diff options
Diffstat (limited to 'src/test/ui/unboxed-closures/unboxed-closures-boxed.rs')
-rw-r--r-- | src/test/ui/unboxed-closures/unboxed-closures-boxed.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/unboxed-closures/unboxed-closures-boxed.rs b/src/test/ui/unboxed-closures/unboxed-closures-boxed.rs new file mode 100644 index 000000000..3f550fd04 --- /dev/null +++ b/src/test/ui/unboxed-closures/unboxed-closures-boxed.rs @@ -0,0 +1,15 @@ +// run-pass + +use std::ops::FnMut; + + fn make_adder(x: i32) -> Box<dyn FnMut(i32)->i32+'static> { + Box::new(move |y: i32| -> i32 { x + y }) as + Box<dyn FnMut(i32)->i32+'static> +} + +pub fn main() { + let mut adder = make_adder(3); + let z = adder(2); + println!("{}", z); + assert_eq!(z, 5); +} |