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authorMartin Habovstiak <martin.habovstiak@gmail.com>2021-09-13 15:44:27 +0200
committerMartin Habovstiak <martin.habovstiak@gmail.com>2021-12-02 17:18:34 +0100
commit41e21aa1c27522c6b29c5b88e37b1f479f63e38c (patch)
tree3349d7ee63f707eed0a13a90b72261efc70b312c /compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp
parent18bb8c61a975fff6424cda831ace5b0404277145 (diff)
downloadrust-41e21aa1c27522c6b29c5b88e37b1f479f63e38c.tar.gz
rust-41e21aa1c27522c6b29c5b88e37b1f479f63e38c.zip
Implement write() method for Box<MaybeUninit<T>>
This adds method similar to `MaybeUninit::write` main difference being
it returns owned `Box`. This can be used to elide copy from stack
safely, however it's not currently tested that the optimization actually
occurs.

Analogous methods are not provided for `Rc` and `Arc` as those need to
handle the possibility of sharing. Some version of them may be added in
the future.

This was discussed in #63291 which this change extends.
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