Add raw view to ack emitter

Source/SocketIO/Ack/SocketAckEmitter.swift

@@ -29,8 +29,20 @@ import Foundation
 ///
 /// **NOTE**: You should not store this beyond the life of the event handler.
 public final class SocketAckEmitter : NSObject {
-    let socket: SocketIOClient
-    let ackNum: Int
+    private unowned let socket: SocketIOClient
+    private let ackNum: Int
+
+    /// A view into this emitter where emits do not check for binary data.
+    ///
+    /// Usage:
+    ///
+    /// ```swift
+    /// ack.rawEmitView.with(myObject)
+    /// ```
+    ///
+    /// **NOTE**: It is not safe to hold on to this view beyond the life of the socket.
+    @objc
+    public private(set) lazy var rawEmitView = SocketRawAckView(socket: socket, ackNum: ackNum)
 
     // MARK: Properties
 

Source/SocketIO/Client/SocketIOClient.swift

@@ -310,9 +310,13 @@ open class SocketIOClient : NSObject, SocketIOClientSpec {
     /// - parameter ack: The ack number.
     /// - parameter with: The data for this ack.
     open func emitAck(_ ack: Int, with items: [Any]) {
+        emitAck(ack, with: items, binary: true)
+    }
+
+    func emitAck(_ ack: Int, with items: [Any], binary: Bool) {
         guard status == .connected else { return }
 
-        let packet = SocketPacket.packetFromEmit(items, id: ack, nsp: nsp, ack: true, checkForBinary: true)
+        let packet = SocketPacket.packetFromEmit(items, id: ack, nsp: nsp, ack: true, checkForBinary: binary)
         let str = packet.packetString
 
         DefaultSocketLogger.Logger.log("Emitting Ack: \(str)", type: logType)

Source/SocketIO/Client/SocketRawView.swift

@@ -1,6 +1,26 @@
 //
+//  SocketRawView.swift
+//  Socket.IO-Client-Swift
+//
 //  Created by Erik Little on 3/30/18.
 //
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
 
 import Foundation
 
@@ -103,3 +123,46 @@ public final class SocketRawView: NSObject {
         return socket.createOnAck([event] + items, binary: false)
     }
 }
+
+/// Class that gives a backwards compatible way to cause an emit not to recursively check for Data objects.
+///
+/// Usage:
+///
+/// ```swift
+/// ack.rawEmitView.with(myObject)
+/// ```
+public final class SocketRawAckView : NSObject {
+    private unowned let socket: SocketIOClient
+    private let ackNum: Int
+
+    init(socket: SocketIOClient, ackNum: Int) {
+        self.socket = socket
+        self.ackNum = ackNum
+    }
+
+    /// Call to ack receiving this event.
+    ///
+    /// If an error occurs trying to transform `items` into their socket representation, a `SocketClientEvent.error`
+    /// will be emitted. The structure of the error data is `[ackNum, items, theError]`
+    ///
+    /// - parameter items: A variable number of items to send when acking.
+    public func with(_ items: SocketData...) {
+        guard ackNum != -1 else { return }
+
+        do {
+            socket.emitAck(ackNum, with: try items.map({ try $0.socketRepresentation() }), binary: false)
+        } catch let err {
+            socket.handleClientEvent(.error, data: [ackNum, items, err])
+        }
+    }
+
+    /// Call to ack receiving this event.
+    ///
+    /// - parameter items: An array of items to send when acking. Use `[]` to send nothing.
+    @objc
+    public func with(_ items: [Any]) {
+        guard ackNum != -1 else { return }
+
+        socket.emitAck(ackNum, with: items, binary: false)
+    }
+}

Tests/TestSocketIOObjc/SocketObjectiveCTest.m

@@ -26,6 +26,7 @@
 - (void)testOnSyntax {
     [self.socket on:@"someCallback" callback:^(NSArray* data, SocketAckEmitter* ack) {
         [ack with:@[@1]];
+        [[ack rawEmitView] with:@[@"hello"]];
     }];
 }