diff options
Diffstat (limited to 'js/src/tests/ecma_5/extensions/watchpoint-deletes-JSPropertyOp-setter.js')
-rw-r--r-- | js/src/tests/ecma_5/extensions/watchpoint-deletes-JSPropertyOp-setter.js | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/js/src/tests/ecma_5/extensions/watchpoint-deletes-JSPropertyOp-setter.js b/js/src/tests/ecma_5/extensions/watchpoint-deletes-JSPropertyOp-setter.js deleted file mode 100644 index 85410bbd4..000000000 --- a/js/src/tests/ecma_5/extensions/watchpoint-deletes-JSPropertyOp-setter.js +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Any copyright is dedicated to the Public Domain. - * http://creativecommons.org/licenses/publicdomain/ - */ - -function make_watcher(name) { - return function (id, oldv, newv) { - print("watched " + name + "[0]"); - }; -} - -var o, p; -function f(flag) { - if (flag) { - o = arguments; - } else { - p = arguments; - o.watch(0, make_watcher('o')); - p.watch(0, make_watcher('p')); - - /* - * Previously, the watchpoint implementation actually substituted its magic setter - * functions for the setters of shared shapes, and then 1) carefully ignored calls - * to its magic setter from unrelated objects, and 2) avoided restoring the - * original setter until all watchpoints on that shape had been removed. - * - * However, when the watchpoint code began using JSObject::changeProperty and - * js_ChangeNativePropertyAttrs to change shapes' setters, the shape tree code - * became conscious of the presence of watchpoints, and shared shapes between - * objects only when their watchpoint nature coincided. Clearing the magic setter - * from one object's shape would not affect other objects, because the - * watchpointed and non-watchpointed shapes were distinct if they were shared. - * - * Thus, the first unwatch call must go ahead and fix p's shape, even though a - * watchpoint exists on the same shape in o. o's watchpoint's presence shouldn't - * cause 'unwatch' to leave p's magic setter in place. - */ - - /* DropWatchPointAndUnlock would see o's watchpoint, and not change p's property. */ - p.unwatch(0); - - /* DropWatchPointAndUnlock would fix o's property, but not p's; p's setter would be gone. */ - o.unwatch(0); - - /* This would fail to invoke the arguments object's setter. */ - p[0] = 4; - - /* And the formal parameter would not get updated. */ - assertEq(flag, 4); - } -} - -f(true); -f(false); - -reportCompare(true, true); |