diff options
Diffstat (limited to 'tests/ui/borrowck/borrowck-unboxed-closures.rs')
-rw-r--r-- | tests/ui/borrowck/borrowck-unboxed-closures.rs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/borrowck/borrowck-unboxed-closures.rs b/tests/ui/borrowck/borrowck-unboxed-closures.rs new file mode 100644 index 000000000..f0048dd7d --- /dev/null +++ b/tests/ui/borrowck/borrowck-unboxed-closures.rs @@ -0,0 +1,17 @@ +fn a<F:Fn(isize, isize) -> isize>(mut f: F) { + let g = &mut f; + f(1, 2); //~ ERROR cannot borrow `f` as immutable + use_mut(g); +} +fn b<F:FnMut(isize, isize) -> isize>(f: F) { + f(1, 2); //~ ERROR cannot borrow `f` as mutable, as it is not declared as mutable +} + +fn c<F:FnOnce(isize, isize) -> isize>(f: F) { + f(1, 2); + f(1, 2); //~ ERROR use of moved value +} + +fn main() {} + +fn use_mut<T>(_: &mut T) { } |