Rewind from a refactoring that veered into the weeds.bug_3293874

28 files changed, 1644 insertions, 324 deletions

diff --git a/ChangeLog b/ChangeLog
index 47b9a2d..5c4c72a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,49 @@
+2011-05-25  Don Porter  <dgp@users.sourceforge.net>
+
+	* library/msgcat/msgcat.tcl:	Bump to msgcat 1.4.4.
+	* library/msgcat/pkgIndex.tcl:
+	* unix/Makefile.in
+	* win/Makefile.in
+
+2011-05-25  Donal K. Fellows  <dkf@users.sf.net>
+
+	* generic/tclOO.h (TCLOO_VERSION): Bump version.
+
+	IMPLEMENTATION OF TIP#381.
+
+	* doc/next.n, doc/ooInfo.n, doc/self.n, generic/tclOO.c,
+	* generic/tclOOBasic.c, generic/tclOOCall.c, generic/tclOOInfo.c,
+	* generic/tclOOInt.h, tests/oo.test, tests/ooNext2.test: Added
+	introspection of call chains ([self call], [info object call], [info
+	class call]) and ability to skip ahead in chain ([nextto]).
+
+2011-05-24  Venkat Iyer <venkat@comit.com>
+
+	* library/tzdata/Africa/Cairo: Update to Olson tzdata2011g
+
+2011-05-24  Donal K. Fellows  <dkf@users.sf.net>
+
+	* library/msgcat/msgcat.tcl (msgcat::mcset, msgcat::mcmset): Remove
+	some useless code; [dict set] builds dictionary levels for us.
+
+2011-05-17  Andreas Kupries  <andreask@activestate.com>
+
+	* generic/tclCompile.c (TclFixupForwardJump): Tracked down and fixed
+	* generic/tclBasic.c (TclArgumentBCEnter): the cause of a violation
+	of my assertion that 'ePtr->nline == objc' in TclArgumentBCEnter.
+	When a bytecode was grown during jump fixup the pc -> command line
+	mapping was not updated. When things aligned just wrong the mapping
+	would direct command A to the data for command B, with a different
+	number of arguments.
+
+2011-05-11  Reinhard Max  <max@suse.de>
+
+	* unix/tclUnixSock.c (TcpWatchProc): No need to check for server
+	sockets here, as the generic server code already takes care of
+	that.
+	* tests/socket.test (accept): Add tests to make sure that this
+	remains so.
+
 2011-05-10  Don Porter  <dgp@users.sourceforge.net>
 
 	* generic/tclInt.h:     New internal routines TclScanElement() and
diff --git a/doc/info.n b/doc/info.n
index 2126b21..cb5c6e6 100644
--- a/doc/info.n
+++ b/doc/info.n
@@ -399,6 +399,29 @@ been set (e.g. a variable declared but not set by \fBvariable\fR).
 The following \fIsubcommand\fR values are supported by \fBinfo class\fR:
 .VE 8.6
 .TP
+\fBinfo class call\fI class method\fR
+.VS
+Returns a description of the method implementations that are used to provide a
+stereotypical instance of \fIclass\fR's implementation of \fImethod\fR
+(stereotypical instances being objects instantiated by a class without having
+any object-specific definitions added). This consists of a list of lists of
+four elements, where each sublist consists of a word that describes the
+general type of method implementation (being one of \fBmethod\fR for an
+ordinary method, \fBfilter\fR for an applied filter, and \fBunknown\fR for a
+method that is invoked as part of unknown method handling), a word giving the
+name of the particular method invoked (which is always the same as
+\fImethod\fR for the \fBmethod\fR type, and
+.QW \fBunknown\fR
+for the \fBunknown\fR type), a word giving the fully qualified name of the
+class that defined the method, and a word describing the type of method
+implementation (see \fBinfo class methodtype\fR).
+.RS
+.PP
+Note that there is no inspection of whether the method implementations
+actually use \fBnext\fR to transfer control along the call chain.
+.RE
+.VE 8.6
+.TP
 \fBinfo class constructor\fI class\fR
 .VS 8.6
 This subcommand returns a description of the definition of the constructor of
@@ -504,6 +527,28 @@ class's methods, constructor and destructor).
 The following \fIsubcommand\fR values are supported by \fBinfo object\fR:
 .VE 8.6
 .TP
+\fBinfo object call\fI object method\fR
+.VS 8.6
+Returns a description of the method implementations that are used to provide
+\fIobject\fR's implementation of \fImethod\fR.  This consists of a list of
+lists of four elements, where each sublist consists of a word that describes
+the general type of method implementation (being one of \fBmethod\fR for an
+ordinary method, \fBfilter\fR for an applied filter, and \fBunknown\fR for a
+method that is invoked as part of unknown method handling), a word giving the
+name of the particular method invoked (which is always the same as
+\fImethod\fR for the \fBmethod\fR type, and
+.QW \fBunknown\fR
+for the \fBunknown\fR type), a word giving what defined the method (the fully
+qualified name of the class, or the literal string \fBobject\fR if the method
+implementation is on an instance), and a word describing the type of method
+implementation (see \fBinfo object methodtype\fR).
+.RS
+.PP
+Note that there is no inspection of whether the method implementations
+actually use \fBnext\fR to transfer control along the call chain.
+.RE
+.VE 8.6
+.TP
 \fBinfo object class\fI object\fR ?\fIclassName\fR?
 .VS 8.6
 If \fIclassName\fR is unspecified, this subcommand returns class of the
@@ -672,6 +717,27 @@ method and get how it is defined. This procedure illustrates how:
 .PP
 .CS
 proc getDef {obj method} {
+    foreach inf [\fBinfo object call\fR $obj $method] {
+        lassign $inf calltype name locus methodtype
+        # Assume no forwards or filters, and hence no $calltype
+        # or $methodtype checks...
+        if {$locus eq "object"} {
+            return [\fBinfo object definition\fR $obj $name]
+        } else {
+            return [\fBinfo class definition\fR $locus $name]
+        }
+    }
+    error "no definition for $method"
+}
+.CE
+.PP
+This is an alternate way of implementing the definition lookup is by manually
+scanning the list of methods up the inheritance tree. This code assumes that
+only single inheritance is in use, and that there is no complex use of
+mixed-in classes:
+.PP
+.CS
+proc getDef {obj method} {
     if {$method in [\fBinfo object methods\fR $obj]} {
         # Assume no forwards
         return [\fBinfo object definition\fR $obj $method]
diff --git a/doc/next.n b/doc/next.n
index c8b098e..222d8b3 100644
--- a/doc/next.n
+++ b/doc/next.n
@@ -15,6 +15,7 @@ next \- invoke superclass method implementations
 package require TclOO
 
 \fBnext\fR ?\fIarg ...\fR?
+\fBnextto\fI class\fR ?\fIarg ...\fR?
 .fi
 .BE
 
@@ -30,6 +31,13 @@ of the next method in the method chain; if there are no further methods in the
 method chain, the result of \fBnext\fR will be an error. The arguments,
 \fIarg\fR, to \fBnext\fR are the arguments to pass to the next method in the
 chain.
+.PP
+The \fBnextto\fR command is the same as the \fBnext\fR command, except that it
+takes an additional \fIclass\fR argument that identifies a class whose
+implementation of the current method chain (see \fBinfo object call\fR) should
+be used; the method implementation selected will be the one provided by the
+given class, and it must refer to an existing non-filter invocation that lies
+further along the chain than the current implementation.
 .SH "THE METHOD CHAIN"
 .PP
 When a method of an object is invoked, things happen in several stages:
diff --git a/doc/self.n b/doc/self.n
index f01a607..11779ff 100644
--- a/doc/self.n
+++ b/doc/self.n
@@ -25,6 +25,17 @@ takes an argument, \fIsubcommand\fR, that tells it what sort of information is
 actually desired; if omitted the result will be the same as if \fBself
 object\fR was invoked. The supported subcommands are:
 .TP
+\fBself call\fR
+.
+This returns a two-element list describing the method implementations used to
+implement the current call chain. The first element is the same as would be
+reported by \fBinfo object call\fR for the current method (except that this
+also reports useful values from within constructors and destructors, whose
+names are reported as \fB<constructor>\fR and \fB<destructor>\fR
+respectively), and the second element is an index into the first element's
+list that indicates which actual implementation is currently executing (the
+first implementation to execute is always at index 0).
+.TP
 \fBself caller\fR
 .
 When the method was invoked from inside another object method, this subcommand
@@ -109,6 +120,28 @@ c create b
 a foo                \fI\(-> prints "this is the ::a object"\fR
 b foo                \fI\(-> prints "this is the ::b object"\fR
 .CE
+.PP
+This demonstrates what a method call chain looks like, and how traversing
+along it changes the index into it:
+.PP
+.CS
+oo::class create c {
+    method x {} {
+        puts "Cls: [\fBself call\fR]"
+    }
+}
+c create a
+oo::objdefine a {
+    method x {} {
+        puts "Obj: [\fBself call\fR]"
+        next
+        puts "Obj: [\fBself call\fR]"
+    }
+}
+a x     \fI\(-> Obj: {{method x object method} {method x ::c method}} 0\fR
+        \fI\(-> Cls: {{method x object method} {method x ::c method}} 1\fR
+        \fI\(-> Obj: {{method x object method} {method x ::c method}} 0\fR
+.CE
 .SH "SEE ALSO"
 info(n), next(n)
 .SH KEYWORDS
diff --git a/generic/tclBasic.c b/generic/tclBasic.c
index 2da455b..d80731e 100644
--- a/generic/tclBasic.c
+++ b/generic/tclBasic.c
@@ -5590,6 +5590,10 @@ TclArgumentBCEnter(
 	 * have to save them at compile time.
 	 */
 
