Merging upstream version 1.73.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 71 insertions, 46 deletions

diff --git a/compiler/rustc_middle/src/hir/map/mod.rs b/compiler/rustc_middle/src/hir/map/mod.rs
index 5f2eb890c..467962b39 100644
--- a/compiler/rustc_middle/src/hir/map/mod.rs
+++ b/compiler/rustc_middle/src/hir/map/mod.rs
@@ -8,7 +8,7 @@ use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_data_structures::svh::Svh;
 use rustc_data_structures::sync::{par_for_each_in, DynSend, DynSync};
 use rustc_hir::def::{DefKind, Res};
-use rustc_hir::def_id::{DefId, LocalDefId, CRATE_DEF_ID, LOCAL_CRATE};
+use rustc_hir::def_id::{DefId, LocalDefId, LocalModDefId, LOCAL_CRATE};
 use rustc_hir::definitions::{DefKey, DefPath, DefPathData, DefPathHash};
 use rustc_hir::intravisit::{self, Visitor};
 use rustc_hir::*;
@@ -24,7 +24,7 @@ pub fn associated_body(node: Node<'_>) -> Option<(LocalDefId, BodyId)> {
     match node {
         Node::Item(Item {
             owner_id,
-            kind: ItemKind::Const(_, body) | ItemKind::Static(.., body) | ItemKind::Fn(.., body),
+            kind: ItemKind::Const(_, _, body) | ItemKind::Static(.., body) | ItemKind::Fn(.., body),
             ..
         })
         | Node::TraitItem(TraitItem {
@@ -148,7 +148,7 @@ impl<'hir> Map<'hir> {
     }
 
     #[inline]
-    pub fn module_items(self, module: LocalDefId) -> impl Iterator<Item = ItemId> + 'hir {
+    pub fn module_items(self, module: LocalModDefId) -> impl Iterator<Item = ItemId> + 'hir {
         self.tcx.hir_module_items(module).items()
     }
 
@@ -169,8 +169,8 @@ impl<'hir> Map<'hir> {
     }
 
     #[inline]
-    pub fn local_def_id_to_hir_id(self, def_id: LocalDefId) -> HirId {
-        self.tcx.local_def_id_to_hir_id(def_id)
+    pub fn local_def_id_to_hir_id(self, def_id: impl Into<LocalDefId>) -> HirId {
+        self.tcx.local_def_id_to_hir_id(def_id.into())
     }
 
     /// Do not call this function directly. The query should be called.
@@ -195,14 +195,10 @@ impl<'hir> Map<'hir> {
                 ItemKind::Fn(..) => DefKind::Fn,
                 ItemKind::Macro(_, macro_kind) => DefKind::Macro(macro_kind),
                 ItemKind::Mod(..) => DefKind::Mod,
-                ItemKind::OpaqueTy(ref opaque) => {
-                    if opaque.in_trait && !self.tcx.lower_impl_trait_in_trait_to_assoc_ty() {
-                        DefKind::ImplTraitPlaceholder
-                    } else {
-                        DefKind::OpaqueTy
-                    }
+                ItemKind::OpaqueTy(..) => DefKind::OpaqueTy,
+                ItemKind::TyAlias(..) => {
+                    DefKind::TyAlias { lazy: self.tcx.features().lazy_type_alias }
                 }
-                ItemKind::TyAlias(..) => DefKind::TyAlias,
                 ItemKind::Enum(..) => DefKind::Enum,
                 ItemKind::Struct(..) => DefKind::Struct,
                 ItemKind::Union(..) => DefKind::Union,
@@ -533,20 +529,20 @@ impl<'hir> Map<'hir> {
         self.krate_attrs().iter().any(|attr| attr.has_name(sym::rustc_coherence_is_core))
     }
 
-    pub fn get_module(self, module: LocalDefId) -> (&'hir Mod<'hir>, Span, HirId) {
-        let hir_id = HirId::make_owner(module);
+    pub fn get_module(self, module: LocalModDefId) -> (&'hir Mod<'hir>, Span, HirId) {
+        let hir_id = HirId::make_owner(module.to_local_def_id());
         match self.tcx.hir_owner(hir_id.owner).map(|o| o.node) {
             Some(OwnerNode::Item(&Item { span, kind: ItemKind::Mod(ref m), .. })) => {
                 (m, span, hir_id)
             }
             Some(OwnerNode::Crate(item)) => (item, item.spans.inner_span, hir_id),
-            node => panic!("not a module: {:?}", node),
+            node => panic!("not a module: {node:?}"),
         }
     }
 
