && let Some(diag) = self.consider_returning_binding_diag(blk, ty)
                     {
                         ret = Some(diag);

compiler/rustc_infer/src/infer/opaque_types.rs

@@ -683,8 +683,8 @@ fn may_define_opaque_type(tcx: TyCtxt<'_>, def_id: LocalDefId, opaque_hir_id: hi
     let res = hir_id == scope;
     trace!(
         "may_define_opaque_type(def={:?}, opaque_node={:?}) = {}",
-        tcx.hir().find(hir_id),
+        tcx.opt_hir_node(hir_id),
-        tcx.hir().get(opaque_hir_id),
+        tcx.hir_node(opaque_hir_id),
         res
     );
     res

compiler/rustc_lint/src/internal.rs

@@ -34,7 +34,7 @@ declare_lint_pass!(DefaultHashTypes => [DEFAULT_HASH_TYPES]);
 impl LateLintPass<'_> for DefaultHashTypes {
     fn check_path(&mut self, cx: &LateContext<'_>, path: &Path<'_>, hir_id: HirId) {
         let Res::Def(rustc_hir::def::DefKind::Struct, def_id) = path.res else { return };
-        if matches!(cx.tcx.hir().get(hir_id), Node::Item(Item { kind: ItemKind::Use(..), .. })) {
+        if matches!(cx.tcx.hir_node(hir_id), Node::Item(Item { kind: ItemKind::Use(..), .. })) {
             // don't lint imports, only actual usages
             return;
         }

compiler/rustc_lint/src/types.rs

@@ -202,7 +202,7 @@ fn lint_overflowing_range_endpoint<'tcx>(
 ) -> bool {
     // Look past casts to support cases like `0..256 as u8`
     let (expr, lit_span) = if let Node::Expr(par_expr) =
-        cx.tcx.hir().get(cx.tcx.hir().parent_id(expr.hir_id))
+        cx.tcx.hir_node(cx.tcx.hir().parent_id(expr.hir_id))
         && let ExprKind::Cast(_, _) = par_expr.kind
     {
         (par_expr, expr.span)
@@ -213,7 +213,7 @@ fn lint_overflowing_range_endpoint<'tcx>(
     // We only want to handle exclusive (`..`) ranges,
     // which are represented as `ExprKind::Struct`.
     let par_id = cx.tcx.hir().parent_id(expr.hir_id);
-    let Node::ExprField(field) = cx.tcx.hir().get(par_id) else { return false };
+    let Node::ExprField(field) = cx.tcx.hir_node(par_id) else { return false };
     let Node::Expr(struct_expr) = cx.tcx.hir().get_parent(field.hir_id) else { return false };
     if !is_range_literal(struct_expr) {
         return false;
@@ -498,7 +498,7 @@ fn lint_uint_literal<'tcx>(
     };
     if lit_val < min || lit_val > max {
         let parent_id = cx.tcx.hir().parent_id(e.hir_id);
-        if let Node::Expr(par_e) = cx.tcx.hir().get(parent_id) {
+        if let Node::Expr(par_e) = cx.tcx.hir_node(parent_id) {
             match par_e.kind {
                 hir::ExprKind::Cast(..) => {
                     if let ty::Char = cx.typeck_results().expr_ty(par_e).kind() {

compiler/rustc_metadata/src/rmeta/encoder.rs

@@ -1144,7 +1144,7 @@ fn should_encode_type(tcx: TyCtxt<'_>, def_id: LocalDefId, def_kind: DefKind) ->
             let origin = tcx.opaque_type_origin(def_id);
             if let hir::OpaqueTyOrigin::FnReturn(fn_def_id)
             | hir::OpaqueTyOrigin::AsyncFn(fn_def_id) = origin
-                && let hir::Node::TraitItem(trait_item) = tcx.hir().get_by_def_id(fn_def_id)
+                && let hir::Node::TraitItem(trait_item) = tcx.hir_node_by_def_id(fn_def_id)
                 && let (_, hir::TraitFn::Required(..)) = trait_item.expect_fn()
             {
                 false
@@ -1161,7 +1161,7 @@ fn should_encode_type(tcx: TyCtxt<'_>, def_id: LocalDefId, def_kind: DefKind) ->
             }
         }
         DefKind::TyParam => {
-            let hir::Node::GenericParam(param) = tcx.hir().get_by_def_id(def_id) else { bug!() };
+            let hir::Node::GenericParam(param) = tcx.hir_node_by_def_id(def_id) else { bug!() };
             let hir::GenericParamKind::Type { default, .. } = param.kind else { bug!() };
             default.is_some()
         }
@@ -1372,7 +1372,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
             // anonymous constants will not work on them and panic. It's not clear whether it
             // can cause any observable issues or not.
             let anon_const_without_hir = def_kind == DefKind::AnonConst
-                && tcx.hir().find(tcx.local_def_id_to_hir_id(local_id)).is_none();
+                && tcx.opt_hir_node(tcx.local_def_id_to_hir_id(local_id)).is_none();
             if should_encode_generics(def_kind) && !anon_const_without_hir {
                 let g = tcx.generics_of(def_id);
                 record!(self.tables.generics_of[def_id] <- g);

compiler/rustc_middle/src/hir/map/mod.rs

@@ -57,6 +57,10 @@ fn is_body_owner(node: Node<'_>, hir_id: HirId) -> bool {
     }
 }
 
+// FIXME: the structure was necessary in the past but now it
+// only serves as "namespace" for HIR-related methods, and can be
+// removed if all the methods are reasonably renamed and moved to tcx
+// (https://github.com/rust-lang/rust/pull/118256#issuecomment-1826442834).
 #[derive(Copy, Clone)]
 pub struct Map<'hir> {
     pub(super) tcx: TyCtxt<'hir>,
@@ -128,6 +132,40 @@ impl<'hir> Iterator for ParentOwnerIterator<'hir> {
     }
 }
 
+impl<'tcx> TyCtxt<'tcx> {
+    /// Retrieves the `hir::Node` corresponding to `id`, returning `None` if cannot be found.
+    pub fn opt_hir_node(self, id: HirId) -> Option<Node<'tcx>> {
+        if id.local_id == ItemLocalId::from_u32(0) {
+            let owner = self.hir_owner(id.owner)?;
+            Some(owner.node.into())
+        } else {
+            let owner = self.hir_owner_nodes(id.owner).as_owner()?;
+            let node = owner.nodes[id.local_id].as_ref()?;
+            Some(node.node)
+        }
+    }
+
+    /// Retrieves the `hir::Node` corresponding to `id`, returning `None` if cannot be found.
+    #[inline]
+    pub fn opt_hir_node_by_def_id(self, id: LocalDefId) -> Option<Node<'tcx>> {
+        self.opt_hir_node(self.opt_local_def_id_to_hir_id(id)?)
+    }
+
+    /// Retrieves the `hir::Node` corresponding to `id`, panicking if it cannot be found.
+    #[track_caller]
+    pub fn hir_node(self, id: HirId) -> Node<'tcx> {
+        self.opt_hir_node(id).unwrap_or_else(|| bug!("couldn't find HIR node for hir id {id:?}"))
+    }
+
+    /// Retrieves the `hir::Node` corresponding to `id`, panicking if it cannot be found.
+    #[inline]
+    #[track_caller]
+    pub fn hir_node_by_def_id(self, id: LocalDefId) -> Node<'tcx> {
+        self.opt_hir_node_by_def_id(id)
+            .unwrap_or_else(|| bug!("couldn't find HIR node for def id {id:?}"))
+    }
+}
+
 impl<'hir> Map<'hir> {
     #[inline]
     pub fn krate(self) -> &'hir Crate<'hir> {
@@ -191,46 +229,15 @@ impl<'hir> Map<'hir> {
     }
 
     pub fn get_parent(self, hir_id: HirId) -> Node<'hir> {
-        self.get(self.parent_id(hir_id))
+        self.tcx.hir_node(self.parent_id(hir_id))
     }
 
     pub fn find_parent(self, hir_id: HirId) -> Option<Node<'hir>> {
-        self.find(self.opt_parent_id(hir_id)?)
+        self.tcx.opt_hir_node(self.opt_parent_id(hir_id)?)
-    }
-
-    /// Retrieves the `Node` corresponding to `id`, returning `None` if cannot be found.
-    pub fn find(self, id: HirId) -> Option<Node<'hir>> {
-        if id.local_id == ItemLocalId::from_u32(0) {
-            let owner = self.tcx.hir_owner(id.owner)?;
-            Some(owner.node.into())
-        } else {
-            let owner = self.tcx.hir_owner_nodes(id.owner).as_owner()?;
-            let node = owner.nodes[id.local_id].as_ref()?;
-            Some(node.node)
-        }
-    }
-
-    /// Retrieves the `Node` corresponding to `id`, returning `None` if cannot be found.
-    #[inline]
-    pub fn find_by_def_id(self, id: LocalDefId) -> Option<Node<'hir>> {
-        self.find(self.tcx.opt_local_def_id_to_hir_id(id)?)
-    }
-
-    /// Retrieves the `Node` corresponding to `id`, panicking if it cannot be found.
-    #[track_caller]
-    pub fn get(self, id: HirId) -> Node<'hir> {
-        self.find(id).unwrap_or_else(|| bug!("couldn't find hir id {} in the HIR map", id))
-    }
-
-    /// Retrieves the `Node` corresponding to `id`, panicking if it cannot be found.
-    #[inline]
-    #[track_caller]
-    pub fn get_by_def_id(self, id: LocalDefId) -> Node<'hir> {
-        self.find_by_def_id(id).unwrap_or_else(|| bug!("couldn't find {:?} in the HIR map", id))
     }
 
     pub fn get_if_local(self, id: DefId) -> Option<Node<'hir>> {
-        id.as_local().and_then(|id| self.find(self.tcx.opt_local_def_id_to_hir_id(id)?))
+        id.as_local().and_then(|id| self.tcx.opt_hir_node(self.tcx.opt_local_def_id_to_hir_id(id)?))
     }
 
     pub fn get_generics(self, id: LocalDefId) -> Option<&'hir Generics<'hir>> {
@@ -264,7 +271,7 @@ impl<'hir> Map<'hir> {
 
