Struct drop_guard::DropGuard

pub struct DropGuard<T, F: FnMut(T)> { /* fields omitted */ }

Methods

impl<T: Sized, F: FnMut(T)> DropGuard<T, F>

fn new(data: T, func: F) -> DropGuard<T, F>

Creates a new guard taking in your data and a function.

use drop_guard::DropGuard;
 
let s = String::from("a commonString");
let mut s = DropGuard::new(s, |final_string| println!("s became {} at last", final_string));
 
// much code and time passes by ...
*s = "a rainbow".to_string();
 
// by the end of this function the String will have become a rainbow

Trait Implementations

impl<T, F: FnMut(T)> Deref for DropGuard<T, F>

type Target = T

The resulting type after dereferencing

fn deref(&self) -> &T

The method called to dereference a value

impl<T, F: FnMut(T)> DerefMut for DropGuard<T, F>

fn deref_mut(&mut self) -> &mut T

The method called to mutably dereference a value

impl<T, F: FnMut(T)> Drop for DropGuard<T, F>

fn drop(&mut self)

A method called when the value goes out of scope.