/**
* Copyright 2017-2020 Plexus Interop Deutsche Bank AG
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { ObjectUtils } from '../js/ObjectUtils';
export class ExtendedMap<K, V> extends Map<K, V> {
private constructor() {
super();
}
public static create<K, V>(): ExtendedMap<K, V> {
const instance = ObjectUtils.setPrototypeOf(new Map<K, V>(), ExtendedMap.prototype);
return instance as ExtendedMap<K, V>;
}
public valuesArray(): V[] {
const res: V[] = [];
this.forEach(v => res.push(v));
return res;
}
public getOrAdd(key: K, producer: () => V): V {
let res = this.get(key);
if (res === undefined) {
res = producer();
this.set(key, res);
}
return res;
}
} |