* generic/tclVar.c (TclArraySet): Re-fetch pointers for the list

        * tests/var.test (var-17.1):    argument of [array set] each time
        through the loop as defense against possible shimmer issues.
        [Bug 1669489].

1 files changed, 13 insertions, 1 deletions

diff --git a/tests/var.test b/tests/var.test
index 64f52707..9f163e8 100644
--- a/tests/var.test
+++ b/tests/var.test
@@ -14,7 +14,7 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: var.test,v 1.20.2.3 2004/09/30 22:45:17 dgp Exp $
+# RCS: @(#) $Id: var.test,v 1.20.2.4 2007/03/13 15:59:53 dgp Exp $
 #
 
 if {[lsearch [namespace children] ::tcltest] == -1} {
@@ -701,6 +701,18 @@ test var-16.1 {CallVarTraces: save/restore interp error state: 1038021} {
     set errorInfo
 } bar
 
+test var-17.1 {TclArraySet [Bug 1669489]} -setup {
+    unset -nocomplain ::a
+} -body {
+    namespace eval :: {
+        set elements {1 2 3 4}
+        trace add variable a write {string length $elements ;#}
+        array set a $elements
+    }
+} -cleanup {
+    unset -nocomplain ::a ::elements
+} -result {}
+
 catch {namespace delete ns}
 catch {unset arr}
 catch {unset v}