What a Rust closure turns into
https://younes.io/blog/2026/10/what-a-rust-closure-turns-into/
younes.ioWhat a Rust closure turns intoA tiny Rust program read through the design documents, written between 2014 and 2016, that decided what its closure is, how a call works, which type its argument gets, what happens on overflow and when it can become a function pointer.
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