Rollup merge of #99311 - kckeiks:clean-up-body-owner-methods, r=cjgillot

change maybe_body_owned_by to take local def id

Issue https://github.com/rust-lang/rust/issues/96341
r? `@cjgillot`

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -353,9 +353,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
         // We use the statements were the binding was initialized, and inspect the HIR to look
         // for the branching codepaths that aren't covered, to point at them.
-        let hir_id = self.mir_hir_id();
         let map = self.infcx.tcx.hir();
-        let body_id = map.body_owned_by(hir_id);
+        let body_id = map.body_owned_by(self.mir_def_id());
         let body = map.body(body_id);
 
         let mut visitor = ConditionVisitor { spans: &spans, name: &name, errors: vec![] };

compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs

@@ -853,7 +853,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
         let closure_id = self.mir_hir_id();
         let fn_call_id = hir.get_parent_node(closure_id);
         let node = hir.get(fn_call_id);
-        let item_id = hir.enclosing_body_owner(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,
         // we point at the `fn` definition argument...
@@ -864,7 +864,6 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                 .filter(|(_, arg)| arg.hir_id == closure_id)
                 .map(|(pos, _)| pos)
                 .next();
-            let def_id = hir.local_def_id(item_id);
             let tables = self.infcx.tcx.typeck(def_id);
             if let Some(ty::FnDef(def_id, _)) =
                 tables.node_type_opt(func.hir_id).as_ref().map(|ty| ty.kind())

compiler/rustc_driver/src/pretty.rs

@@ -328,7 +328,7 @@ impl<'tcx> pprust_hir::PpAnn for TypedAnnotation<'tcx> {
             let typeck_results = self.maybe_typeck_results.get().or_else(|| {
                 self.tcx
                     .hir()
-                    .maybe_body_owned_by(self.tcx.hir().local_def_id_to_hir_id(expr.hir_id.owner))
+                    .maybe_body_owned_by(expr.hir_id.owner)
                     .map(|body_id| self.tcx.typeck_body(body_id))
             });
 

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

@@ -49,10 +49,10 @@ pub fn find_param_with_region<'tcx>(
     };
 
     let hir = &tcx.hir();
-    let hir_id = hir.local_def_id_to_hir_id(id.as_local()?);
-    let body_id = hir.maybe_body_owned_by(hir_id)?;
-    let body = hir.body(body_id);
+    let def_id = id.as_local()?;
+    let hir_id = hir.local_def_id_to_hir_id(def_id);
 
+    // FIXME: use def_kind
     // Don't perform this on closures
     match hir.get(hir_id) {
         hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Closure { .. }, .. }) => {
@@ -61,11 +61,14 @@ pub fn find_param_with_region<'tcx>(
         _ => {}
     }
 
+    let body_id = hir.maybe_body_owned_by(def_id)?;
+
     let owner_id = hir.body_owner(body_id);
     let fn_decl = hir.fn_decl_by_hir_id(owner_id).unwrap();
     let poly_fn_sig = tcx.fn_sig(id);
 
     let fn_sig = tcx.liberate_late_bound_regions(id, poly_fn_sig);
+    let body = hir.body(body_id);
     body.params
         .iter()
         .take(if fn_sig.c_variadic {

compiler/rustc_metadata/src/rmeta/encoder.rs

@@ -1616,7 +1616,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
     fn encode_info_for_anon_const(&mut self, id: hir::HirId) {
         let def_id = self.tcx.hir().local_def_id(id);
         debug!("EncodeContext::encode_info_for_anon_const({:?})", def_id);
-        let body_id = self.tcx.hir().body_owned_by(id);
+        let body_id = self.tcx.hir().body_owned_by(def_id);
         let const_data = self.encode_rendered_const_for_body(body_id);
         let qualifs = self.tcx.mir_const_qualif(def_id);
 

