1 files changed, 105 insertions, 0 deletions
diff --git a/gcc/rust/rust-location.h b/gcc/rust/rust-location.h
new file mode 100644
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--- /dev/null
+++ b/gcc/rust/rust-location.h
@@ -0,0 +1,105 @@
+// Copyright (C) 2020-2022 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/>.
+
+// rust-location.h -- GCC specific Location declaration.   -*- C++ -*-
+
+#ifndef RUST_LOCATION_H
+#define RUST_LOCATION_H
+
+#include "rust-system.h"
+
+// A location in an input source file.
+
+class Location
+{
+public:
+  Location () : gcc_loc_ (UNKNOWN_LOCATION) {}
+
+  explicit Location (location_t loc) : gcc_loc_ (loc) {}
+
+  location_t gcc_location () const { return gcc_loc_; }
+
+  Location operator+= (location_t rhs)
+  {
+    gcc_loc_ += rhs;
+    return *this;
+  }
+
+  Location operator-= (location_t rhs)
+  {
+    gcc_loc_ -= rhs;
+    return *this;
+  }
+
+  bool operator== (location_t rhs) { return rhs == gcc_loc_; }
+
+private:
+  location_t gcc_loc_;
+};
+
+// The Rust frontend requires the ability to compare Locations.
+
+inline bool
+operator< (Location loca, Location locb)
+{
+  return loca.gcc_location () < locb.gcc_location ();
+}
+
+inline bool
+operator== (Location loca, Location locb)
+{
+  return loca.gcc_location () == locb.gcc_location ();
+}
+
+inline Location
+operator+ (Location lhs, location_t rhs)
+{
+  lhs += rhs;
+  return lhs;
+}
+
+inline Location
+operator- (Location lhs, location_t rhs)
+{
+  lhs -= rhs;
+  return lhs;
+}
+
+class RichLocation
+{
+public:
+  RichLocation (Location root);
+  ~RichLocation ();
+
+  void add_range (Location loc);
+
+  void add_fixit_insert_before (const std::string &new_parent);
+
+  void add_fixit_insert_before (Location where, const std::string &new_parent);
+
+  void add_fixit_insert_after (const std::string &new_parent);
+
+  void add_fixit_insert_after (Location where, const std::string &new_parent);
+
+  const rich_location &get () const { return gcc_rich_loc; }
+
+private:
+  rich_location gcc_rich_loc;
+};
+
+#endif // !defined(RUST_LOCATION_H)