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UserDefaultPropertyWrapper.swift
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UserDefaultPropertyWrapper.swift
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//
// UserDefaultPropertyWrapper.swift
// Multisig
//
// Created by Dmitry Bespalov on 05.08.20.
// Copyright © 2020 Gnosis Ltd. All rights reserved.
//
import Foundation
@propertyWrapper
struct UserDefault<T> {
var key: String
var wrappedValue: T? {
set { UserDefaults.standard.set(newValue, forKey: key) }
get { UserDefaults.standard.object(forKey: key) as? T }
}
}
@propertyWrapper
struct UserDefaultWithDefault<T> {
var key: String
var defaultValue: T
var wrappedValue: T {
set { UserDefaults.standard.set(newValue, forKey: key) }
get { UserDefaults.standard.object(forKey: key) as? T ?? defaultValue }
}
}
@propertyWrapper
struct EnumDefault<E: RawRepresentable> {
var key: String
var wrappedValue: E? {
get {
guard let raw = UserDefaults.standard.object(forKey: key) as? E.RawValue else {
return nil
}
return E.init(rawValue: raw)
}
set {
if let value = newValue {
UserDefaults.standard.set(value.rawValue, forKey: key)
} else {
UserDefaults.standard.removeObject(forKey: key)
}
}
}
}