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

@@ -396,10 +396,10 @@ impl<'hir> Map<'hir> {
         }
     }
 
-    pub fn enclosing_body_owner(self, hir_id: HirId) -> HirId {
+    pub fn enclosing_body_owner(self, hir_id: HirId) -> LocalDefId {
         for (parent, _) in self.parent_iter(hir_id) {
-            if let Some(body) = self.maybe_body_owned_by(parent) {
-                return self.body_owner(body);
+            if let Some(body) = self.find(parent).map(associated_body).flatten() {
+                return self.body_owner_def_id(body);
             }
         }
 
@@ -419,19 +419,20 @@ impl<'hir> Map<'hir> {
         self.local_def_id(self.body_owner(id))
     }
 
-    /// Given a `HirId`, returns the `BodyId` associated with it,
+    /// 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, hir_id: HirId) -> Option<BodyId> {
-        self.find(hir_id).map(associated_body).flatten()
+    pub fn maybe_body_owned_by(self, id: LocalDefId) -> Option<BodyId> {
+        self.get_if_local(id.to_def_id()).map(associated_body).flatten()
     }
 
     /// Given a body owner's id, returns the `BodyId` associated with it.
-    pub fn body_owned_by(self, id: HirId) -> BodyId {
+    pub fn body_owned_by(self, id: LocalDefId) -> BodyId {
         self.maybe_body_owned_by(id).unwrap_or_else(|| {
+            let hir_id = self.local_def_id_to_hir_id(id);
             span_bug!(
-                self.span(id),
+                self.span(hir_id),
                 "body_owned_by: {} has no associated body",
-                self.node_to_string(id)
+                self.node_to_string(hir_id)
             );
         })
     }
@@ -670,7 +671,7 @@ impl<'hir> Map<'hir> {
     /// Whether the expression pointed at by `hir_id` belongs to a `const` evaluation context.
     /// Used exclusively for diagnostics, to avoid suggestion function calls.
     pub fn is_inside_const_context(self, hir_id: HirId) -> bool {
-        self.body_const_context(self.local_def_id(self.enclosing_body_owner(hir_id))).is_some()
+        self.body_const_context(self.enclosing_body_owner(hir_id)).is_some()
     }
 
     /// Retrieves the `HirId` for `id`'s enclosing method, unless there's a

compiler/rustc_middle/src/hir/mod.rs

@@ -157,8 +157,9 @@ pub fn provide(providers: &mut Providers) {
     };
     providers.fn_arg_names = |tcx, id| {
         let hir = tcx.hir();
-        let hir_id = hir.local_def_id_to_hir_id(id.expect_local());
-        if let Some(body_id) = hir.maybe_body_owned_by(hir_id) {
+        let def_id = id.expect_local();
+        let hir_id = hir.local_def_id_to_hir_id(def_id);
+        if let Some(body_id) = hir.maybe_body_owned_by(def_id) {
             tcx.arena.alloc_from_iter(hir.body_param_names(body_id))
         } else if let Node::TraitItem(&TraitItem {
             kind: TraitItemKind::Fn(_, TraitFn::Required(idents)),

compiler/rustc_mir_build/src/check_unsafety.rs

@@ -626,7 +626,7 @@ pub fn check_unsafety<'tcx>(tcx: TyCtxt<'tcx>, def: ty::WithOptConstParam<LocalD
     if tcx.is_closure(def.did.to_def_id()) {
         let hir = tcx.hir();
         let owner = hir.enclosing_body_owner(hir.local_def_id_to_hir_id(def.did));
-        tcx.ensure().thir_check_unsafety(hir.local_def_id(owner));
+        tcx.ensure().thir_check_unsafety(owner);
         return;
     }
 

