Rollup merge of #99888 - nnethercote:streamline-visitors, r=cjgillot

[rust.git] / compiler / rustc_resolve / src / macros.rs

diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs
index 4210560f5312b189e70b28b3c3d71cc1b4802950..070fb9c721b401b1287fde73e37972e04e38ea97 100644 (file)
--- a/compiler/rustc_resolve/src/macros.rs
+++ b/compiler/rustc_resolve/src/macros.rs
@@ -325,7 +325,7 @@ fn check_unused_macros(&mut self) {
                 UNUSED_MACROS,
                 node_id,
                 ident.span,
-                &format!("unused macro definition: `{}`", ident.as_str()),
+                &format!("unused macro definition: `{}`", ident.name),
             );
         }
         for (&(def_id, arm_i), &(ident, rule_span)) in self.unused_macro_rules.iter() {
@@ -341,7 +341,7 @@ fn check_unused_macros(&mut self) {
                 &format!(
                     "{} rule of macro `{}` is never used",
                     crate::diagnostics::ordinalize(arm_i + 1),
-                    ident.as_str()
+                    ident.name
                 ),
             );
         }
@@ -796,16 +796,23 @@ fn check_stability_and_deprecation(
     ) {
         let span = path.span;
         if let Some(stability) = &ext.stability {
-            if let StabilityLevel::Unstable { reason, issue, is_soft } = stability.level {
+            if let StabilityLevel::Unstable { reason, issue, is_soft, implied_by } = stability.level
+            {
                 let feature = stability.feature;
-                if !self.active_features.contains(&feature) && !span.allows_unstable(feature) {
+
+                let is_allowed = |feature| {
+                    self.active_features.contains(&feature) || span.allows_unstable(feature)
+                };
+                let allowed_by_implication =
+                    implied_by.map(|feature| is_allowed(feature)).unwrap_or(false);
+                if !is_allowed(feature) && !allowed_by_implication {
                     let lint_buffer = &mut self.lint_buffer;
                     let soft_handler =
                         |lint, span, msg: &_| lint_buffer.buffer_lint(lint, node_id, span, msg);
                     stability::report_unstable(
                         self.session,
                         feature,
-                        reason,
+                        reason.to_opt_reason(),
                         issue,
                         None,
                         is_soft,