Patch to get Crafting Modern Cocoa Apps WWDC session app (https://developer.apple.com/library/prerelease/content/samplecode/PhotoEditor/Introduction/Intro.html#//apple_ref/doc/uid/TP40017384) compiling without errors in Xcode 8.1.

crafting-modern-cocoa-apps-fix-for-xcode8.1-patch.diff

From 94e6ad1869622652b9752e410f3dc24a02bca0f0 Mon Sep 17 00:00:00 2001
From: Troy Gaul <tgaul@mac.com>
Date: Wed, 26 Oct 2016 16:37:43 -0500
Subject: [PATCH] Changes to get compiling with Xcode 8.1.

---
 Photo Editor/CanvasViewController.swift          | 2 +-
 Photo Editor/PhotoController.swift               | 2 +-
 Photo Editor/PhotoDocumentWindowController.swift | 4 ++--
 Photo Editor/SidebarViewController.swift         | 8 ++++----
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/Photo Editor/CanvasViewController.swift b/Photo Editor/CanvasViewController.swift
index ca34309..d692845 100644
--- a/Photo Editor/CanvasViewController.swift	
+++ b/Photo Editor/CanvasViewController.swift	
@@ -38,7 +38,7 @@ class CanvasViewController: NSViewController, PhotoControllerConsumer {
         if topTextFieldConstraint == nil {
             // Keep the text field aligned underneath the title/toolbar area via the contentLayoutGuide
             // The titleTextField has a y constraint that is set to be removed at build time in order to not conflict with this constraint.
-            if let contentAnchor = titleTextField.window?.contentLayoutGuide?.topAnchor {
+            if let contentAnchor = (titleTextField.window?.contentLayoutGuide as AnyObject?)?.topAnchor {
                 topTextFieldConstraint = titleTextField.topAnchor.constraint(equalTo: contentAnchor, constant: 2)
                 topTextFieldConstraint?.isActive = true
             }
diff --git a/Photo Editor/PhotoController.swift b/Photo Editor/PhotoController.swift
index 4752069..d02cbd6 100644
--- a/Photo Editor/PhotoController.swift	
+++ b/Photo Editor/PhotoController.swift	
@@ -29,7 +29,7 @@ class PhotoController: NSObject {
         subscribers.remove(subscriber)
     }
     
-    private func forEachSubscriber(_ work: @noescape (PhotoSubscriber) -> Void) {
+    private func forEachSubscriber(_ work: (PhotoSubscriber) -> Void) {
         for object in subscribers.objectEnumerator() {
             guard let subscriber = object as? PhotoSubscriber else { continue }
             work(subscriber)
diff --git a/Photo Editor/PhotoDocumentWindowController.swift b/Photo Editor/PhotoDocumentWindowController.swift
index de932bd..909646e 100644
--- a/Photo Editor/PhotoDocumentWindowController.swift	
+++ b/Photo Editor/PhotoDocumentWindowController.swift	
@@ -25,7 +25,7 @@ class PhotoDocumentWindowController: NSWindowController, NSWindowDelegate {
     
     @IBOutlet weak var modeSelectionControl: NSSegmentedControl!
     
-    private var splitViewController: PhotoSplitViewController! { return contentViewController as? PhotoSplitViewController }
+    fileprivate var splitViewController: PhotoSplitViewController! { return contentViewController as? PhotoSplitViewController }
     private var drawAccessoryViewController: NSTitlebarAccessoryViewController!
     private var effectsAccessoryViewController: EffectsAccessoryViewController!
     
@@ -254,7 +254,7 @@ extension PhotoDocumentWindowController: PhotoSubscriber {
     func photo(_ photo: Photo, didChangeImage image: NSImage?, from oldImage: NSImage?) {
         if let document = self.document {
             if let undoManager = document.undoManager {
-                undoManager?.registerUndoWithTarget(self) { targetType in
+                undoManager?.registerUndo(withTarget: self) { targetType in
                     targetType.photoController?.setPhotoImage(oldImage)
                 }
             }
diff --git a/Photo Editor/SidebarViewController.swift b/Photo Editor/SidebarViewController.swift
index 51192ed..b8041a2 100644
--- a/Photo Editor/SidebarViewController.swift	
+++ b/Photo Editor/SidebarViewController.swift	
@@ -15,8 +15,8 @@ class SidebarViewController: NSViewController, PhotoControllerConsumer {
     @IBOutlet weak var sidebarScrollView: NSScrollView!
 
     // An array of titles to show and icons (images)
-    private var tableContents: [ImageItem] = [ImageItem]()
-    private var filteredTableContents: [ImageItem] = [ImageItem]()
+    fileprivate var tableContents: [ImageItem] = [ImageItem]()
+    fileprivate var filteredTableContents: [ImageItem] = [ImageItem]()
     private var bookmarkData: Data?
     private var searchContainerViewHeight: CGFloat = 0.0
     private var appearanceObservationToken: NSObjectProtocol?
@@ -140,7 +140,7 @@ class SidebarViewController: NSViewController, PhotoControllerConsumer {
         }
     }
     
-    override func observeValue(forKeyPath keyPath: String?, of object: AnyObject?, change: [NSKeyValueChangeKey : AnyObject]?, context: UnsafeMutablePointer<Void>?) {
+    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
         precondition(keyPath! == "contentLayoutRect", "We are only observing the contentLayoutRect")
         updateScrollViewContentInsets()
     }
@@ -312,7 +312,7 @@ extension SidebarViewController: NSTableViewDelegate, NSTableViewDataSource {
     // Demonstrate drag flocking in a table
     func tableView(_ tableView: NSTableView, pasteboardWriterForRow row: Int) -> NSPasteboardWriting? {
         let imageItem = filteredTableContents[row]
-        return imageItem.url
+        return imageItem.url as NSURL
     }
     
     func tableViewSelectionDidChange(_ notification: Notification) {
-- 
2.6.4