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> As long as there are no POOF magicians, the GC can assume that it knows every reference!

creating pointers without provenance is safe, so the GC can’t assume that a program won’t have them also be sound. This always be an issue.

discuss

IshKebab|4 months ago

I wouldn't say always: https://doc.rust-lang.org/std/ptr/index.html#strict-provenan...

I don't know what the plan is but I wouldn't be surprised if there's a breaking change (maybe in an edition) to remove exposed provenance from Rust entirely.