* generic/tclResult.c (TclMergeReturnOptions): Make sure any -code

        values get pulled out of the dictionary, even if they are integer
        valued.

        * generic/tclCompCmds.c (TclCompileReturnCmd):  Added code to
        more optimally compile [return -level 0 $x] to "push $x". [RFE 1794073]

1 files changed, 8 insertions, 2 deletions

diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c
index 5c5831b..99cb133 100644
--- a/generic/tclCompCmds.c
+++ b/generic/tclCompCmds.c
@@ -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: tclCompCmds.c,v 1.120 2007/09/25 20:27:17 dkf Exp $
+ * RCS: @(#) $Id: tclCompCmds.c,v 1.121 2007/10/18 21:16:18 dgp Exp $
  */
 
 #include "tclInt.h"
@@ -3088,7 +3088,7 @@ TclCompileReturnCmd(
      * General syntax: [return ?-option value ...? ?result?]
      * An even number of words means an explicit result argument is present.
      */
-    int level, code, objc, status = TCL_OK;
+    int level, code, objc, size, status = TCL_OK;
     int numWords = parsePtr->numWords;
     int explicitResult = (0 == (numWords % 2));
     int numOptionWords = numWords - 1 - explicitResult;
@@ -3208,6 +3208,12 @@ TclCompileReturnCmd(
 	}
     }
 
+    /* Optimize [return -level 0 $x]. */
+    Tcl_DictObjSize(NULL, returnOpts, &size);
+    if (size == 0 && level == 0 && code == TCL_OK) {
+	return TCL_OK;
+    }
+
     /*
      * Could not use the optimization, so we push the return options dict, and
      * emit the INST_RETURN_IMM instruction with code and level as operands.