Bug 435345 - Cannot accurately watch the 'length' property of arrays, r=shaver

2008-07-01 12:47:09 -07:00
parent c290f36e91
commit f412ce8864
3 changed files with 12 additions and 9 deletions
--- a/js/src/jsobj.cpp
+++ b/js/src/jsobj.cpp
@@ -1434,6 +1434,9 @@ obj_watch(JSContext *cx, uintN argc, jsval *vp)
    if (attrs & JSPROP_READONLY)
        return JS_TRUE;
    *vp = JSVAL_VOID;
+
+    if (OBJ_IS_DENSE_ARRAY(cx, obj) && !js_MakeArraySlow(cx, obj))
+        return JS_FALSE;
    return JS_SetWatchPoint(cx, obj, userid, obj_watch_handler, callable);
 }