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

@@ -21,7 +21,7 @@ pub(crate) fn thir_body<'tcx>(
     owner_def: ty::WithOptConstParam<LocalDefId>,
 ) -> Result<(&'tcx Steal<Thir<'tcx>>, ExprId), ErrorGuaranteed> {
     let hir = tcx.hir();
-    let body = hir.body(hir.body_owned_by(hir.local_def_id_to_hir_id(owner_def.did)));
+    let body = hir.body(hir.body_owned_by(owner_def.did));
     let mut cx = Cx::new(tcx, owner_def);
     if let Some(reported) = cx.typeck_results.tainted_by_errors {
         return Err(reported);

compiler/rustc_mir_build/src/thir/pattern/check_match.rs

@@ -26,7 +26,7 @@ use rustc_span::{BytePos, Span};
 pub(crate) fn check_match(tcx: TyCtxt<'_>, def_id: DefId) {
     let body_id = match def_id.as_local() {
         None => return,
-        Some(id) => tcx.hir().body_owned_by(tcx.hir().local_def_id_to_hir_id(id)),
+        Some(def_id) => tcx.hir().body_owned_by(def_id),
     };
 
     let pattern_arena = TypedArena::default();

compiler/rustc_mir_transform/src/check_unsafety.rs

@@ -464,15 +464,15 @@ fn check_unused_unsafe(
     def_id: LocalDefId,
     used_unsafe_blocks: &FxHashMap<HirId, UsedUnsafeBlockData>,
 ) -> Vec<(HirId, UnusedUnsafe)> {
-    let hir_id = tcx.hir().local_def_id_to_hir_id(def_id);
-    let body_id = tcx.hir().maybe_body_owned_by(hir_id);
+    let body_id = tcx.hir().maybe_body_owned_by(def_id);
 
     let Some(body_id) = body_id else {
         debug!("check_unused_unsafe({:?}) - no body found", def_id);
         return vec![];
     };
-    let body = tcx.hir().body(body_id);
 
+    let body = tcx.hir().body(body_id);
+    let hir_id = tcx.hir().local_def_id_to_hir_id(def_id);
     let context = match tcx.hir().fn_sig_by_hir_id(hir_id) {
         Some(sig) if sig.header.unsafety == hir::Unsafety::Unsafe => Context::UnsafeFn(hir_id),
         _ => Context::Safe,

compiler/rustc_passes/src/upvars.rs

@@ -15,8 +15,8 @@ pub fn provide(providers: &mut Providers) {
             return None;
         }
 
-        let hir_id = tcx.hir().local_def_id_to_hir_id(def_id.expect_local());
-        let body = tcx.hir().body(tcx.hir().maybe_body_owned_by(hir_id)?);
+        let local_def_id = def_id.expect_local();
+        let body = tcx.hir().body(tcx.hir().maybe_body_owned_by(local_def_id)?);
 
         let mut local_collector = LocalCollector::default();
         local_collector.visit_body(body);

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

@@ -1790,8 +1790,7 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
 
         let generator_body = generator_did
             .as_local()
-            .map(|def_id| hir.local_def_id_to_hir_id(def_id))
-            .and_then(|hir_id| hir.maybe_body_owned_by(hir_id))
+            .and_then(|def_id| hir.maybe_body_owned_by(def_id))
             .map(|body_id| hir.body(body_id));
         let is_async = match generator_did.as_local() {
             Some(_) => generator_body
@@ -2759,7 +2758,9 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
         let body_hir_id = obligation.cause.body_id;
         let item_id = self.tcx.hir().get_parent_node(body_hir_id);
 
-        if let Some(body_id) = self.tcx.hir().maybe_body_owned_by(item_id) {
+        if let Some(body_id) =
+            self.tcx.hir().maybe_body_owned_by(self.tcx.hir().local_def_id(item_id))
+        {
             let body = self.tcx.hir().body(body_id);
             if let Some(hir::GeneratorKind::Async(_)) = body.generator_kind {
                 let future_trait = self.tcx.require_lang_item(LangItem::Future, None);

compiler/rustc_ty_utils/src/ty.rs

@@ -207,9 +207,14 @@ fn param_env(tcx: TyCtxt<'_>, def_id: DefId) -> ty::ParamEnv<'_> {
         constness,
     );
 
