Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 65 insertions, 0 deletions

diff --git a/tests/ui/suggestions/object-unsafe-trait-should-use-self.stderr b/tests/ui/suggestions/object-unsafe-trait-should-use-self.stderr
new file mode 100644
index 000000000..55047b426
--- /dev/null
+++ b/tests/ui/suggestions/object-unsafe-trait-should-use-self.stderr
@@ -0,0 +1,65 @@
+error: associated item referring to unboxed trait object for its own trait
+  --> $DIR/object-unsafe-trait-should-use-self.rs:3:13
+   |
+LL | trait A: Sized {
+   |       - in this trait
+LL |     fn f(a: A) -> A;
+   |             ^     ^
+   |
+help: you might have meant to use `Self` to refer to the implementing type
+   |
+LL |     fn f(a: Self) -> Self;
+   |             ~~~~     ~~~~
+
+error[E0038]: the trait `A` cannot be made into an object
+  --> $DIR/object-unsafe-trait-should-use-self.rs:3:13
+   |
+LL |     fn f(a: A) -> A;
+   |             ^ `A` 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-self.rs:2:10
+   |
+LL | trait A: Sized {
+   |       -  ^^^^^ ...because it requires `Self: Sized`
+   |       |
+   |       this trait cannot be made into an object...
+
+error: associated item referring to unboxed trait object for its own trait
+  --> $DIR/object-unsafe-trait-should-use-self.rs:8:13
+   |
+LL | trait B {
+   |       - in this trait
+LL |     fn f(a: B) -> B;
+   |             ^     ^
+   |
+help: you might have meant to use `Self` to refer to the implementing type
+   |
+LL |     fn f(a: Self) -> Self;
+   |             ~~~~     ~~~~
+
+error[E0038]: the trait `B` cannot be made into an object
+  --> $DIR/object-unsafe-trait-should-use-self.rs:8:13
+   |
+LL |     fn f(a: B) -> B;
+   |             ^ `B` 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-self.rs:8:8
+   |
+LL | trait B {
+   |       - this trait cannot be made into an object...
+LL |     fn f(a: B) -> B;
+   |        ^ ...because associated function `f` has no `self` parameter
+help: consider turning `f` into a method by giving it a `&self` argument
+   |
+LL |     fn f(&self, a: B) -> B;
+   |          ++++++
+help: alternatively, consider constraining `f` so it does not apply to trait objects
+   |
+LL |     fn f(a: B) -> B where Self: Sized;
+   |                     +++++++++++++++++
+
+error: aborting due to 4 previous errors
+
+For more information about this error, try `rustc --explain E0038`.