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   Sergey on FunctionalScript (functionalscript@techhub.social)'s status on Monday, 01-Jan-2024 14:42:37 JST Sergey on FunctionalScript

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   • Davy :ferris:

   @davy thank you for nice post about HRTB. I didn't know about it before. To be honest, I'm also having trouble to understand `Fn`, `FnOnce`, and `FnMut`, so I prefer to use custom traits like `MyFn` to understand what's going on: https://github.com/sergey-shandar/public/blob/main/hrtb/src/main.rs#L32

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     Davy :ferris: (davy@hachyderm.io)'s status on Monday, 01-Jan-2024 14:42:38 JST Davy :ferris:

     While playing with Serde's deserializer lifetimes in some project, this is the very first time I'm using a Higher-Rank Trait Bound (HRTB). Somehow it makes sense but at first glance the syntax is utterly confusing 🙈 .

     https://doc.rust-lang.org/nomicon/hrtb.html

     #rust #rustlang