-    let body_id = hir_id.map_or(hir::CRATE_HIR_ID, |id| {
-        tcx.hir().maybe_body_owned_by(id).map_or(id, |body| body.hir_id)
-    });
+    let body_id =
+        local_did.and_then(|id| tcx.hir().maybe_body_owned_by(id).map(|body| body.hir_id));
+    let body_id = match body_id {
+        Some(id) => id,
+        None if hir_id.is_some() => hir_id.unwrap(),
+        _ => hir::CRATE_HIR_ID,
+    };
+
     let cause = traits::ObligationCause::misc(tcx.def_span(def_id), body_id);
     traits::normalize_param_env_or_error(tcx, unnormalized_env, cause)
 }

compiler/rustc_typeck/src/check/expr.rs

@@ -766,7 +766,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
                 // If this didn't hold, we would not have to report an error in
                 // the first place.
-                assert_ne!(hir::HirId::make_owner(encl_item_id), encl_body_owner_id);
+                assert_ne!(encl_item_id, encl_body_owner_id);
 
                 let encl_body_id = self.tcx.hir().body_owned_by(encl_body_owner_id);
                 let encl_body = self.tcx.hir().body(encl_body_id);

compiler/rustc_typeck/src/check/fn_ctxt/checks.rs

@@ -58,7 +58,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         debug!("FnCtxt::check_asm: {} deferred checks", deferred_asm_checks.len());
         for (asm, hir_id) in deferred_asm_checks.drain(..) {
             let enclosing_id = self.tcx.hir().enclosing_body_owner(hir_id);
-            InlineAsmCtxt::new_in_fn(self).check_asm(asm, enclosing_id);
+            InlineAsmCtxt::new_in_fn(self)
+                .check_asm(asm, self.tcx.hir().local_def_id_to_hir_id(enclosing_id));
         }
     }
 

compiler/rustc_typeck/src/check/inherited.rs

@@ -107,8 +107,7 @@ impl<'tcx> InheritedBuilder<'tcx> {
 impl<'a, 'tcx> Inherited<'a, 'tcx> {
     fn new(infcx: InferCtxt<'a, 'tcx>, def_id: LocalDefId) -> Self {
         let tcx = infcx.tcx;
-        let item_id = tcx.hir().local_def_id_to_hir_id(def_id);
-        let body_id = tcx.hir().maybe_body_owned_by(item_id);
+        let body_id = tcx.hir().maybe_body_owned_by(def_id);
         let typeck_results =
             infcx.in_progress_typeck_results.expect("building `FnCtxt` without typeck results");
 

compiler/rustc_typeck/src/check/region.rs

@@ -814,8 +814,7 @@ pub fn region_scope_tree(tcx: TyCtxt<'_>, def_id: DefId) -> &ScopeTree {
         return tcx.region_scope_tree(typeck_root_def_id);
     }
 
-    let id = tcx.hir().local_def_id_to_hir_id(def_id.expect_local());
-    let scope_tree = if let Some(body_id) = tcx.hir().maybe_body_owned_by(id) {
+    let scope_tree = if let Some(body_id) = tcx.hir().maybe_body_owned_by(def_id.expect_local()) {
         let mut visitor = RegionResolutionVisitor {
             tcx,
             scope_tree: ScopeTree::default(),

compiler/rustc_typeck/src/collect/type_of.rs

@@ -100,7 +100,7 @@ pub(super) fn opt_const_param_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<
                 ExprKind::MethodCall(segment, ..) | ExprKind::Path(QPath::TypeRelative(_, segment)),
             ..
         }) => {
-            let body_owner = tcx.hir().local_def_id(tcx.hir().enclosing_body_owner(hir_id));
+            let body_owner = tcx.hir().enclosing_body_owner(hir_id);
             let tables = tcx.typeck(body_owner);
             // This may fail in case the method/path does not actually exist.
             // As there is no relevant param for `def_id`, we simply return
@@ -134,7 +134,7 @@ pub(super) fn opt_const_param_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<
                         | ExprKind::Struct(&QPath::Resolved(_, path), ..),
                     ..
                 }) => {
-                    let body_owner = tcx.hir().local_def_id(tcx.hir().enclosing_body_owner(hir_id));
+                    let body_owner = tcx.hir().enclosing_body_owner(hir_id);
                     let _tables = tcx.typeck(body_owner);
                     &*path
                 }

