Bag

Bag.swift

internal extension SequenceType {
    func ip_splitFilter(@noescape filter: (Generator.Element) throws -> Bool) rethrows -> (passed: [Generator.Element], failed: [Generator.Element]) {
        var passed: [Generator.Element] = []
        var failed: [Generator.Element] = []
        try forEach {
            if try filter($0) {
                passed.append($0)
            } else {
                failed.append($0)
            }
        }
        return (passed, failed)
    }
}

GlobalLoader.swift

****************** THIS IS SAVED FOR REASONS UNKNOWN TO YOU IF YOU'VE FOUND IT >> DO NOT USE IT *****************************


// TODO: Make Better -- Super sketch mc_getch right now
/**
 At some point, this will be replaced w/ the 'c' logo.  
 
 For now, the reason for it serves the purpose of being an
 easy to use indicator for loading
*/
import IP_UIKit_Wisdom

final class GlobalLoader: UIView {
    private let activityIndicator = UIActivityIndicatorView(activityIndicatorStyle: .WhiteLarge)
    
    internal static func show() {
        let new = GlobalLoader()
        guard let window = (UIApplication.sharedApplication()
            .delegate as? AppDelegate)?.window else { fatalError("NO WINDOW") }
        window.addSubview(new)
        window.constrainViewToAllEdges(new)
    }
    
    internal static func hide() {
        guard let window = (UIApplication.sharedApplication()
            .delegate as? AppDelegate)?.window else { fatalError("NO WINDOW") }
        
        window.subviews.filter { $0 is GlobalLoader } .forEach { $0.removeFromSuperview() }
    }
    
    // MARK: Initialization
    
    override func awakeFromNib() {
        super.awakeFromNib()
        setup()
    }
    
    private convenience init() {
        self.init(frame: CGRectZero)
    }
    
    private override init(frame: CGRect) {
        super.init(frame: frame)
        setup()
    }
    
    required init(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    // MARK: Setup
    
    private func setup() {
        backgroundColor = .cyanColor()
        activityIndicator.color = .blueColor()
        activityIndicator.tintColor = .redColor()
        activityIndicator.startAnimating()
        addSubview(activityIndicator)
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
        activityIndicator.center = bounds.ip_center
    }
}