CoreStore/Sources/Transformable.swift

//
//  Transformable.swift
//  CoreStore
//
//  Copyright © 2018 John Rommel Estropia
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in all
//  copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//  SOFTWARE.
//

import CoreData
import Foundation


// MARK: - DynamicObject

extension DynamicObject where Self: CoreStoreObject {
    
    /**
     The containing type for transformable properties. `Transformable` properties support types that conforms to `NSCoding & NSCopying`.
     ```
     class Animal: CoreStoreObject {
         let species = Value.Required<String>("species", initial: "")
         let nickname = Value.Optional<String>("nickname")
         let color = Transformable.Optional<UIColor>("color")
     }
     ```
     - Important: `Transformable` properties are required to be stored properties. Computed properties will be ignored, including `lazy` and `weak` properties.
     */
    public typealias Transformable = TransformableContainer<Self>
}


// MARK: - TransformableContainer

/**
 The containing type for transformable properties. Use the `DynamicObject.Transformable` typealias instead for shorter syntax.
 ```
 class Animal: CoreStoreObject {
     let species = Value.Required<String>("species", initial: "")
     let nickname = Value.Optional<String>("nickname")
     let color = Transformable.Optional<UIColor>("color")
 }
 ```
 */
public enum TransformableContainer<O: CoreStoreObject> {}