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209

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1
+1  Q: 

Flex 4 - What makes a GC root?

What are the rules for something to be a GC root in Flash?

I'm using the Flash Builder 4 profiler, and I'm finding odd things are labeled as GC roots in the object reference details (e.g., an Image control that is no longer in the display list, nor static).

A: 

Well GC means "Garbage Collection" so I'd assume all objects that are eligible for garbage collection would get that label.

Mikepote  2010-04-07 09:02:20
The "root" is one of the few privileged objects that the garbage collector starts with. I'm asking if there are additional ways my Image, say, could get to be so privileged.
Michael Brewer-Davis  2010-04-07 16:26:22

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