Method set_state

crates/vm/src/builtins/iter.rs:54–69

(&mut self, state: PyObjectRef, f: F, vm: &VirtualMachine)

    }

    pub fn set_state<F>(&mut self, state: PyObjectRef, f: F, vm: &VirtualMachine) -> PyResult<()>
    where
        F: FnOnce(&T, usize) -> usize,
    {
        if let IterStatus::Active(obj) = &self.status {
            if let Some(i) = state.downcast_ref::<PyInt>() {
                let i = i.try_to_primitive(vm).unwrap_or(0);
                self.position = f(obj, i);
                Ok(())
            } else {
                Err(vm.new_type_error("an integer is required."))
            }
        } else {
            Ok(())
        }
    }

    /// Build a pickle-compatible reduce tuple.
    ///