Add missing header files.

git-svn-id: https://svn.r-project.org/R/trunk@89102 00db46b3-68df-0310-9c12-caf00c1e9a41

Author: luke

src/include/R_ext/Callbacks.h

@@ -0,0 +1,34 @@
+/*
+ *  R : A Computer Language for Statistical Data Analysis
+ *  Copyright (C) 2001-2025 The R Core Team.
+ *
+ *  This header file is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 2.1 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This file is part of R. R is distributed under the terms of the
+ *  GNU General Public License, either Version 2, June 1991 or Version 3,
+ *  June 2007. See doc/COPYRIGHTS for details of the copyright status of R.
+ *
+ *  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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, a copy is available at
+ *  https://www.R-project.org/Licenses/
+ */
+
+/* 
+   Not part of the API, subject to change at any time.
+*/
+
+#ifndef R_FAKE_CALLBACKS_H
+#define R_FAKE_CALLBACKS_H
+
+// new code should include R_ext/ObjectTable.h directly
+#include <R_ext/ObjectTable.h>
+
+#endif /* R_FAKE_CALLBACKS_H */

src/include/R_ext/ObjectTable.h

@@ -0,0 +1,83 @@
+/*
+ *  R : A Computer Language for Statistical Data Analysis
+ *  Copyright (C) 2001-2025 The R Core Team.
+ *
+ *  This header file is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 2.1 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This file is part of R. R is distributed under the terms of the
+ *  GNU General Public License, either Version 2, June 1991 or Version 3,
+ *  June 2007. See doc/COPYRIGHTS for details of the copyright status of R.
+ *
+ *  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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, a copy is available at
+ *  https://www.R-project.org/Licenses/
+ */
+
+/* 
+   Not part of the API, subject to change at any time.
+*/
+
+#ifndef R_OBJECTTABLE_H
+#define R_OBJECTTABLE_H
+
+#include <Rinternals.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+  The following definitions are for callbacks to R functions and
+  methods related to user-level tables.  This was implemented in a
+  separate package formerly available from Omegahat and these
+  declarations allow the package to interface to the internal R code.
+  
+  See https://developer.r-project.org/RObjectTables.pdf.
+*/
+
+typedef struct  _R_ObjectTable R_ObjectTable;
+
+/* Do we actually need the exists() since it is never called but R
+   uses get to see if the symbol is bound to anything? */
+typedef Rboolean (*Rdb_exists)(const char * const name, Rboolean *canCache, R_ObjectTable *);
+typedef SEXP     (*Rdb_get)(const char * const name, Rboolean *canCache, R_ObjectTable *);
+typedef int      (*Rdb_remove)(const char * const name, R_ObjectTable *);
+typedef SEXP     (*Rdb_assign)(const char * const name, SEXP value, R_ObjectTable *);
+typedef SEXP     (*Rdb_objects)(R_ObjectTable *);
+typedef Rboolean (*Rdb_canCache)(const char * const name, R_ObjectTable *);
+
+typedef void     (*Rdb_onDetach)(R_ObjectTable *);
+typedef void     (*Rdb_onAttach)(R_ObjectTable *);
+
+struct  _R_ObjectTable{
+  int       type;
+  char    **cachedNames;
+  Rboolean  active;
+
+  Rdb_exists   exists;
+  Rdb_get      get;
+  Rdb_remove   remove;
+  Rdb_assign   assign;
+  Rdb_objects  objects;
+  Rdb_canCache canCache;
+
+  Rdb_onDetach onDetach;
+  Rdb_onAttach onAttach;
+  
+  void     *privateData;
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* R_OBJECTTABLE_H */