     #[track_caller]
     pub fn fn_decl_by_hir_id(self, hir_id: HirId) -> Option<&'hir FnDecl<'hir>> {
-        if let Some(node) = self.find(hir_id) {
+        if let Some(node) = self.tcx.opt_hir_node(hir_id) {
             node.fn_decl()
         } else {
             bug!("no node for hir_id `{}`", hir_id)
@@ -273,7 +280,7 @@ impl<'hir> Map<'hir> {
 
     #[track_caller]
     pub fn fn_sig_by_hir_id(self, hir_id: HirId) -> Option<&'hir FnSig<'hir>> {
-        if let Some(node) = self.find(hir_id) {
+        if let Some(node) = self.tcx.opt_hir_node(hir_id) {
             node.fn_sig()
         } else {
             bug!("no node for hir_id `{}`", hir_id)
@@ -296,19 +303,22 @@ impl<'hir> Map<'hir> {
     /// item (possibly associated), a closure, or a `hir::AnonConst`.
     pub fn body_owner(self, BodyId { hir_id }: BodyId) -> HirId {
         let parent = self.parent_id(hir_id);
-        assert!(self.find(parent).is_some_and(|n| is_body_owner(n, hir_id)), "{hir_id:?}");
+        assert!(
+            self.tcx.opt_hir_node(parent).is_some_and(|n| is_body_owner(n, hir_id)),
+            "{hir_id:?}"
+        );
         parent
     }
 
     pub fn body_owner_def_id(self, BodyId { hir_id }: BodyId) -> LocalDefId {
         let parent = self.parent_id(hir_id);
-        associated_body(self.get(parent)).unwrap().0
+        associated_body(self.tcx.hir_node(parent)).unwrap().0
     }
 
     /// Given a `LocalDefId`, returns the `BodyId` associated with it,
     /// if the node is a body owner, otherwise returns `None`.
     pub fn maybe_body_owned_by(self, id: LocalDefId) -> Option<BodyId> {
-        let node = self.find_by_def_id(id)?;
+        let node = self.tcx.opt_hir_node_by_def_id(id)?;
         let (_, body_id) = associated_body(node)?;
         Some(body_id)
     }
@@ -548,7 +558,7 @@ impl<'hir> Map<'hir> {
     /// until the crate root is reached. Prefer this over your own loop using `parent_id`.
     #[inline]
     pub fn parent_iter(self, current_id: HirId) -> impl Iterator<Item = (HirId, Node<'hir>)> {
-        self.parent_id_iter(current_id).filter_map(move |id| Some((id, self.find(id)?)))
+        self.parent_id_iter(current_id).filter_map(move |id| Some((id, self.tcx.opt_hir_node(id)?)))
     }
 
     /// Returns an iterator for the nodes in the ancestor tree of the `current_id`
@@ -600,7 +610,7 @@ impl<'hir> Map<'hir> {
     pub fn get_return_block(self, id: HirId) -> Option<HirId> {
         let mut iter = self.parent_iter(id).peekable();
         let mut ignore_tail = false;
-        if let Some(Node::Expr(Expr { kind: ExprKind::Ret(_), .. })) = self.find(id) {
+        if let Some(Node::Expr(Expr { kind: ExprKind::Ret(_), .. })) = self.tcx.opt_hir_node(id) {
             // When dealing with `return` statements, we don't care about climbing only tail
             // expressions.
             ignore_tail = true;
@@ -708,7 +718,7 @@ impl<'hir> Map<'hir> {
         let mut scope = id;
         loop {
             scope = self.get_enclosing_scope(scope).unwrap_or(CRATE_HIR_ID);
-            if scope == CRATE_HIR_ID || !matches!(self.get(scope), Node::Block(_)) {
+            if scope == CRATE_HIR_ID || !matches!(self.tcx.hir_node(scope), Node::Block(_)) {
                 return scope;
             }
         }
@@ -764,7 +774,7 @@ impl<'hir> Map<'hir> {
     }
 
     pub fn expect_variant(self, id: HirId) -> &'hir Variant<'hir> {
-        match self.find(id) {
+        match self.tcx.opt_hir_node(id) {
             Some(Node::Variant(variant)) => variant,
             _ => bug!("expected variant, found {}", self.node_to_string(id)),
         }
@@ -783,7 +793,7 @@ impl<'hir> Map<'hir> {
     }
 
     pub fn expect_expr(self, id: HirId) -> &'hir Expr<'hir> {
-        match self.find(id) {
+        match self.tcx.opt_hir_node(id) {
             Some(Node::Expr(expr)) => expr,
             _ => bug!("expected expr, found {}", self.node_to_string(id)),
         }
@@ -791,7 +801,7 @@ impl<'hir> Map<'hir> {
 
     #[inline]
     fn opt_ident(self, id: HirId) -> Option<Ident> {
-        match self.find(id)? {
+        match self.tcx.opt_hir_node(id)? {
             Node::Pat(&Pat { kind: PatKind::Binding(_, _, ident, _), .. }) => Some(ident),
             // A `Ctor` doesn't have an identifier itself, but its parent
             // struct/variant does. Compare with `hir::Map::opt_span`.
@@ -860,7 +870,7 @@ impl<'hir> Map<'hir> {
             }
         }
 
-        let span = match self.find(hir_id)? {
+        let span = match self.tcx.opt_hir_node(hir_id)? {
             // Function-like.
             Node::Item(Item { kind: ItemKind::Fn(sig, ..), span: outer_span, .. })
             | Node::TraitItem(TraitItem {
@@ -950,7 +960,7 @@ impl<'hir> Map<'hir> {
     /// Like `hir.span()`, but includes the body of items
     /// (instead of just the item header)
     pub fn span_with_body(self, hir_id: HirId) -> Span {
-        match self.get(hir_id) {
+        match self.tcx.hir_node(hir_id) {
             Node::Param(param) => param.span,
             Node::Item(item) => item.span,
             Node::ForeignItem(foreign_item) => foreign_item.span,
@@ -1045,7 +1055,7 @@ impl<'hir> Map<'hir> {
 
 impl<'hir> intravisit::Map<'hir> for Map<'hir> {
     fn find(&self, hir_id: HirId) -> Option<Node<'hir>> {
-        (*self).find(hir_id)
+        self.tcx.opt_hir_node(hir_id)
     }
 
     fn body(&self, id: BodyId) -> &'hir Body<'hir> {
@@ -1159,7 +1169,7 @@ fn hir_id_to_string(map: Map<'_>, id: HirId) -> String {
     let span_str = || map.tcx.sess.source_map().span_to_snippet(map.span(id)).unwrap_or_default();
     let node_str = |prefix| format!("{id} ({prefix} `{}`)", span_str());
 
