Notification Center Poster protocol

NotificationPosterProtocol.swift

/// Reflects notification posting functionality of `NotificationCenter`.
public protocol NotificationPosterProtocol: AnyObject {
    /// Creates a notification with a given name, sender and user info and posts it to the notification center.
    /// - Parameters:
    ///   - aName: The name of the notification.
    ///   - anObject: The object posting the notification.
    ///   - userInfo: A user info dictionary with optional information about the notification.
    func post(name aName: NSNotification.Name, object anObject: Any?, userInfo: [AnyHashable: Any]?)
    /// Creates a notification with a given name and sender and posts it to the notification center.
    /// - Parameters:
    ///   - aName: The name of the notification.
    ///   - anObject: The object posting the notification.
    func post(name aName: NSNotification.Name, object anObject: Any?)
    /// Creates a notification with a given name posts it to the notification center.
    /// - Parameters:
    ///   - aName: The name of the notification.
    func post(name aName: NSNotification.Name)
}

public extension NotificationPosterProtocol {
    /// Creates a notification with a given name and sender and posts it to the notification center.
    /// - Parameters:
    ///   - aName: The name of the notification.
    ///   - anObject: The object posting the notification.
    func post(name aName: NSNotification.Name, userInfo: [AnyHashable: Any]?) {
        post(name: aName, object: nil, userInfo: userInfo)
    }

    /// Creates a notification with a given name posts it to the notification center.
    /// - Parameters:
    ///   - aName: The name of the notification.
    func post(name aName: NSNotification.Name) {
        post(name: aName, object: nil)
    }
}

extension NotificationCenter: NotificationPosterProtocol {}