Swift formatted code for v5

Bond-App/AppDelegate.swift

@@ -6,20 +6,18 @@
 //  Copyright © 2016 Swift Bond. All rights reserved.
 //
 
-import UIKit
 import Bond
 import ReactiveKit
+import UIKit
 
 @UIApplicationMain
 class AppDelegate: UIResponder, UIApplicationDelegate {
-
     var window: UIWindow?
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+    func application(_: UIApplication, didFinishLaunchingWithOptions _: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         window = UIWindow(frame: UIScreen.main.bounds)
         window?.rootViewController = UIViewController()
         window?.makeKeyAndVisible()
         return true
     }
 }
-

Extensions/Bond+Realm.swift

@@ -28,44 +28,42 @@ import RealmSwift
 
 /*
 
-// Get the default Realm
-let realm = try! Realm()
+ // Get the default Realm
+ let realm = try! Realm()
 
-// Convert realm results into a changeset signal
-let puppies = realm.objects(Dog.self).toChangesetSignal()
+ // Convert realm results into a changeset signal
+ let puppies = realm.objects(Dog.self).toChangesetSignal()
 
-// Changeset signals can then be bound to table or collection views
-puppies.suppressError(logging: true).bind(to: tableView, cellType: UITableViewCell.self) { (cell, dog) in
-    cell.textLabel?.text = dog.name
-}
+ // Changeset signals can then be bound to table or collection views
+ puppies.suppressError(logging: true).bind(to: tableView, cellType: UITableViewCell.self) { (cell, dog) in
+ cell.textLabel?.text = dog.name
+ }
 
-// Adding something to the results will cause the table view to insert the respective row
-DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
-    try! realm.write {
-        realm.add(myDog)
-    }
-}
+ // Adding something to the results will cause the table view to insert the respective row
+ DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
+ try! realm.write {
+     realm.add(myDog)
+ }
+ }
 
-*/
+ */
 
 public extension RealmCollectionChange where CollectionType: Swift.Collection, CollectionType.Index == Int {
-
-    public func toOrderedCollectionChangeset() throws -> OrderedCollectionChangeset<CollectionType> {
+    func toOrderedCollectionChangeset() throws -> OrderedCollectionChangeset<CollectionType> {
         switch self {
-        case .initial(let collection):
+        case let .initial(collection):
             return OrderedCollectionChangeset(collection: collection, diff: OrderedCollectionDiff())
-        case .update(let collection, let deletions, let insertions, let modifications):
+        case let .update(collection, deletions, insertions, modifications):
             let diff = OrderedCollectionDiff(inserts: insertions, deletes: deletions, updates: modifications, moves: [])
             return OrderedCollectionChangeset(collection: collection, diff: diff)
-        case .error(let error):
+        case let .error(error):
             throw error
         }
     }
 }
 
 public extension Results {
-
-    public func toChangesetSignal() -> Signal<OrderedCollectionChangeset<Results<Element>>, NSError> {
+    func toChangesetSignal() -> Signal<OrderedCollectionChangeset<Results<Element>>, NSError> {
         return Signal { observer in
             let token = self.observe { change in
                 do {
@@ -82,16 +80,15 @@ public extension Results {
 }
 
 public extension Results: QueryableSectionedDataSourceProtocol {
-
-    public var numberOfSections: Int {
+    var numberOfSections: Int {
         return 1
     }
 
-    public func numberOfItems(inSection section: Int) -> Int {
+    func numberOfItems(inSection _: Int) -> Int {
         return count
     }
 
-    public func item(at indexPath: IndexPath) -> Element {
+    func item(at indexPath: IndexPath) -> Element {
         return self[indexPath.row]
     }
 }

Playground-iOS.playground/Pages/Key Value Observing.xcplaygroundpage/Contents.swift

@@ -1,12 +1,12 @@
 //: [Previous](@previous)
 
-///: Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
-///: targets with any iOS Simulator as a destination.
+/// : Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
+/// : targets with any iOS Simulator as a destination.
 