-    match map.find(id) {
+    match map.tcx.opt_hir_node(id) {
         Some(Node::Item(item)) => {
             let item_str = match item.kind {
                 ItemKind::ExternCrate(..) => "extern crate",

compiler/rustc_middle/src/hir/mod.rs

@@ -195,7 +195,7 @@ pub fn provide(providers: &mut Providers) {
         | Node::ForeignItem(&ForeignItem {
             kind: ForeignItemKind::Fn(_, idents, _),
             ..
-        }) = hir.get(hir_id)
+        }) = tcx.hir_node(hir_id)
         {
             idents
         } else {

compiler/rustc_middle/src/middle/region.rs

@@ -180,7 +180,7 @@ impl Scope {
         };
         let span = tcx.hir().span(hir_id);
         if let ScopeData::Remainder(first_statement_index) = self.data {
-            if let Node::Block(blk) = tcx.hir().get(hir_id) {
+            if let Node::Block(blk) = tcx.hir_node(hir_id) {
                 // Want span for scope starting after the
                 // indexed statement and ending at end of
                 // `blk`; reuse span of `blk` and shift `lo`

compiler/rustc_middle/src/middle/stability.rs

@@ -219,7 +219,7 @@ fn late_report_deprecation(
     }
     let method_span = method_span.unwrap_or(span);
     tcx.struct_span_lint_hir(lint, hir_id, method_span, message, |diag| {
-        if let hir::Node::Expr(_) = tcx.hir().get(hir_id) {
+        if let hir::Node::Expr(_) = tcx.hir_node(hir_id) {
             let kind = tcx.def_descr(def_id);
             deprecation_suggestion(diag, kind, suggestion, method_span);
         }

compiler/rustc_middle/src/ty/consts.rs

@@ -167,7 +167,7 @@ impl<'tcx> Const<'tcx> {
     /// becomes `Unevaluated`.
     #[instrument(skip(tcx), level = "debug")]
     pub fn from_anon_const(tcx: TyCtxt<'tcx>, def: LocalDefId) -> Self {
-        let body_id = match tcx.hir().get_by_def_id(def) {
+        let body_id = match tcx.hir_node_by_def_id(def) {
             hir::Node::AnonConst(ac) => ac.body,
             _ => span_bug!(
                 tcx.def_span(def.to_def_id()),
@@ -443,7 +443,7 @@ impl<'tcx> Const<'tcx> {
 }
 
 pub fn const_param_default(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<Const<'_>> {
-    let default_def_id = match tcx.hir().get_by_def_id(def_id) {
+    let default_def_id = match tcx.hir_node_by_def_id(def_id) {
         hir::Node::GenericParam(hir::GenericParam {
             kind: hir::GenericParamKind::Const { default: Some(ac), .. },
             ..

compiler/rustc_middle/src/ty/context.rs

@@ -1174,7 +1174,7 @@ impl<'tcx> TyCtxt<'tcx> {
             break (scope, ty::BrNamed(def_id.into(), self.item_name(def_id.into())));
         };
 
-        let is_impl_item = match self.hir().find_by_def_id(suitable_region_binding_scope) {
+        let is_impl_item = match self.opt_hir_node_by_def_id(suitable_region_binding_scope) {
             Some(Node::Item(..) | Node::TraitItem(..)) => false,
             Some(Node::ImplItem(..)) => {
                 self.is_bound_region_in_impl_item(suitable_region_binding_scope)
@@ -1217,8 +1217,8 @@ impl<'tcx> TyCtxt<'tcx> {
                 None,
                 hir::Path { res: hir::def::Res::Def(DefKind::TyAlias, def_id), .. }, )) = hir_output.kind
             && let Some(local_id) = def_id.as_local()
-            && let Some(alias_ty) = self.hir().get_by_def_id(local_id).alias_ty() // it is type alias
+            && let Some(alias_ty) = self.hir_node_by_def_id(local_id).alias_ty() // it is type alias
-            && let Some(alias_generics) = self.hir().get_by_def_id(local_id).generics()
+            && let Some(alias_generics) = self.hir_node_by_def_id(local_id).generics()
         {
             v.visit_ty(alias_ty);
             if !v.0.is_empty() {
@@ -2137,7 +2137,7 @@ impl<'tcx> TyCtxt<'tcx> {
         loop {
             let parent = self.local_parent(rpit_lifetime_param_def_id);
             let hir::OpaqueTy { lifetime_mapping, .. } =
-                self.hir().get_by_def_id(parent).expect_item().expect_opaque_ty();
+                self.hir_node_by_def_id(parent).expect_item().expect_opaque_ty();
 
             let Some((lifetime, _)) = lifetime_mapping
                 .iter()
@@ -2221,8 +2221,7 @@ impl<'tcx> TyCtxt<'tcx> {
     /// Whether the trait impl is marked const. This does not consider stability or feature gates.
     pub fn is_const_trait_impl_raw(self, def_id: DefId) -> bool {
         let Some(local_def_id) = def_id.as_local() else { return false };
-        let hir_id = self.local_def_id_to_hir_id(local_def_id);
+        let node = self.hir_node_by_def_id(local_def_id);
-        let node = self.hir().get(hir_id);
 
         matches!(
             node,

compiler/rustc_middle/src/values.rs

@@ -154,8 +154,9 @@ pub fn recursive_type_error(
         let (_, field_id) = item_and_field_ids[i];
         let (next_item_id, _) = item_and_field_ids[(i + 1) % cycle_len];
         // Find the span(s) that contain the next item in the cycle
-        let hir_id = tcx.local_def_id_to_hir_id(field_id);
+        let hir::Node::Field(field) = tcx.hir_node_by_def_id(field_id) else {
-        let hir::Node::Field(field) = tcx.hir().get(hir_id) else { bug!("expected field") };
+            bug!("expected field")
+        };
         let mut found = Vec::new();
         find_item_ty_spans(tcx, field.ty, next_item_id, &mut found, representable_ids);
 

compiler/rustc_mir_build/src/build/mod.rs

@@ -572,7 +572,7 @@ fn construct_const<'a, 'tcx>(
     let hir_id = tcx.local_def_id_to_hir_id(def);
 
     // Figure out what primary body this item has.
-    let (span, const_ty_span) = match tcx.hir().get(hir_id) {
+    let (span, const_ty_span) = match tcx.hir_node(hir_id) {
         Node::Item(hir::Item {
             kind: hir::ItemKind::Static(ty, _, _) | hir::ItemKind::Const(ty, _, _),
             span,

compiler/rustc_mir_build/src/thir/cx/mod.rs

@@ -110,7 +110,7 @@ impl<'tcx> Cx<'tcx> {
 
     #[instrument(level = "debug", skip(self))]
     fn pattern_from_hir(&mut self, p: &hir::Pat<'_>) -> Box<Pat<'tcx>> {
-        let p = match self.tcx.hir().get(p.hir_id) {
+        let p = match self.tcx.hir_node(p.hir_id) {
             Node::Pat(p) => p,
             node => bug!("pattern became {:?}", node),
         };

compiler/rustc_mir_transform/src/coverage/mod.rs

@@ -50,7 +50,7 @@ impl<'tcx> MirPass<'tcx> for InstrumentCoverage {
         }
 
         let is_fn_like =
-            tcx.hir().get_by_def_id(mir_source.def_id().expect_local()).fn_kind().is_some();
+            tcx.hir_node_by_def_id(mir_source.def_id().expect_local()).fn_kind().is_some();
 
         // Only instrument functions, methods, and closures (not constants since they are evaluated
         // at compile time by Miri).

compiler/rustc_passes/src/check_attr.rs

@@ -604,7 +604,7 @@ impl CheckAttrVisitor<'_> {
                     && !self.tcx.sess.target.is_like_wasm
                     && !self.tcx.sess.opts.actually_rustdoc
                 {
-                    let hir::Node::Item(item) = self.tcx.hir().get(hir_id) else {
+                    let hir::Node::Item(item) = self.tcx.hir_node(hir_id) else {
                         unreachable!();
                     };
                     let hir::ItemKind::Fn(sig, _, _) = item.kind else {
@@ -820,7 +820,7 @@ impl CheckAttrVisitor<'_> {
             self.doc_attr_str_error(meta, "keyword");
             return false;
         }
-        match self.tcx.hir().find(hir_id).and_then(|node| match node {
+        match self.tcx.opt_hir_node(hir_id).and_then(|node| match node {
             hir::Node::Item(item) => Some(&item.kind),
             _ => None,
         }) {
@@ -846,7 +846,7 @@ impl CheckAttrVisitor<'_> {
     }
 
     fn check_doc_fake_variadic(&self, meta: &NestedMetaItem, hir_id: HirId) -> bool {
-        match self.tcx.hir().find(hir_id).and_then(|node| match node {
+        match self.tcx.opt_hir_node(hir_id).and_then(|node| match node {
             hir::Node::Item(item) => Some(&item.kind),
             _ => None,
         }) {
@@ -1387,7 +1387,7 @@ impl CheckAttrVisitor<'_> {
     /// Checks if `#[link]` is applied to an item other than a foreign module.
     fn check_link(&self, hir_id: HirId, attr: &Attribute, span: Span, target: Target) {
         if target == Target::ForeignMod
-            && let hir::Node::Item(item) = self.tcx.hir().get(hir_id)
+            && let hir::Node::Item(item) = self.tcx.hir_node(hir_id)
             && let Item { kind: ItemKind::ForeignMod { abi, .. }, .. } = item
             && !matches!(abi, Abi::Rust | Abi::RustIntrinsic | Abi::PlatformIntrinsic)
         {
@@ -1456,7 +1456,7 @@ impl CheckAttrVisitor<'_> {
     }
 
     fn is_impl_item(&self, hir_id: HirId) -> bool {
-        matches!(self.tcx.hir().get(hir_id), hir::Node::ImplItem(..))
+        matches!(self.tcx.hir_node(hir_id), hir::Node::ImplItem(..))
     }
 
