Method or_map

prqlc/prqlc/src/utils/mod.rs:23–32

(self, b: Self, f: F)

impl<T> OrMap<T> for Option<T> {
    fn or_map<F>(self, b: Self, f: F) -> Self
    where
        F: FnOnce(T, T) -> T,
    {
        match (self, b) {
            (Some(a), Some(b)) => Some(f(a, b)),
            (a, None) => a,
            (None, b) => b,
        }
    }
}

pub trait Pluck<T> {