Crate enclose

A convenient macro for cloning values into a closure.

Use

use std::thread;
use std::sync::Arc;
use std::sync::Mutex;

let v = Arc::new(Mutex::new( 0 ));
let thread = thread::spawn( enclose!((v) move || {
    let mut v_lock = match v.lock() {
        Ok(a) => a,
        Err(e) => e.into_inner(),
    };
    *v_lock += 1;
}));

thread.join().unwrap();
{
    let v_lock = match v.lock() {
        Ok(a) => a,
        Err(e) => e.into_inner(),
    };
    assert_eq!(*v_lock, 1);
}

Use 2

use std::thread;
use std::sync::Arc;
use std::sync::Mutex;
use std::sync::RwLock;

let v = Arc::new(Mutex::new( 0 ));
let v2 = Arc::new(RwLock::new( (0, 2, 3, 4) ));

let count_thread = 5;
let mut wait_all = Vec::with_capacity(count_thread);

for _a in 0..count_thread {
    wait_all.push({
        thread::spawn( enclose!((v, v2) move || {
            let mut v_lock = match v.lock() {
                Ok(a) => a,
                Err(e) => e.into_inner(),
            };
            *v_lock += 1;

            drop( v2 ); //ignore warning
        }))
    });
}
for a in wait_all {
    a.join().unwrap();
}
{	
    //Test result
    let v_lock = match v.lock() {
        Ok(a) => a,
        Err(e) => e.into_inner(),
    };
    assert_eq!(*v_lock, 5);
}

Macros

enc	Macro for cloning values to close. Alternative short record.
enclose	Macro for cloning values to close.