[GitHub] csantanapr commented on issue #2: Swift 4 support

[GitBox <gi...@apache.org>]

csantanapr commented on issue #2: Swift 4 support
URL: https://github.com/apache/incubator-openwhisk-runtime-swift/issues/2#issuecomment-342509355
 
 
   
   User can define Codable
   ```swift
   struct Meal: Codable {
       
       //MARK: Properties
       
       var name: String
       var photo: Data
       var rating: Int
       
       //MARK: Initialization
       
       init?(name: String, photo: Data, rating: Int) {
           
           // The name must not be empty
           guard !name.isEmpty else {
               return nil
           }
           
           // The rating must be between 0 and 5 inclusively
           guard (rating >= 0) && (rating <= 5) else {
               return nil
           }
           
           // Initialization should fail if there is no name or if the rating is negative.
           if name.isEmpty || rating < 0  {
               return nil
           }
           
           // Initialize stored properties.
           self.name = name
           self.photo = photo
           self.rating = rating
           
       }
   }
   ```
   
   Action
   ```swift
   func storeHandler(meal: Meal, completion: (Meal?, RequestError?) -> Void ) -> Void {
           mealStore[meal.name] = meal 
           completion(mealStore[meal.name], nil)
       }
   ```

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