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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:29 +0000 |
commit | 631cd5845e8de329d0e227aaa707d7ea228b8f8f (patch) | |
tree | a1b87c8f8cad01cf18f7c5f57a08f102771ed303 /tests/ui/traits/non_lifetime_binders/supertrait-object-safety.stderr | |
parent | Adding debian version 1.69.0+dfsg1-1. (diff) | |
download | rustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.tar.xz rustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.zip |
Merging upstream version 1.70.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/traits/non_lifetime_binders/supertrait-object-safety.stderr')
-rw-r--r-- | tests/ui/traits/non_lifetime_binders/supertrait-object-safety.stderr | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.stderr b/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.stderr new file mode 100644 index 000000000..47fa29b66 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.stderr @@ -0,0 +1,56 @@ +warning: the feature `non_lifetime_binders` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/supertrait-object-safety.rs:1:12 + | +LL | #![feature(non_lifetime_binders)] + | ^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information + = note: `#[warn(incomplete_features)]` on by default + +error[E0038]: the trait `Foo` cannot be made into an object + --> $DIR/supertrait-object-safety.rs:19:23 + | +LL | let x: &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/supertrait-object-safety.rs:4:12 + | +LL | trait Foo: for<T> Bar<T> {} + | --- ^^^^^^^^^^^^^ ...because where clause cannot reference non-lifetime `for<...>` variables + | | + | this trait cannot be made into an object... + = note: required for `&()` to implement `CoerceUnsized<&dyn Foo>` + = note: required by cast to type `&dyn Foo` + +error[E0038]: the trait `Foo` cannot be made into an object + --> $DIR/supertrait-object-safety.rs:19:12 + | +LL | let x: &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/supertrait-object-safety.rs:4:12 + | +LL | trait Foo: for<T> Bar<T> {} + | --- ^^^^^^^^^^^^^ ...because where clause cannot reference non-lifetime `for<...>` variables + | | + | this trait cannot be made into an object... + +error[E0038]: the trait `Foo` cannot be made into an object + --> $DIR/supertrait-object-safety.rs:22:5 + | +LL | needs_bar(x); + | ^^^^^^^^^ `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/supertrait-object-safety.rs:4:12 + | +LL | trait Foo: for<T> Bar<T> {} + | --- ^^^^^^^^^^^^^ ...because where clause cannot reference non-lifetime `for<...>` variables + | | + | this trait cannot be made into an object... + +error: aborting due to 3 previous errors; 1 warning emitted + +For more information about this error, try `rustc --explain E0038`. |