Swift Property wrapper for debouncing values

Debounced.swift

@propertyWrapper
public final class Debounced<T: Hashable>: BindingConvertible {
    public let delay: Double

    private var _value: T
    private var timer: Timer? = nil

    public var wrappedValue: T {
        get {
            return _value
        }
        set(newValue) {
            timer?.invalidate()
            timer = Timer.scheduledTimer(withTimeInterval: delay, repeats: false, block: { [weak self] timer in
                self?._value = newValue
                timer.invalidate()
            })
        }
    }

    public var binding: Binding<T> {
        return Binding(getValue: { return self.wrappedValue },
                       setValue: { newValue in self.wrappedValue = newValue })
    }

    public var wrapperValue: Binding<T> {
        return self.binding
    }

    public init(wrappedValue: T, delay: Double) {
        self._value = wrappedValue
        self.delay = delay
    }
}