Method goto_first

cranelift/bforest/src/set.rs:280–282

Move this cursor to the first element.

(&mut self)

    /// Move this cursor to the first element.
    pub fn goto_first(&mut self) -> Option<K> {
        self.root.map(|root| self.path.first(root, self.pool).0)
    }

    /// Try to insert `elem` into the set and leave the cursor at the inserted element.
    ///