Method pluck

prqlc/prqlc/src/utils/mod.rs:42–58

(&mut self, f: F)

impl<T> Pluck<T> for Vec<T> {
    fn pluck<R, F>(&mut self, f: F) -> Vec<R>
    where
        F: Fn(T) -> Result<R, T>,
    {
        let mut matched = Vec::new();
        let mut not_matched = Vec::new();

        for transform in self.drain(..) {
            match f(transform) {
                Ok(t) => matched.push(t),
                Err(transform) => not_matched.push(transform),
            }
        }

        self.extend(not_matched);
        matched
    }
}

/// Breaks up a [Vec] into two parts at the position of first matching element.