[3d96b7076e] Prevent crashes when destroying an object's class inside a method call.

1 files changed, 51 insertions, 0 deletions

diff --git a/tests/oo.test b/tests/oo.test
index c83e015..2112f10 100644
--- a/tests/oo.test
+++ b/tests/oo.test
@@ -638,6 +638,57 @@ test oo-3.9 {Bug 2944404: deleting the object in the destructor} -setup {
 } -cleanup {
     cls destroy
 } -result {in destructor}
+test oo-3.10 {Bug 3d96b7076e: killing the object's class in a method call} -setup {
+    oo::class create Super
+} -body {
+    # Only reliably failed in a memdebug build
+    oo::class create Cls {
+	superclass Super
+	method mthd {} {
+	    [self class] destroy
+	    return ok
+	}
+    }
+    [Cls new] mthd
+} -cleanup {
+    Super destroy
+} -result ok
+test oo-3.11 {Bug 3d96b7076e: killing the object's class in a method call} -setup {
+    oo::class create Super
+    oo::class create Sub {
+	superclass Super
+    }
+} -body {
+    # Only reliably failed in a memdebug build
+    oo::class create Cls {
+	superclass Super
+	method mthd {} {
+	    oo::objdefine [self] class Sub
+	    Cls destroy
+	    return ok
+	}
+    }
+    [Cls new] mthd
+} -cleanup {
+    Super destroy
+} -result ok
+test oo-3.12 {Bug 3d96b7076e: killing the object's class in a method call} -setup {
+    oo::class create Super
+} -body {
+    # Only reliably failed in a memdebug build
+    oo::class create Cls {
+	superclass Super
+	method mthd {} {
+	    [self class] destroy
+	    return ok
+	}
+    }
+    set o [Super new]
+    oo::objdefine $o mixin Cls
+    $o mthd
+} -cleanup {
+    Super destroy
+} -result ok
 
 test oo-4.1 {basic test of OO functionality: export} {
     set o [oo::object new]