-import UIKit
 import Bond
-import ReactiveKit
 import PlaygroundSupport
+import ReactiveKit
+import UIKit
 
 class Contact: NSObject {
     @objc dynamic var name: String? = "n/a"

Playground-iOS.playground/Pages/Observable Collections.xcplaygroundpage/Contents.swift

@@ -1,21 +1,21 @@
 //: Playground - noun: a place where people can play
 
-///: Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
-///: targets with any iOS Simulator as a destination.
+/// : Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
+/// : targets with any iOS Simulator as a destination.
 
 import Bond
-import ReactiveKit
 import PlaygroundSupport
+import ReactiveKit
 
 // Array
 
 let a = MutableObservableArray([1, 2, 3])
 
-a.observeNext { (cs) in
+a.observeNext { cs in
     print(cs.diff, cs.patch)
 }
 
-a.batchUpdate { (a) in
+a.batchUpdate { a in
     a.append(1)
     a.append(2)
 }
@@ -26,7 +26,7 @@ let array2D = MutableObservableArray2D(Array2D<String, String>(sectionsWithItems
     ("Cities", ["Paris", "Berlin"])
 ]))
 
-array2D.observeNext { (cs) in
+array2D.observeNext { cs in
     print(cs.collection, cs.diff, cs.patch)
 }
 
@@ -39,7 +39,7 @@ array2D.appendItem("France", toSectionAt: 1)
 
 let s = MutableObservableSet(Set([1, 4, 3]))
 
-s.sortedCollection().mapCollection { $0 * 2 }.filterCollection { $0 > 2 }.observeNext { (changeset) in
+s.sortedCollection().mapCollection { $0 * 2 }.filterCollection { $0 > 2 }.observeNext { changeset in
     print(changeset.collection, changeset.diff, changeset.patch)
 }
 
@@ -49,7 +49,7 @@ s.insert(5)
 
 let dictionary = MutableObservableDictionary(["A": 1])
 
-dictionary.sortedCollection(by: { $0.key < $1.key }).mapCollection({ "\($0.key): \($0.value)"}).observeNext { (changeset) in
+dictionary.sortedCollection(by: { $0.key < $1.key }).mapCollection { "\($0.key): \($0.value)" }.observeNext { changeset in
     print(changeset.collection, changeset.diff, changeset.patch)
 }
 
@@ -59,7 +59,7 @@ dictionary["B"] = 2
 
 let data = MutableObservableCollection(Data([0x0A, 0x0B]))
 
-data.observeNext { (changeset) in
+data.observeNext { changeset in
     print(changeset.collection, changeset.diff, changeset.patch)
 }
 
@@ -75,20 +75,20 @@ var t = TreeArray<String>([
         TreeNode("Child 002", [
             TreeNode("Child 0020"),
             TreeNode("Child 0021")
-            ])
-        ]),
+        ])
+    ]),
     TreeNode("Child 01")
-    ])
+])
 
 let ot = MutableObservableTree(t)
 
-ot.observeNext { (cs) in
+ot.observeNext { cs in
     print(cs.collection, cs.diff, cs.patch)
 }
 
 ot.insert(TreeNode("New"), at: [0, 0])
 
-ot.batchUpdate { (ot) in
+ot.batchUpdate { ot in
     ot.remove(at: [0, 0])
     ot.remove(at: [0, 2, 1])
 }

Playground-iOS.playground/Pages/Trees.xcplaygroundpage/Contents.swift

@@ -1,11 +1,11 @@
 //: [Previous](@previous)
 
-///: Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
-///: targets with any iOS Simulator as a destination.
+/// : Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
+/// : targets with any iOS Simulator as a destination.
 
+import Bond
 import Foundation
 import UIKit
-import Bond
 
 // Tree node is a tree with a single root
 
@@ -48,7 +48,6 @@ print(t.depthFirst.randomElement()!)
 // Custom trees
 
 extension UIView: TreeProtocol {
-
     public var children: [UIView] {
         return subviews
     }
@@ -61,5 +60,4 @@ print(v.breadthFirst.map { type(of: $0) })
 
 print(v[childAt: [0, 0]])
 
-
 //: [Next](@next)

Playground-iOS.playground/Pages/UICollectionView+ObservableArray2D.xcplaygroundpage/Contents.swift

@@ -1,16 +1,15 @@
 //: [Previous](@previous)
 
-///: Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
-///: targets with any iOS Simulator as a destination.
+/// : Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
+/// : targets with any iOS Simulator as a destination.
 
