set method

void set(
  1. K key,
  2. V value
)

Associates key with value; evicts oldest entry if at capacity.

Implementation

void set(K key, V value) {
  if (_ttl != null) _expiresAt[key] = DateTime.now().add(_ttl);
  if (_map.containsKey(key)) {
    _order.remove(key);
  } else if (_order.length >= _maxSize) {
    final K evict = _order.removeAt(0);
    _map.remove(evict);
    _expiresAt.remove(evict);
  }
  _map[key] = value;
  _order.add(key);
}