All files / core/storage MemoryStorage.ts

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/**
 * Copyright 2017 Google Inc.
 *
 * 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 { contains } from '@firebase/util';
 
/**
 * An in-memory storage implementation that matches the API of DOMStorageWrapper
 * (TODO: create interface for both to implement).
 *
 * @constructor
 */
export class MemoryStorage {
  private cache_: { [k: string]: any } = {};
 
  set(key: string, value: any | null) {
    if (value == null) {
      delete this.cache_[key];
    } else {
      this.cache_[key] = value;
    }
  }
 
  get(key: string): any {
    if (contains(this.cache_, key)) {
      return this.cache_[key];
    }
    return null;
  }
 
  remove(key: string) {
    delete this.cache_[key];
  }
 
  isInMemoryStorage = true;
}