Auto merge of #151743 - JonathanBrouwer:rollup-lEYzf1h, r=JonathanBrouwer

Rollup of 4 pull requests

Successful merges:

 - #150491 (resolve: Mark items under exported ambiguous imports as exported)
 - #151161 (std: move time implementations to `sys`)
 - #151694 (more `proc_macro` bridge cleanups)
 - #151711 (stdarch subtree update)

Author: bors

compiler/rustc_expand/src/proc_macro_server.rs

@@ -458,13 +458,11 @@ impl<'a, 'b> Rustc<'a, 'b> {
     }
 }
 
-impl server::Types for Rustc<'_, '_> {
+impl server::Server for Rustc<'_, '_> {
     type TokenStream = TokenStream;
     type Span = Span;
     type Symbol = Symbol;
-}
 
-impl server::Server for Rustc<'_, '_> {
     fn globals(&mut self) -> ExpnGlobals<Self::Span> {
         ExpnGlobals {
             def_site: self.def_site,

compiler/rustc_resolve/src/effective_visibilities.rs

@@ -96,13 +96,10 @@ impl<'a, 'ra, 'tcx> EffectiveVisibilitiesVisitor<'a, 'ra, 'tcx> {
         // is the maximum value among visibilities of declarations corresponding to that def id.
         for (decl, eff_vis) in visitor.import_effective_visibilities.iter() {
             let DeclKind::Import { import, .. } = decl.kind else { unreachable!() };
-            if !decl.is_ambiguity_recursive() {
-                if let Some(node_id) = import.id() {
-                    r.effective_visibilities.update_eff_vis(r.local_def_id(node_id), eff_vis, r.tcx)
-                }
-            } else if decl.ambiguity.get().is_some()
-                && eff_vis.is_public_at_level(Level::Reexported)
-            {
+            if let Some(node_id) = import.id() {
+                r.effective_visibilities.update_eff_vis(r.local_def_id(node_id), eff_vis, r.tcx)
+            }
+            if decl.ambiguity.get().is_some() && eff_vis.is_public_at_level(Level::Reexported) {
                 exported_ambiguities.insert(*decl);
             }
         }
@@ -123,31 +120,13 @@ impl<'a, 'ra, 'tcx> EffectiveVisibilitiesVisitor<'a, 'ra, 'tcx> {
             // Set the given effective visibility level to `Level::Direct` and
             // sets the rest of the `use` chain to `Level::Reexported` until
             // we hit the actual exported item.
-            //
-            // If the binding is ambiguous, put the root ambiguity binding and all reexports
-            // leading to it into the table. They are used by the `ambiguous_glob_reexports`
-            // lint. For all bindings added to the table this way `is_ambiguity` returns true.
-            let is_ambiguity =
-                |decl: Decl<'ra>, warn: bool| decl.ambiguity.get().is_some() && !warn;
             let mut parent_id = ParentId::Def(module_id);
-            let mut warn_ambiguity = decl.warn_ambiguity.get();
             while let DeclKind::Import { source_decl, .. } = decl.kind {
                 self.update_import(decl, parent_id);
-
-                if is_ambiguity(decl, warn_ambiguity) {
-                    // Stop at the root ambiguity, further bindings in the chain should not
-                    // be reexported because the root ambiguity blocks any access to them.
-                    // (Those further bindings are most likely not ambiguities themselves.)
-                    break;
-                }
-
                 parent_id = ParentId::Import(decl);
                 decl = source_decl;
-                warn_ambiguity |= source_decl.warn_ambiguity.get();
             }
-            if !is_ambiguity(decl, warn_ambiguity)
-                && let Some(def_id) = decl.res().opt_def_id().and_then(|id| id.as_local())
-            {
+            if let Some(def_id) = decl.res().opt_def_id().and_then(|id| id.as_local()) {
                 self.update_def(def_id, decl.vis().expect_local(), parent_id);
             }
         }

library/core/src/lib.rs

@@ -182,6 +182,7 @@
 #![feature(staged_api)]
 #![feature(stmt_expr_attributes)]
 #![feature(strict_provenance_lints)]
+#![feature(target_feature_inline_always)]
 #![feature(trait_alias)]
 #![feature(transparent_unions)]
 #![feature(try_blocks)]

library/proc_macro/src/bridge/client.rs

@@ -30,19 +30,19 @@ impl Drop for TokenStream {
 }
 
 impl<S> Encode<S> for TokenStream {
-    fn encode(self, w: &mut Writer, s: &mut S) {
+    fn encode(self, w: &mut Buffer, s: &mut S) {
         mem::ManuallyDrop::new(self).handle.encode(w, s);
     }
 }
 
 impl<S> Encode<S> for &TokenStream {
-    fn encode(self, w: &mut Writer, s: &mut S) {
+    fn encode(self, w: &mut Buffer, s: &mut S) {
         self.handle.encode(w, s);
     }
 }
 
 impl<S> Decode<'_, '_, S> for TokenStream {
-    fn decode(r: &mut Reader<'_>, s: &mut S) -> Self {
+    fn decode(r: &mut &[u8], s: &mut S) -> Self {
         TokenStream { handle: handle::Handle::decode(r, s) }
     }
 }
@@ -56,23 +56,17 @@ impl !Send for Span {}
 impl !Sync for Span {}
 
 impl<S> Encode<S> for Span {
-    fn encode(self, w: &mut Writer, s: &mut S) {
+    fn encode(self, w: &mut Buffer, s: &mut S) {
         self.handle.encode(w, s);
     }
 }
 
 impl<S> Decode<'_, '_, S> for Span {
-    fn decode(r: &mut Reader<'_>, s: &mut S) -> Self {
+    fn decode(r: &mut &[u8], s: &mut S) -> Self {
         Span { handle: handle::Handle::decode(r, s) }
     }
 }
 
-// FIXME(eddyb) generate these impls by pattern-matching on the
-// names of methods - also could use the presence of `fn drop`
-// to distinguish between 'owned and 'interned, above.
-// Alternatively, special "modes" could be listed of types in with_api
-// instead of pattern matching on methods, here and in server decl.
-
 impl Clone for TokenStream {
     fn clone(&self) -> Self {
         Methods::ts_clone(self)
@@ -104,18 +98,15 @@ pub(crate) use super::symbol::Symbol;
 
 macro_rules! define_client_side {
     (
-        Methods {
-            $(fn $method:ident($($arg:ident: $arg_ty:ty),* $(,)?) $(-> $ret_ty:ty)*;)*
-        },
-        $($name:ident),* $(,)?
+        $(fn $method:ident($($arg:ident: $arg_ty:ty),* $(,)?) $(-> $ret_ty:ty)*;)*
     ) => {
         impl Methods {
             $(pub(crate) fn $method($($arg: $arg_ty),*) $(-> $ret_ty)? {
                 Bridge::with(|bridge| {
                     let mut buf = bridge.cached_buffer.take();
 
                     buf.clear();
-                    api_tags::Method::$method.encode(&mut buf, &mut ());
+                    ApiTags::$method.encode(&mut buf, &mut ());
                     $($arg.encode(&mut buf, &mut ());)*
 
                     buf = bridge.dispatch.call(buf);
@@ -130,7 +121,7 @@ macro_rules! define_client_side {
         }
     }
 }
-with_api!(self, self, define_client_side);
+with_api!(self, define_client_side);
 
 struct Bridge<'a> {
     /// Reusable buffer (only `clear`-ed, never shrunk), primarily