How is the value of the type 'value' preserved when capturing it in a closure?

In Swift, when capturing a value of a value type (such as a struct or primitive types) in a closure, a copy of that value is created. This means that the closure holds its own copy of the variable, and changes to the external variable after the closure is created will not affect the value inside the closure.

Example:

var x = 10
let closure = { print(x) }
x = 20
closure() // Will print 10, because the value was captured, not the reference

Thus, the value of a value type is stored in the closure as a copy at the moment of the closure's creation.