Changeset 51624 in webkit for trunk/JavaScriptCore/interpreter

Timestamp:

Dec 2, 2009, 10:25:58 PM (16 years ago)

Author:

[email protected]

Message:

Add zombies to JSC
​https://bugs.webkit.org/show_bug.cgi?id=32103

Reviewed by Gavin Barraclough.

Add a compile time flag to make the JSC collector replace "unreachable"
objects with zombie objects. The zombie object is a JSCell subclass that
ASSERTs on any attempt to use the JSCell methods. In addition there are
a number of additional assertions in bottleneck code to catch zombie usage
as quickly as possible.

Grrr. Argh. Brains.

File:

• trunk/JavaScriptCore/interpreter/Register.h (modified) (1 diff)

trunk/JavaScriptCore/interpreter/Register.h

@@ -105 +105 @@
     ALWAYS_INLINE Register::Register(JSValue v)
     {
+#if ENABLE(JSC_ZOMBIES)
+        ASSERT(!v.isZombie());
+#endif
         u.value = JSValue::encode(v);
     }