     /// Walks the contents of the local crate. See also `visit_all_item_likes_in_crate`.
     pub fn walk_toplevel_module(self, visitor: &mut impl Visitor<'hir>) {
-        let (top_mod, span, hir_id) = self.get_module(CRATE_DEF_ID);
+        let (top_mod, span, hir_id) = self.get_module(LocalModDefId::CRATE_DEF_ID);
         visitor.visit_mod(top_mod, span, hir_id);
     }
 
@@ -599,7 +595,7 @@ impl<'hir> Map<'hir> {
 
     /// This method is the equivalent of `visit_all_item_likes_in_crate` but restricted to
     /// item-likes in a single module.
-    pub fn visit_item_likes_in_module<V>(self, module: LocalDefId, visitor: &mut V)
+    pub fn visit_item_likes_in_module<V>(self, module: LocalModDefId, visitor: &mut V)
     where
         V: Visitor<'hir>,
     {
@@ -622,17 +618,19 @@ impl<'hir> Map<'hir> {
         }
     }
 
-    pub fn for_each_module(self, mut f: impl FnMut(LocalDefId)) {
+    pub fn for_each_module(self, mut f: impl FnMut(LocalModDefId)) {
         let crate_items = self.tcx.hir_crate_items(());
         for module in crate_items.submodules.iter() {
-            f(module.def_id)
+            f(LocalModDefId::new_unchecked(module.def_id))
         }
     }
 
     #[inline]
-    pub fn par_for_each_module(self, f: impl Fn(LocalDefId) + DynSend + DynSync) {
+    pub fn par_for_each_module(self, f: impl Fn(LocalModDefId) + DynSend + DynSync) {
         let crate_items = self.tcx.hir_crate_items(());
-        par_for_each_in(&crate_items.submodules[..], |module| f(module.def_id))
+        par_for_each_in(&crate_items.submodules[..], |module| {
+            f(LocalModDefId::new_unchecked(module.def_id))
+        })
     }
 
     /// Returns an iterator for the nodes in the ancestor tree of the `current_id`
@@ -741,17 +739,6 @@ impl<'hir> Map<'hir> {
         }
     }
 
-    /// Returns the `OwnerId` of `id`'s nearest module parent, or `id` itself if no
-    /// module parent is in this map.
-    pub(super) fn get_module_parent_node(self, hir_id: HirId) -> OwnerId {
-        for (def_id, node) in self.parent_owner_iter(hir_id) {
-            if let OwnerNode::Item(&Item { kind: ItemKind::Mod(_), .. }) = node {
-                return def_id;
-            }
-        }
-        CRATE_OWNER_ID
-    }
-
     /// When on an if expression, a match arm tail expression or a match arm, give back
     /// the enclosing `if` or `match` expression.
     ///
@@ -1109,6 +1096,33 @@ impl<'hir> Map<'hir> {
             _ => None,
         }
     }
+
+    pub fn maybe_get_struct_pattern_shorthand_field(&self, expr: &Expr<'_>) -> Option<Symbol> {
+        let local = match expr {
+            Expr {
+                kind:
+                    ExprKind::Path(QPath::Resolved(
+                        None,
+                        Path {
+                            res: def::Res::Local(_), segments: [PathSegment { ident, .. }], ..
+                        },
+                    )),
+                ..
+            } => Some(ident),
+            _ => None,
+        }?;
+
+        match self.find_parent(expr.hir_id)? {
+            Node::ExprField(field) => {
+                if field.ident.name == local.name && field.is_shorthand {
+                    return Some(local.name);
+                }
+            }
+            _ => {}
+        }
+
+        None
+    }
 }
 
 impl<'hir> intravisit::Map<'hir> for Map<'hir> {
@@ -1198,7 +1212,7 @@ pub(super) fn crate_hash(tcx: TyCtxt<'_>, _: LocalCrate) -> Svh {
             owner_spans.hash_stable(&mut hcx, &mut stable_hasher);
         }
         tcx.sess.opts.dep_tracking_hash(true).hash_stable(&mut hcx, &mut stable_hasher);
-        tcx.sess.local_stable_crate_id().hash_stable(&mut hcx, &mut stable_hasher);
+        tcx.stable_crate_id(LOCAL_CRATE).hash_stable(&mut hcx, &mut stable_hasher);
         // Hash visibility information since it does not appear in HIR.
         resolutions.visibilities.hash_stable(&mut hcx, &mut stable_hasher);
         resolutions.has_pub_restricted.hash_stable(&mut hcx, &mut stable_hasher);
@@ -1312,7 +1326,7 @@ fn hir_id_to_string(map: Map<'_>, id: HirId) -> String {
     }
 }
 
