[gcc/devel/rust/master] hir: Add ExternalItem::ExternKind enumeration

[gcc/devel/rust/master] hir: Add ExternalItem::ExternKind enumeration

[Thomas Schwinge]

https://gcc.gnu.org/g:e7b6a9ee16ae495a858a694d53b8c74548f5bbdd

commit e7b6a9ee16ae495a858a694d53b8c74548f5bbdd
Author: Arthur Cohen <arthur.cohen@embecosm.com>
Date:   Tue Jul 26 10:48:31 2022 +0200

    hir: Add ExternalItem::ExternKind enumeration

Diff:
---
 gcc/rust/hir/tree/rust-hir-item.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/gcc/rust/hir/tree/rust-hir-item.h b/gcc/rust/hir/tree/rust-hir-item.h
index 6156b2dacb3..394b04f6c7f 100644
--- a/gcc/rust/hir/tree/rust-hir-item.h
+++ b/gcc/rust/hir/tree/rust-hir-item.h
@@ -2834,10 +2834,18 @@ class ExternalItem : public Node
   Location locus;
 
 public:
+  enum class ExternKind
+  {
+    Static,
+    Function,
+  };
+
   virtual ~ExternalItem () {}
 
   BaseKind get_hir_kind () override final { return EXTERNAL; }
 
+  virtual ExternKind get_extern_kind () = 0;
+
   // Returns whether item has outer attributes.
   bool has_outer_attrs () const { return !outer_attrs.empty (); }
 
@@ -2944,6 +2952,8 @@ public:
 
   std::unique_ptr<Type> &get_item_type () { return item_type; }
 
+  ExternKind get_extern_kind () override { return ExternKind::Static; }
+
 protected:
   /* Use covariance to implement clone function as returning this object
    * rather than base */
@@ -3095,6 +3105,8 @@ public:
 
   bool is_variadic () const { return has_variadics; }
 
+  ExternKind get_extern_kind () override { return ExternKind::Function; }
+
 protected:
   /* Use covariance to implement clone function as returning this object
    * rather than base */