     /// Checks if `#[export_name]` is applied to a function or static. Returns `true` if valid.
@@ -2074,7 +2074,7 @@ impl CheckAttrVisitor<'_> {
             && let hir::Node::Item(Item {
                 kind: ItemKind::ForeignMod { abi: Abi::RustIntrinsic | Abi::PlatformIntrinsic, .. },
                 ..
-            }) = hir.get(parent)
+            }) = self.tcx.hir_node(parent)
         {
             return true;
         }
@@ -2222,7 +2222,7 @@ impl CheckAttrVisitor<'_> {
         } else {
             // special case when `#[macro_export]` is applied to a macro 2.0
             let (macro_definition, _) =
-                self.tcx.hir().find(hir_id).unwrap().expect_item().expect_macro();
+                self.tcx.opt_hir_node(hir_id).unwrap().expect_item().expect_macro();
             let is_decl_macro = !macro_definition.macro_rules;
 
             if is_decl_macro {

compiler/rustc_passes/src/dead.rs

@@ -32,7 +32,7 @@ use crate::errors::{
 // may need to be marked as live.
 fn should_explore(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool {
     matches!(
-        tcx.hir().find_by_def_id(def_id),
+        tcx.opt_hir_node_by_def_id(def_id),
         Some(
             Node::Item(..)
                 | Node::ImplItem(..)
@@ -297,7 +297,7 @@ impl<'tcx> MarkSymbolVisitor<'tcx> {
             // tuple struct constructor function
             let id = self.struct_constructors.get(&id).copied().unwrap_or(id);
 
-            if let Some(node) = self.tcx.hir().find_by_def_id(id) {
+            if let Some(node) = self.tcx.opt_hir_node_by_def_id(id) {
                 // When using `#[allow]` or `#[expect]` of `dead_code`, we do a QOL improvement
                 // by declaring fn calls, statics, ... within said items as live, as well as
                 // the item itself, although technically this is not the case.

compiler/rustc_passes/src/entry.rs

@@ -126,7 +126,7 @@ fn configure_main(tcx: TyCtxt<'_>, visitor: &EntryContext<'_>) -> Option<(DefId,
         {
             // non-local main imports are handled below
             if let Some(def_id) = def_id.as_local()
-                && matches!(tcx.hir().find_by_def_id(def_id), Some(Node::ForeignItem(_)))
+                && matches!(tcx.opt_hir_node_by_def_id(def_id), Some(Node::ForeignItem(_)))
             {
                 tcx.sess.emit_err(ExternMain { span: tcx.def_span(def_id) });
                 return None;

compiler/rustc_passes/src/lang_items.rs

@@ -155,7 +155,7 @@ impl<'tcx> LanguageItemCollector<'tcx> {
         // have minimum requirements.
 
         if let hir::Node::Item(hir::Item { kind, span: item_span, .. }) =
-            self.tcx.hir().get_by_def_id(item_def_id)
+            self.tcx.hir_node_by_def_id(item_def_id)
         {
             let (actual_num, generics_span) = match kind.generics() {
                 Some(generics) => (

compiler/rustc_passes/src/loops.rs

@@ -4,7 +4,6 @@ use rustc_hir as hir;
 use rustc_hir::def_id::{LocalDefId, LocalModDefId};
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::{Destination, Movability, Node};
-use rustc_middle::hir::map::Map;
 use rustc_middle::hir::nested_filter;
 use rustc_middle::query::Providers;
 use rustc_middle::ty::TyCtxt;
@@ -30,16 +29,16 @@ enum Context {
 }
 
 #[derive(Copy, Clone)]
-struct CheckLoopVisitor<'a, 'hir> {
+struct CheckLoopVisitor<'a, 'tcx> {
     sess: &'a Session,
-    hir_map: Map<'hir>,
+    tcx: TyCtxt<'tcx>,
     cx: Context,
 }
 
 fn check_mod_loops(tcx: TyCtxt<'_>, module_def_id: LocalModDefId) {
     tcx.hir().visit_item_likes_in_module(
         module_def_id,
-        &mut CheckLoopVisitor { sess: tcx.sess, hir_map: tcx.hir(), cx: Normal },
+        &mut CheckLoopVisitor { sess: tcx.sess, tcx, cx: Normal },
     );
 }
 
@@ -51,7 +50,7 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> {
     type NestedFilter = nested_filter::OnlyBodies;
 
     fn nested_visit_map(&mut self) -> Self::Map {
-        self.hir_map
+        self.tcx.hir()
     }
 
     fn visit_anon_const(&mut self, c: &'hir hir::AnonConst) {
@@ -136,13 +135,13 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> {
                     Err(hir::LoopIdError::UnresolvedLabel) => None,
                 };
 
-                if let Some(Node::Block(_)) = loop_id.and_then(|id| self.hir_map.find(id)) {
+                if let Some(Node::Block(_)) = loop_id.and_then(|id| self.tcx.opt_hir_node(id)) {
                     return;
                 }
 
                 if let Some(break_expr) = opt_expr {
                     let (head, loop_label, loop_kind) = if let Some(loop_id) = loop_id {
-                        match self.hir_map.expect_expr(loop_id).kind {
+                        match self.tcx.hir().expect_expr(loop_id).kind {
                             hir::ExprKind::Loop(_, label, source, sp) => {
                                 (Some(sp), label, Some(source))
                             }
@@ -188,7 +187,7 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> {
 
                 match destination.target_id {
                     Ok(loop_id) => {
-                        if let Node::Block(block) = self.hir_map.find(loop_id).unwrap() {
+                        if let Node::Block(block) = self.tcx.opt_hir_node(loop_id).unwrap() {
                             self.sess.emit_err(ContinueLabeledBlock {
                                 span: e.span,
                                 block_span: block.span,

compiler/rustc_passes/src/naked_functions.rs

@@ -35,7 +35,7 @@ fn check_mod_naked_functions(tcx: TyCtxt<'_>, module_def_id: LocalModDefId) {
             continue;
         }
 
-        let (fn_header, body_id) = match tcx.hir().get_by_def_id(def_id) {
+        let (fn_header, body_id) = match tcx.hir_node_by_def_id(def_id) {
             hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, _, body_id), .. })
             | hir::Node::TraitItem(hir::TraitItem {
                 kind: hir::TraitItemKind::Fn(sig, hir::TraitFn::Provided(body_id)),

compiler/rustc_passes/src/reachable.rs

@@ -115,7 +115,7 @@ impl<'tcx> ReachableContext<'tcx> {
             return false;
         };
 
-        match self.tcx.hir().find_by_def_id(def_id) {
+        match self.tcx.opt_hir_node_by_def_id(def_id) {
             Some(Node::Item(item)) => match item.kind {
                 hir::ItemKind::Fn(..) => item_might_be_inlined(self.tcx, def_id.into()),
                 _ => false,
@@ -146,7 +146,7 @@ impl<'tcx> ReachableContext<'tcx> {
                 continue;
             }
 
-            if let Some(ref item) = self.tcx.hir().find_by_def_id(search_item) {
+            if let Some(ref item) = self.tcx.opt_hir_node_by_def_id(search_item) {
                 self.propagate_node(item, search_item);
             }
         }

compiler/rustc_privacy/src/lib.rs

@@ -1783,7 +1783,7 @@ fn local_visibility(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Visibility {
         Some(vis) => *vis,
         None => {
             let hir_id = tcx.local_def_id_to_hir_id(def_id);
-            match tcx.hir().get(hir_id) {
+            match tcx.hir_node(hir_id) {
                 // Unique types created for closures participate in type privacy checking.
                 // They have visibilities inherited from the module they are defined in.
                 Node::Expr(hir::Expr { kind: hir::ExprKind::Closure{..}, .. })
@@ -1800,7 +1800,7 @@ fn local_visibility(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Visibility {
                 // Visibilities of trait impl items are inherited from their traits
                 // and are not filled in resolve.
                 Node::ImplItem(impl_item) => {
-                    match tcx.hir().get_by_def_id(tcx.hir().get_parent_item(hir_id).def_id) {
+                    match tcx.hir_node_by_def_id(tcx.hir().get_parent_item(hir_id).def_id) {
                         Node::Item(hir::Item {
                             kind: hir::ItemKind::Impl(hir::Impl { of_trait: Some(tr), .. }),
                             ..

compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs

@@ -103,7 +103,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
     /// to be the enclosing (async) block/function/closure
     fn describe_enclosure(&self, hir_id: hir::HirId) -> Option<&'static str> {
         let hir = self.tcx.hir();
-        let node = hir.find(hir_id)?;
+        let node = self.tcx.opt_hir_node(hir_id)?;
         match &node {
             hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, _, body_id), .. }) => {
                 self.describe_coroutine(*body_id).or_else(|| {

compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs

@@ -530,7 +530,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
 
         // FIXME: Add check for trait bound that is already present, particularly `?Sized` so we
         //        don't suggest `T: Sized + ?Sized`.
-        while let Some(node) = self.tcx.hir().find_by_def_id(body_id) {
+        while let Some(node) = self.tcx.opt_hir_node_by_def_id(body_id) {
             match node {
                 hir::Node::Item(hir::Item {
                     ident,
@@ -732,7 +732,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         let Some(typeck_results) = &self.typeck_results else {
             return false;
         };
-        let hir::Node::Expr(expr) = self.tcx.hir().get(*arg_hir_id) else {
+        let hir::Node::Expr(expr) = self.tcx.hir_node(*arg_hir_id) else {
             return false;
         };
         let Some(arg_ty) = typeck_results.expr_ty_adjusted_opt(expr) else {
@@ -785,7 +785,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                             kind:
                                 hir::ExprKind::AddrOf(hir::BorrowKind::Ref, hir::Mutability::Not, expr),
                             ..
-                        })) = self.tcx.hir().find(*arg_hir_id)
+                        })) = self.tcx.opt_hir_node(*arg_hir_id)
                         {
                             let derefs = "*".repeat(steps);
                             err.span_suggestion_verbose(
@@ -821,7 +821,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                     if self.predicate_may_hold(&obligation)
                         && self.predicate_must_hold_modulo_regions(&sized_obligation)
                     {
-                        let call_node = self.tcx.hir().get(*call_hir_id);
+                        let call_node = self.tcx.hir_node(*call_hir_id);
                         let msg = "consider dereferencing here";
                         let is_receiver = matches!(
                             call_node,
@@ -1046,7 +1046,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         let Res::Local(hir_id) = path.res else {
             return;
         };
-        let Some(hir::Node::Pat(pat)) = self.tcx.hir().find(hir_id) else {
+        let Some(hir::Node::Pat(pat)) = self.tcx.opt_hir_node(hir_id) else {
             return;
         };
         let Some(hir::Node::Local(hir::Local { ty: None, init: Some(init), .. })) =
@@ -1106,7 +1106,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         else {
             return false;
         };
-        let arg_node = self.tcx.hir().get(*arg_hir_id);
+        let arg_node = self.tcx.hir_node(*arg_hir_id);
         let Node::Expr(Expr { kind: hir::ExprKind::Path(_), .. }) = arg_node else { return false };
 
         let clone_trait = self.tcx.require_lang_item(LangItem::Clone, None);
@@ -1628,7 +1628,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             }
             if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind
                 && let Res::Local(hir_id) = path.res
-                && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(hir_id)
+                && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(hir_id)
                 && let Some(hir::Node::Local(local)) = self.tcx.hir().find_parent(binding.hir_id)
                 && let None = local.ty
                 && let Some(binding_expr) = local.init
@@ -1644,7 +1644,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
     fn suggest_remove_await(&self, obligation: &PredicateObligation<'tcx>, err: &mut Diagnostic) {
         let hir = self.tcx.hir();
         if let ObligationCauseCode::AwaitableExpr(hir_id) = obligation.cause.code().peel_derives()
-            && let hir::Node::Expr(expr) = hir.get(*hir_id)
+            && let hir::Node::Expr(expr) = self.tcx.hir_node(*hir_id)
         {
             // FIXME: use `obligation.predicate.kind()...trait_ref.self_ty()` to see if we have `()`
             // and if not maybe suggest doing something else? If we kept the expression around we
@@ -1794,7 +1794,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         trait_pred: ty::PolyTraitPredicate<'tcx>,
     ) -> bool {
         let hir = self.tcx.hir();
-        let node = hir.find_by_def_id(obligation.cause.body_id);
+        let node = self.tcx.opt_hir_node_by_def_id(obligation.cause.body_id);
         if let Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, _, body_id), .. })) = node
             && let hir::ExprKind::Block(blk, _) = &hir.body(*body_id).value.kind
             && sig.decl.output.span().overlaps(span)
@@ -1829,9 +1829,8 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
     }
 
     fn return_type_span(&self, obligation: &PredicateObligation<'tcx>) -> Option<Span> {
-        let hir = self.tcx.hir();
         let Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, ..), .. })) =
-            hir.find_by_def_id(obligation.cause.body_id)
+            self.tcx.opt_hir_node_by_def_id(obligation.cause.body_id)
         else {
             return None;
         };
@@ -1923,7 +1922,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         }
 
         let hir = self.tcx.hir();
-        let node = hir.find_by_def_id(obligation.cause.body_id);
+        let node = self.tcx.opt_hir_node_by_def_id(obligation.cause.body_id);
         if let Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. })) =
             node
         {
@@ -2041,7 +2040,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         let ty::FnPtr(found) = found.kind() else {
             return;
         };
-        let Some(Node::Expr(arg)) = self.tcx.hir().find(*arg_hir_id) else {
+        let Some(Node::Expr(arg)) = self.tcx.opt_hir_node(*arg_hir_id) else {
             return;
         };
         let hir::ExprKind::Path(path) = arg.kind else {
@@ -2986,7 +2985,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             }
             ObligationCauseCode::VariableType(hir_id) => {
                 let parent_node = self.tcx.hir().parent_id(hir_id);
-                match self.tcx.hir().find(parent_node) {
+                match self.tcx.opt_hir_node(parent_node) {
                     Some(Node::Local(hir::Local { ty: Some(ty), .. })) => {
                         err.span_suggestion_verbose(
                             ty.span.shrink_to_lo(),
@@ -3130,7 +3129,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                     "all values captured by value by a closure must have a statically known size",
                 );
                 let hir::ExprKind::Closure(closure) =
-                    self.tcx.hir().get_by_def_id(closure_def_id).expect_expr().kind
+                    self.tcx.hir_node_by_def_id(closure_def_id).expect_expr().kind
                 else {
                     bug!("expected closure in SizedClosureCapture obligation");
                 };
@@ -3701,8 +3700,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
         call_hir_id: HirId,
     ) {
         let tcx = self.tcx;
-        let hir = tcx.hir();
+        if let Some(Node::Expr(expr)) = tcx.opt_hir_node(arg_hir_id)
-        if let Some(Node::Expr(expr)) = hir.find(arg_hir_id)
             && let Some(typeck_results) = &self.typeck_results
         {
             if let hir::Expr { kind: hir::ExprKind::Block(block, _), .. } = expr {
@@ -3735,7 +3733,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                             && let hir::ExprKind::Closure(hir::Closure {
                                 body, fn_decl_span, ..
                             }) = value.kind
-                            && let body = hir.body(*body)
+                            && let body = tcx.hir().body(*body)
                             && !matches!(body.value.kind, hir::ExprKind::Block(..))
                         {
                             // Check if the failed predicate was an expectation of a closure type
@@ -3818,9 +3816,9 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             }
             if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind
                 && let hir::Path { res: Res::Local(hir_id), .. } = path
-                && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id)
+                && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(*hir_id)
                 && let parent_hir_id = self.tcx.hir().parent_id(binding.hir_id)
-                && let Some(hir::Node::Local(local)) = self.tcx.hir().find(parent_hir_id)
+                && let Some(hir::Node::Local(local)) = self.tcx.opt_hir_node(parent_hir_id)
                 && let Some(binding_expr) = local.init
             {
                 // If the expression we're calling on is a binding, we want to point at the
@@ -3831,7 +3829,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                 self.point_at_chain(expr, typeck_results, type_diffs, param_env, err);
             }
         }
-        let call_node = hir.find(call_hir_id);
+        let call_node = tcx.opt_hir_node(call_hir_id);
         if let Some(Node::Expr(hir::Expr {
             kind: hir::ExprKind::MethodCall(path, rcvr, ..), ..
         })) = call_node
@@ -3841,7 +3839,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             }
         }
 
-        if let Some(Node::Expr(expr)) = hir.find(call_hir_id) {
+        if let Some(Node::Expr(expr)) = tcx.opt_hir_node(call_hir_id) {
             if let hir::ExprKind::Call(hir::Expr { span, .. }, _)
             | hir::ExprKind::MethodCall(
                 hir::PathSegment { ident: Ident { span, .. }, .. },
@@ -4002,7 +4000,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                             continue;
                         };
                         let hir = tcx.hir();
-                        let node = hir.get_by_def_id(hir.get_parent_item(expr.hir_id).def_id);
+                        let node = tcx.hir_node_by_def_id(hir.get_parent_item(expr.hir_id).def_id);
 
                         let pred = ty::Binder::dummy(ty::TraitPredicate {
                             trait_ref: ty::TraitRef::from_lang_item(
@@ -4078,7 +4076,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
 
             if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind
                 && let hir::Path { res: Res::Local(hir_id), .. } = path
-                && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id)
+                && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(*hir_id)
                 && let Some(parent) = self.tcx.hir().find_parent(binding.hir_id)
             {
                 // We've reached the root of the method call chain...
@@ -4457,7 +4455,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             }
             return;
         };
-        let Some(hir::Node::TraitItem(item)) = self.tcx.hir().find_by_def_id(fn_def_id) else {
+        let Some(hir::Node::TraitItem(item)) = self.tcx.opt_hir_node_by_def_id(fn_def_id) else {
             return;
         };
 