+import Bond
 import Foundation
 import PlaygroundSupport
-import UIKit
-import Bond
 import ReactiveKit
+import UIKit
 
 class Cell: UICollectionViewCell {
-
     let titleLabel = UILabel()
 
     override init(frame: CGRect) {
@@ -20,7 +19,7 @@ class Cell: UICollectionViewCell {
         contentView.backgroundColor = .white
     }
 
-    required init?(coder aDecoder: NSCoder) {
+    required init?(coder _: NSCoder) {
         fatalError("init(coder:) has not been implemented")
     }
 
@@ -31,13 +30,12 @@ class Cell: UICollectionViewCell {
 }
 
 class SectionHeader: UICollectionReusableView {
-
     override init(frame: CGRect) {
         super.init(frame: frame)
         backgroundColor = .red
     }
 
-    required init?(coder aDecoder: NSCoder) {
+    required init?(coder _: NSCoder) {
         fatalError("init(coder:) has not been implemented")
     }
 }
@@ -59,7 +57,6 @@ PlaygroundPage.current.needsIndefiniteExecution = true
 
 // Using custom binder to provide table view header titles
 class CustomBinder<Changeset: SectionedDataSourceChangeset>: CollectionViewBinderDataSource<Changeset>, UICollectionViewDelegateFlowLayout where Changeset.Collection == Array2D<String, Int> {
-
     override var collectionView: UICollectionView? {
         didSet {
             collectionView?.delegate = self
@@ -68,7 +65,7 @@ class CustomBinder<Changeset: SectionedDataSourceChangeset>: CollectionViewBinde
 
     // Due to a bug in Swift related to generic subclases, we have to specify ObjC delegate method name
     // if it's different than Swift name (https://bugs.swift.org/browse/SR-2817).
-    @objc (collectionView:viewForSupplementaryElementOfKind:atIndexPath:)
+    @objc(collectionView:viewForSupplementaryElementOfKind:atIndexPath:)
     func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
         switch kind {
         case UICollectionView.elementKindSectionHeader:
@@ -79,7 +76,7 @@ class CustomBinder<Changeset: SectionedDataSourceChangeset>: CollectionViewBinde
         }
     }
 
-    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize {
+    func collectionView(_: UICollectionView, layout _: UICollectionViewLayout, referenceSizeForHeaderInSection _: Int) -> CGSize {
         return CGSize(width: 200, height: 20)
     }
 }
@@ -91,12 +88,11 @@ class CustomBinder<Changeset: SectionedDataSourceChangeset>: CollectionViewBinde
 let initialData = Array2D<String, Int>(sectionsWithItems: [
     ("A", [1, 2]),
     ("B", [10, 20])
-    ])
+])
 
 let data = MutableObservableArray2D(initialData)
 
-
-data.bind(to: collectionView, cellType: Cell.self, using: CustomBinder()) { (cell, item) in
+data.bind(to: collectionView, cellType: Cell.self, using: CustomBinder()) { cell, item in
     cell.titleLabel.text = "\(item)"
 }
 
@@ -105,7 +101,7 @@ DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
 }
 
 DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
-    data.batchUpdate { (data) in
+    data.batchUpdate { data in
         data.appendItem(4, toSectionAt: 0)
         data.insert(section: "Aa", at: 1)
         data.appendItem(100, toSectionAt: 1)
@@ -120,4 +116,5 @@ DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
 DispatchQueue.main.asyncAfter(deadline: .now() + 4) {
     data.replaceItems(ofSectionAt: 1, with: [1, 100, 20], performDiff: true)
 }
+
 //: [Next](@next)

Playground-iOS.playground/Pages/UIPickerView+ObservableArray2D.xcplaygroundpage/Contents.swift

@@ -1,13 +1,13 @@
 //: [Previous](@previous)
 
-///: Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
-///: targets with any iOS Simulator as a destination.
+/// : Before running the playground, make sure to build "Bond-iOS" and "PlaygroundSupport"
+/// : targets with any iOS Simulator as a destination.
 
+import Bond
 import Foundation
 import PlaygroundSupport
-import UIKit
-import Bond
 import ReactiveKit
+import UIKit
 
 let pickerView = UIPickerView()
 pickerView.frame.size = CGSize(width: 300, height: 300)
@@ -31,7 +31,7 @@ data.bind(to: pickerView)
 // Handle cell selection
 let selectedRow = pickerView.reactive.selectedRow
 
-selectedRow.observeNext { (row, component) in
+selectedRow.observeNext { row, component in
     print("selected", row, component)
 }
 
@@ -41,7 +41,7 @@ let selectedPair = selectedRow.scan([0, 0]) { (pair, rowAndComponent) -> [Int] i
     return pair
 }
 
-selectedPair.observeNext { (pair) in
+selectedPair.observeNext { pair in
     print("selected indices", pair)
     let items = pair.enumerated().map {
         data[itemAt: [$0.offset, $0.element]]