Specify the list of allowed targets per attribute

1 files changed, 18 insertions, 2 deletions

diff --git a/compiler/rustc_attr_parsing/src/attributes/inline.rs b/compiler/rustc_attr_parsing/src/attributes/inline.rs
index e9a45f20bff..6a659a95b85 100644
--- a/compiler/rustc_attr_parsing/src/attributes/inline.rs
+++ b/compiler/rustc_attr_parsing/src/attributes/inline.rs
@@ -5,19 +5,34 @@
 use rustc_feature::{AttributeTemplate, template};
 use rustc_hir::attrs::{AttributeKind, InlineAttr};
 use rustc_hir::lints::AttributeLintKind;
+use rustc_hir::{MethodKind, Target};
 use rustc_span::{Symbol, sym};
 
 use super::{AcceptContext, AttributeOrder, OnDuplicate};
 use crate::attributes::SingleAttributeParser;
-use crate::context::Stage;
+use crate::context::MaybeWarn::{Allow, Warn};
+use crate::context::{AllowedTargets, Stage};
 use crate::parser::ArgParser;
-
 pub(crate) struct InlineParser;
 
 impl<S: Stage> SingleAttributeParser<S> for InlineParser {
     const PATH: &'static [Symbol] = &[sym::inline];
     const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost;
     const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError;
+    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[
+        Allow(Target::Fn),
+        Allow(Target::Method(MethodKind::Inherent)),
+        Allow(Target::Method(MethodKind::Trait { body: true })),
+        Allow(Target::Method(MethodKind::TraitImpl)),
+        Allow(Target::Closure),
+        Allow(Target::Delegation { mac: false }),
+        Warn(Target::Method(MethodKind::Trait { body: false })),
+        Warn(Target::ForeignFn),
+        Warn(Target::Field),
+        Warn(Target::MacroDef),
+        Warn(Target::Arm),
+        Warn(Target::AssocConst),
+    ]);
     const TEMPLATE: AttributeTemplate = template!(
         Word,
         List: &["always", "never"],
@@ -63,6 +78,7 @@ impl<S: Stage> SingleAttributeParser<S> for RustcForceInlineParser {
     const PATH: &'static [Symbol] = &[sym::rustc_force_inline];
     const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost;
     const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError;
+    const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[Allow(Target::Fn)]);
     const TEMPLATE: AttributeTemplate = template!(Word, List: &["reason"], NameValueStr: "reason");
 
     fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {