Move helper method

SocketIO-MacTests/SocketSideEffectTest.swift

@@ -140,7 +140,7 @@ class SocketSideEffectTest: XCTestCase {
     func testSocketDataToAnyObject() {
         let data = ["test", 1, 2.2, ["Hello": 2, "bob": 2.2], true, [1, 2], [1.1, 2]] as [SocketData]
         
-        XCTAssertEqual(data.count, socket.socketDataToAnyObject(data).count)
+        XCTAssertEqual(data.count, data.toAnyObjectArray().count)
     }
     
     func testHandleMultipleBinaryEvent() {

Source/SocketAckEmitter.swift

@@ -36,7 +36,7 @@ public final class SocketAckEmitter : NSObject {
     public func with(_ items: SocketData...) {
         guard ackNum != -1 else { return }
         
-        socket.emitAck(ackNum, with: socket.socketDataToAnyObject(items))
+        socket.emitAck(ackNum, with: items.toAnyObjectArray())
     }
     
     public func with(_ items: [AnyObject]) {

Source/SocketExtensions.swift

@@ -29,6 +29,13 @@ enum JSONError : Error {
     case notNSDictionary
 }
 
+extension Array {
+    /// Because Swift 3 removes a lot of implicit briding so we have to perform more casts
+    func toAnyObjectArray() -> [AnyObject] {
+        return flatMap({$0 as? AnyObject})
+    }
+}
+
 extension Array where Element: AnyObject {
     func toJSON() throws -> Data {
         return try JSONSerialization.data(withJSONObject: self as NSArray, options: JSONSerialization.WritingOptions(rawValue: 0))

Source/SocketIOClient.swift

@@ -214,7 +214,7 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
 
     /// Send a message to the server
     public func emit(_ event: String, _ items: SocketData...) {
-        emit(event, with: socketDataToAnyObject(items))
+        emit(event, with: items.toAnyObjectArray())
     }
 
     /// Same as emit, but meant for Objective-C
@@ -230,7 +230,7 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
     /// Sends a message to the server, requesting an ack. Use the onAck method of SocketAckHandler to add
     /// an ack.
     public func emitWithAck(_ event: String, _ items: SocketData...) -> OnAckCallback {
-        return emitWithAck(event, with: socketDataToAnyObject(items))
+        return emitWithAck(event, with: items.toAnyObjectArray())
     }
 
     /// Same as emitWithAck, but for Objective-C
@@ -410,11 +410,6 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
     public func removeAllHandlers() {
         handlers.removeAll(keepingCapacity: false)
     }
-    
-    /// Because Swift 3 removes a lot of implicit briding so we have to perform more casts
-    func socketDataToAnyObject(_ data: [SocketData]) -> [AnyObject] {
-        return data.flatMap({$0 as? AnyObject})
-    }
 
     private func tryReconnect(reason: String) {
         guard reconnecting else { return }