| //===----------------------------------------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| |
| @_exported import AVFoundation // Clang module |
| import Foundation |
| |
| |
| #if os(iOS) |
| @available(iOS, introduced: 11.0) |
| extension AVCaptureSynchronizedDataCollection : Sequence { |
| public func makeIterator() -> Iterator { |
| return Iterator(self) |
| } |
| |
| public struct Iterator : IteratorProtocol { |
| internal var fastIterator: NSFastEnumerationIterator |
| |
| internal init(_ collection: AVCaptureSynchronizedDataCollection) { |
| self.fastIterator = NSFastEnumerationIterator(collection) |
| } |
| |
| public mutating func next() -> AVCaptureSynchronizedData? { |
| guard let nextAny = fastIterator.next() else { return nil } |
| return (nextAny as! AVCaptureSynchronizedData) |
| } |
| } |
| } |
| |
| #endif |
