new material for Xcode 7 beta 5

mattneub · Aug 8, 2015 · a06dcb8 · a06dcb8
1 parent 58b481f
commit a06dcb8
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Showing 3 changed files with 47 additions and 0 deletions.
diff --git a/bk1ch04p132enums/bk1ch04p132enums/ViewController.swift b/bk1ch04p132enums/bk1ch04p132enums/ViewController.swift
@@ -78,6 +78,12 @@ class ViewController: UIViewController {
         case .Fatal(let theNumber, let theMessage):
             print("number: \(theNumber), message: \(theMessage)")
         }
+
+        do {
+            let fatalMaker = Error2.Fatal
+            let err = fatalMaker(n:-1000, s:"Unbelievably bad error")
+            _ = err
+        }
 
         switch s {
         case .Some(let theString):

diff --git a/bk1ch04p153classInitializers/bk1ch04p153classInitializers/ViewController.swift b/bk1ch04p153classInitializers/bk1ch04p153classInitializers/ViewController.swift
@@ -112,6 +112,35 @@ class NoisyDog9 : Dog9 {
         super.init(name:"Fido", license:123)
         return nil // _now_ you are allowed to fail
     }
+    // illegal: init? cannot override init
+//    override init?(name:String, license:Int) {
+//        super.init(name:name, license:license)
+//    }
+    override init(name:String, license:Int) {
+        super.init(name:name, license:license)
+    }
+}
+class ObnoxiousDog9 : NoisyDog9 {
+    // legal, init can override init?
+    override init(ok:Bool) {
+        super.init(name:"Fido", license:123)
+    }
+}
+class CrazyDog9 : NoisyDog9 {
+    override init(ok:Bool) {
+        super.init(ok:ok)! // legal: call super's designated init? without ? and by adding !
+    }
+}
+
+class A:NSObject {
+    init?(ok:Bool) {
+        super.init()
+    }
+}
+class B:A {
+    override init(ok:Bool) {
+        super.init(ok:ok)!
+    }
 }
 
 

diff --git a/bk1ch05p240error/bk1ch05p241error/ViewController.swift b/bk1ch05p240error/bk1ch05p241error/ViewController.swift
@@ -13,6 +13,14 @@ enum MySecondError : ErrorType {
     case SecondFatalMistake
 }
 
+struct SomeStruct : ErrorType {
+
+}
+struct SomeClass : ErrorType {
+
+}
+
+
 class ViewController: UIViewController {
 
     var ok = true
@@ -39,6 +47,10 @@ class ViewController: UIViewController {
             print(error)
         }
 
+        var err = SomeStruct()
+        print(err._domain)
+        print(err._code)
+
     }
 
     func test() {