@@ -4778,7 +4776,7 @@ pub fn suggest_desugaring_async_fn_to_impl_future_in_trait<'tcx>(
         return None;
     };
 
-    let future = tcx.hir().get_by_def_id(opaque_def_id).expect_item().expect_opaque_ty();
+    let future = tcx.hir_node_by_def_id(opaque_def_id).expect_item().expect_opaque_ty();
     let Some(hir::GenericBound::LangItemTrait(_, _, _, generics)) = future.bounds.get(0) else {
         // `async fn` should always lower to a lang item bound... but don't ICE.
         return None;

compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs

@@ -984,13 +984,13 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
     fn fn_arg_obligation(&self, obligation: &PredicateObligation<'tcx>) -> bool {
         if let ObligationCauseCode::FunctionArgumentObligation { arg_hir_id, .. } =
             obligation.cause.code()
-            && let Some(Node::Expr(arg)) = self.tcx.hir().find(*arg_hir_id)
+            && let Some(Node::Expr(arg)) = self.tcx.opt_hir_node(*arg_hir_id)
             && let arg = arg.peel_borrows()
             && let hir::ExprKind::Path(hir::QPath::Resolved(
                 None,
                 hir::Path { res: hir::def::Res::Local(hir_id), .. },
             )) = arg.kind
-            && let Some(Node::Pat(pat)) = self.tcx.hir().find(*hir_id)
+            && let Some(Node::Pat(pat)) = self.tcx.opt_hir_node(*hir_id)
             && let Some(preds) = self.reported_trait_errors.borrow().get(&pat.span)
             && preds.contains(&obligation.predicate)
         {
@@ -1028,7 +1028,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
             }
         }
         let hir_id = self.tcx.local_def_id_to_hir_id(obligation.cause.body_id);
-        let body_id = match self.tcx.hir().find(hir_id) {
+        let body_id = match self.tcx.opt_hir_node(hir_id) {
             Some(hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(_, _, body_id), .. })) => {
                 body_id
             }
@@ -1154,7 +1154,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
 
             if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind
                 && let hir::Path { res: hir::def::Res::Local(hir_id), .. } = path
-                && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id)
+                && let Some(hir::Node::Pat(binding)) = self.tcx.opt_hir_node(*hir_id)
                 && let Some(parent) = self.tcx.hir().find_parent(binding.hir_id)
             {
                 // We've reached the root of the method call chain...
@@ -2499,7 +2499,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
                                 ident: trait_name,
                                 kind: hir::ItemKind::Trait(_, _, _, _, trait_item_refs),
                                 ..
-                            })) = self.tcx.hir().find_by_def_id(local_def_id)
+                            })) = self.tcx.opt_hir_node_by_def_id(local_def_id)
                             && let Some(method_ref) = trait_item_refs
                                 .iter()
                                 .find(|item_ref| item_ref.ident == *assoc_item_name)

compiler/rustc_ty_utils/src/assoc.rs

@@ -345,8 +345,7 @@ fn associated_type_for_impl_trait_in_impl(
     let impl_local_def_id = tcx.local_parent(impl_fn_def_id);
 
     let decl = tcx
-        .hir()
+        .opt_hir_node_by_def_id(impl_fn_def_id)
-        .find_by_def_id(impl_fn_def_id)
         .expect("expected item")
         .fn_decl()
         .expect("expected decl");

compiler/rustc_ty_utils/src/implied_bounds.rs

@@ -161,7 +161,7 @@ fn assumed_wf_types<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> &'tcx [(Ty<'
 }
 
 fn fn_sig_spans(tcx: TyCtxt<'_>, def_id: LocalDefId) -> impl Iterator<Item = Span> + '_ {
-    let node = tcx.hir().get(tcx.local_def_id_to_hir_id(def_id));
+    let node = tcx.hir_node_by_def_id(def_id);
     if let Some(decl) = node.fn_decl() {
         decl.inputs.iter().map(|ty| ty.span).chain(iter::once(decl.output.span()))
     } else {

compiler/rustc_ty_utils/src/sig_types.rs

@@ -28,7 +28,7 @@ pub(crate) fn walk_types<'tcx, V: SpannedTypeVisitor<'tcx>>(
         // Walk over the signature of the function
         DefKind::AssocFn | DefKind::Fn => {
             let ty_sig = tcx.fn_sig(item).instantiate_identity();
-            let hir_sig = tcx.hir().get_by_def_id(item).fn_decl().unwrap();
+            let hir_sig = tcx.hir_node_by_def_id(item).fn_decl().unwrap();
             // Walk over the inputs and outputs manually in order to get good spans for them.
             visitor.visit(hir_sig.output.span(), ty_sig.output());
             for (hir, ty) in hir_sig.inputs.iter().zip(ty_sig.inputs().iter()) {
@@ -42,7 +42,7 @@ pub(crate) fn walk_types<'tcx, V: SpannedTypeVisitor<'tcx>>(
         DefKind::TyAlias {..} | DefKind::AssocTy |
         // Walk over the type of the item
         DefKind::Static(_) | DefKind::Const | DefKind::AssocConst | DefKind::AnonConst => {
-            let span = match tcx.hir().get_by_def_id(item).ty() {
+            let span = match tcx.hir_node_by_def_id(item).ty() {
                 Some(ty) => ty.span,
                 _ => tcx.def_span(item),
             };
@@ -70,11 +70,11 @@ pub(crate) fn walk_types<'tcx, V: SpannedTypeVisitor<'tcx>>(
         DefKind::InlineConst | DefKind::Closure => {}
         DefKind::Impl { of_trait } => {
             if of_trait {
-                let span = tcx.hir().get_by_def_id(item).expect_item().expect_impl().of_trait.unwrap().path.span;
+                let span = tcx.hir_node_by_def_id(item).expect_item().expect_impl().of_trait.unwrap().path.span;
                 let args = &tcx.impl_trait_ref(item).unwrap().instantiate_identity().args[1..];
                 visitor.visit(span, args)?;
             }
-            let span = match tcx.hir().get_by_def_id(item).ty() {
+            let span = match tcx.hir_node_by_def_id(item).ty() {
                 Some(ty) => ty.span,
                 _ => tcx.def_span(item),
             };

compiler/rustc_ty_utils/src/ty.rs

@@ -74,7 +74,7 @@ fn sized_constraint_for_ty<'tcx>(
 }
 
 fn defaultness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> hir::Defaultness {
-    match tcx.hir().get_by_def_id(def_id) {
+    match tcx.hir_node_by_def_id(def_id) {
         hir::Node::Item(hir::Item { kind: hir::ItemKind::Impl(impl_), .. }) => impl_.defaultness,
         hir::Node::ImplItem(hir::ImplItem { defaultness, .. })
         | hir::Node::TraitItem(hir::TraitItem { defaultness, .. }) => *defaultness,
@@ -300,7 +300,7 @@ fn issue33140_self_ty(tcx: TyCtxt<'_>, def_id: DefId) -> Option<EarlyBinder<Ty<'
 
 /// Check if a function is async.
 fn asyncness(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Asyncness {
-    let node = tcx.hir().get_by_def_id(def_id);
+    let node = tcx.hir_node_by_def_id(def_id);
     node.fn_sig().map_or(ty::Asyncness::No, |sig| match sig.header.asyncness {
         hir::IsAsync::Async(_) => ty::Asyncness::Yes,
         hir::IsAsync::NotAsync => ty::Asyncness::No,

src/librustdoc/clean/mod.rs

@@ -1596,7 +1596,6 @@ fn first_non_private<'tcx>(
         // Absolute paths are not. We start from the parent of the item.
         [.., parent, leaf] => (parent.res.opt_def_id()?.as_local()?, leaf.ident),
     };
-    let hir = cx.tcx.hir();
     // First we try to get the `DefId` of the item.
     for child in
         cx.tcx.module_children_local(parent_def_id).iter().filter(move |c| c.ident == ident)
@@ -1612,7 +1611,8 @@ fn first_non_private<'tcx>(
             'reexps: for reexp in child.reexport_chain.iter() {
                 if let Some(use_def_id) = reexp.id()
                     && let Some(local_use_def_id) = use_def_id.as_local()
-                    && let Some(hir::Node::Item(item)) = hir.find_by_def_id(local_use_def_id)
+                    && let Some(hir::Node::Item(item)) =
+                        cx.tcx.opt_hir_node_by_def_id(local_use_def_id)
                     && !item.ident.name.is_empty()
                     && let hir::ItemKind::Use(path, _) = item.kind
                 {

