Method gc_get_referent_ptrs

crates/vm/src/object/core.rs:1734–1741

Get raw pointers to referents without incrementing reference counts. This is used during GC to avoid reference count manipulation. tp_traverse visits objects without incref # Safety The returned pointers are only valid as long as the object is alive and its contents haven't been modified.

(&self)

    /// The returned pointers are only valid as long as the object is alive
    /// and its contents haven't been modified.
    pub unsafe fn gc_get_referent_ptrs(&self) -> Vec<NonNull<PyObject>> {
        let mut result = Vec::new();
        // Traverse the entire object including dict and slots
        self.0.traverse(&mut |child: &PyObject| {
            result.push(NonNull::from(child));
        });
        result
    }

    /// Pop edges from this object for cycle breaking.
    /// Returns extracted child references that were removed from this object (tp_clear).