Specify the list of allowed targets per attribute

1 files changed, 5 insertions, 2 deletions

diff --git a/compiler/rustc_attr_parsing/src/attributes/confusables.rs b/compiler/rustc_attr_parsing/src/attributes/confusables.rs
index edd22172ca2..00f949c82c5 100644
--- a/compiler/rustc_attr_parsing/src/attributes/confusables.rs
+++ b/compiler/rustc_attr_parsing/src/attributes/confusables.rs
@@ -1,12 +1,13 @@
 use rustc_feature::template;
 use rustc_hir::attrs::AttributeKind;
+use rustc_hir::{MethodKind, Target};
 use rustc_span::{Span, Symbol, sym};
 use thin_vec::ThinVec;
 
 use super::{AcceptMapping, AttributeParser};
-use crate::context::{FinalizeContext, Stage};
+use crate::context::MaybeWarn::Allow;
+use crate::context::{AllowedTargets, FinalizeContext, Stage};
 use crate::session_diagnostics;
-
 #[derive(Default)]
 pub(crate) struct ConfusablesParser {
     confusables: ThinVec<Symbol>,
@@ -41,6 +42,8 @@ impl<S: Stage> AttributeParser<S> for ConfusablesParser {
             this.first_span.get_or_insert(cx.attr_span);
         },
     )];
+    const ALLOWED_TARGETS: AllowedTargets =
+        AllowedTargets::AllowList(&[Allow(Target::Method(MethodKind::Inherent))]);
 
     fn finalize(self, _cx: &FinalizeContext<'_, '_, S>) -> Option<AttributeKind> {
         if self.confusables.is_empty() {