src/librustdoc/clean/utils.rs

@@ -439,7 +439,7 @@ fn print_const_with_custom_print_scalar<'tcx>(
 }
 
 pub(crate) fn is_literal_expr(tcx: TyCtxt<'_>, hir_id: hir::HirId) -> bool {
-    if let hir::Node::Expr(expr) = tcx.hir().get(hir_id) {
+    if let hir::Node::Expr(expr) = tcx.hir_node(hir_id) {
         if let hir::ExprKind::Lit(_) = &expr.kind {
             return true;
         }
@@ -641,7 +641,6 @@ pub(crate) fn inherits_doc_hidden(
     mut def_id: LocalDefId,
     stop_at: Option<LocalDefId>,
 ) -> bool {
-    let hir = tcx.hir();
     while let Some(id) = tcx.opt_local_parent(def_id) {
         if let Some(stop_at) = stop_at
             && id == stop_at
@@ -651,7 +650,7 @@ pub(crate) fn inherits_doc_hidden(
         def_id = id;
         if tcx.is_doc_hidden(def_id.to_def_id()) {
             return true;
-        } else if let Some(node) = hir.find_by_def_id(def_id)
+        } else if let Some(node) = tcx.opt_hir_node_by_def_id(def_id)
             && matches!(node, hir::Node::Item(hir::Item { kind: hir::ItemKind::Impl(_), .. }),)
         {
             // `impl` blocks stand a bit on their own: unless they have `#[doc(hidden)]` directly

src/librustdoc/html/render/span_map.rs

@@ -94,7 +94,7 @@ impl<'tcx> SpanMapVisitor<'tcx> {
 
     /// Used to generate links on items' definition to go to their documentation page.
     pub(crate) fn extract_info_from_hir_id(&mut self, hir_id: HirId) {
-        if let Some(Node::Item(item)) = self.tcx.hir().find(hir_id) {
+        if let Some(Node::Item(item)) = self.tcx.opt_hir_node(hir_id) {
             if let Some(span) = self.tcx.def_ident_span(item.owner_id) {
                 let cspan = clean::Span::new(span);
                 // If the span isn't from the current crate, we ignore it.
@@ -177,7 +177,7 @@ impl<'tcx> Visitor<'tcx> for SpanMapVisitor<'tcx> {
         if !span.overlaps(m.spans.inner_span) {
             // Now that we confirmed it's a file import, we want to get the span for the module
             // name only and not all the "mod foo;".
-            if let Some(Node::Item(item)) = self.tcx.hir().find(id) {
+            if let Some(Node::Item(item)) = self.tcx.opt_hir_node(id) {
                 self.matches.insert(
                     item.ident.span,
                     LinkFromSrc::Local(clean::Span::new(m.spans.inner_span)),

src/librustdoc/passes/check_doc_test_visibility.rs

@@ -80,7 +80,7 @@ pub(crate) fn should_have_doc_example(cx: &DocContext<'_>, item: &clean::Item) -
 
     // check if parent is trait impl
     if let Some(parent_def_id) = cx.tcx.opt_local_parent(def_id)
-        && let Some(parent_node) = cx.tcx.hir().find_by_def_id(parent_def_id)
+        && let Some(parent_node) = cx.tcx.opt_hir_node_by_def_id(parent_def_id)
         && matches!(
             parent_node,
             hir::Node::Item(hir::Item {

src/librustdoc/visit_ast.rs

@@ -275,7 +275,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
         };
 
         let is_private = !self.cx.cache.effective_visibilities.is_directly_public(tcx, ori_res_did);
-        let item = tcx.hir().get_by_def_id(res_did);
+        let item = tcx.hir_node_by_def_id(res_did);
 
         if !please_inline {
             let inherits_hidden = !document_hidden && inherits_doc_hidden(tcx, res_did, None);

src/tools/clippy/clippy_lints/src/absolute_paths.rs

@@ -62,7 +62,7 @@ impl LateLintPass<'_> for AbsolutePaths {
         } = self;
 
         if !path.span.from_expansion()
-            && let Some(node) = cx.tcx.hir().find(hir_id)
+            && let Some(node) = cx.tcx.opt_hir_node(hir_id)
             && !matches!(node, Node::Item(item) if matches!(item.kind, ItemKind::Use(_, _)))
             && let [first, rest @ ..] = path.segments
             // Handle `::std`

src/tools/clippy/clippy_lints/src/casts/cast_slice_different_sizes.rs

@@ -69,7 +69,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'tcx>, msrv: &Msrv
 fn is_child_of_cast(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
     let map = cx.tcx.hir();
     if let Some(parent_id) = map.opt_parent_id(expr.hir_id)
-        && let Some(parent) = map.find(parent_id)
+        && let Some(parent) = cx.tcx.opt_hir_node(parent_id)
     {
         let expr = match parent {
             Node::Block(block) => {

src/tools/clippy/clippy_lints/src/dereference.rs

@@ -1090,7 +1090,7 @@ fn report<'tcx>(
                 if parent_id == data.first_expr.hir_id {
                     return;
                 }
-                (cx.tcx.hir().get(parent_id).expect_expr().span, true)
+                (cx.tcx.hir_node(parent_id).expect_expr().span, true)
             } else {
                 (expr.span, false)
             };

src/tools/clippy/clippy_lints/src/derivable_impls.rs

@@ -195,7 +195,7 @@ impl<'tcx> LateLintPass<'tcx> for DerivableImpls {
             && let Some(def_id) = trait_ref.trait_def_id()
             && cx.tcx.is_diagnostic_item(sym::Default, def_id)
             && let impl_item_hir = child.id.hir_id()
-            && let Some(Node::ImplItem(impl_item)) = cx.tcx.hir().find(impl_item_hir)
+            && let Some(Node::ImplItem(impl_item)) = cx.tcx.opt_hir_node(impl_item_hir)
             && let ImplItemKind::Fn(_, b) = &impl_item.kind
             && let Body { value: func_expr, .. } = cx.tcx.hir().body(*b)
             && let &Adt(adt_def, args) = cx.tcx.type_of(item.owner_id).instantiate_identity().kind()

src/tools/clippy/clippy_lints/src/empty_drop.rs

@@ -42,7 +42,7 @@ impl LateLintPass<'_> for EmptyDrop {
         }) = item.kind
             && trait_ref.trait_def_id() == cx.tcx.lang_items().drop_trait()
             && let impl_item_hir = child.id.hir_id()
-            && let Some(Node::ImplItem(impl_item)) = cx.tcx.hir().find(impl_item_hir)
+            && let Some(Node::ImplItem(impl_item)) = cx.tcx.opt_hir_node(impl_item_hir)
             && let ImplItemKind::Fn(_, b) = &impl_item.kind
             && let Body { value: func_expr, .. } = cx.tcx.hir().body(*b)
             && let func_expr = peel_blocks(func_expr)

src/tools/clippy/clippy_lints/src/escape.rs

@@ -5,7 +5,7 @@ use rustc_infer::infer::TyCtxtInferExt;
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::mir::FakeReadCause;
 use rustc_middle::ty::layout::LayoutOf;
-use rustc_middle::ty::{self, TraitRef, Ty};
+use rustc_middle::ty::{self, TraitRef, Ty, TyCtxt};
 use rustc_session::impl_lint_pass;
 use rustc_span::def_id::LocalDefId;
 use rustc_span::symbol::kw;
@@ -76,7 +76,7 @@ impl<'tcx> LateLintPass<'tcx> for BoxedLocal {
             .hir()
             .get_parent_item(cx.tcx.local_def_id_to_hir_id(fn_def_id))
             .def_id;
-        let parent_node = cx.tcx.hir().find_by_def_id(parent_id);
+        let parent_node = cx.tcx.opt_hir_node_by_def_id(parent_id);
 
         let mut trait_self_ty = None;
         if let Some(Node::Item(item)) = parent_node {
@@ -122,8 +122,8 @@ impl<'tcx> LateLintPass<'tcx> for BoxedLocal {
 }
 
 // TODO: Replace with Map::is_argument(..) when it's fixed
-fn is_argument(map: rustc_middle::hir::map::Map<'_>, id: HirId) -> bool {
+fn is_argument(tcx: TyCtxt<'_>, id: HirId) -> bool {
-    match map.find(id) {
+    match tcx.opt_hir_node(id) {
         Some(Node::Pat(Pat {
             kind: PatKind::Binding(..),
             ..
@@ -131,7 +131,7 @@ fn is_argument(map: rustc_middle::hir::map::Map<'_>, id: HirId) -> bool {
         _ => return false,
     }
 
