Method first

cranelift/entity/src/list.rs:327–333

Get the first element from the list.

(&self, pool: &ListPool<T>)

    /// Get the first element from the list.
    pub fn first(&self, pool: &ListPool<T>) -> Option<T> {
        if self.is_empty() {
            None
        } else {
            Some(pool.data[self.index as usize])
        }
    }

    /// Get the list as a mutable slice.
    pub fn as_mut_slice<'a>(&'a mut self, pool: &'a mut ListPool<T>) -> &'a mut [T] {