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Pods/RxCocoa/Platform/DispatchQueue+Extensions.swift

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+//
+//  DispatchQueue+Extensions.swift
+//  Platform
+//
+//  Created by Krunoslav Zaher on 10/22/16.
+//  Copyright © 2016 Krunoslav Zaher. All rights reserved.
+//
+
+import Dispatch
+
+extension DispatchQueue {
+    private static var token: DispatchSpecificKey<()> = {
+        let key = DispatchSpecificKey<()>()
+        DispatchQueue.main.setSpecific(key: key, value: ())
+        return key
+    }()
+
+    static var isMain: Bool {
+        DispatchQueue.getSpecific(key: token) != nil
+    }
+}