Method insert

cranelift/bforest/src/map.rs:133–141

Insert `key, value` into the map and return the old value stored for `key`, if any.

(
        &mut self,
        key: K,
        value: V,
        forest: &mut MapForest<K, V>,
        comp: &C,
    )

    /// Insert `key, value` into the map and return the old value stored for `key`, if any.
    pub fn insert<C: Comparator<K>>(
        &mut self,
        key: K,
        value: V,
        forest: &mut MapForest<K, V>,
        comp: &C,
    ) -> Option<V> {
        self.cursor_mut(forest, comp).insert(key, value)
    }

    /// Like `insert` but returns an error on allocation failure.
    pub fn try_insert<C: Comparator<K>>(