Merge pull request #4774 from rust-lang/rustup-2025-12-18

Automatic Rustup

Author: RalfJung

crates/base-db/src/lib.rs

@@ -64,6 +64,28 @@ macro_rules! impl_intern_key {
     };
 }
 
+/// # SAFETY
+///
+/// `old_pointer` must be valid for unique writes
+pub unsafe fn unsafe_update_eq<T>(old_pointer: *mut T, new_value: T) -> bool
+where
+    T: PartialEq,
+{
+    // SAFETY: Caller obligation
+    let old_ref: &mut T = unsafe { &mut *old_pointer };
+
+    if *old_ref != new_value {
+        *old_ref = new_value;
+        true
+    } else {
+        // Subtle but important: Eq impls can be buggy or define equality
+        // in surprising ways. If it says that the value has not changed,
+        // we do not modify the existing value, and thus do not have to
+        // update the revision, as downstream code will not see the new value.
+        false
+    }
+}
+
 pub const DEFAULT_FILE_TEXT_LRU_CAP: u16 = 16;
 pub const DEFAULT_PARSE_LRU_CAP: u16 = 128;
 pub const DEFAULT_BORROWCK_LRU_CAP: u16 = 2024;

crates/hir-def/src/attrs.rs

@@ -155,6 +155,9 @@ fn match_attr_flags(attr_flags: &mut AttrFlags, attr: Meta) -> ControlFlow<Infal
                 "rustc_skip_during_method_dispatch" => {
                     extract_rustc_skip_during_method_dispatch(attr_flags, tt)
                 }
+                "rustc_deprecated_safe_2024" => {
+                    attr_flags.insert(AttrFlags::RUSTC_DEPRECATED_SAFE_2024)
+                }
                 _ => {}
             },
             2 => match path.segments[0].text() {

crates/hir-def/src/db.rs

@@ -8,12 +8,12 @@ use la_arena::ArenaMap;
 use triomphe::Arc;
 
 use crate::{
-    AssocItemId, AttrDefId, ConstId, ConstLoc, DefWithBodyId, EnumId, EnumLoc, EnumVariantId,
-    EnumVariantLoc, ExternBlockId, ExternBlockLoc, ExternCrateId, ExternCrateLoc, FunctionId,
-    FunctionLoc, GenericDefId, ImplId, ImplLoc, LocalFieldId, Macro2Id, Macro2Loc, MacroExpander,
-    MacroId, MacroRulesId, MacroRulesLoc, MacroRulesLocFlags, ProcMacroId, ProcMacroLoc, StaticId,
-    StaticLoc, StructId, StructLoc, TraitId, TraitLoc, TypeAliasId, TypeAliasLoc, UnionId,
-    UnionLoc, UseId, UseLoc, VariantId,
+    AssocItemId, AttrDefId, BlockId, BlockLoc, ConstId, ConstLoc, DefWithBodyId, EnumId, EnumLoc,
+    EnumVariantId, EnumVariantLoc, ExternBlockId, ExternBlockLoc, ExternCrateId, ExternCrateLoc,
+    FunctionId, FunctionLoc, GenericDefId, ImplId, ImplLoc, LocalFieldId, Macro2Id, Macro2Loc,
+    MacroExpander, MacroId, MacroRulesId, MacroRulesLoc, MacroRulesLocFlags, ProcMacroId,
+    ProcMacroLoc, StaticId, StaticLoc, StructId, StructLoc, TraitId, TraitLoc, TypeAliasId,
+    TypeAliasLoc, UnionId, UnionLoc, UseId, UseLoc, VariantId,
     attrs::AttrFlags,
     expr_store::{
         Body, BodySourceMap, ExpressionStore, ExpressionStoreSourceMap, scope::ExprScopes,
@@ -82,6 +82,9 @@ pub trait InternDatabase: RootQueryDb {
     #[salsa::interned]
     fn intern_macro_rules(&self, loc: MacroRulesLoc) -> MacroRulesId;
     // endregion: items
+
+    #[salsa::interned]
+    fn intern_block(&self, loc: BlockLoc) -> BlockId;
 }
 
 #[query_group::query_group]