Millisel etapil toimub viitearvuti haldamine ARC-mälu automaatrežiimis?

During automatic memory counting with ARC (Automatic Reference Counting), reference counter management occurs during compilation and code execution.

• In the compilation phase, the compiler analyzes the code and automatically inserts calls to increase (retain) and decrease (release) the reference count around object assignment and usage operations.

• During execution, these inserted calls manage the lifecycle of objects: increasing the counter keeps the object alive; decreasing it, and reaching zero, releases the object.

Thus, reference count management happens implicitly and automatically during program execution, thanks to the instructions inserted by the compiler.

Example in Swift:

class Person {}

func createPerson() {
    let p = Person() // ARC increases the counter
    // ... use of p
} // upon exiting the function, ARC decreases the counter, and if there are no other references, the object is released

This allows developers not to worry about manual memory management.