diff options
Diffstat (limited to 'src/test/ui/object-safety/object-safety-bounds.stderr')
| -rw-r--r-- | src/test/ui/object-safety/object-safety-bounds.stderr | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/object-safety/object-safety-bounds.stderr b/src/test/ui/object-safety/object-safety-bounds.stderr new file mode 100644 index 000000000..89c4f8ced --- /dev/null +++ b/src/test/ui/object-safety/object-safety-bounds.stderr @@ -0,0 +1,17 @@ +error[E0038]: the trait `X` cannot be made into an object + --> $DIR/object-safety-bounds.rs:7:11 + | +LL | fn f() -> Box<dyn X<U = u32>> { + | ^^^^^^^^^^^^^^^^^^^ `X` cannot be made into an object + | +note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> + --> $DIR/object-safety-bounds.rs:4:13 + | +LL | trait X { + | - this trait cannot be made into an object... +LL | type U: PartialEq<Self>; + | ^^^^^^^^^^^^^^^ ...because it uses `Self` as a type parameter + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0038`. |