1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/diagnostic-diagram.h b/gcc/diagnostic-diagram.h
new file mode 100644
index 0000000..fc923c5
--- /dev/null
+++ b/gcc/diagnostic-diagram.h
@@ -0,0 +1,51 @@
+/* Support for diagrams within diagnostics.
+   Copyright (C) 2023 Free Software Foundation, Inc.
+   Contributed by David Malcolm <dmalcolm@redhat.com>
+
+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 GCC_DIAGNOSTIC_DIAGRAM_H
+#define GCC_DIAGNOSTIC_DIAGRAM_H
+
+namespace text_art
+{
+  class canvas;
+} // namespace text_art
+
+/* A text art diagram, along with an "alternative text" string
+   describing it.  */
+
+class diagnostic_diagram
+{
+ public:
+  diagnostic_diagram (const text_art::canvas &canvas,
+		      const char *alt_text)
+  : m_canvas (canvas),
+    m_alt_text (alt_text)
+  {
+    gcc_assert (alt_text);
+  }
+
+  const text_art::canvas &get_canvas () const { return m_canvas; }
+  const char *get_alt_text () const { return m_alt_text; }
+
+ private:
+  const text_art::canvas &m_canvas;
+  const char *const m_alt_text;
+};
+
+#endif /* ! GCC_DIAGNOSTIC_DIAGRAM_H */