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Diffstat (limited to 'tests/ui/kindck/kindck-inherited-copy-bound.object_safe_for_dispatch.stderr')
-rw-r--r-- | tests/ui/kindck/kindck-inherited-copy-bound.object_safe_for_dispatch.stderr | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tests/ui/kindck/kindck-inherited-copy-bound.object_safe_for_dispatch.stderr b/tests/ui/kindck/kindck-inherited-copy-bound.object_safe_for_dispatch.stderr new file mode 100644 index 000000000..2fbb5a98a --- /dev/null +++ b/tests/ui/kindck/kindck-inherited-copy-bound.object_safe_for_dispatch.stderr @@ -0,0 +1,41 @@ +error[E0277]: the trait bound `Box<{integer}>: Copy` is not satisfied + --> $DIR/kindck-inherited-copy-bound.rs:21:16 + | +LL | take_param(&x); + | ---------- ^^ the trait `Copy` is not implemented for `Box<{integer}>` + | | + | required by a bound introduced by this call + | +note: required for `Box<{integer}>` to implement `Foo` + --> $DIR/kindck-inherited-copy-bound.rs:14:14 + | +LL | impl<T:Copy> Foo for T { + | ---- ^^^ ^ + | | + | unsatisfied trait bound introduced here +note: required by a bound in `take_param` + --> $DIR/kindck-inherited-copy-bound.rs:17:17 + | +LL | fn take_param<T:Foo>(foo: &T) { } + | ^^^ required by this bound in `take_param` + +error[E0038]: the trait `Foo` cannot be made into an object + --> $DIR/kindck-inherited-copy-bound.rs:28:13 + | +LL | let z = &x as &dyn Foo; + | ^^ `Foo` 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/kindck-inherited-copy-bound.rs:10:13 + | +LL | trait Foo : Copy { + | --- ^^^^ ...because it requires `Self: Sized` + | | + | this trait cannot be made into an object... + = note: required for `&Box<i32>` to implement `CoerceUnsized<&dyn Foo>` + = note: required by cast to type `&dyn Foo` + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0038, E0277. +For more information about an error, try `rustc --explain E0038`. |