Add field to CallFrame for holding object call frame data.

3 files changed, 18 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index f1b1dfa..bb8cfe3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2006-10-27  Donal K. Fellows  <dkf@users.sf.net>
 
+	* generic/tclInt.h (CallFrame): Add a field for handling context data
+	for extensions (like object systems) that should be tied to a call
+	frame (and not a command or interpreter).
+
 	* generic/tclBasic.c (TclRenameCommand): Change to take CONST args;
 	they were only ever used in a constant way anyway, so this appears to
 	be a spot that was missed during TIP#27 work.
diff --git a/generic/tcl.h b/generic/tcl.h
index 8e309a2..c67cad7 100644
--- a/generic/tcl.h
+++ b/generic/tcl.h
@@ -13,7 +13,7 @@
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tcl.h,v 1.224 2006/10/23 22:49:24 msofer Exp $
+ * RCS: @(#) $Id: tcl.h,v 1.225 2006/10/27 12:44:08 dkf Exp $
  */
 
 #ifndef _TCL
@@ -952,7 +952,8 @@ typedef struct Tcl_CallFrame {
     char *dummy7;
     char *dummy8;
     int dummy9;
-    char* dummy10;
+    char *dummy10;
+    char *dummy11;
 } Tcl_CallFrame;
 
 /*
diff --git a/generic/tclInt.h b/generic/tclInt.h
index 6a06fb0..93a9514 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -12,7 +12,7 @@
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclInt.h,v 1.283 2006/10/23 22:49:25 msofer Exp $
+ * RCS: @(#) $Id: tclInt.h,v 1.284 2006/10/27 12:44:08 dkf Exp $
  */
 
 #ifndef _TCLINT
@@ -886,10 +886,19 @@ typedef struct CallFrame {
 				 * Initially NULL and created if needed. */
     int numCompiledLocals;	/* Count of local variables recognized by the
 				 * compiler including arguments. */
-    Var* compiledLocals;	/* Points to the array of local variables
+    Var *compiledLocals;	/* Points to the array of local variables
 				 * recognized by the compiler. The compiler
 				 * emits code that refers to these variables
 				 * using an index into this array. */
+    ClientData clientData;	/* Pointer to some context that is used by
+				 * object systems. The meaning of the contents
+				 * of this field is defined by the code that
+				 * sets it, and it should only ever be set by
+				 * the code that is pushing the frame. In that
+				 * case, the code that sets it should also
+				 * have some means of discovering what the
+				 * meaning of the value is, which we do not
+				 * specify. */
 } CallFrame;
 
 #define FRAME_IS_PROC 0x1