+        if (ePtr->nline != objc) {
+            Tcl_Panic ("TIP 280 data structure inconsistency");
+        }
+
 	for (word = 1; word < objc; word++) {
 	    if (ePtr->line[word] >= 0) {
 		int isnew;
diff --git a/generic/tclCompile.c b/generic/tclCompile.c
index 2194ae1..0eaf834 100644
--- a/generic/tclCompile.c
+++ b/generic/tclCompile.c
@@ -3320,6 +3320,70 @@ TclFixupForwardJump(
 		    rangePtr->type);
 	}
     }
+
+    /*
+     * TIP #280: Adjust the mapping from PC values to the per-command
+     * information about arguments and their line numbers.
+     *
+     * Note: We cannot simply remove an out-of-date entry and then reinsert
+     * with the proper PC, because then we might overwrite another entry which
+     * was at that location. Therefore we pull (copy + delete) all effected
+     * entries (beyond the fixed PC) into an array, update them there, and at
+     * last reinsert them all.
+     */
+
+    {
+	ExtCmdLoc* eclPtr = envPtr->extCmdMapPtr;
+
+	/* A helper structure */
+
+	typedef struct {
+	    int pc;
+	    int cmd;
+	} MAP;
+
+	/*
+	 * And the helper array. At most the whole hashtable is placed into
+	 * this.
+	 */
+
+	MAP *map = (MAP*) ckalloc (sizeof(MAP) * eclPtr->litInfo.numEntries);
+
+	Tcl_HashSearch hSearch;
+	Tcl_HashEntry* hPtr;
+	int n, k, isnew;
+
+	/*
+	 * Phase I: Locate the affected entries, and save them in adjusted
+	 * form to the array. This removes them from the hash.
+	 */
+
+	for (n = 0, hPtr = Tcl_FirstHashEntry(&eclPtr->litInfo, &hSearch);
+	     hPtr != NULL;
+	     hPtr = Tcl_NextHashEntry(&hSearch)) {
+
+	    map [n].cmd = PTR2INT(Tcl_GetHashValue(hPtr));
+	    map [n].pc  = PTR2INT(Tcl_GetHashKey (&eclPtr->litInfo,hPtr));
+
+	    if (map[n].pc >= (jumpFixupPtr->codeOffset + 2)) {
+		Tcl_DeleteHashEntry(hPtr);
+		map [n].pc += 3;
+		n++;
+	    }
+	}
+
+	/*
+	 * Phase II: Re-insert the modified entries into the hash.
+	 */
+
+	for (k=0;k<n;k++) {
+	    hPtr = Tcl_CreateHashEntry(&eclPtr->litInfo, INT2PTR(map[k].pc), &isnew);
+	    Tcl_SetHashValue(hPtr, INT2PTR(map[k].cmd));
+	}
+
+	ckfree (map);
+    }
+
     return 1;			/* the jump was grown */
 }
 
diff --git a/generic/tclInt.h b/generic/tclInt.h
index d010284..cde46ac 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -2443,6 +2443,8 @@ typedef struct List {
 
 #define LIST_MAX \
 	(1 + (int)(((size_t)UINT_MAX - sizeof(List))/sizeof(Tcl_Obj *)))
+#define LIST_SIZE(numElems) \
+	(unsigned)(sizeof(List) + (((numElems) - 1) * sizeof(Tcl_Obj *)))
 
 /*
  * Macro used to get the elements of a list object.
diff --git a/generic/tclListObj.c b/generic/tclListObj.c
index e1c415b..ac87628 100644
--- a/generic/tclListObj.c
+++ b/generic/tclListObj.c
@@ -101,11 +101,11 @@ NewListIntRep(
 	return NULL;
     }
 
-    listRepPtr = attemptckalloc(sizeof(List) + ((objc-1) * sizeof(Tcl_Obj*)));
+    listRepPtr = attemptckalloc(LIST_SIZE(objc));
     if (listRepPtr == NULL) {
 	if (p) {
 	    Tcl_Panic("list creation failed: unable to alloc %u bytes",
-		    (unsigned)(sizeof(List) + ((objc-1) * sizeof(Tcl_Obj *))));
+		    LIST_SIZE(objc));
 	}
 	return NULL;
     }
@@ -168,7 +168,7 @@ AttemptNewList(
 	} else {
 	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 		    "list creation failed: unable to alloc %u bytes",
-		    (unsigned)(sizeof(List) + ((objc-1) * sizeof(Tcl_Obj *)))));
+		    LIST_SIZE(objc)));
 	}
 	Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL);
     }
@@ -511,31 +511,24 @@ Tcl_ListObjAppendList(
     register Tcl_Obj *listPtr,	/* List object to append elements to. */
     Tcl_Obj *elemListPtr)	/* List obj with elements to append. */
 {
-    int listLen, objc, result;
+    int objc;
     Tcl_Obj **objv;
 
     if (Tcl_IsShared(listPtr)) {
 	Tcl_Panic("%s called with shared object", "Tcl_ListObjAppendList");
     }
 
-/*
-    result = TclListObjLength(interp, listPtr, &listLen);
-    if (result != TCL_OK) {
-	return result;
-    }
-*/
-
-    result = TclListObjGetElements(interp, elemListPtr, &objc, &objv);
-    if (result != TCL_OK) {
-	return result;
+    /* Pull the elements to append from elemListPtr */
+    if (TCL_OK != TclListObjGetElements(interp, elemListPtr, &objc, &objv)) {
+	return TCL_ERROR;
     }
 
     /*
-     * Insert objc new elements starting after the lists's last element.
+     * Insert the new elements starting after the lists's last element.
      * Delete zero existing elements.
      */
 
-    return Tcl_ListObjReplace(interp, listPtr, /*listLen*/LIST_MAX, 0, objc, objv);
+    return Tcl_ListObjReplace(interp, listPtr, LIST_MAX, 0, objc, objv);
 }
 
 /*
@@ -571,12 +564,8 @@ Tcl_ListObjAppendElement(
     Tcl_Obj *listPtr,		/* List object to append objPtr to. */
     Tcl_Obj *objPtr)		/* Object to append to listPtr's list. */
 {
-#if 1
-    return Tcl_ListObjReplace(interp, listPtr, LIST_MAX, 0, 1, &objPtr);
-#else
-    register List *listRepPtr;
-    register Tcl_Obj **elemPtrs;
-    int numElems, numRequired, newMax, newSize, i;
+    register List *listRepPtr, *newPtr = NULL;
+    int numElems, numRequired, needGrow, isShared, attempt;
 
     if (Tcl_IsShared(listPtr)) {
 	Tcl_Panic("%s called with shared object", "Tcl_ListObjAppendElement");
@@ -597,41 +586,90 @@ Tcl_ListObjAppendElement(
     listRepPtr = ListRepPtr(listPtr);
     numElems = listRepPtr->elemCount;
     numRequired = numElems + 1 ;
+    needGrow = (numRequired > listRepPtr->maxElemCount);
+    isShared = (listRepPtr->refCount > 1);
 
-    /*
-     * If there is no room in the current array of element pointers, allocate
-     * a new, larger array and copy the pointers to it. If the List struct is
-     * shared, allocate a new one.
-     */
-
-    if (numRequired > listRepPtr->maxElemCount){
-	newMax = 2 * numRequired;
-	newSize = sizeof(List) + ((newMax-1) * sizeof(Tcl_Obj *));
-    } else {
-	newMax = listRepPtr->maxElemCount;
-	newSize = 0;
+    if (numRequired > LIST_MAX) {
+	if (interp != NULL) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "max length of a Tcl list (%d elements) exceeded",
+		    LIST_MAX));
+	    Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL);
+	}
+	return TCL_ERROR;
     }
 
-    if (listRepPtr->refCount > 1) {
-	List *oldListRepPtr = listRepPtr;
-	Tcl_Obj **oldElems;
+    if (needGrow && !isShared) {
+	/* Need to grow + unshared intrep => try to realloc */
+	attempt = 2 * numRequired;
+	if (attempt <= LIST_MAX) {
+	    newPtr = attemptckrealloc(listRepPtr, LIST_SIZE(attempt));
+	}
+	if (newPtr == NULL) {
+	    attempt = numRequired + 1 + TCL_MIN_ELEMENT_GROWTH;
+	    if (attempt > LIST_MAX) {
+		attempt = LIST_MAX;
+	    }
+	    newPtr = attemptckrealloc(listRepPtr, LIST_SIZE(attempt));
+	}
+	if (newPtr == NULL) {
+	    attempt = numRequired;
+	    newPtr = attemptckrealloc(listRepPtr, LIST_SIZE(attempt));
+	}
+	if (newPtr) {
+	    listRepPtr = newPtr;
+	    listRepPtr->maxElemCount = attempt;
+	    needGrow = 0;
+	}
+    }
+    if (isShared || needGrow) {
+	Tcl_Obj **dst, **src = &listRepPtr->elements;
 
-	listRepPtr = AttemptNewList(interp, newMax, NULL);
-	if (listRepPtr == NULL) {
+	/*
+	 * Either we have a shared intrep and we must copy to write,
+	 * or we need to grow and realloc attempts failed.
+	 * Attempt intrep copy.
+	 */
+	attempt = 2 * numRequired;
+	newPtr = AttemptNewList(NULL, attempt, NULL);
+	if (newPtr == NULL) {
+	    attempt = numRequired + 1 + TCL_MIN_ELEMENT_GROWTH;
+	    if (attempt > LIST_MAX) {
+		attempt = LIST_MAX;
+	    }
+	    newPtr = AttemptNewList(NULL, attempt, NULL);
+	}
+	if (newPtr == NULL) {
+	    attempt = numRequired;
+	    newPtr = AttemptNewList(interp, attempt, NULL);
+	}
+	if (newPtr == NULL) {
+	    /* All growth attempts failed; throw the error */
 	    return TCL_ERROR;
 	}
-	oldElems = &oldListRepPtr->elements;
-	elemPtrs = &listRepPtr->elements;
-	for (i=0; i<numElems; i++) {
-	    elemPtrs[i] = oldElems[i];
-	    Tcl_IncrRefCount(elemPtrs[i]);
+
+	dst = &newPtr->elements;
+	newPtr->refCount++;
+	newPtr->canonicalFlag = listRepPtr->canonicalFlag;
+	newPtr->elemCount = listRepPtr->elemCount;
+
+	if (isShared) {
+	    /*
+	     * The original intrep must remain undisturbed.
+	     * Copy into the new one and bump refcounts
+	     */
+	    while (numElems--) {
+		*dst = *src++;
+		Tcl_IncrRefCount(*dst++);
+	    }
+	    listRepPtr->refCount--;
+	} else {
+	    /* Old intrep to be freed, re-use refCounts */
+	    memcpy(dst, src, (size_t) numElems * sizeof(Tcl_Obj *));
+
+	    ckfree(listRepPtr);
 	}
-	listRepPtr->elemCount = numElems;
-	listRepPtr->refCount++;
-	oldListRepPtr->refCount--;
-    } else if (newSize) {
-	listRepPtr = ckrealloc(listRepPtr, newSize);
-	listRepPtr->maxElemCount = newMax;
+	listRepPtr = newPtr;
     }
     listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr;
 
@@ -640,8 +678,7 @@ Tcl_ListObjAppendElement(
      * the ref count for the (now shared) objPtr.
      */
 
-    elemPtrs = &listRepPtr->elements;
-    elemPtrs[numElems] = objPtr;
+    *(&listRepPtr->elements + listRepPtr->elemCount) = objPtr;
     Tcl_IncrRefCount(objPtr);
     listRepPtr->elemCount++;
 
@@ -652,7 +689,6 @@ Tcl_ListObjAppendElement(
 
     Tcl_InvalidateStringRep(listPtr);
     return TCL_OK;
-#endif
 }
 
 /*
@@ -1563,7 +1599,6 @@ TclListObjSetElement(
 
     listRepPtr = ListRepPtr(listPtr);
     elemCount = listRepPtr->elemCount;
-    elemPtrs = &listRepPtr->elements;
 
