I want to check reference count for an object, using language swift refcount command in debugger.
Sample code:
import Foundation
class Person {
let name: String
init(name: String) { self.name = name }
var apartment: Apartment?
deinit { print("\(name) is being deinitialized") }
}
class Apartment {
let unit: String
init(unit: String) { self.unit = unit }
weak var tenant: Person?
deinit { print("Apartment \(unit) is being deinitialized") }
}
var john: Person?
var unit4A: Apartment?
john = Person(name: "John Appleseed")
unit4A = Apartment(unit: "4A")
john!.apartment = unit4A
unit4A!.tenant = john
john = nil // <-- set breakpoint here
unit4A = nil
But, when I put breakpoint into john = nil line, paste language swift refcount john command into lldb command line and hit Enter, an error is occured:
error: refcount only available for class types
Why? Is it broken in latest Xcode Version 14.0.1 (14A400) or am I doing something wrong?
RedXIII
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