AFAIK the current method for hacking in placement new is to use something like this: https://github.com/glandium/boxext https://github.com/glandium/boxext Some

AFAIK the current method for hacking in placement new is to use something like this: https://github.com/glandium/boxext https://github.com/glandium/boxext Some more context. There used to be a `box` keyword too. https://github.com/rust-lang/rust/issues/50047 https://github.com/rust-lang/rust/issues/50047