     /*
      * Ensure that the index is in bounds.
@@ -1584,25 +1619,30 @@ TclListObjSetElement(
      */
 
     if (listRepPtr->refCount > 1) {
-	List *oldListRepPtr = listRepPtr;
-	Tcl_Obj **oldElemPtrs = elemPtrs;
-	int i;
+	Tcl_Obj **dst, **src = &listRepPtr->elements;
+	List *newPtr = AttemptNewList(NULL, listRepPtr->maxElemCount, NULL);
 
-	listRepPtr = AttemptNewList(interp, listRepPtr->maxElemCount, NULL);
-	if (listRepPtr == NULL) {
-	    return TCL_ERROR;
+	if (newPtr == NULL) {
+	    newPtr = AttemptNewList(interp, elemCount, NULL);
+	    if (newPtr == NULL) {
+		return TCL_ERROR;
+	    }
 	}
-	listRepPtr->canonicalFlag = oldListRepPtr->canonicalFlag;
-	elemPtrs = &listRepPtr->elements;
-	for (i=0; i < elemCount; i++) {
-	    elemPtrs[i] = oldElemPtrs[i];
-	    Tcl_IncrRefCount(elemPtrs[i]);
+	newPtr->refCount++;
+	newPtr->elemCount = elemCount;
+	newPtr->canonicalFlag = listRepPtr->canonicalFlag;
+
+	dst = &newPtr->elements;
+	while (elemCount--) {
+	    *dst = *src++;
+	    Tcl_IncrRefCount(*dst++);
 	}
-	listRepPtr->refCount++;
-	listRepPtr->elemCount = elemCount;
-	listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr;
-	oldListRepPtr->refCount--;
+
+	listRepPtr->refCount--;
+
+	listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr = newPtr;
     }
+    elemPtrs = &listRepPtr->elements;
 
     /*
      * Add a reference to the new list element.
diff --git a/generic/tclOO.c b/generic/tclOO.c
index 6ae82d1..9df3f53 100644
--- a/generic/tclOO.c
+++ b/generic/tclOO.c
@@ -346,6 +346,8 @@ InitFoundation(
 
     Tcl_CreateObjCommand(interp, "::oo::Helpers::next", TclOONextObjCmd, NULL,
 	    NULL);
+    Tcl_CreateObjCommand(interp, "::oo::Helpers::nextto", TclOONextToObjCmd,
+	    NULL, NULL);
     Tcl_CreateObjCommand(interp, "::oo::Helpers::self", TclOOSelfObjCmd, NULL,
 	    NULL);
     Tcl_CreateObjCommand(interp, "::oo::define", TclOODefineObjCmd, NULL,
diff --git a/generic/tclOO.h b/generic/tclOO.h
index ed70c08..c791930 100644
--- a/generic/tclOO.h
+++ b/generic/tclOO.h
@@ -24,7 +24,7 @@
  * win/tclooConfig.sh
  */
 
-#define TCLOO_VERSION "0.6.2"
+#define TCLOO_VERSION "0.6.3"
 #define TCLOO_PATCHLEVEL TCLOO_VERSION
 
 /*
diff --git a/generic/tclOOBasic.c b/generic/tclOOBasic.c
index 0d38dcd..b286088 100644
--- a/generic/tclOOBasic.c
+++ b/generic/tclOOBasic.c
@@ -680,10 +680,11 @@ TclOO_Object_VarName(
 /*
  * ----------------------------------------------------------------------
  *
- * TclOONextObjCmd --
+ * TclOONextObjCmd, TclOONextToObjCmd --
  *
- *	Implementation of the [next] command. Note that this command is only
- *	ever to be used inside the body of a procedure-like method.
+ *	Implementation of the [next] and [nextto] commands. Note that these
+ *	commands are only ever to be used inside the body of a procedure-like
+ *	method.
  *
  * ----------------------------------------------------------------------
  */
@@ -723,6 +724,97 @@ TclOONextObjCmd(
     return TclNRObjectContextInvokeNext(interp, context, objc, objv, 1);
 }
 
+int
+TclOONextToObjCmd(
+    ClientData clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const *objv)
+{
+    Interp *iPtr = (Interp *) interp;
+    CallFrame *framePtr = iPtr->varFramePtr;
+    Class *classPtr;
+    CallContext *contextPtr;
+    int i;
+    Tcl_Object object;
+
+    /*
+     * Start with sanity checks on the calling context to make sure that we
+     * are invoked from a suitable method context. If so, we can safely
+     * retrieve the handle to the object call context.
+     */
+
+    if (framePtr == NULL || !(framePtr->isProcCallFrame & FRAME_IS_METHOD)) {
+	Tcl_AppendResult(interp, TclGetString(objv[0]),
+		" may only be called from inside a method", NULL);
+	Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", NULL);
+	return TCL_ERROR;
+    }
+    contextPtr = framePtr->clientData;
+
+    /*
+     * Sanity check the arguments; we need the first one to refer to a class.
+     */
+
+    if (objc < 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "class ?arg...?");
+	return TCL_ERROR;
+    }
+    object = Tcl_GetObjectFromObj(interp, objv[1]);
+    if (object == NULL) {
+	return TCL_ERROR;
+    }
+    classPtr = ((Object *)object)->classPtr;
+    if (classPtr == NULL) {
+	Tcl_AppendResult(interp, "\"", TclGetString(objv[1]),
+		"\" is not a class", NULL);
+	return TCL_ERROR;
+    }
+
+    /*
+     * Search for an implementation of a method associated with the current
+     * call on the call chain past the point where we currently are. Do not
+     * allow jumping backwards!
+     */
+
+    for (i=contextPtr->index+1 ; i<contextPtr->callPtr->numChain ; i++) {
+	struct MInvoke *miPtr = contextPtr->callPtr->chain + i;
+
+	if (!miPtr->isFilter && miPtr->mPtr->declaringClassPtr == classPtr) {
+	    /*
+	     * Invoke the (advanced) method call context in the caller
+	     * context. Note that this is like [uplevel 1] and not [eval].
+	     */
+
+	    TclNRAddCallback(interp, RestoreFrame, framePtr, contextPtr,
+		    INT2PTR(contextPtr->index), NULL);
+	    contextPtr->index = i-1;
+	    iPtr->varFramePtr = framePtr->callerVarPtr;
+	    return TclNRObjectContextInvokeNext(interp,
+		    (Tcl_ObjectContext) contextPtr, objc, objv, 2);
+	}
+    }
+
+    /*
+     * Generate an appropriate error message, depending on whether the value
+     * is on the chain but unreachable, or not on the chain at all.
+     */
+
+    for (i=contextPtr->index ; i>=0 ; i--) {
+	struct MInvoke *miPtr = contextPtr->callPtr->chain + i;
+
+	if (!miPtr->isFilter && miPtr->mPtr->declaringClassPtr == classPtr) {
+	    Tcl_AppendResult(interp, "method implementation by \"",
+		    TclGetString(objv[1]), "\" not reachable from here",
+		    NULL);
+	    return TCL_ERROR;
+	}
+    }
+    Tcl_AppendResult(interp, "method has no non-filter implementation by \"",
+	    TclGetString(objv[1]), "\"", NULL);
+    return TCL_ERROR;
+}
+
 static int
 RestoreFrame(
     ClientData data[],
@@ -730,8 +822,12 @@ RestoreFrame(
     int result)
 {
     Interp *iPtr = (Interp *) interp;
+    CallContext *contextPtr = data[1];
 
     iPtr->varFramePtr = data[0];
+    if (contextPtr != NULL) {
+	contextPtr->index = PTR2INT(data[2]);
+    }
     return result;
 }
 
@@ -754,16 +850,17 @@ TclOOSelfObjCmd(
     Tcl_Obj *const *objv)
 {
     static const char *const subcmds[] = {
-	"caller", "class", "filter", "method", "namespace", "next", "object",
-	"target", NULL
+	"call", "caller", "class", "filter", "method", "namespace", "next",
+	"object", "target", NULL
     };
     enum SelfCmds {
-	SELF_CALLER, SELF_CLASS, SELF_FILTER, SELF_METHOD, SELF_NS, SELF_NEXT,
-	SELF_OBJECT, SELF_TARGET
+	SELF_CALL, SELF_CALLER, SELF_CLASS, SELF_FILTER, SELF_METHOD, SELF_NS,
+	SELF_NEXT, SELF_OBJECT, SELF_TARGET
     };
     Interp *iPtr = (Interp *) interp;
     CallFrame *framePtr = iPtr->varFramePtr;
     CallContext *contextPtr;
+    Tcl_Obj *result[3];
     int index;
 
 #define CurrentlyInvoked(contextPtr) \
@@ -834,7 +931,6 @@ TclOOSelfObjCmd(
 	    return TCL_ERROR;
 	} else {
 	    register struct MInvoke *miPtr = &CurrentlyInvoked(contextPtr);
-	    Tcl_Obj *result[3];
 	    Object *oPtr;
 	    const char *type;
 
@@ -862,7 +958,6 @@ TclOOSelfObjCmd(
 	    CallContext *callerPtr = framePtr->callerVarPtr->clientData;
 	    Method *mPtr = callerPtr->callPtr->chain[callerPtr->index].mPtr;
 	    Object *declarerPtr;
-	    Tcl_Obj *result[3];
 
 	    if (mPtr->declaringClassPtr != NULL) {
 		declarerPtr = mPtr->declaringClassPtr->thisPtr;
@@ -894,7 +989,6 @@ TclOOSelfObjCmd(
 	    Method *mPtr =
 		    contextPtr->callPtr->chain[contextPtr->index+1].mPtr;
 	    Object *declarerPtr;
-	    Tcl_Obj *result[2];
 
 	    if (mPtr->declaringClassPtr != NULL) {
 		declarerPtr = mPtr->declaringClassPtr->thisPtr;
@@ -928,7 +1022,6 @@ TclOOSelfObjCmd(
 	} else {
 	    Method *mPtr;
 	    Object *declarerPtr;
-	    Tcl_Obj *result[2];
 	    int i;
 
 	    for (i=contextPtr->index ; i<contextPtr->callPtr->numChain ; i++){
@@ -957,6 +1050,11 @@ TclOOSelfObjCmd(
 	    Tcl_SetObjResult(interp, Tcl_NewListObj(2, result));
 	    return TCL_OK;
 	}
+    case SELF_CALL:
+	result[0] = TclOORenderCallChain(interp, contextPtr->callPtr);
+	result[1] = Tcl_NewIntObj(contextPtr->index);
+	Tcl_SetObjResult(interp, Tcl_NewListObj(2, result));
+	return TCL_OK;
     }
     return TCL_ERROR;
 }
diff --git a/generic/tclOOCall.c b/generic/tclOOCall.c
index 1e8d1a3..3954a6b 100644
--- a/generic/tclOOCall.c
+++ b/generic/tclOOCall.c
@@ -104,8 +104,10 @@ TclOODeleteContext(
     register Object *oPtr = contextPtr->oPtr;
 
