| 1 | /// Polyfill for `Option::unwrap()` as a const fn; feature `const_option`. |
|---|---|
| 2 | /// https://github.com/rust-lang/rust/issues/67441. |
| 3 | /// TODO(MSRV): Replace this with `x.unwrap()`. |
| 4 | /// |
| 5 | /// `T: Copy` avoids "constant functions cannot evaluate destructors." |
| 6 | pub const fn unwrap_const<T>(x: Option<T>) -> T |
| 7 | where |
| 8 | T: Copy, |
| 9 | { |
| 10 | if let Some(x: T) = x { |
| 11 | x |
| 12 | } else { |
| 13 | panic!("unwrap_const on `None`"); |
| 14 | } |
| 15 | } |
| 16 |