Deferrer

defer! macro for deferring functions.

Example

use deferrer::*;
use std::cell::RefCell;

let mut s = RefCell::new(String::from("Hello"));
{
	defer!( || s.borrow_mut().push_str(" world!") );
 	assert_eq!(*s.borrow(), "Hello");
}
assert_eq!(*s.borrow(), "Hello world!");