Add isBinary property to SocketPacket.PacketType

Author: nuclearace

Source/SocketIO/Manager/SocketManager.swift

@@ -392,7 +392,7 @@ open class SocketManager : NSObject, SocketManagerSpec, SocketParsable, SocketDa
 
     private func _parseEngineMessage(_ msg: String) {
         guard let packet = parseSocketMessage(msg) else { return }
-        guard packet.type != .binaryAck && packet.type != .binaryEvent else {
+        guard !packet.type.isBinary else {
             waitingPackets.append(packet)
 
             return

Source/SocketIO/Parse/SocketPacket.swift

@@ -116,7 +116,7 @@ public struct SocketPacket : CustomStringConvertible {
     private func createPacketString() -> String {
         let typeString = String(type.rawValue)
         // Binary count?
-        let binaryCountString = typeString + (type == .binaryEvent || type == .binaryAck ? "\(String(binary.count))-" : "")
+        let binaryCountString = typeString + (type.isBinary ? "\(String(binary.count))-" : "")
         // Namespace?
         let nspString = binaryCountString + (nsp != "/" ? "\(nsp)," : "")
         // Ack number?
@@ -181,6 +181,13 @@ public extension SocketPacket {
 
         /// Binary Ack: 6
         case binaryAck
+
+        // MARK: Properties
+
+        /// Whether or not this type is binary
+        public var isBinary: Bool {
+            return self == .binaryAck || self == .binaryEvent
+        }
     }
 }
 

Source/SocketIO/Parse/SocketParsable.swift

@@ -88,7 +88,7 @@ public extension SocketParsable where Self: SocketManagerSpec & SocketDataBuffer
         var namespace = "/"
         var placeholders = -1
 
-        if type == .binaryEvent || type == .binaryAck {
+        if type.isBinary {
             if let holders = Int(reader.readUntilOccurence(of: "-")) {
                 placeholders = holders
             } else {