     TclOODeleteChain(contextPtr->callPtr);
-    TclStackFree(oPtr->fPtr->interp, contextPtr);
-    DelRef(oPtr);
+    if (oPtr != NULL) {
+	TclStackFree(oPtr->fPtr->interp, contextPtr);
+	DelRef(oPtr);
+    }
 }
 
 /*
@@ -1099,6 +1101,137 @@ TclOOGetCallContext(
 /*
  * ----------------------------------------------------------------------
  *
+ * TclOOGetStereotypeCallChain --
+ *
+ *	Construct a call-chain for a method that would be used by a
+ *	stereotypical instance of the given class (i.e., where the object has
+ *	no definitions special to itself).
+ *
+ * ----------------------------------------------------------------------
+ */
+
+CallChain *
+TclOOGetStereotypeCallChain(
+    Class *clsPtr,		/* The object to get the context for. */
+    Tcl_Obj *methodNameObj,	/* The name of the method to get the context
+				 * for. NULL when getting a constructor or
+				 * destructor chain. */
+    int flags)			/* What sort of context are we looking for.
+				 * Only the bits PUBLIC_METHOD, CONSTRUCTOR,
+				 * PRIVATE_METHOD, DESTRUCTOR and
+				 * FILTER_HANDLING are useful. */
+{
+    CallChain *callPtr;
+    struct ChainBuilder cb;
+    int i, count;
+    Foundation *fPtr = clsPtr->thisPtr->fPtr;
+    Tcl_HashEntry *hPtr;
+    Tcl_HashTable doneFilters;
+    Object obj;
+
+    /*
+     * Synthesize a temporary stereotypical object so that we can use existing
+     * machinery to produce the stereotypical call chain.
+     */
+
+    memset(&obj, 0, sizeof(Object));
+    obj.fPtr = fPtr;
+    obj.selfCls = clsPtr;
+    obj.refCount = 1;
+    obj.flags = USE_CLASS_CACHE;
+
+    /*
+     * Check if we can get the chain out of the Tcl_Obj method name or out of
+     * the cache. This is made a bit more complex by the fact that there are
+     * multiple different layers of cache (in the Tcl_Obj, in the object, and
+     * in the class).
+     */
+
+    if (clsPtr->classChainCache != NULL) {
+	hPtr = Tcl_FindHashEntry(clsPtr->classChainCache,
+		(char *) methodNameObj);
+	if (hPtr != NULL && Tcl_GetHashValue(hPtr) != NULL) {
+	    const int reuseMask =
+		    ((flags & PUBLIC_METHOD) ? ~0 : ~PUBLIC_METHOD);
+
+	    callPtr = Tcl_GetHashValue(hPtr);
+	    if (IsStillValid(callPtr, &obj, flags, reuseMask)) {
+		callPtr->refCount++;
+		return callPtr;
+	    }
+	    Tcl_SetHashValue(hPtr, NULL);
+	    TclOODeleteChain(callPtr);
+	}
+    } else {
+	hPtr = NULL;
+    }
+
+    callPtr = (CallChain *) ckalloc(sizeof(CallChain));
+    memset(callPtr, 0, sizeof(CallChain));
+    callPtr->flags = flags & (PUBLIC_METHOD|PRIVATE_METHOD|FILTER_HANDLING);
+    callPtr->epoch = fPtr->epoch;
+    callPtr->objectCreationEpoch = fPtr->tsdPtr->nsCount;
+    callPtr->objectEpoch = clsPtr->thisPtr->epoch;
+    callPtr->refCount = 1;
+    callPtr->chain = callPtr->staticChain;
+
+    cb.callChainPtr = callPtr;
+    cb.filterLength = 0;
+    cb.oPtr = &obj;
+
+    /*
+     * Add all defined filters (if any, and if we're going to be processing
+     * them; they're not processed for constructors, destructors or when we're
+     * in the middle of processing a filter).
+     */
+
+    Tcl_InitObjHashTable(&doneFilters);
+    AddClassFiltersToCallContext(&obj, clsPtr, &cb, &doneFilters);
+    Tcl_DeleteHashTable(&doneFilters);
+    count = cb.filterLength = callPtr->numChain;
+
+    /*
+     * Add the actual method implementations.
+     */
+
+    AddSimpleChainToCallContext(&obj, methodNameObj, &cb, NULL, flags, NULL);
+
+    /*
+     * Check to see if the method has no implementation. If so, we probably
+     * need to add in a call to the unknown method. Otherwise, set up the
+     * cacheing of the method implementation (if relevant).
+     */
+
+    if (count == callPtr->numChain) {
+	AddSimpleChainToCallContext(&obj, fPtr->unknownMethodNameObj, &cb,
+		NULL, 0, NULL);
+	callPtr->flags |= OO_UNKNOWN_METHOD;
+	callPtr->epoch = -1;
+	if (count == callPtr->numChain) {
+	    TclOODeleteChain(callPtr);
+	    return NULL;
+	}
+    } else {
+	if (hPtr == NULL) {
+	    if (clsPtr->classChainCache == NULL) {
+		clsPtr->classChainCache = (Tcl_HashTable *)
+			ckalloc(sizeof(Tcl_HashTable));
+
+		Tcl_InitObjHashTable(clsPtr->classChainCache);
+	    }
+	    hPtr = Tcl_CreateHashEntry(clsPtr->classChainCache,
+		    (char *) methodNameObj, &i);
+	}
+	callPtr->refCount++;
+	Tcl_SetHashValue(hPtr, callPtr);
+	StashCallChain(methodNameObj, callPtr);
+    }
+    return callPtr;
+}
+
+/*
+ * ----------------------------------------------------------------------
+ *
  * AddClassFiltersToCallContext --
  *
  *	Logic to make extracting all the filters from the class context much
@@ -1256,6 +1389,92 @@ AddSimpleClassChainToCallContext(
 }
 
 /*
+ * ----------------------------------------------------------------------
+ *
+ * TclOORenderCallChain --
+ *
+ *	Create a description of a call chain. Used in [info object call],
+ *	[info class call], and [self call].
+ *
+ * ----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclOORenderCallChain(
+    Tcl_Interp *interp,
+    CallChain *callPtr)
+{
+    Tcl_Obj *filterLiteral, *methodLiteral, *objectLiteral;
+    Tcl_Obj *resultObj, *descObjs[4], **objv;
+    Foundation *fPtr = TclOOGetFoundation(interp);
+    int i;
+
+    /*
+     * Allocate the literals (potentially) used in our description.
+     */
+
+    filterLiteral = Tcl_NewStringObj("filter", -1);
+    Tcl_IncrRefCount(filterLiteral);
+    methodLiteral = Tcl_NewStringObj("method", -1);
+    Tcl_IncrRefCount(methodLiteral);
+    objectLiteral = Tcl_NewStringObj("object", -1);
+    Tcl_IncrRefCount(objectLiteral);
+
+    /*
+     * Do the actual construction of the descriptions. They consist of a list
+     * of triples that describe the details of how a method is understood. For
+     * each triple, the first word is the type of invokation ("method" is
+     * normal, "unknown" is special because it adds the method name as an
+     * extra argument when handled by some method types, and "filter" is
+     * special because it's a filter method). The second word is the name of
+     * the method in question (which differs for "unknown" and "filter" types)
+     * and the third word is the full name of the class that declares the
+     * method (or "object" if it is declared on the instance).
+     */
+
+    objv = TclStackAlloc(interp, callPtr->numChain * sizeof(Tcl_Obj *));
+    for (i=0 ; i<callPtr->numChain ; i++) {
+	struct MInvoke *miPtr = &callPtr->chain[i];
+
+	descObjs[0] = miPtr->isFilter
+		? filterLiteral
+		: callPtr->flags & OO_UNKNOWN_METHOD
+			? fPtr->unknownMethodNameObj
+			: methodLiteral;
+	descObjs[1] = callPtr->flags & CONSTRUCTOR
+		? fPtr->constructorName
+		: callPtr->flags & DESTRUCTOR
+			? fPtr->destructorName
+			: miPtr->mPtr->namePtr;
+	descObjs[2] = miPtr->mPtr->declaringClassPtr
+		? Tcl_GetObjectName(interp,
+			(Tcl_Object) miPtr->mPtr->declaringClassPtr->thisPtr)
+		: objectLiteral;
+	descObjs[3] = Tcl_NewStringObj(miPtr->mPtr->typePtr->name, -1);
+
+	objv[i] = Tcl_NewListObj(4, descObjs);
+	Tcl_IncrRefCount(objv[i]);
+    }
+
+    /*
+     * Drop the local references to the literals; if they're actually used,
+     * they'll live on the description itself.
+     */
+
+    Tcl_DecrRefCount(filterLiteral);
+    Tcl_DecrRefCount(methodLiteral);
+    Tcl_DecrRefCount(objectLiteral);
+
+    /*
+     * Finish building the description and return it.
+     */
+
+    resultObj = Tcl_NewListObj(callPtr->numChain, objv);
+    TclStackFree(interp, objv);
+    return resultObj;
+}
+
+/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4
diff --git a/generic/tclOOInfo.c b/generic/tclOOInfo.c
index 4f25772..ac8ae46 100644
--- a/generic/tclOOInfo.c
+++ b/generic/tclOOInfo.c
@@ -17,6 +17,7 @@
 #include "tclOOInt.h"
 
 static inline Class *	GetClassFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr);
+static Tcl_ObjCmdProc InfoObjectCallCmd;
 static Tcl_ObjCmdProc InfoObjectClassCmd;
 static Tcl_ObjCmdProc InfoObjectDefnCmd;
 static Tcl_ObjCmdProc InfoObjectFiltersCmd;
@@ -28,6 +29,7 @@ static Tcl_ObjCmdProc InfoObjectMixinsCmd;
 static Tcl_ObjCmdProc InfoObjectNsCmd;
 static Tcl_ObjCmdProc InfoObjectVarsCmd;
 static Tcl_ObjCmdProc InfoObjectVariablesCmd;
+static Tcl_ObjCmdProc InfoClassCallCmd;
 static Tcl_ObjCmdProc InfoClassConstrCmd;
 static Tcl_ObjCmdProc InfoClassDefnCmd;
 static Tcl_ObjCmdProc InfoClassDestrCmd;
@@ -48,6 +50,7 @@ struct NameProcMap { const char *name; Tcl_ObjCmdProc *proc; };
  */
 
 static const struct NameProcMap infoObjectCmds[] = {
+    {"::oo::InfoObject::call",		InfoObjectCallCmd},
     {"::oo::InfoObject::class",		InfoObjectClassCmd},
     {"::oo::InfoObject::definition",	InfoObjectDefnCmd},
     {"::oo::InfoObject::filters",	InfoObjectFiltersCmd},
@@ -67,6 +70,7 @@ static const struct NameProcMap infoObjectCmds[] = {
  */
 
 static const struct NameProcMap infoClassCmds[] = {
+    {"::oo::InfoClass::call",		InfoClassCallCmd},
     {"::oo::InfoClass::constructor",	InfoClassConstrCmd},
     {"::oo::InfoClass::definition",	InfoClassDefnCmd},
     {"::oo::InfoClass::destructor",	InfoClassDestrCmd},
@@ -1456,6 +1460,92 @@ InfoClassVariablesCmd(
 }
 
