An (unsuccessful) attempt at creating an operator that runs any closure depending on a boolean argument.

boolAssigment.swift

infix operator <-?

func <-? <T> (defaultValue: @autoclosure () throws ->  T , condition: Bool ) rethrows -> T {
    if condition{
        return try defaultValue()
    }
    
    return () as! T
}

var  v: Int? = 100



let closure = { return 3 }

v = closure()  <-? true
print("closure:", v ?? 0)

print("hello")  <-? true
print("hello")  <-? false  // works ok

v = 100 <-? true
print("Assigment:", v ?? 0)


//v = 100 <-? false   // CRASH !
// was hoping for a way to not return anything here, not even nil 😅