KiGi

public struct CustomHashable<T>: Hashable {
    
    public let value: T
    
    public typealias HashCalculator = (CustomHashable<T>, inout Hasher) -> Void
    public typealias EqualityCalculator = (CustomHashable<T>, CustomHashable<T>) -> Bool
    public typealias CacheTransformedData = (T) -> Any?
    
    private let hashCalculator: HashCalculator
    private let equalityCalculator: EqualityCalculator

KiGi

 static func buildImageForSize(size:CGSize) -> UIImage?
    {
        if size.height == 0 || size.width == 0 {
            return .None
        }
        
        var sigRect = CGRectZero
        sigRect.size = size
        
        // The following does NOT work

KiGi

   func checkIfFileExpired( fileURL : NSURL ) -> Bool {
        let fileManager = NSFileManager()
        if let fileManager.fileExistsAtPath(fileURL) {
            var error : NSError? = nil
            if let filePath = fileURL.path,
                let fileAttr = fileManager.attributesOfItemAtPath(filePath, error: &error),
                let creationDate = fileAttr[NSFileModificationDate] as? NSDate {
                return creationDate.isBefore(NSDate.oneDayAgo())
            } else {
                println("problem examining file attributes for \(fileURL): error was \(error)")

KiGi

import Foundation

// Make constants so the strings can be easily changed.
let fizz = "Fizz"
let buzz = "Buzz"

// Put this its own function just to make different implementations shorter and clearer.
func fizzbBuzzDeterminer( candidateNum : Int, isFizz: Bool, isBuzz : Bool ) -> String
{
    var toPrint :String