 /*
+ * ----------------------------------------------------------------------
+ *
+ * InfoObjectCallCmd --
+ *
+ *	Implements [info object call $objName $methodName]
+ *
+ * ----------------------------------------------------------------------
+ */
+
+static int
+InfoObjectCallCmd(
+    ClientData clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Object *oPtr;
+    CallContext *contextPtr;
+
+    if (objc != 3) {
+	Tcl_WrongNumArgs(interp, 1, objv, "objName methodName");
+	return TCL_ERROR;
+    }
+    oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[1]);
+    if (oPtr == NULL) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Get the call context and render its call chain.
+     */
+
+    contextPtr = TclOOGetCallContext(oPtr, objv[2], PUBLIC_METHOD, NULL);
+    if (contextPtr == NULL) {
+	Tcl_AppendResult(interp, "cannot construct any call chain", NULL);
+	return TCL_ERROR;
+    }
+    Tcl_SetObjResult(interp,
+	    TclOORenderCallChain(interp, contextPtr->callPtr));
+    TclOODeleteContext(contextPtr);
+    return TCL_OK;
+}
+
+/*
+ * ----------------------------------------------------------------------
+ *
+ * InfoClassCallCmd --
+ *
+ *	Implements [info class call $clsName $methodName]
+ *
+ * ----------------------------------------------------------------------
+ */
+
+static int
+InfoClassCallCmd(
+    ClientData clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Class *clsPtr;
+    CallChain *callPtr;
+
+    if (objc != 3) {
+	Tcl_WrongNumArgs(interp, 1, objv, "className methodName");
+	return TCL_ERROR;
+    }
+    clsPtr = GetClassFromObj(interp, objv[1]);
+    if (clsPtr == NULL) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Get an render the stereotypical call chain.
+     */
+
+    callPtr = TclOOGetStereotypeCallChain(clsPtr, objv[2], PUBLIC_METHOD);
+    if (callPtr == NULL) {
+	Tcl_AppendResult(interp, "cannot construct any call chain", NULL);
+	return TCL_ERROR;
+    }
+    Tcl_SetObjResult(interp, TclOORenderCallChain(interp, callPtr));
+    return TCL_OK;
+}
+
+/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4
diff --git a/generic/tclOOInt.h b/generic/tclOOInt.h
index bd32f22..b151183 100644
--- a/generic/tclOOInt.h
+++ b/generic/tclOOInt.h
@@ -465,6 +465,9 @@ MODULE_SCOPE int	TclOOCopyObjectCmd(ClientData clientData,
 MODULE_SCOPE int	TclOONextObjCmd(ClientData clientData,
 			    Tcl_Interp *interp, int objc,
 			    Tcl_Obj *const *objv);
+MODULE_SCOPE int	TclOONextToObjCmd(ClientData clientData,
+			    Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const *objv);
 MODULE_SCOPE int	TclOOSelfObjCmd(ClientData clientData,
 			    Tcl_Interp *interp, int objc,
 			    Tcl_Obj *const *objv);
@@ -518,6 +521,8 @@ MODULE_SCOPE void	TclOODelMethodRef(Method *method);
 MODULE_SCOPE CallContext *TclOOGetCallContext(Object *oPtr,
 			    Tcl_Obj *methodNameObj, int flags,
 			    Tcl_Obj *cacheInThisObj);
+MODULE_SCOPE CallChain *TclOOGetStereotypeCallChain(Class *clsPtr,
+			    Tcl_Obj *methodNameObj, int flags);
 MODULE_SCOPE Foundation	*TclOOGetFoundation(Tcl_Interp *interp);
 MODULE_SCOPE Tcl_Obj *	TclOOGetFwdFromMethod(Method *mPtr);
 MODULE_SCOPE Proc *	TclOOGetProcFromMethod(Method *mPtr);
@@ -544,6 +549,8 @@ MODULE_SCOPE void	TclOORemoveFromMixinSubs(Class *subPtr,
 			    Class *mixinPtr);
 MODULE_SCOPE void	TclOORemoveFromSubclasses(Class *subPtr,
 			    Class *superPtr);
+MODULE_SCOPE Tcl_Obj *	TclOORenderCallChain(Tcl_Interp *interp,
+			    CallChain *callPtr);
 MODULE_SCOPE void	TclOOStashContext(Tcl_Obj *objPtr,
 			    CallContext *contextPtr);
 MODULE_SCOPE void	TclOOSetupVariableResolver(Tcl_Namespace *nsPtr);
diff --git a/generic/tclUtil.c b/generic/tclUtil.c
index 3b5b527..ce66096 100644
--- a/generic/tclUtil.c
+++ b/generic/tclUtil.c
@@ -1778,31 +1778,16 @@ Tcl_ConcatObj(
 	}
     }
     if (i == objc) {
-	Tcl_Obj **listv;
-	int listc;
-
 	resPtr = NULL;
 	for (i = 0;  i < objc;  i++) {
-	    /*
-	     * Tcl_ListObjAppendList could be used here, but this saves us a
-	     * bit of type checking (since we've already done it). Use of
-	     * LIST_MAX tells us to always put the new stuff on the end. It
-	     * will be set right in Tcl_ListObjReplace.
-	     * Note that all objs at this point are either lists or have an
-	     * empty string rep.
-	     */
-
 	    objPtr = objv[i];
 	    if (objPtr->bytes && objPtr->length == 0) {
 		continue;
 	    }
-	    TclListObjGetElements(NULL, objPtr, &listc, &listv);
-	    if (listc) {
-		if (resPtr) {
-		    Tcl_ListObjReplace(NULL, resPtr, LIST_MAX, 0, listc, listv);
-		} else {
-		    resPtr = TclListObjCopy(NULL, objPtr);
-		}
+	    if (resPtr) {
+		Tcl_ListObjAppendList(NULL, resPtr, objPtr);
+	    } else {
+		resPtr = TclListObjCopy(NULL, objPtr);
 	    }
 	}
 	if (!resPtr) {
diff --git a/library/msgcat/msgcat.tcl b/library/msgcat/msgcat.tcl
index a9b4533..369ed52 100644
--- a/library/msgcat/msgcat.tcl
+++ b/library/msgcat/msgcat.tcl
@@ -13,7 +13,7 @@
 package require Tcl 8.5
 # When the version number changes, be sure to update the pkgIndex.tcl file,
 # and the installation directory in the Makefiles.
-package provide msgcat 1.4.3
+package provide msgcat 1.4.4
 
 namespace eval msgcat {
     namespace export mc mcload mclocale mcmax mcmset mcpreferences mcset \
@@ -313,13 +313,6 @@ proc msgcat::mcset {locale src {dest ""}} {
 
     set locale [string tolower $locale]
 
-    # create nested dictionaries if they do not exist
-    if {![dict exists $Msgs $locale]} {
-        dict set Msgs $locale  [dict create]
-    }
-    if {![dict exists $Msgs $locale $ns]} {
-        dict set Msgs $locale $ns [dict create]
-    }
     dict set Msgs $locale $ns $src $dest
     return $dest
 }
@@ -347,13 +340,6 @@ proc msgcat::mcmset {locale pairs } {
     set locale [string tolower $locale]
     set ns [uplevel 1 [list ::namespace current]]
 
