4 ms·

Not the code linked from the article; the goal of that code was to generate the scores of the guesses at the root of the search tree, so that I could hardcode t

• kibwen 5y ago
  Interesting, you appear to be hitting some kind of pathological case with the `vec!` macro. Apparently it doesn't like being used with a 15,000-line literal. :P Fortunately you're right, there's a different way to do this, which AFAICT doesn't suffer from the same pathology. I replaced this: pub struct Choice { pub word: String, pub avg_remaining: f64, } pub fn root_choices() -> Vec<Choice> { vec![ Choice { word: "roate".to_string(), avg_remaining: 60.42462203023758 }, with this: use std::borrow::Cow; #[derive(Clone)] pub struct Choice<'a> { pub word: Cow<'a, str>, pub avg_remaining: f64, } pub const ROOT_CHOICES: &[Choice] = &[ Choice { word: Cow::Borrowed("roate"), avg_remaining: 60.42462203023758 }, and it brought the time of `cargo clean && cargo build --release` down from 345 seconds to 13 seconds. I consider this a compiler bug, I'll file it if I can't find an existing issue.
  • espadrine 5y ago
    Oh, thanks! That is exactly what I wanted; a global constant makes more sense for this use-case.