src/librustdoc/clean/utils.rs

@@ -236,8 +236,7 @@ pub(crate) fn print_const(cx: &DocContext<'_>, n: ty::Const<'_>) -> String {
     match n.kind() {
         ty::ConstKind::Unevaluated(ty::Unevaluated { def, substs: _, promoted }) => {
             let mut s = if let Some(def) = def.as_local() {
-                let hir_id = cx.tcx.hir().local_def_id_to_hir_id(def.did);
-                print_const_expr(cx.tcx, cx.tcx.hir().body_owned_by(hir_id))
+                print_const_expr(cx.tcx, cx.tcx.hir().body_owned_by(def.did))
             } else {
                 inline::print_inlined_const(cx.tcx, def.did)
             };

src/librustdoc/core.rs

@@ -313,7 +313,7 @@ pub(crate) fn create_config(
                 }
 
                 let hir = tcx.hir();
-                let body = hir.body(hir.body_owned_by(hir.local_def_id_to_hir_id(def_id)));
+                let body = hir.body(hir.body_owned_by(def_id));
                 debug!("visiting body for {:?}", def_id);
                 EmitIgnoredResolutionErrors::new(tcx).visit_body(body);
                 (rustc_interface::DEFAULT_QUERY_PROVIDERS.typeck)(tcx, def_id)

src/librustdoc/scrape_examples.rs

@@ -143,8 +143,7 @@ where
         // then we need to exit before calling typeck (which will panic). See
         // test/run-make/rustdoc-scrape-examples-invalid-expr for an example.
         let hir = tcx.hir();
-        let owner = hir.local_def_id_to_hir_id(ex.hir_id.owner);
-        if hir.maybe_body_owned_by(owner).is_none() {
+        if hir.maybe_body_owned_by(ex.hir_id.owner).is_none() {
             return;
         }
 

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

@@ -12,7 +12,8 @@ pub fn check<'tcx>(cx: &LateContext<'tcx>, expr: &hir::Expr<'_>, count_recv: &hi
     if_chain! {
         if is_trait_method(cx, count_recv, sym::Iterator);
         let closure = expr_or_init(cx, map_arg);
-        if let Some(body_id) = cx.tcx.hir().maybe_body_owned_by(closure.hir_id);
+        if let Some(def_id) = cx.tcx.hir().opt_local_def_id(closure.hir_id);
+        if let Some(body_id) = cx.tcx.hir().maybe_body_owned_by(def_id);
         let closure_body = cx.tcx.hir().body(body_id);
         if !cx.typeck_results().expr_ty(&closure_body.value).is_unit();
         then {

src/tools/clippy/clippy_lints/src/utils/author.rs

@@ -138,7 +138,7 @@ impl<'tcx> LateLintPass<'tcx> for Author {
 
 fn check_item(cx: &LateContext<'_>, hir_id: HirId) {
     let hir = cx.tcx.hir();
-    if let Some(body_id) = hir.maybe_body_owned_by(hir_id) {
+    if let Some(body_id) = hir.maybe_body_owned_by(hir_id.expect_owner()) {
         check_node(cx, hir_id, |v| {
             v.expr(&v.bind("expr", &hir.body(body_id).value));
         });

src/tools/clippy/clippy_utils/src/lib.rs

@@ -1353,7 +1353,7 @@ pub fn is_integer_const(cx: &LateContext<'_>, e: &Expr<'_>, value: u128) -> bool
     if is_integer_literal(e, value) {
         return true;
     }
-    let enclosing_body = cx.tcx.hir().local_def_id(cx.tcx.hir().enclosing_body_owner(e.hir_id));
+    let enclosing_body = cx.tcx.hir().enclosing_body_owner(e.hir_id);
     if let Some((Constant::Int(v), _)) = constant(cx, cx.tcx.typeck(enclosing_body), e) {
         return value == v;
     }