internal: Switch to Rust 1.86.0

Cargo.toml

@@ -4,7 +4,7 @@ exclude = ["crates/proc-macro-srv/proc-macro-test/imp"]
 resolver = "2"
 
 [workspace.package]
-rust-version = "1.85"
+rust-version = "1.86"
 edition = "2024"
 license = "MIT OR Apache-2.0"
 authors = ["rust-analyzer team"]

crates/base-db/src/lib.rs

@@ -43,10 +43,6 @@ macro_rules! impl_intern_key {
     };
 }
 
-pub trait Upcast<T: ?Sized> {
-    fn upcast(&self) -> &T;
-}
-
 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/attr.rs

@@ -46,7 +46,7 @@ impl Attrs {
     }
 
     pub(crate) fn filter(db: &dyn DefDatabase, krate: Crate, raw_attrs: RawAttrs) -> Attrs {
-        Attrs(raw_attrs.filter(db.upcast(), krate))
+        Attrs(raw_attrs.filter(db, krate))
     }
 }
 
@@ -507,7 +507,7 @@ impl AttrsWithOwner {
                     // FIXME: We should be never getting `None` here.
                     match src.value.get(it.local_id()) {
                         Some(val) => RawAttrs::from_attrs_owner(
-                            db.upcast(),
+                            db,
                             src.with_value(val),
                             db.span_map(src.file_id).as_ref(),
                         ),
@@ -519,7 +519,7 @@ impl AttrsWithOwner {
                     // FIXME: We should be never getting `None` here.
                     match src.value.get(it.local_id()) {
                         Some(val) => RawAttrs::from_attrs_owner(
-                            db.upcast(),
+                            db,
                             src.with_value(val),
                             db.span_map(src.file_id).as_ref(),
                         ),
@@ -531,7 +531,7 @@ impl AttrsWithOwner {
                     // FIXME: We should be never getting `None` here.
                     match src.value.get(it.local_id) {
                         Some(val) => RawAttrs::from_attrs_owner(
-                            db.upcast(),
+                            db,
                             src.with_value(val),
                             db.span_map(src.file_id).as_ref(),
                         ),
@@ -544,7 +544,7 @@ impl AttrsWithOwner {
             AttrDefId::UseId(it) => attrs_from_item_tree_loc(db, it),
         };
 
-        let attrs = raw_attrs.filter(db.upcast(), def.krate(db));
+        let attrs = raw_attrs.filter(db, def.krate(db));
         Attrs(attrs)
     }
 

crates/hir-def/src/db.rs

@@ -1,5 +1,5 @@
 //! Defines database & queries for name resolution.
-use base_db::{Crate, RootQueryDb, SourceDatabase, Upcast};
+use base_db::{Crate, RootQueryDb, SourceDatabase};
 use either::Either;
 use hir_expand::{HirFileId, MacroDefId, db::ExpandDatabase};
 use intern::sym;
@@ -100,13 +100,7 @@ pub trait InternDatabase: RootQueryDb {
 }
 
 #[query_group::query_group]
-pub trait DefDatabase:
-    InternDatabase
-    + ExpandDatabase
-    + SourceDatabase
-    + Upcast<dyn ExpandDatabase>
-    + Upcast<dyn RootQueryDb>
-{
+pub trait DefDatabase: InternDatabase + ExpandDatabase + SourceDatabase {
     /// Whether to expand procedural macros during name resolution.
     #[salsa::input]
     fn expand_proc_attr_macros(&self) -> bool;
@@ -381,7 +375,7 @@ fn include_macro_invoc(
         .flat_map(|m| m.scope.iter_macro_invoc())
         .filter_map(|invoc| {
             db.lookup_intern_macro_call(*invoc.1)
-                .include_file_id(db.upcast(), *invoc.1)
+                .include_file_id(db, *invoc.1)
                 .map(|x| (*invoc.1, x))
         })
         .collect()

crates/hir-def/src/expr_store/expander.rs

@@ -72,7 +72,7 @@ impl Expander {
         krate: Crate,
         has_attrs: &dyn HasAttrs,
     ) -> Attrs {
-        Attrs::filter(db, krate, RawAttrs::new(db.upcast(), has_attrs, self.span_map.as_ref()))
+        Attrs::filter(db, krate, RawAttrs::new(db, has_attrs, self.span_map.as_ref()))
     }
 
     pub(super) fn is_cfg_enabled(
@@ -103,7 +103,7 @@ impl Expander {
         let result = self.within_limit(db, |this| {
             let macro_call = this.in_file(&macro_call);
             match macro_call.as_call_id_with_errors(
-                db.upcast(),
+                db,
                 krate,
                 |path| resolver(path).map(|it| db.macro_def(it)),
                 eager_callback,
@@ -178,7 +178,7 @@ impl Expander {
             self.recursion_depth = u32::MAX;
             cov_mark::hit!(your_stack_belongs_to_me);
             return ExpandResult::only_err(ExpandError::new(
-                db.macro_arg_considering_derives(call_id, &call_id.lookup(db.upcast()).kind).2,
+                db.macro_arg_considering_derives(call_id, &call_id.lookup(db).kind).2,
                 ExpandErrorKind::RecursionOverflow,
             ));
         }

crates/hir-def/src/expr_store/lower/path.rs

@@ -78,7 +78,7 @@ pub(super) fn lower_path(
                         return None;
                     }
                     break kind = resolve_crate_root(
-                        collector.db.upcast(),
+                        collector.db,
                         collector.expander.ctx_for_range(name_ref.syntax().text_range()),
                     )
                     .map(PathKind::DollarCrate)
@@ -216,7 +216,7 @@ pub(super) fn lower_path(
             let syn_ctxt = collector.expander.ctx_for_range(path.segment()?.syntax().text_range());
             if let Some(macro_call_id) = syn_ctxt.outer_expn(collector.db) {
                 if collector.db.lookup_intern_macro_call(macro_call_id).def.local_inner {
-                    kind = match resolve_crate_root(collector.db.upcast(), syn_ctxt) {
+                    kind = match resolve_crate_root(collector.db, syn_ctxt) {
                         Some(crate_root) => PathKind::DollarCrate(crate_root),
                         None => PathKind::Crate,
                     }