eonist

private func createDisplayLink() {
  CVDisplayLinkCreateWithActiveCGDisplays(&displayLink)
  guard let displayLink = displayLink else {
    return
  }
  
  let callback: CVDisplayLinkOutputCallback = { (_, _, _, _, _, userInfo) -> CVReturn in
    let myView = Unmanaged<MyView>.fromOpaque(COpaquePointer(userInfo)).takeUnretainedValue()
    dispatch_async(dispatch_get_main_queue()) {
      myView.update()

eonist

import UIKit
import Security

class Keychain {
    
    class func save(key: String, data: NSData) -> Bool {
        let query = [
            kSecClass as String       : kSecClassGenericPassword as String,
            kSecAttrAccount as String : key,
            kSecValueData as String   : data ]

eonist

let plainString = "foo"

// Encoding

guard let plainData = (plainString as NSString).dataUsingEncoding(NSUTF8StringEncoding) else {
    fatalError()
}

let base64String = plainData.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))
print(base64String) // Zm9v

eonist

import AppKit

public extension NSBezierPath {
    
    public convenience init(path: CGPath) {
        self.init()
        
        let pathPtr = UnsafeMutablePointer<NSBezierPath>.alloc(1)
        pathPtr.initialize(self)
        

eonist

import Foundation

/// Given pointer to first element of a C array, invoke a function for each element
func enumerateCArray<T>(array: UnsafePointer<T>, count: UInt32, f: (UInt32, T) -> ()) {
    var ptr = array
    for i in 0..<count {
        f(i, ptr.memory)
        ptr = ptr.successor()
    }
}

eonist

//
//  Range+Extensions.swift
//  IntensityAttributingKit
//
//  Created by Evan Mckee on 3/23/16.
//  Copyright © 2016 McKeeMaKer. All rights reserved.
//

import Foundation

eonist

import Cocoa
import XCPlayground
import PlaygroundSupport

class TouchView: NSView {
    var (path, currentPath) = (NSBezierPath(), NSBezierPath())
    
    override func draw(_ dirtyRect: NSRect) {
        guard let contextPtr = NSGraphicsContext.current()?.graphicsPort else {return}
        let context = unsafeBitCast(contextPtr, to: CGContext.self)

eonist

import AppKit
import XCPlayground
import Cocoa
import PlaygroundSupport

extension NSLayoutConstraint {
    convenience init(view item: NSView, to toItem: NSView, attribute: NSLayoutAttribute, constant c: CGFloat = 0) {
        self.init(item: item, attribute: attribute,
                  relatedBy: .equal,
                  toItem: toItem, attribute: attribute,

eonist

protocol AnyArray{}/*<--Neat trick to assert if a value is an Array, use-full in reflection and when the value is Any but really an array*/
extension Array:AnyArray{}//Maybe rename to ArrayType
func recFlatMap<T>(_ arr:[AnyObject]) -> [T]{
    var result:[T] = []
    Swift.print("arr.count: " + "\(arr.count)")
    arr.forEach{
        if($0 is AnyArray){
            let a:[AnyObject] = $0 as! [AnyObject]
            result += recFlatMap(a)
        }else{

eonist

extension URLRequest {
    
    /// The cURL representation of the URLRequest, useful for debugging and executing requests outside of the app.
    var cURLCommand: String {
        
        var command = "curl"
        
        if let httpMethod = httpMethod {
            command.append(commandLineArgument: "-X \(httpMethod)")
        }