@Reloadable.swift

//
//  @Reloadable.swift
//  NearbyWeather
//
//  Created by Erik Maximilian Martens on 06.04.22.
//  Copyright © 2022 Erik Maximilian Martens. All rights reserved.
//  Based on: https://stackoverflow.com/questions/25072597/re-initialize-a-lazy-initialized-variable-in-swift
//

import Foundation

@propertyWrapper class Reloadable<T: AnyObject> {
  
  private let initializer:  (() -> T)
  private var _wrappedValue: T?
  var wrappedValue: T {
    if _wrappedValue == nil {
      _wrappedValue = initializer()
    }
    return _wrappedValue!
  }
  
  init(initializer: @escaping (() -> T)) {
    self.initializer = initializer
  }
  
  func nuke() {
    _wrappedValue = nil
  }
}