1
 2
 3
 4
 5
 6
 7
 8
 9
10

use std::mem;
use std::cell::UnsafeCell;
use std::rc::Rc;

use priv_traits::*;

pub unsafe fn transform_sink_lifetime<'a,'b,T,S:SinkInner<'b,T>>(st: Rc<UnsafeCell<S>>) -> Rc<UnsafeCell<dyn SinkInner<'a, T>>>{
    let st: Rc<UnsafeCell<dyn SinkInner<'b,T>>> = st.clone();
    mem::transmute(st)
}