diff options
Diffstat (limited to 'src/test/ui/tuple/builtin-fail.rs')
-rw-r--r-- | src/test/ui/tuple/builtin-fail.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/tuple/builtin-fail.rs b/src/test/ui/tuple/builtin-fail.rs new file mode 100644 index 000000000..312080961 --- /dev/null +++ b/src/test/ui/tuple/builtin-fail.rs @@ -0,0 +1,19 @@ +#![feature(tuple_trait)] + +fn assert_is_tuple<T: std::marker::Tuple + ?Sized>() {} + +struct TupleStruct(i32, i32); + +fn from_param_env<T>() { + assert_is_tuple::<T>(); + //~^ ERROR `T` is not a tuple +} + +fn main() { + assert_is_tuple::<i32>(); + //~^ ERROR `i32` is not a tuple + assert_is_tuple::<(i32)>(); + //~^ ERROR `i32` is not a tuple + assert_is_tuple::<TupleStruct>(); + //~^ ERROR `TupleStruct` is not a tuple +} |