diff options
Diffstat (limited to 'src/test/ui/traits/inductive-overflow/supertrait-auto-trait.rs')
-rw-r--r-- | src/test/ui/traits/inductive-overflow/supertrait-auto-trait.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/traits/inductive-overflow/supertrait-auto-trait.rs b/src/test/ui/traits/inductive-overflow/supertrait-auto-trait.rs new file mode 100644 index 000000000..5fea47a1b --- /dev/null +++ b/src/test/ui/traits/inductive-overflow/supertrait-auto-trait.rs @@ -0,0 +1,18 @@ +// Auto-trait-based version of #29859, supertrait version. Test that using +// a simple auto trait `..` impl alone still doesn't allow arbitrary bounds +// to be synthesized. + +#![feature(auto_traits)] +#![feature(negative_impls)] + +auto trait Magic: Copy {} //~ ERROR E0568 + +fn copy<T: Magic>(x: T) -> (T, T) { (x, x) } + +#[derive(Debug)] +struct NoClone; + +fn main() { + let (a, b) = copy(NoClone); //~ ERROR + println!("{:?} {:?}", a, b); +} |