Fix typo in 3.8 Subtyping and Variance (#395)

Co-authored-by: Mason Loyet <mloyet@andrew.cmu.edu>
pull/410/head
masloyet 2 years ago committed by GitHub
parent 1f3e4cd4fd
commit b5f7500fc4
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@ -335,7 +335,7 @@ we inherited invariance as soon as we put our reference inside an `&mut T`.
As it turns out, the argument for why it's ok for Box (and Vec, Hashmap, etc.) to As it turns out, the argument for why it's ok for Box (and Vec, Hashmap, etc.) to
be covariant is pretty similar to the argument for why it's ok for be covariant is pretty similar to the argument for why it's ok for
lifetimes to be covariant: as soon as you try to stuff them in something like a references to be covariant: as soon as you try to stuff them in something like a
mutable reference, they inherit invariance and you're prevented from doing anything mutable reference, they inherit invariance and you're prevented from doing anything
bad. bad.

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