Update master to build with Xcode 9.3 beta 1

Author: shahmishal

README.md

@@ -54,7 +54,7 @@ supported host development operating systems.
 
 #### macOS
 
-To build for macOS, you need [Xcode 9.2](https://developer.apple.com/xcode/downloads/).
+To build for macOS, you need [Xcode 9.3 beta](https://developer.apple.com/xcode/downloads/).
 The required version of Xcode changes frequently, and is often a beta release.
 Check this document or the host information on <https://ci.swift.org> for the
 current required version.

stdlib/public/SDK/ARKit/ARKit.swift

@@ -27,6 +27,10 @@ extension ARCamera {
 
             /** Tracking is limited due to a lack of features visible to the camera. */
             case insufficientFeatures
+
+            /** Tracking is limited due to a relocalization in progress. */
+            @available(iOS, introduced: 11.3)
+            case relocalizing
         }
 
         /** Tracking is not available. */
@@ -49,10 +53,20 @@ extension ARCamera {
         case .limited:
             let reason: TrackingState.Reason
 
-            switch __trackingStateReason {
-            case .initializing: reason = .initializing
-            case .excessiveMotion: reason = .excessiveMotion
-            default: reason = .insufficientFeatures
+            if #available(iOS 11.3, *) {
+                switch __trackingStateReason {
+                case .initializing: reason = .initializing
+                case .relocalizing: reason = .relocalizing
+                case .excessiveMotion: reason = .excessiveMotion
+                default: reason = .insufficientFeatures
+                }
+            }
+            else {
+                switch __trackingStateReason {
+                case .initializing: reason = .initializing
+                case .excessiveMotion: reason = .excessiveMotion
+                default: reason = .insufficientFeatures
+                }
             }
 
             return .limited(reason)
@@ -105,3 +119,38 @@ extension ARFaceGeometry {
         return Array(buffer)
     }
 }
+
+@available(iOS, introduced: 11.3)
+extension ARPlaneGeometry {
+    /**
+     The mesh vertices of the geometry.
+     */
+    @nonobjc public var vertices: [vector_float3] {
+        let buffer = UnsafeBufferPointer(start: __vertices, count: Int(__vertexCount))
+        return Array(buffer)
+    }
+    
+    /**
+     The texture coordinates of the geometry.
+     */
+    @nonobjc public var textureCoordinates: [vector_float2] {
+        let buffer = UnsafeBufferPointer(start: __textureCoordinates, count: Int(__textureCoordinateCount))
+        return Array(buffer)
+    }
+    
+    /**
+     The triangle indices of the geometry.
+     */
+    @nonobjc public var triangleIndices: [Int16] {
+        let buffer = UnsafeBufferPointer(start: __triangleIndices, count: Int(triangleCount * 3))
+        return Array(buffer)
+    }
+    
+    /**
+     The vertices of the geometry's outermost boundary.
+     */
+    @nonobjc public var boundaryVertices: [vector_float3] {
+        let buffer = UnsafeBufferPointer(start: __boundaryVertices, count: Int(__boundaryVertexCount))
+        return Array(buffer)
+    }
+}

stdlib/public/SDK/Foundation/NSCoder.swift

@@ -167,6 +167,25 @@ extension NSKeyedUnarchiver {
     try resolveError(error)
     return result
   }
+
+  @nonobjc
+  @available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
+  public static func unarchivedObject<DecodedObjectType>(ofClass cls: DecodedObjectType.Type, from data: Data) throws -> DecodedObjectType? {
+    var error: NSError?
+    let result = __NSKeyedUnarchiverSecureUnarchiveObjectOfClass(cls as! AnyClass, data, &error)
+    try resolveError(error)
+    return result as? DecodedObjectType
+  }
+
+  @nonobjc
+  @available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
+  public static func unarchivedObject(ofClasses classes: [AnyClass], from data: Data) throws -> Any? {
+    var error: NSError?
+    let classesAsNSObjects = NSSet(array: classes.map { $0 as AnyObject })
+    let result = __NSKeyedUnarchiverSecureUnarchiveObjectOfClasses(classesAsNSObjects, data, &error)
+    try resolveError(error)
+    return result
+  }
 
   @nonobjc
   private static let __plistClasses: [AnyClass] = [

stdlib/public/SwiftShims/NSKeyedArchiverShims.h

@@ -14,7 +14,6 @@
 
 NS_BEGIN_DECLS
 
-
 NS_INLINE NS_RETURNS_RETAINED _Nullable id __NSKeyedUnarchiverUnarchiveObject(id Self_, NS_NON_BRIDGED(NSData *)data, NSError **_Nullable error) {
     if (error) {
         return [Self_ unarchiveTopLevelObjectWithData:(NSData *)data error:error];
@@ -23,4 +22,18 @@ NS_INLINE NS_RETURNS_RETAINED _Nullable id __NSKeyedUnarchiverUnarchiveObject(id
     }
 }
 