-    # create nested dictionaries if they do not exist
-    if {![dict exists $Msgs $locale]} {
-        dict set Msgs $locale  [dict create]
-    }
-    if {![dict exists $Msgs $locale $ns]} {
-        dict set Msgs $locale $ns [dict create]
-    }
     foreach {src dest} $pairs {
         dict set Msgs $locale $ns $src $dest
     }
diff --git a/library/msgcat/pkgIndex.tcl b/library/msgcat/pkgIndex.tcl
index 63ed8ed..17ad5db 100644
--- a/library/msgcat/pkgIndex.tcl
+++ b/library/msgcat/pkgIndex.tcl
@@ -1,2 +1,2 @@
 if {![package vsatisfies [package provide Tcl] 8.5]} {return}
-package ifneeded msgcat 1.4.3 [list source [file join $dir msgcat.tcl]]
+package ifneeded msgcat 1.4.4 [list source [file join $dir msgcat.tcl]]
diff --git a/library/tzdata/Africa/Cairo b/library/tzdata/Africa/Cairo
index 10d7193..165d8c4 100644
--- a/library/tzdata/Africa/Cairo
+++ b/library/tzdata/Africa/Cairo
@@ -125,182 +125,4 @@ set TZData(:Africa/Cairo) {
     {1281474000 7200 0 EET}
     {1284069600 10800 1 EEST}
     {1285880400 7200 0 EET}
-    {1304028000 10800 1 EEST}
-    {1317330000 7200 0 EET}
-    {1335477600 10800 1 EEST}
-    {1348779600 7200 0 EET}
-    {1366927200 10800 1 EEST}
-    {1380229200 7200 0 EET}
-    {1398376800 10800 1 EEST}
-    {1411678800 7200 0 EET}
-    {1429826400 10800 1 EEST}
-    {1443128400 7200 0 EET}
-    {1461880800 10800 1 EEST}
-    {1475182800 7200 0 EET}
-    {1493330400 10800 1 EEST}
-    {1506632400 7200 0 EET}
-    {1524780000 10800 1 EEST}
-    {1538082000 7200 0 EET}
-    {1556229600 10800 1 EEST}
-    {1569531600 7200 0 EET}
-    {1587679200 10800 1 EEST}
-    {1600981200 7200 0 EET}
-    {1619733600 10800 1 EEST}
-    {1633035600 7200 0 EET}
-    {1651183200 10800 1 EEST}
-    {1664485200 7200 0 EET}
-    {1682632800 10800 1 EEST}
-    {1695934800 7200 0 EET}
-    {1714082400 10800 1 EEST}
-    {1727384400 7200 0 EET}
-    {1745532000 10800 1 EEST}
-    {1758834000 7200 0 EET}
-    {1776981600 10800 1 EEST}
-    {1790283600 7200 0 EET}
-    {1809036000 10800 1 EEST}
-    {1822338000 7200 0 EET}
-    {1840485600 10800 1 EEST}
-    {1853787600 7200 0 EET}
-    {1871935200 10800 1 EEST}
-    {1885237200 7200 0 EET}
-    {1903384800 10800 1 EEST}
-    {1916686800 7200 0 EET}
-    {1934834400 10800 1 EEST}
-    {1948136400 7200 0 EET}
-    {1966888800 10800 1 EEST}
-    {1980190800 7200 0 EET}
-    {1998338400 10800 1 EEST}
-    {2011640400 7200 0 EET}
-    {2029788000 10800 1 EEST}
-    {2043090000 7200 0 EET}
-    {2061237600 10800 1 EEST}
-    {2074539600 7200 0 EET}
-    {2092687200 10800 1 EEST}
-    {2105989200 7200 0 EET}
-    {2124136800 10800 1 EEST}
-    {2137438800 7200 0 EET}
-    {2156191200 10800 1 EEST}
-    {2169493200 7200 0 EET}
-    {2187640800 10800 1 EEST}
-    {2200942800 7200 0 EET}
-    {2219090400 10800 1 EEST}
-    {2232392400 7200 0 EET}
-    {2250540000 10800 1 EEST}
-    {2263842000 7200 0 EET}
-    {2281989600 10800 1 EEST}
-    {2295291600 7200 0 EET}
-    {2313439200 10800 1 EEST}
-    {2326741200 7200 0 EET}
-    {2345493600 10800 1 EEST}
-    {2358795600 7200 0 EET}
-    {2376943200 10800 1 EEST}
-    {2390245200 7200 0 EET}
-    {2408392800 10800 1 EEST}
-    {2421694800 7200 0 EET}
-    {2439842400 10800 1 EEST}
-    {2453144400 7200 0 EET}
-    {2471292000 10800 1 EEST}
-    {2484594000 7200 0 EET}
-    {2503346400 10800 1 EEST}
-    {2516648400 7200 0 EET}
-    {2534796000 10800 1 EEST}
-    {2548098000 7200 0 EET}
-    {2566245600 10800 1 EEST}
-    {2579547600 7200 0 EET}
-    {2597695200 10800 1 EEST}
-    {2610997200 7200 0 EET}
-    {2629144800 10800 1 EEST}
-    {2642446800 7200 0 EET}
-    {2660594400 10800 1 EEST}
-    {2673896400 7200 0 EET}
-    {2692648800 10800 1 EEST}
-    {2705950800 7200 0 EET}
-    {2724098400 10800 1 EEST}
-    {2737400400 7200 0 EET}
-    {2755548000 10800 1 EEST}
-    {2768850000 7200 0 EET}
-    {2786997600 10800 1 EEST}
-    {2800299600 7200 0 EET}
-    {2818447200 10800 1 EEST}
-    {2831749200 7200 0 EET}
-    {2850501600 10800 1 EEST}
-    {2863803600 7200 0 EET}
-    {2881951200 10800 1 EEST}
-    {2895253200 7200 0 EET}
-    {2913400800 10800 1 EEST}
-    {2926702800 7200 0 EET}
-    {2944850400 10800 1 EEST}
-    {2958152400 7200 0 EET}
-    {2976300000 10800 1 EEST}
-    {2989602000 7200 0 EET}
-    {3007749600 10800 1 EEST}
-    {3021051600 7200 0 EET}
-    {3039804000 10800 1 EEST}
-    {3053106000 7200 0 EET}
-    {3071253600 10800 1 EEST}
-    {3084555600 7200 0 EET}
-    {3102703200 10800 1 EEST}
-    {3116005200 7200 0 EET}
-    {3134152800 10800 1 EEST}
-    {3147454800 7200 0 EET}
-    {3165602400 10800 1 EEST}
-    {3178904400 7200 0 EET}
-    {3197052000 10800 1 EEST}
-    {3210354000 7200 0 EET}
-    {3229106400 10800 1 EEST}
-    {3242408400 7200 0 EET}
-    {3260556000 10800 1 EEST}
-    {3273858000 7200 0 EET}
-    {3292005600 10800 1 EEST}
-    {3305307600 7200 0 EET}
-    {3323455200 10800 1 EEST}
-    {3336757200 7200 0 EET}
-    {3354904800 10800 1 EEST}
-    {3368206800 7200 0 EET}
-    {3386959200 10800 1 EEST}
-    {3400261200 7200 0 EET}
-    {3418408800 10800 1 EEST}
-    {3431710800 7200 0 EET}
-    {3449858400 10800 1 EEST}
-    {3463160400 7200 0 EET}
-    {3481308000 10800 1 EEST}
-    {3494610000 7200 0 EET}
-    {3512757600 10800 1 EEST}
-    {3526059600 7200 0 EET}
-    {3544207200 10800 1 EEST}
-    {3557509200 7200 0 EET}
-    {3576261600 10800 1 EEST}
-    {3589563600 7200 0 EET}
-    {3607711200 10800 1 EEST}
-    {3621013200 7200 0 EET}
-    {3639160800 10800 1 EEST}
-    {3652462800 7200 0 EET}
-    {3670610400 10800 1 EEST}
-    {3683912400 7200 0 EET}
-    {3702060000 10800 1 EEST}
-    {3715362000 7200 0 EET}
-    {3734114400 10800 1 EEST}
-    {3747416400 7200 0 EET}
-    {3765564000 10800 1 EEST}
-    {3778866000 7200 0 EET}
-    {3797013600 10800 1 EEST}
-    {3810315600 7200 0 EET}
-    {3828463200 10800 1 EEST}
-    {3841765200 7200 0 EET}
-    {3859912800 10800 1 EEST}
-    {3873214800 7200 0 EET}
-    {3891362400 10800 1 EEST}
-    {3904664400 7200 0 EET}
-    {3923416800 10800 1 EEST}
-    {3936718800 7200 0 EET}
-    {3954866400 10800 1 EEST}
-    {3968168400 7200 0 EET}
-    {3986316000 10800 1 EEST}
-    {3999618000 7200 0 EET}
-    {4017765600 10800 1 EEST}
-    {4031067600 7200 0 EET}
-    {4049215200 10800 1 EEST}
-    {4062517200 7200 0 EET}
-    {4080664800 10800 1 EEST}
-    {4093966800 7200 0 EET}
 }
diff --git a/tests/oo.test b/tests/oo.test
index 60d0077..e8f770c 100644
--- a/tests/oo.test
+++ b/tests/oo.test
@@ -7,7 +7,7 @@
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
-package require -exact TclOO 0.6.2 ;# Must match value in generic/tclOO.h
+package require -exact TclOO 0.6.3 ;# Must match value in generic/tclOO.h
 package require tcltest 2
 if {"::tcltest" in [namespace children]} {
     namespace import -force ::tcltest::*
@@ -1524,7 +1524,7 @@ test oo-16.2 {OO: object introspection} -body {
 } -returnCodes 1 -result {NOTANOBJECT does not refer to an object}
 test oo-16.3 {OO: object introspection} -body {
     info object gorp oo::object
-} -returnCodes 1 -result {unknown or ambiguous subcommand "gorp": must be class, definition, filters, forward, isa, methods, methodtype, mixins, namespace, variables, or vars}
+} -returnCodes 1 -result {unknown or ambiguous subcommand "gorp": must be call, class, definition, filters, forward, isa, methods, methodtype, mixins, namespace, variables, or vars}
 test oo-16.4 {OO: object introspection} -setup {
     oo::class create meta { superclass oo::class }
     [meta create instance1] create instance2
@@ -1646,7 +1646,7 @@ test oo-17.3 {OO: class introspection} -setup {
 } -result {"foo" is not a class}
 test oo-17.4 {OO: class introspection} -body {
     info class gorp oo::object
-} -returnCodes 1 -result {unknown or ambiguous subcommand "gorp": must be constructor, definition, destructor, filters, forward, instances, methods, methodtype, mixins, subclasses, superclasses, or variables}
+} -returnCodes 1 -result {unknown or ambiguous subcommand "gorp": must be call, constructor, definition, destructor, filters, forward, instances, methods, methodtype, mixins, subclasses, superclasses, or variables}
 test oo-17.5 {OO: class introspection} -setup {
     oo::class create testClass
 } -body {
diff --git a/tests/ooNext2.test b/tests/ooNext2.test
new file mode 100644
index 0000000..fc0423f
--- /dev/null
+++ b/tests/ooNext2.test
@@ -0,0 +1,765 @@
+# This file contains a collection of tests for Tcl's built-in object system.
+# Sourcing this file into Tcl runs the tests and generates output for errors.
+# No output means no errors were found.
+#
+# Copyright (c) 2006-2008 Donal K. Fellows
+#
+# See the file "license.terms" for information on usage and redistribution of
+# this file, and for a DISCLAIMER OF ALL WARRANTIES.
+#
+# RCS: @(#) $Id: oo.test,v 1.59 2011/01/18 16:10:48 dkf Exp $
+
+package require -exact TclOO 0.6.3 ;# Must match value in configure.in
+if {[lsearch [namespace children] ::tcltest] == -1} {
+    package require tcltest 2
+    namespace import -force ::tcltest::*
+}
+
+testConstraint memory [llength [info commands memory]]
+if {[testConstraint memory]} {
+    proc getbytes {} {
+	set lines [split [memory info] \n]
+	return [lindex $lines 3 3]
+    }
+    proc leaktest {script {iterations 3}} {
+	set end [getbytes]
+	for {set i 0} {$i < $iterations} {incr i} {
+	    uplevel 1 $script
+	    set tmp $end
+	    set end [getbytes]
+	}
+	return [expr {$end - $tmp}]
+    }
+}
+
+test oo-nextto-1.1 {basic nextto functionality} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x args {
+	    lappend ::result ==A== $args
+	}
+    }
+    oo::class create B {
+	superclass A
+	method x args {
+	    lappend ::result ==B== $args
+	    nextto A B -> A {*}$args
+	}
+    }
+    oo::class create C {
+	superclass A
+	method x args {
+	    lappend ::result ==C== $args
+	    nextto A C -> A {*}$args
+	}
+    }
+    oo::class create D {
+	superclass B C
+	method x args {
+	    lappend ::result ==D== $args
+	    next foo
+	    nextto C bar
+	}
+    }
+    set ::result {}
+    [D new] x
+    return $::result
+} -cleanup {
+    root destroy
+} -result {==D== {} ==B== foo ==A== {B -> A foo} ==C== bar ==A== {C -> A bar}}
+test oo-nextto-1.2 {basic nextto functionality} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x args {
+	    lappend ::result ==A== $args
+	}
+    }
+    oo::class create B {
+	superclass A
+	method x args {
+	    lappend ::result ==B== $args
+	    nextto A B -> A {*}$args
+	}
+    }
+    oo::class create C {
+	superclass A
+	method x args {
+	    lappend ::result ==C== $args
+	    nextto A C -> A {*}$args
+	}
+    }
+    oo::class create D {
+	superclass B C
+	method x args {
+	    lappend ::result ==D== $args
+	    nextto B foo {*}$args
+	    nextto C bar {*}$args
+	}
+    }
+    set ::result {}
+    [D new] x 123
+    return $::result
+} -cleanup {
+    root destroy
+} -result {==D== 123 ==B== {foo 123} ==A== {B -> A foo 123} ==C== {bar 123} ==A== {C -> A bar 123}}
+test oo-nextto-1.3 {basic nextto functionality: constructors} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	variable result
+	constructor {a c} {
+	    lappend result ==A== a=$a,c=$c
+	}
+    }
+    oo::class create B {
+	superclass root
+	variable result
+	constructor {b} {
+	    lappend result ==B== b=$b
+	}
+    }
+    oo::class create C {
+	superclass A B
+	variable result
+	constructor {p q r} {
+	    lappend result ==C== p=$p,q=$q,r=$r
+	    # Route arguments to superclasses, in non-trival pattern
+	    nextto B $q
+	    nextto A $p $r
+	}
+	method result {} {return $result}
+    }
+    [C new x y z] result
+} -cleanup {
+    root destroy
+} -result {==C== p=x,q=y,r=z ==B== b=y ==A== a=x,c=z}
+test oo-nextto-1.4 {basic nextto functionality: destructors} -setup {
+    oo::class create root {destructor return}
+} -body {
+    oo::class create A {
+	superclass root
+	destructor {
+	    lappend ::result ==A==
+	    next
+	}
+    }
+    oo::class create B {
+	superclass root
+	destructor {
+	    lappend ::result ==B==
+	    next
+	}
+    }
+    oo::class create C {
+	superclass A B
+	destructor {
+	    lappend ::result ==C==
+	    lappend ::result |
+	    nextto B
+	    lappend ::result |
+	    nextto A
+	    lappend ::result |
+	    next
+	}
+    }
+    set ::result ""
+    [C new] destroy
+    return $::result
+} -cleanup {
+    root destroy
+} -result {==C== | ==B== | ==A== ==B== | ==A== ==B==}
+
+test oo-nextto-2.1 {errors in nextto} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x y {error $y}
+    }
+    oo::class create B {
+	superclass A
+	method x y {nextto A $y}
+    }
+    [B new] x boom
+} -cleanup {
+    root destroy
+} -result boom -returnCodes error
+test oo-nextto-2.2 {errors in nextto} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x y {error $y}
+    }
+    oo::class create B {
+	superclass root
+	method x y {nextto A $y}
+    }
+    [B new] x boom
+} -returnCodes error -cleanup {
+    root destroy
+} -result {method has no non-filter implementation by "A"}
+test oo-nextto-2.3 {errors in nextto} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x y {nextto $y}
+    }
+    oo::class create B {
+	superclass A
+	method x y {nextto A $y}
+    }
+    [B new] x B
+} -returnCodes error -cleanup {
+    root destroy
+} -result {method implementation by "B" not reachable from here}
+test oo-nextto-2.4 {errors in nextto} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x y {nextto $y}
+    }
+    oo::class create B {
+	superclass A
+	method x y {nextto}
+    }
+    [B new] x B
+} -returnCodes error -cleanup {
+    root destroy
+} -result {wrong # args: should be "nextto class ?arg...?"}
+test oo-nextto-2.5 {errors in nextto} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x y {nextto $y}
+    }
+    oo::class create B {
+	superclass A
+	method x y {nextto $y $y $y}
+    }
+    [B new] x A
+} -cleanup {
+    root destroy
+} -result {wrong # args: should be "nextto A y"} -returnCodes error
+test oo-nextto-2.6 {errors in nextto} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x y {nextto $y}
+    }
+    oo::class create B {
+	superclass A
+	method x y {nextto $y $y $y}
+    }
+    [B new] x [root create notAClass]
+} -cleanup {
+    root destroy
+} -result {"::notAClass" is not a class} -returnCodes error
+test oo-nextto-2.7 {errors in nextto} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x y {nextto $y}
+    }
+    oo::class create B {
+	superclass A
+	filter Y
+	method Y args {next {*}$args}
+    }
+    oo::class create C {
+	superclass B
+	method x y {nextto $y $y $y}
+    }
+    [C new] x B
+} -returnCodes error -cleanup {
+    root destroy
+} -result {method has no non-filter implementation by "B"}
+
+test oo-call-1.1 {object call introspection} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    A create y
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{method x ::A method}}
+test oo-call-1.2 {object call introspection} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+    }
+    B create y
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{method x ::B method} {method x ::A method}}
+test oo-call-1.3 {object call introspection} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    A create y
+    oo::objdefine y method x {} {}
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{method x object method} {method x ::A method}}
+test oo-call-1.4 {object object call introspection - unknown} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    A create y
+    info object call y z
+} -cleanup {
+    root destroy
+} -result {{unknown unknown ::oo::object {core method: "unknown"}}}
+test oo-call-1.5 {object call introspection - filters} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+	method y {} {}
+	filter y
+    }
+    A create y
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{filter y ::A method} {method x ::A method}}
+test oo-call-1.6 {object call introspection - filters} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+	method y {} {}
+	filter y
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+    }
+    B create y
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{filter y ::A method} {method x ::B method} {method x ::A method}}
+test oo-call-1.7 {object call introspection - filters} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+	method y {} {}
+	filter y
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+	method y {} {}
+    }
+    B create y
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{filter y ::B method} {filter y ::A method} {method x ::B method} {method x ::A method}}
+test oo-call-1.8 {object call introspection - filters} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+	method y {} {}
+	filter y
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+	method y {} {}
+	method z {} {}
+	filter z
+    }
+    B create y
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{filter z ::B method} {filter y ::B method} {filter y ::A method} {method x ::B method} {method x ::A method}}
+test oo-call-1.9 {object call introspection - filters} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+	method y {} {}
+	filter y
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+	method y {} {}
+	method z {} {}
+	filter z
+    }
+    B create y
+    info object call y y
+} -cleanup {
+    root destroy
+} -result {{filter z ::B method} {filter y ::B method} {filter y ::A method} {method y ::B method} {method y ::A method}}
+test oo-call-1.10 {object call introspection - filters + unknown} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method y {} {}
+	filter y
+    }
+    oo::class create ::B {
+	superclass A
+	method y {} {}
+	method unknown {} {}
+    }
+    B create y
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{filter y ::B method} {filter y ::A method} {unknown unknown ::B method} {unknown unknown ::oo::object {core method: "unknown"}}}
+test oo-call-1.11 {object call introspection - filters + unknown} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method y {} {}
+	filter y
+    }
+    A create y
+    oo::objdefine y method unknown {} {}
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{filter y ::A method} {unknown unknown object method} {unknown unknown ::oo::object {core method: "unknown"}}}
+test oo-call-1.12 {object call introspection - filters + unknown} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method y {} {}
+    }
+    A create y
+    oo::objdefine y {
+	method unknown {} {}
+	filter y
+    }
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{filter y ::A method} {unknown unknown object method} {unknown unknown ::oo::object {core method: "unknown"}}}
+test oo-call-1.13 {object call introspection - filters + unknown} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method y {} {}
+    }
+    A create y
+    oo::objdefine y {
+	method unknown {} {}
+	method x {} {}
+	filter y
+    }
+    info object call y x
+} -cleanup {
+    root destroy
+} -result {{filter y ::A method} {method x object method}}
+test oo-call-1.14 {object call introspection - errors} -body {
+    info object call
+} -returnCodes error -result {wrong # args: should be "info object call objName methodName"}
+test oo-call-1.15 {object call introspection - errors} -body {
+    info object call a
+} -returnCodes error -result {wrong # args: should be "info object call objName methodName"}
+test oo-call-1.16 {object call introspection - errors} -body {
+    info object call a b c
+} -returnCodes error -result {wrong # args: should be "info object call objName methodName"}
+test oo-call-1.17 {object call introspection - errors} -body {
+    info object call notanobject x
+} -returnCodes error -result {notanobject does not refer to an object}
+test oo-call-1.18 {object call introspection - memory leaks} -body {
+    leaktest {
+	info object call oo::object destroy
+    }
+} -constraints memory -result 0
+
+test oo-call-2.1 {class call introspection} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    info class call A x
+} -cleanup {
+    root destroy
+} -result {{method x ::A method}}
+test oo-call-2.2 {class call introspection} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+    }
+    list [info class call A x] [info class call B x]
+} -cleanup {
+    root destroy
+} -result {{{method x ::A method}} {{method x ::B method} {method x ::A method}}}
+test oo-call-2.3 {class call introspection} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+    }
+    oo::class create ::C {
+	superclass A
+	method x {} {}
+    }
+    oo::class create ::D {
+	superclass C B
+	method x {} {}
+    }
+    info class call D x
+} -cleanup {
+    root destroy
+} -result {{method x ::D method} {method x ::C method} {method x ::B method} {method x ::A method}}
+test oo-call-2.4 {class call introspection - mixin} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+    }
+    oo::class create ::C {
+	superclass A
+	method x {} {}
+    }
+    oo::class create ::D {
+	superclass C
+	mixin B
+	method x {} {}
+    }
+    info class call D x
+} -cleanup {
+    root destroy
+} -result {{method x ::B method} {method x ::D method} {method x ::C method} {method x ::A method}}
+test oo-call-2.5 {class call introspection - mixin + filter} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+	method y {} {}
+	filter y
+    }
+    oo::class create ::C {
+	superclass A
+	method x {} {}
+	method y {} {}
+    }
+    oo::class create ::D {
+	superclass C
+	mixin B
+	method x {} {}
+    }
+    info class call D x
+} -cleanup {
+    root destroy
+} -result {{filter y ::B method} {filter y ::C method} {method x ::B method} {method x ::D method} {method x ::C method} {method x ::A method}}
+test oo-call-2.6 {class call introspection - mixin + filter + unknown} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+	method unknown {} {}
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+	method y {} {}
+	filter y
+    }
+    oo::class create ::C {
+	superclass A
+	method x {} {}
+	method y {} {}
+    }
+    oo::class create ::D {
+	superclass C
+	mixin B
+	method x {} {}
+	method unknown {} {}
+    }
+    info class call D z
+} -cleanup {
+    root destroy
+} -result {{filter y ::B method} {filter y ::C method} {unknown unknown ::D method} {unknown unknown ::A method} {unknown unknown ::oo::object {core method: "unknown"}}}
+test oo-call-2.7 {class call introspection - mixin + filter + unknown} -setup {
+    oo::class create root
+} -body {
+    oo::class create ::A {
+	superclass root
+	method x {} {}
+    }
+    oo::class create ::B {
+	superclass A
+	method x {} {}
+	filter x
+    }
+    info class call B x
+} -cleanup {
+    root destroy
+} -result {{filter x ::B method} {filter x ::A method} {method x ::B method} {method x ::A method}}
+test oo-call-2.8 {class call introspection - errors} -body {
+    info class call
+} -returnCodes error -result {wrong # args: should be "info class call className methodName"}
+test oo-call-2.9 {class call introspection - errors} -body {
+    info class call a
+} -returnCodes error -result {wrong # args: should be "info class call className methodName"}
+test oo-call-2.10 {class call introspection - errors} -body {
+    info class call a b c
+} -returnCodes error -result {wrong # args: should be "info class call className methodName"}
+test oo-call-2.11 {class call introspection - errors} -body {
+    info class call notaclass x
+} -returnCodes error -result {notaclass does not refer to an object}
+test oo-call-2.11 {class call introspection - errors} -setup {
+    oo::class create root
+} -body {
+    root create notaclass
+    info class call notaclass x
+} -returnCodes error -cleanup {
+    root destroy
+} -result {"notaclass" is not a class}
+test oo-call-2.13 {class call introspection - memory leaks} -body {
+    leaktest {
+	info class call oo::class destroy
+    }
+} -constraints memory -result 0
+
+test oo-call-3.1 {current call introspection} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	method x {} {lappend ::result [self call]}
+    }
+    oo::class create B {
+	superclass A
+	method x {} {lappend ::result [self call];next}
+    }
+    B create y
+    oo::objdefine y method x {} {lappend ::result [self call];next}
+    set ::result {}
+    y x
+} -cleanup {
+    root destroy
+} -result {{{{method x object method} {method x ::B method} {method x ::A method}} 0} {{{method x object method} {method x ::B method} {method x ::A method}} 1} {{{method x object method} {method x ::B method} {method x ::A method}} 2}}
+test oo-call-3.2 {current call introspection} -setup {
+    oo::class create root
+} -constraints memory -body {
+    oo::class create A {
+	superclass root
+	method x {} {self call}
+    }
+    oo::class create B {
+	superclass A
+	method x {} {self call;next}
+    }
+    B create y
+    oo::objdefine y method x {} {self call;next}
+    leaktest {
+	y x
+    }
+} -cleanup {
+    root destroy
+} -result 0
+test oo-call-3.3 {current call introspection: in constructors} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	constructor {} {lappend ::result [self call]}
+    }
+    oo::class create B {
+	superclass A
+	constructor {} {lappend ::result [self call]; next}
+    }
+    set ::result {}
+    [B new] destroy
+    return $::result
+} -cleanup {
+    root destroy
+} -result {{{{method <constructor> ::B method} {method <constructor> ::A method}} 0} {{{method <constructor> ::B method} {method <constructor> ::A method}} 1}}
+test oo-call-3.4 {current call introspection: in destructors} -setup {
+    oo::class create root
+} -body {
+    oo::class create A {
+	superclass root
+	destructor {lappend ::result [self call]}
+    }
+    oo::class create B {
+	superclass A
+	destructor {lappend ::result [self call]; next}
+    }
+    set ::result {}
+    [B new] destroy
+    return $::result
+} -cleanup {
+    root destroy
+} -result {{{{method <destructor> ::B method} {method <destructor> ::A method}} 0} {{{method <destructor> ::B method} {method <destructor> ::A method}} 1}}
+
+cleanupTests
+return
+
+# Local Variables:
+# mode: tcl
+# End:
diff --git a/tests/socket.test b/tests/socket.test
index 09b34ad..83bad09 100644
--- a/tests/socket.test
+++ b/tests/socket.test
@@ -800,6 +800,24 @@ test socket_$af-6.1 {accept callback error} -constraints [list socket supported_
     interp bgerror {} $handler
 } -result {divide by zero}
 
