1 // run-pass
2 // Ensures that single-word environments work right in unboxed closures.
3 // These take a different path in codegen.
4
a<F:Fn(isize, isize) -> isize>(f: F) -> isize5 fn a<F:Fn(isize, isize) -> isize>(f: F) -> isize {
6 f(1, 2)
7 }
8
b<F:FnMut(isize, isize) -> isize>(mut f: F) -> isize9 fn b<F:FnMut(isize, isize) -> isize>(mut f: F) -> isize {
10 f(3, 4)
11 }
12
c<F:FnOnce(isize, isize) -> isize>(f: F) -> isize13 fn c<F:FnOnce(isize, isize) -> isize>(f: F) -> isize {
14 f(5, 6)
15 }
16
main()17 fn main() {
18 let z = 10;
19 assert_eq!(a(move |x: isize, y| x + y + z), 13);
20 assert_eq!(b(move |x: isize, y| x + y + z), 17);
21 assert_eq!(c(move |x: isize, y| x + y + z), 21);
22 }
23