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-rw-r--r--generic/tclOO.c4
-rw-r--r--tests/oo.test10
2 files changed, 13 insertions, 1 deletions
diff --git a/generic/tclOO.c b/generic/tclOO.c
index ace47fe..77e668b 100644
--- a/generic/tclOO.c
+++ b/generic/tclOO.c
@@ -1287,7 +1287,9 @@ TclOORemoveFromInstances(
removeInstance:
if (Deleted(clsPtr->thisPtr)) {
- DelRef(clsPtr->instances.list[i]);
+ if (!IsRootClass(clsPtr)) {
+ DelRef(clsPtr->instances.list[i]);
+ }
clsPtr->instances.list[i] = NULL;
} else {
clsPtr->instances.num--;
diff --git a/tests/oo.test b/tests/oo.test
index 8c515da..2c189ca 100644
--- a/tests/oo.test
+++ b/tests/oo.test
@@ -271,6 +271,16 @@ test oo-1.18.1 {Bug 75b8433707: memory leak in oo-1.18} -setup {
} -cleanup {
rename test-oo-1.18 {}
} -result 0
+test oo-1.18.2 {Bug 21c144f0f5} -setup {
+ interp create slave
+} -body {
+ slave eval {
+ oo::define [oo::class create foo] superclass oo::class
+ oo::class destroy
+ }
+} -cleanup {
+ interp delete slave
+}
test oo-1.19 {basic test of OO functionality: teardown order} -body {
oo::object create o
namespace delete [info object namespace o]