Swift Property Wrapper to make a Var Thread-Safe using an enforced Semaphore Lock

ThreadSafePropertyWrapper.swift

import Foundation

@propertyWrapper
public struct ThreadSafe<T> {
    public var lock = DispatchSemaphore(value: 1)
    private var value: T
    
    public var wrappedValue: T {
        get {
            lock.wait()
            let result = value
            lock.signal()
            return result
        }
        set {
            lock.wait()
            value = newValue
            lock.signal()
        }
    }
    
    public init(wrappedValue: T) {
        lock.wait()
        value = wrappedValue
        lock.signal()
    }
}

OBSOLITE!

Use instead my Swift Package, which you can find with full instructions here: https://github.com/Flowduino/ThreadSafeSwift/