-    matches!(map.find_parent(id), Some(Node::Param(_)))
+    matches!(tcx.hir().find_parent(id), Some(Node::Param(_)))
 }
 
 impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
@@ -154,7 +154,7 @@ impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
     fn mutate(&mut self, cmt: &PlaceWithHirId<'tcx>, _: HirId) {
         if cmt.place.projections.is_empty() {
             let map = &self.cx.tcx.hir();
-            if is_argument(*map, cmt.hir_id) {
+            if is_argument(self.cx.tcx, cmt.hir_id) {
                 // Skip closure arguments
                 let parent_id = map.parent_id(cmt.hir_id);
                 if let Some(Node::Expr(..)) = map.find_parent(parent_id) {

src/tools/clippy/clippy_lints/src/exit.rs

@@ -46,7 +46,7 @@ impl<'tcx> LateLintPass<'tcx> for Exit {
             && let Some(def_id) = cx.qpath_res(path, path_expr.hir_id).opt_def_id()
             && cx.tcx.is_diagnostic_item(sym::process_exit, def_id)
             && let parent = cx.tcx.hir().get_parent_item(e.hir_id).def_id
-            && let Some(Node::Item(Item{kind: ItemKind::Fn(..), ..})) = cx.tcx.hir().find_by_def_id(parent)
+            && let Some(Node::Item(Item{kind: ItemKind::Fn(..), ..})) = cx.tcx.opt_hir_node_by_def_id(parent)
             // If the next item up is a function we check if it is an entry point
             // and only then emit a linter warning
             && !is_entrypoint_fn(cx, parent.to_def_id())

src/tools/clippy/clippy_lints/src/explicit_write.rs

@@ -111,7 +111,7 @@ fn look_in_block<'tcx, 'hir>(cx: &LateContext<'tcx>, kind: &'tcx ExprKind<'hir>)
         // Find id of the local that expr_end_of_block resolves to
         && let ExprKind::Path(QPath::Resolved(None, expr_path)) = expr_end_of_block.kind
         && let Res::Local(expr_res) = expr_path.res
-        && let Some(Node::Pat(res_pat)) = cx.tcx.hir().find(expr_res)
+        && let Some(Node::Pat(res_pat)) = cx.tcx.opt_hir_node(expr_res)
 
         // Find id of the local we found in the block
         && let PatKind::Binding(BindingAnnotation::NONE, local_hir_id, _ident, None) = local.pat.kind

src/tools/clippy/clippy_lints/src/functions/result.rs

@@ -92,7 +92,7 @@ fn check_result_large_err<'tcx>(cx: &LateContext<'tcx>, err_ty: Ty<'tcx>, hir_ty
             .expect("already checked this is adt")
             .did()
             .as_local()
-        && let Some(hir::Node::Item(item)) = cx.tcx.hir().find_by_def_id(local_def_id)
+        && let Some(hir::Node::Item(item)) = cx.tcx.opt_hir_node_by_def_id(local_def_id)
         && let hir::ItemKind::Enum(ref def, _) = item.kind
     {
         let variants_size = AdtVariantInfo::new(cx, *adt, subst);

src/tools/clippy/clippy_lints/src/index_refutable_slice.rs

@@ -248,7 +248,7 @@ impl<'a, 'tcx> Visitor<'tcx> for SliceIndexLintingVisitor<'a, 'tcx> {
 
                 // Checking for slice indexing
                 && let parent_id = map.parent_id(expr.hir_id)
-                && let Some(hir::Node::Expr(parent_expr)) = map.find(parent_id)
+                && let Some(hir::Node::Expr(parent_expr)) = cx.tcx.opt_hir_node(parent_id)
                 && let hir::ExprKind::Index(_, index_expr, _) = parent_expr.kind
                 && let Some(Constant::Int(index_value)) = constant(cx, cx.typeck_results(), index_expr)
                 && let Ok(index_value) = index_value.try_into()
@@ -256,7 +256,7 @@ impl<'a, 'tcx> Visitor<'tcx> for SliceIndexLintingVisitor<'a, 'tcx> {
 
                 // Make sure that this slice index is read only
                 && let maybe_addrof_id = map.parent_id(parent_id)
-                && let Some(hir::Node::Expr(maybe_addrof_expr)) = map.find(maybe_addrof_id)
+                && let Some(hir::Node::Expr(maybe_addrof_expr)) = cx.tcx.opt_hir_node(maybe_addrof_id)
                 && let hir::ExprKind::AddrOf(_kind, hir::Mutability::Not, _inner_expr) = maybe_addrof_expr.kind
             {
                 use_info.index_use.push((index_value, map.span(parent_expr.hir_id)));

src/tools/clippy/clippy_lints/src/inherent_impl.rs

@@ -122,7 +122,7 @@ fn get_impl_span(cx: &LateContext<'_>, id: LocalDefId) -> Option<Span> {
         kind: ItemKind::Impl(impl_item),
         span,
         ..
-    }) = cx.tcx.hir().get(id)
+    }) = cx.tcx.hir_node(id)
     {
         (!span.from_expansion()
             && impl_item.generics.params.is_empty()

src/tools/clippy/clippy_lints/src/len_zero.rs

@@ -147,7 +147,7 @@ impl<'tcx> LateLintPass<'tcx> for LenZero {
             && let Some(output) =
                 parse_len_output(cx, cx.tcx.fn_sig(item.owner_id).instantiate_identity().skip_binder())
         {
-            let (name, kind) = match cx.tcx.hir().find(ty_hir_id) {
+            let (name, kind) = match cx.tcx.opt_hir_node(ty_hir_id) {
                 Some(Node::ForeignItem(x)) => (x.ident.name, "extern type"),
                 Some(Node::Item(x)) => match x.kind {
                     ItemKind::Struct(..) => (x.ident.name, "struct"),

src/tools/clippy/clippy_lints/src/lifetimes.rs

@@ -195,7 +195,7 @@ fn check_fn_inner<'tcx>(
             .iter()
             // In principle, the result of the call to `Node::ident` could be `unwrap`ped, as `DefId` should refer to a
             // `Node::GenericParam`.
-            .filter_map(|&def_id| cx.tcx.hir().get_by_def_id(def_id).ident())
+            .filter_map(|&def_id| cx.tcx.hir_node_by_def_id(def_id).ident())
             .map(|ident| ident.to_string())
             .collect::<Vec<_>>()
             .join(", ");

src/tools/clippy/clippy_lints/src/loops/mut_range_bound.rs

@@ -40,7 +40,7 @@ fn mut_warn_with_span(cx: &LateContext<'_>, span: Option<Span>) {
 
 fn check_for_mutability(cx: &LateContext<'_>, bound: &Expr<'_>) -> Option<HirId> {
     if let Some(hir_id) = path_to_local(bound)
-        && let Node::Pat(pat) = cx.tcx.hir().get(hir_id)
+        && let Node::Pat(pat) = cx.tcx.hir_node(hir_id)
         && let PatKind::Binding(BindingAnnotation::MUT, ..) = pat.kind
     {
         return Some(hir_id);

src/tools/clippy/clippy_lints/src/loops/same_item_push.rs

@@ -58,12 +58,12 @@ pub(super) fn check<'tcx>(
                 match cx.qpath_res(qpath, pushed_item.hir_id) {
                     // immutable bindings that are initialized with literal or constant
                     Res::Local(hir_id) => {
-                        let node = cx.tcx.hir().get(hir_id);
+                        let node = cx.tcx.hir_node(hir_id);
                         if let Node::Pat(pat) = node
                             && let PatKind::Binding(bind_ann, ..) = pat.kind
                             && !matches!(bind_ann, BindingAnnotation(_, Mutability::Mut))
                             && let parent_node = cx.tcx.hir().parent_id(hir_id)
-                            && let Some(Node::Local(parent_let_expr)) = cx.tcx.hir().find(parent_node)
+                            && let Some(Node::Local(parent_let_expr)) = cx.tcx.opt_hir_node(parent_node)
                             && let Some(init) = parent_let_expr.init
                         {
                             match init.kind {

src/tools/clippy/clippy_lints/src/manual_async_fn.rs

@@ -58,7 +58,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualAsyncFn {
             && block.stmts.is_empty()
             && let Some(closure_body) = desugared_async_block(cx, block)
             && let Node::Item(Item {vis_span, ..}) | Node::ImplItem(ImplItem {vis_span, ..}) =
-                cx.tcx.hir().get_by_def_id(def_id)
+                cx.tcx.hir_node_by_def_id(def_id)
         {
             let header_span = span.with_hi(ret_ty.span.hi());
 

src/tools/clippy/clippy_lints/src/manual_rem_euclid.rs

@@ -76,7 +76,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualRemEuclid {
             // Also ensures the const is nonzero since zero can't be a divisor
             && const1 == const2 && const2 == const3
             && let Some(hir_id) = path_to_local(expr3)
-            && let Some(Node::Pat(_)) = cx.tcx.hir().find(hir_id)
+            && let Some(Node::Pat(_)) = cx.tcx.opt_hir_node(hir_id)
         {
             // Apply only to params or locals with annotated types
             match cx.tcx.hir().find_parent(hir_id) {

src/tools/clippy/clippy_lints/src/methods/filter_next.rs

@@ -44,7 +44,7 @@ pub(super) fn check<'tcx>(
             // add note if not multi-line
             span_lint_and_then(cx, FILTER_NEXT, expr.span, msg, |diag| {
                 let (applicability, pat) = if let Some(id) = path_to_local(recv)
-                    && let Some(hir::Node::Pat(pat)) = cx.tcx.hir().find(id)
+                    && let Some(hir::Node::Pat(pat)) = cx.tcx.opt_hir_node(id)
                     && let hir::PatKind::Binding(BindingAnnotation(_, Mutability::Not), _, ident, _) = pat.kind
                 {
                     (Applicability::Unspecified, Some((pat.span, ident)))