Struct DropToken 

pub struct DropToken { /* private fields */ }

A drop-checking token.

Created by DropCheck.

Trait Implementations

impl Clone for DropToken

Cloning a DropToken creates a fresh state, that’s still tied to the DropCheck set that created the token. This means that leaking the cloned token is detected:

let dropcheck = DropCheck::new();
let token = dropcheck.token();

let cloned_token = token.clone();
std::mem::forget(cloned_token);
// panics when dropcheck is dropped

Since the new token is part of the set it came from, it affects none_dropped/all_dropped:

let dropcheck = DropCheck::new();
let token = dropcheck.token();

let cloned_token = token.clone();
assert!(dropcheck.none_dropped());

drop(cloned_token);
assert!(!dropcheck.none_dropped());

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DropToken

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for DropToken

fn drop(&mut self)

Executes the destructor for this type.