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+/*
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __FN_MULTI_FUNCTION_CONTEXT_HH__
+#define __FN_MULTI_FUNCTION_CONTEXT_HH__
+
+/** \file
+ * \ingroup fn
+ *
+ * An #MFContext is passed along with every call to a multi-function. Right now it does nothing,
+ * but it can be used for the following purposes:
+ * - Pass debug information up and down the function call stack.
+ * - Pass reusable memory buffers to sub-functions to increase performance.
+ * - Pass cached data to called functions.
+ */
+
+#include "BLI_utildefines.h"
+
+namespace blender {
+namespace fn {
+
+class MFContextBuilder {
+};
+
+class MFContext {
+ public:
+  MFContext(MFContextBuilder &UNUSED(builder))
+  {
+  }
+};
+
+}  // namespace fn
+}  // namespace blender
+
+#endif /* __FN_MULTI_FUNCTION_CONTEXT_HH__ */