Rustで初学者がつまづいたところメモ

impl<T, E> Result<T, E> { /// ```should_panic /// let x: Result<u32, &str> = Err("emergency failure"); /// x.unwrap(); // panics with `emergency failure` /// ``` #[inline] #[track_caller] #[stable(feature = "rust1", since = "1.0.0")] pub fn unwrap(self) -> T where E: fmt::Debug, { match self { Ok(t) => t, Err(e) => unwrap_failed("called `Result::unwrap()` on an `Err` value", &e), } } prelude impor

[harumomo2006]

一番最初に困るのはゲームのrustと情報が混ざること