1 files changed, 80 insertions, 0 deletions
diff --git a/gcc/rust/hir/tree/rust-hir-visibility.h b/gcc/rust/hir/tree/rust-hir-visibility.h
new file mode 100644
index 0000000..a750d88
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+++ b/gcc/rust/hir/tree/rust-hir-visibility.h
@@ -0,0 +1,80 @@
+// Copyright (C) 2020-2024 Free Software Foundation, Inc.
+
+// This file is part of GCC.
+
+// GCC is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 3, or (at your option) any later
+// version.
+
+// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with GCC; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef RUST_HIR_VISIBILITY_H
+#define RUST_HIR_VISIBILITY_H
+
+#include "rust-hir-simple-path.h"
+
+namespace Rust {
+namespace HIR {
+// Visibility of an item
+struct Visibility
+{
+public:
+  enum VisType
+  {
+    PRIVATE,
+    PUBLIC,
+    RESTRICTED,
+    ERROR,
+  };
+
+private:
+  VisType vis_type;
+  HIR::SimplePath path;
+  location_t locus;
+
+  // should this store location info?
+
+public:
+  Visibility (VisType vis_type,
+	      HIR::SimplePath path = HIR::SimplePath::create_empty (),
+	      location_t locus = UNDEF_LOCATION)
+    : vis_type (vis_type), path (std::move (path)), locus (locus)
+  {}
+
+  // Returns whether visibility is in an error state.
+  bool is_error () const { return vis_type == ERROR; }
+
+  // Does the current visibility refer to a simple `pub <item>` entirely public
+  bool is_public () const { return vis_type == PUBLIC; }
+
+  // Is the current visibility public restricted to a certain path
+  bool is_restricted () const { return vis_type == RESTRICTED; }
+
+  // Creates an error visibility.
+  static Visibility create_error ()
+  {
+    return Visibility (ERROR, HIR::SimplePath::create_empty ());
+  }
+
+  VisType get_vis_type () const { return vis_type; }
+
+  const HIR::SimplePath &get_path () const
+  {
+    rust_assert (!is_error ());
+    return path;
+  }
+
+  std::string as_string () const;
+};
+} // namespace HIR
+} // namespace Rust
+
+#endif