+test socket_$af-6.2 {
+    readable fileevent on server socket
+} -setup {
+    set sock [socket -server dummy 0]
+} -body {
+    fileevent $sock readable dummy
+} -cleanup {
+    close $sock
+} -returnCodes 1 -result "channel is not readable"
+
+test socket_$af-6.3 {writable fileevent on server socket} -setup {
+    set sock [socket -server dummy 0]
+} -body {
+    fileevent $sock writable dummy
+} -cleanup {
+    close $sock
+} -returnCodes 1 -result "channel is not writable"
+
 test socket_$af-7.1 {testing socket specific options} -setup {
     file delete $path(script)
     set f [open $path(script) w]
@@ -1592,7 +1610,7 @@ test socket_$af-12.3 {testing inheritance of accepted sockets} -setup {
     # If the socket is still open after 5 seconds, the script1 process must
     # have inherited the accepted socket.
     set failed 0
-    after 5000 set failed 1
+    set after [after 5000 [list set failed 1]]
     proc getdata { file } {
 	# Read handler on the client socket.
 	global x
@@ -1619,6 +1637,7 @@ test socket_$af-12.3 {testing inheritance of accepted sockets} -setup {
     vwait x
     return $x
 } -cleanup {
+    after cancel $after
     catch {close $p}
 } -result {accepted socket was not inherited}
 
