rust/tests/ui/unboxed-closures/unboxed-closures-call-sugar-object.rs

// run-pass
use std::ops::FnMut;

fn make_adder(x: isize) -> Box<dyn FnMut(isize)->isize + 'static> {
    Box::new(move |y| { x + y })
}

pub fn main() {
    let mut adder = make_adder(3);
    let z = (*adder)(2);
    println!("{}", z);
    assert_eq!(z, 5);
}
Add `// run-pass` annotations to all the tests under `ui/run-pass/`. (I may have accidentally added it to some auxilliary crates as well; my emacs-macro-based methodology was pretty crude.) 2018-08-30 12:18:55 +00:00			`// run-pass`
Test that we can call unboxed closures with the sugar now. Fixes #16929. 2014-12-28 21:45:56 +00:00			`use std::ops::FnMut;`

Update run-pass test suite to use dyn 2019-05-28 18:47:21 +00:00			`fn make_adder(x: isize) -> Box<dyn FnMut(isize)->isize + 'static> {`
Switched to Box::new in many places. Many of the modifications putting in `Box::new` calls also include a pointer to Issue 22405, which tracks going back to `box <expr>` if possible in the future. (Still tried to use `Box<_>` where it sufficed; thus some tests still have `box_syntax` enabled, as they use a mix of `box` and `Box::new`.) Precursor for overloaded-`box` and placement-`in`; see Issue 22181. 2015-02-15 08:52:21 +00:00			`Box::new(move \|y\| { x + y })`
Test that we can call unboxed closures with the sugar now. Fixes #16929. 2014-12-28 21:45:56 +00:00			`}`

			`pub fn main() {`
			`let mut adder = make_adder(3);`
			`let z = (*adder)(2);`
			`println!("{}", z);`
			`assert_eq!(z, 5);`
			`}`