To answer my own question, I wrote some tests:
https://github.com/compilets/compilets/commit/d69722fb36260caa278843311cb043f5fe8a90d7
It seems that pointers stored in containers can be retained.
(It would be great if someone can verify this though.)
On Thursday, August 8, 2024 at 9:11:33 AM UTC+9 Cheng wrote:
> Cppgc does stack scanning so objects pointed by raw pointers on stack are
> not garbage collected:
>
> Object* ptr = MakeGarbageCollected<Object>(); // retained.
>
> But what if I put the pointer in a variant?
>
> std::variant<Object*, std::monostate> ptr =
> MakeGarbageCollected<Object>(); // retain?
>
> Or even in a vector?
>
> std::vector<Object*> ptrs = { MakeGarbageCollected<Object>() }; // retain?
>
> Will the object still be retained by the container of pointer on stack?
>
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