diff --git a/unix/Makefile.in b/unix/Makefile.in
index f00746d..2d7416b 100644
--- a/unix/Makefile.in
+++ b/unix/Makefile.in
@@ -834,8 +834,8 @@ install-libraries: libraries
 	    do \
 	    $(INSTALL_DATA) $$i "$(SCRIPT_INSTALL_DIR)"/opt0.4; \
 	    done;
-	@echo "Installing package msgcat 1.4.3 as a Tcl Module";
-	@$(INSTALL_DATA) $(TOP_DIR)/library/msgcat/msgcat.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/msgcat-1.4.3.tm;
+	@echo "Installing package msgcat 1.4.4 as a Tcl Module";
+	@$(INSTALL_DATA) $(TOP_DIR)/library/msgcat/msgcat.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/msgcat-1.4.4.tm;
 	@echo "Installing package tcltest 2.3.3 as a Tcl Module";
 	@$(INSTALL_DATA) $(TOP_DIR)/library/tcltest/tcltest.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/tcltest-2.3.3.tm;
 
diff --git a/unix/tclUnixSock.c b/unix/tclUnixSock.c
index 35728e1..cb72759 100644
--- a/unix/tclUnixSock.c
+++ b/unix/tclUnixSock.c
@@ -785,25 +785,16 @@ TcpWatchProc(
 				 * TCL_EXCEPTION. */
 {
     TcpState *statePtr = (TcpState *) instanceData;
+    TcpFdList *fds;
 
-    /*
-     * Make sure we don't mess with server sockets since they will never be
-     * readable or writable at the Tcl level. This keeps Tcl scripts from
-     * interfering with the -accept behavior.
-     */
-
-    if (!statePtr->acceptProc) {
-	TcpFdList *fds;
-
-	for (fds = statePtr->fds; fds != NULL; fds = fds->next) {
-	    if (mask) {
-		Tcl_CreateFileHandler(fds->fd, mask,
-			(Tcl_FileProc *) Tcl_NotifyChannel,
-			(ClientData) statePtr->channel);
-	    } else {
-		Tcl_DeleteFileHandler(fds->fd);
-	    }
-	}
+    for (fds = statePtr->fds; fds != NULL; fds = fds->next) {
+        if (mask) {
+            Tcl_CreateFileHandler(fds->fd, mask,
+                                  (Tcl_FileProc *) Tcl_NotifyChannel,
+                                  (ClientData) statePtr->channel);
+        } else {
+            Tcl_DeleteFileHandler(fds->fd);
+        }
     }
 }
 
diff --git a/unix/tclooConfig.sh b/unix/tclooConfig.sh
index 07fb45b..68de106 100644
--- a/unix/tclooConfig.sh
+++ b/unix/tclooConfig.sh
@@ -16,4 +16,4 @@ TCLOO_STUB_LIB_SPEC=""
 TCLOO_INCLUDE_SPEC=""
 TCLOO_PRIVATE_INCLUDE_SPEC=""
 TCLOO_CFLAGS=-DUSE_TCLOO_STUBS
-TCLOO_VERSION=0.6.2
+TCLOO_VERSION=0.6.3
diff --git a/win/Makefile.in b/win/Makefile.in
index a2d855d..cddb343 100644
--- a/win/Makefile.in
+++ b/win/Makefile.in
@@ -670,8 +670,8 @@ install-libraries: libraries install-tzdata install-msgs
 	    do \
 	    $(COPY) "$$j" "$(SCRIPT_INSTALL_DIR)/opt0.4"; \
 	    done;
-	@echo "Installing package msgcat 1.4.3 as a Tcl Module";
-	@$(COPY) $(ROOT_DIR)/library/msgcat/msgcat.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/msgcat-1.4.3.tm;
+	@echo "Installing package msgcat 1.4.4 as a Tcl Module";
+	@$(COPY) $(ROOT_DIR)/library/msgcat/msgcat.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/msgcat-1.4.4.tm;
 	@echo "Installing package tcltest 2.3.3 as a Tcl Module";
 	@$(COPY) $(ROOT_DIR)/library/tcltest/tcltest.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/tcltest-2.3.3.tm;
 	@echo "Installing package platform 1.0.9 as a Tcl Module";
diff --git a/win/configure b/win/configure
index 9a62942..180901c 100755
--- a/win/configure
+++ b/win/configure
@@ -4406,6 +4406,64 @@ echo "${ECHO_T}   Using 64-bit $MACHINE mode" >&6
 		echo "$as_me:$LINENO: result:    Using 64-bit $MACHINE mode" >&5
 echo "${ECHO_T}   Using 64-bit $MACHINE mode" >&6
 		;;
+	    *)
+		cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+			#ifdef _WIN64
+			#error 64-bit
+			#endif
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  tcl_win_64bit=no
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+tcl_win_64bit=yes
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+		if test "$tcl_win_64bit" = "yes" ; then
+			do64bit=amd64
+			MACHINE="AMD64"
+			echo "$as_me:$LINENO: result:    Using 64-bit $MACHINE mode" >&5
+echo "${ECHO_T}   Using 64-bit $MACHINE mode" >&6
+		fi
+		;;
 	esac
     else
 	if test "${SHARED_BUILD}" = "0" ; then
diff --git a/win/tcl.m4 b/win/tcl.m4
index 6e3f3f9..e57788e 100644
--- a/win/tcl.m4
+++ b/win/tcl.m4
@@ -589,6 +589,21 @@ file for information about building with Mingw.])
 		MACHINE="IA64"
 		AC_MSG_RESULT([   Using 64-bit $MACHINE mode])
 		;;
+	    *)
+		AC_TRY_COMPILE([
+			#ifdef _WIN64
+			#error 64-bit
+			#endif
+		], [],
+			tcl_win_64bit=no,
+			tcl_win_64bit=yes
+		)
+		if test "$tcl_win_64bit" = "yes" ; then
+			do64bit=amd64
+			MACHINE="AMD64"
+			AC_MSG_RESULT([   Using 64-bit $MACHINE mode])
+		fi
+		;;
 	esac
     else
 	if test "${SHARED_BUILD}" = "0" ; then
diff --git a/win/tclooConfig.sh b/win/tclooConfig.sh
index 07fb45b..68de106 100644
--- a/win/tclooConfig.sh
+++ b/win/tclooConfig.sh
@@ -16,4 +16,4 @@ TCLOO_STUB_LIB_SPEC=""
 TCLOO_INCLUDE_SPEC=""
 TCLOO_PRIVATE_INCLUDE_SPEC=""
 TCLOO_CFLAGS=-DUSE_TCLOO_STUBS
-TCLOO_VERSION=0.6.2
+TCLOO_VERSION=0.6.3