INNER CODE UNIT · Dart

RegistryMap

foxsofter/flutter_thrio · lib/src/collection/registry_map.dart:24

class RegistryMap<K, V> {
  final Map<K, V> _maps = {};

  VoidCallback registry(K key, V value) {
    assert(key != null, 'key must not be null.');
    assert(value != null, 'value must not be null.');

    _maps[key] = value;
    return () {
      _maps.remove(key);
    };
  }

  VoidCallback registryAll(Map<K, V> values) {
    assert(values.isNotEmpty, 'values must not be null or empty.');

    _maps.addAll(values);
    return () {

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