diff options
Diffstat (limited to '')
-rw-r--r-- | tests/ui/unboxed-closures/non-tupled-call.rs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/unboxed-closures/non-tupled-call.rs b/tests/ui/unboxed-closures/non-tupled-call.rs new file mode 100644 index 000000000..08bea4f16 --- /dev/null +++ b/tests/ui/unboxed-closures/non-tupled-call.rs @@ -0,0 +1,17 @@ +#![feature(fn_traits, unboxed_closures, tuple_trait)] + +use std::default::Default; +use std::marker::Tuple; + +fn wrap<P: Tuple + Default, T>(func: impl Fn<P, Output = T>) { + let x: P = Default::default(); + // Should be: `func.call(x);` + func(x); + //~^ ERROR cannot use call notation; the first type parameter for the function trait is neither a tuple nor unit +} + +fn foo() {} + +fn main() { + wrap(foo); +} |