Open Classswift 6.1.2Foundation
Operation
class Operationclass Operationimport Foundationclass NSObjectThe root class of most Foundation class hierarchies.
protocol CustomDebugStringConvertibleA type with a customized textual representation suitable for debugging purposes.
protocol CustomStringConvertibleA type with a customized textual representation.
protocol EquatableA type that can be compared for value equality.
protocol Hashable : EquatableA type that can be hashed into a Hasher to produce an integer hash value.
protocol NSObjectProtocol : AnyObjectThe NSObjectProtocol groups methods that are fundamental to all Foundation objects.
protocol SendableA thread-safe type whose values can be shared across arbitrary concurrent contexts without introducing a risk of data races. Values of the type may have no shared mutable state, or they may protect that state with a lock or by forcing it to only be accessed from a specific actor.
override init() var completionBlock: (() -> Void)? { get set }var dependencies: [Operation] { get }var isAsynchronous: Bool { get }var isCancelled: Bool { get }var isExecuting: Bool { get }var isFinished: Bool { get }var isReady: Bool { get }var name: String? { get set }var qualityOfService: QualityOfService { get set }var queuePriority: Operation.QueuePriority { get set }func addDependency(_ op: Operation) func cancel() func didChangeValue<Value>(for keyPath: KeyPath<Operation, Value>) func didChangeValue(forKey key: String) func main() func removeDependency(_ op: Operation) func start() func waitUntilFinished() func willChangeValue<Value>(for keyPath: KeyPath<Operation, Value>) func willChangeValue(forKey key: String) enum QueuePriorityclass BlockOperation