Is it possible to declare a variable with the Weak modifier that is constant and unchangeable in the program?

In Swift, a variable with the weak modifier must be declared as var, not let. This is because a weak reference (weak) automatically becomes nil when the object it references is deallocated. If weak were declared as let (a constant), then after setting it to nil, the value could not be changed, which contradicts the very idea of a weak reference.

Therefore, declaring a weak constant is impossible, as a weak reference must be mutable to be properly nulled out when the object is deallocated.