52
What are some mind blowing Rust tricks?
(programming.dev)
Welcome to the Rust community! This is a place to discuss about the Rust programming language.
Credits
Not exactly the same thing but this is still pretty funny. This is code that is technically 100% legal Rust but you should definitely never write such code ๐ .
This is excellent content
That makes complete sense. Ranges implement
fmt::Debug
,..
is a range, in particular the full range (all values)..=
isn't because the upper bound is missing but..=..
ranges from the beginning to the... full range. Which doesn't make sense semantically but you can debug print it so add a couple more nested calls and you get a punch card.I totally didn't need the Rust playground to figure that out.
What madness caused this
It's a test for the compiler which ensures that these legal yet extremely weird expressions continue to compile as the compiler is updated. So there is a purpose to the madness but it does still look pretty funny.