Add forward type declaration representation

boot/semantic.cc

@@ -0,0 +1,73 @@
+/* Name analysis.
+   Copyright (C) 2025 Free Software Foundation, Inc.
+
+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/>.  */
+
+#include "elna/boot/semantic.h"
+
+namespace elna
+{
+namespace boot
+{
+    alias_type *type::is_alias()
+    {
+        return nullptr;
+    }
+
+    primitive_type *type::is_primitive()
+    {
+        return nullptr;
+    }
+
+    record_type *type::is_record()
+    {
+        return nullptr;
+    }
+
+    union_type *type::is_union()
+    {
+        return nullptr;
+    }
+
+    type::~type()
+    {
+    }
+
+    alias_type *alias_type::is_alias()
+    {
+        return this;
+    }
+
+    primitive_type::primitive_type(const std::string& identifier)
+        : identifier(identifier)
+    {
+    }
+
+    primitive_type *primitive_type::is_primitive()
+    {
+        return this;
+    }
+
+    record_type *record_type::is_record()
+    {
+        return this;
+    }
+
+    union_type *union_type::is_union()
+    {
+        return this;
+    }
+}
+}