track_rc_clone

borrowscope_runtime

Function track_rc_clone 

Source 
pub fn track_rc_clone<T: ?Sized>(
    name: &str,
    source_name: &str,
    value: Rc<T>,
) -> Rc<T>
Expand description

Track Rc::clone operation.

Records an RcClone event with the updated reference counts. Use this when cloning an Rc to share ownership.

§Arguments

  • name - A descriptive name for the new clone
  • source_name - Name of the Rc being cloned from
  • value - The cloned Rc (returned unchanged)

§Returns

The input Rc, unchanged.

§Examples

use std::rc::Rc;

let original = track_rc_new("original", Rc::new(42));
let clone1 = track_rc_clone("clone1", "original", Rc::clone(&original));
let clone2 = track_rc_clone("clone2", "original", Rc::clone(&original));

assert_eq!(Rc::strong_count(&original), 3);

let events = get_events();
assert_eq!(events[1].strong_count(), Some(2)); // After first clone
assert_eq!(events[2].strong_count(), Some(3)); // After second clone