Don't show foreign types as an allowed target if the feature is not enabled

JonathanBrouwer · JonathanBrouwer · commit e8f90b12fcb5 · 2025-08-16T09:44:39.000+02:00
diff --git a/compiler/rustc_attr_parsing/src/context.rs b/compiler/rustc_attr_parsing/src/context.rs
@@ -1060,6 +1060,9 @@ pub(crate) fn allowed_targets_applied(
         if !features.stmt_expr_attributes() {
             allowed_targets.retain(|t| !matches!(t, Target::Expression | Target::Statement));
         }
+        if !features.extern_types() {
+            allowed_targets.retain(|t| !matches!(t, Target::ForeignTy));
+        }
     }
 
     // We define groups of "similar" targets.

Original file line number	Diff line number	Diff line change
`@@ -1060,6 +1060,9 @@ pub(crate) fn allowed_targets_applied(`
`1060`	`1060`	`if !features.stmt_expr_attributes() {`
`1061`	`1061`	`allowed_targets.retain(\|t\| !matches!(t, Target::Expression \| Target::Statement));`
`1062`	`1062`	`}`
	`1063`	`+ if !features.extern_types() {`
	`1064`	`+ allowed_targets.retain(\|t\| !matches!(t, Target::ForeignTy));`
	`1065`	`+ }`
`1063`	`1066`	`}`
`1064`	`1067`
`1065`	`1068`	`// We define groups of "similar" targets.`