this post was submitted on 10 Feb 2026
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Programmer Humor

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[–] Flipper@feddit.org 27 points 16 hours ago (3 children)

Deref is for smart pointers and not for inheritance.

[–] calcopiritus@lemmy.world 2 points 7 hours ago

The windows crate is full of Deref. Because the windows API is full of inheritance.

It may not be what the trait was thought of for, but I'm glad we have it to interface with APIs that have actual inheritance.

[–] Phoenix3875@lemmy.world 16 points 15 hours ago

Let me introduce you to this horror story: Deref Polymorphism https://rust-unofficial.github.io/patterns/anti_patterns/deref.html

[–] jenesaisquoi@feddit.org 2 points 16 hours ago

Also sometimes newtypes