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by slavapestov 41 days ago
FWIW both Swift and Rust have had value types and generics that abstract over unboxed values since the start.
1 comments

Not sure I would call them the same - not too familiar with Swift but for rust you probably mean types implementing the Copy trait?

But Java's value types are a higher level semantic feature, these objects may do a Copy or a Clone based on heuristics. So probably not the exact analogue but of course rust being a lower level language it can express where and when memory is allocated.