29 lines
709 B
Swift
29 lines
709 B
Swift
import Foundation
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@propertyWrapper
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struct Storage<T: Codable> {
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private let key: String
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private let defaultValue: T?
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init(_ key: String, defaultValue: T? = nil) {
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self.key = key
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self.defaultValue = defaultValue
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}
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var wrappedValue: T? {
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get {
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guard let data = UserDefaults.standard.object(forKey: key) as? Data else {
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return defaultValue
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}
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let value = try? JSONDecoder().decode(T.self, from: data)
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return value ?? defaultValue
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}
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set {
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let data = try? JSONEncoder().encode(newValue)
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UserDefaults.standard.set(data, forKey: key)
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}
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}
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}
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