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  • FizzyOrange@programming.dev
    8·
    1 day ago

    So glad they made the sane move and fixed std::env::home_dir(). The previous situation of having it deprecated due to fairly insignificant reasons, while recommending an abandoned crate instead was just silly.

  • Ephera@lemmy.mlEnglish
    9·
    2 days ago

    Honestly, kind of most excited about std::env::home_dir() being fixed/undeprecated. That’s the kind of thing that some languages would leave unfixed for eternity, until half the community recommends not using the stdlib even for basic uses.

  • Bogasse@lemmy.ml
    7·
    1 day ago

    The gen keyword is too much teasing, I know it’s not round the corner but I’m gonna explode 🥺

    • BB_C@programming.dev
      8·
      1 day ago

      In case the wording tripped anyone, generators (blocks and functions) have been available for a while as an unstable feature.

      This works (playground):

      #![feature(gen_blocks)]

gen fn gfn() -> i32 {
    for i in 1..=10 {
        yield i;
    }
}

fn gblock() -> impl Iterator<Item = i32> {
    gen {
        for i in 1..=10 {
            yield i;
        }
    }
}

fn main() {
    for i in gfn() {
        println!("{i} from gfn()");
    }
    for i in gblock() {
        println!("{i} from gblock()");
    }
}

      Note that the block-in-fn version works better at this moment (from a developer’s PoV) because rust-analyzer currently treats gfn() as an i32 value. But the block-in-fn pattern works perfectly already.