-pub(super) fn hir_module_items(tcx: TyCtxt<'_>, module_id: LocalDefId) -> ModuleItems {
+pub(super) fn hir_module_items(tcx: TyCtxt<'_>, module_id: LocalModDefId) -> ModuleItems {
     let mut collector = ItemCollector::new(tcx, false);
 
     let (hir_mod, span, hir_id) = tcx.hir().get_module(module_id);
diff --git a/compiler/rustc_middle/src/hir/mod.rs b/compiler/rustc_middle/src/hir/mod.rs
index 45a07fdd2..0da8fe9cc 100644
--- a/compiler/rustc_middle/src/hir/mod.rs
+++ b/compiler/rustc_middle/src/hir/mod.rs
@@ -11,7 +11,7 @@ use crate::ty::{EarlyBinder, ImplSubject, TyCtxt};
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_data_structures::sync::{par_for_each_in, DynSend, DynSync};
 use rustc_hir::def::DefKind;
-use rustc_hir::def_id::{DefId, LocalDefId};
+use rustc_hir::def_id::{DefId, LocalDefId, LocalModDefId};
 use rustc_hir::*;
 use rustc_query_system::ich::StableHashingContext;
 use rustc_span::{ExpnId, DUMMY_SP};
@@ -101,8 +101,22 @@ impl<'tcx> TyCtxt<'tcx> {
         map::Map { tcx: self }
     }
 
-    pub fn parent_module(self, id: HirId) -> LocalDefId {
-        self.parent_module_from_def_id(id.owner.def_id)
+    pub fn parent_module(self, id: HirId) -> LocalModDefId {
+        if !id.is_owner() && self.def_kind(id.owner) == DefKind::Mod {
+            LocalModDefId::new_unchecked(id.owner.def_id)
+        } else {
+            self.parent_module_from_def_id(id.owner.def_id)
+        }
+    }
+
+    pub fn parent_module_from_def_id(self, mut id: LocalDefId) -> LocalModDefId {
+        while let Some(parent) = self.opt_local_parent(id) {
+            id = parent;
+            if self.def_kind(id) == DefKind::Mod {
+                break;
+            }
+        }
+        LocalModDefId::new_unchecked(id)
     }
 
     pub fn impl_subject(self, def_id: DefId) -> EarlyBinder<ImplSubject<'tcx>> {
@@ -120,10 +134,6 @@ impl<'tcx> TyCtxt<'tcx> {
 }
 
 pub fn provide(providers: &mut Providers) {
-    providers.parent_module_from_def_id = |tcx, id| {
-        let hir = tcx.hir();
-        hir.get_module_parent_node(hir.local_def_id_to_hir_id(id)).def_id
-    };
     providers.hir_crate_items = map::hir_crate_items;
     providers.crate_hash = map::crate_hash;
     providers.hir_module_items = map::hir_module_items;
@@ -154,18 +164,15 @@ pub fn provide(providers: &mut Providers) {
         tcx.hir_crate(()).owners[id.def_id].as_owner().map_or(AttributeMap::EMPTY, |o| &o.attrs)
     };
     providers.def_span = |tcx, def_id| {
-        let def_id = def_id;
         let hir_id = tcx.hir().local_def_id_to_hir_id(def_id);
         tcx.hir().opt_span(hir_id).unwrap_or(DUMMY_SP)
     };
     providers.def_ident_span = |tcx, def_id| {
-        let def_id = def_id;
         let hir_id = tcx.hir().local_def_id_to_hir_id(def_id);
         tcx.hir().opt_ident_span(hir_id)
     };
-    providers.fn_arg_names = |tcx, id| {
+    providers.fn_arg_names = |tcx, def_id| {
         let hir = tcx.hir();
-        let def_id = id;
         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))
@@ -180,7 +187,7 @@ pub fn provide(providers: &mut Providers) {
         {
             idents
         } else {
-            span_bug!(hir.span(hir_id), "fn_arg_names: unexpected item {:?}", id);
+            span_bug!(hir.span(hir_id), "fn_arg_names: unexpected item {:?}", def_id);
         }
     };
     providers.opt_def_kind = |tcx, def_id| tcx.hir().opt_def_kind(def_id);
diff --git a/compiler/rustc_middle/src/hir/place.rs b/compiler/rustc_middle/src/hir/place.rs
index 8a22de931..32f3a1775 100644
--- a/compiler/rustc_middle/src/hir/place.rs
+++ b/compiler/rustc_middle/src/hir/place.rs
@@ -36,6 +36,10 @@ pub enum ProjectionKind {
 
     /// A subslice covering a range of values like `B[x..y]`.
     Subslice,
+
+    /// A conversion from an opaque type to its hidden type so we can
+    /// do further projections on it.
+    OpaqueCast,
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable)]