+// Re-exposed here until all SDKs contain the relevant methods publicly.
+@interface NSKeyedUnarchiver (SecureMethods)
++ (nullable id)unarchivedObjectOfClass:(Class)cls fromData:(NSData *)data error:(NSError **)error API_AVAILABLE(macos(10.13), ios(11.0), watchos(4.0), tvos(11.0));
++ (nullable id)unarchivedObjectOfClasses:(NSSet<Class> *)classes fromData:(NSData *)data error:(NSError **)error API_AVAILABLE(macos(10.13), ios(11.0), watchos(4.0), tvos(11.0));
+@end
+
+NS_INLINE NS_RETURNS_RETAINED id _Nullable __NSKeyedUnarchiverSecureUnarchiveObjectOfClass(Class cls, NSData *data, NSError * _Nullable * _Nullable error) {
+    return [NSKeyedUnarchiver unarchivedObjectOfClass:cls fromData:data error:error];
+}
+
+NS_INLINE NS_RETURNS_RETAINED id _Nullable __NSKeyedUnarchiverSecureUnarchiveObjectOfClasses(NS_NON_BRIDGED(NSSet *) classes, NSData *data, NSError * _Nullable * _Nullable error) {
+    return [NSKeyedUnarchiver unarchivedObjectOfClasses:classes fromData:data error:error];
+}
+
 NS_END_DECLS

test/stdlib/DispatchRenames.swift

@@ -11,5 +11,9 @@ _ = dispatch_get_global_queue(0, 0) // expected-error {{'dispatch_get_global_que
 
 _ = dispatch_source_create(OpaquePointer(bitPattern: ~0)!, 0, 0, nil) // expected-error {{'dispatch_source_create' is unavailable: Use DispatchSource class methods}}
 
-_ = dispatch_get_main_queue() // expected-error {{'dispatch_get_main_queue()' has been replaced by property 'DispatchQueue.main'}}
+// Next test is disabled pending what to do about libdispatch change to the signature of dispatch_get_main_queue(): rdar://problem/36528231.
+// To re-enable, remove the #if/#endif and remove "FIXME-" from 'expected-FIXME-error'
+#if false
+_ = dispatch_get_main_queue() // expected-FIXME-error {{'dispatch_get_main_queue()' has been replaced by property 'DispatchQueue.main'}}
+#endif
 _ = DispatchQueue.main

test/stdlib/Foundation_NewGenericAPIs.swift

@@ -63,3 +63,15 @@ func test_NSKeyedUnarchiver_decodeObjectForKey(
   expectType(Optional<Any>.self, &r)
 }
 
+
+@available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
+func test_NSKeyedUnarchiver_unarchivedObjectOfClass(from data: Data) throws {
+    var r = try NSKeyedUnarchiver.unarchivedObject(ofClass: NSString.self, from: data)
+    expectType(NSString?.self, &r)
+}
+
+@available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
+func test_NSKeyedUnarchiver_unarchivedObjectOfClasses(from data: Data) throws {
+    var r = try NSKeyedUnarchiver.unarchivedObject(ofClasses: [NSString.self, NSData.self, NSArray.self], from: data)
+    expectType(Any?.self, &r)
+}

test/stdlib/NSKeyedArchival.swift

@@ -163,21 +163,68 @@ func test_toplevelAPIVariants() {
   }
 }
 
+@available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
+func test_unarchiveObjectOfClass() {
+  let topLevel = NSArray()
+  let data = NSKeyedArchiver.archivedData(withRootObject: topLevel)
+
+  // Should be able to decode an NSArray back out.
+  expectNoError {
+    guard let result = try NSKeyedUnarchiver.unarchivedObject(ofClass: NSArray.self, from: data) else {
+      expectUnreachable("Unable to decode top-level array.")
+      return
+    }
+
+    expectEqual(result, topLevel)
+  }
+
+  // Shouldn't be able to decode an NSString out of an NSArray.
+  expectError {
+    let _ = try NSKeyedUnarchiver.unarchivedObject(ofClass: NSString.self, from: data)
+  }
+}
+
+@available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *)
+func test_unarchiveObjectOfClasses() {
+  let topLevel = NSArray()
+  let data = NSKeyedArchiver.archivedData(withRootObject: topLevel)
+
+  // Should be able to unarchive an array back out.
+  expectNoError {
+    guard let result = try NSKeyedUnarchiver.unarchivedObject(ofClasses: [NSArray.self], from: data) as? NSArray else {
+      expectUnreachable("Unable to decode top-level array.")
+      return
+    }
+
+    expectEqual(result, topLevel)
+  }
+
+  // Shouldn't be able to decode an NSString out of an NSArray.
+  expectError {
+    let _ = try NSKeyedUnarchiver.unarchivedObject(ofClasses: [NSString.self], from: data)
+  }
+}
+
 // MARK: - Run Tests
 
 #if !FOUNDATION_XCTEST
 if #available(OSX 10.11, iOS 9.0, *) {
   let NSKeyedArchiverTest = TestSuite("TestNSKeyedArchiver")
-  let tests = [
+  var tests = [
     "NSKeyedArchival.simpleCodableSupportInNSKeyedArchival": test_simpleCodableSupport,
     "NSKeyedArchival.encodableErrorHandling": test_encodableErrorHandling,
     "NSKeyedArchival.readingNonCodableFromDecodeDecodable": test_readingNonCodableFromDecodeDecodable,
     "NSKeyedArchival.toplevelAPIVariants": test_toplevelAPIVariants
   ]
+
+  if #available(OSX 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *) {
+    tests["NSKeyedArchival.unarchiveObjectOfClass"] = test_unarchiveObjectOfClass
+    tests["NSKeyedArchival.unarchiveObjectOfClasses"] = test_unarchiveObjectOfClasses
+  }
 
   for (name, test) in tests {
     NSKeyedArchiverTest.test(name) { test() }
   }
   runAllTests()
 }
-#endif
+#endif