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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/suggestions/object-unsafe-trait-should-use-where-sized.stderr | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/suggestions/object-unsafe-trait-should-use-where-sized.stderr')
-rw-r--r-- | src/test/ui/suggestions/object-unsafe-trait-should-use-where-sized.stderr | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/test/ui/suggestions/object-unsafe-trait-should-use-where-sized.stderr b/src/test/ui/suggestions/object-unsafe-trait-should-use-where-sized.stderr new file mode 100644 index 000000000..c0dc71df0 --- /dev/null +++ b/src/test/ui/suggestions/object-unsafe-trait-should-use-where-sized.stderr @@ -0,0 +1,41 @@ +error[E0038]: the trait `Trait` cannot be made into an object + --> $DIR/object-unsafe-trait-should-use-where-sized.rs:9:12 + | +LL | fn bar(x: &dyn Trait) {} + | ^^^^^^^^^ `Trait` 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-unsafe-trait-should-use-where-sized.rs:5:8 + | +LL | trait Trait { + | ----- this trait cannot be made into an object... +LL | fn foo() where Self: Other, { } + | ^^^ ...because associated function `foo` has no `self` parameter +LL | fn bar(self: ()) {} + | ^^ ...because method `bar`'s `self` parameter cannot be dispatched on +help: consider turning `foo` into a method by giving it a `&self` argument + | +LL | fn foo(&self) where Self: Other, { } + | +++++ +help: alternatively, consider constraining `foo` so it does not apply to trait objects + | +LL | fn foo() where Self: Other, Self: Sized { } + | ~~~~~~~~~~~~~ +help: consider changing method `bar`'s `self` parameter to be `&self` + | +LL | fn bar(self: &Self) {} + | ~~~~~ + +error[E0307]: invalid `self` parameter type: () + --> $DIR/object-unsafe-trait-should-use-where-sized.rs:6:18 + | +LL | fn bar(self: ()) {} + | ^^ + | + = note: type of `self` must be `Self` or a type that dereferences to it + = help: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`) + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0038, E0307. +For more information about an error, try `rustc --explain E0038`. |