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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:11:38 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:12:43 +0000
commitcf94bdc0742c13e2a0cac864c478b8626b266e1b (patch)
tree044670aa50cc5e2b4229aa0b6b3df6676730c0a6 /src/test/ui/object-safety/object-safety-supertrait-mentions-GAT.stderr
parentAdding debian version 1.65.0+dfsg1-2. (diff)
downloadrustc-cf94bdc0742c13e2a0cac864c478b8626b266e1b.tar.xz
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Merging upstream version 1.66.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+error[E0311]: the parameter type `Self` may not live long enough
+ |
+ = help: consider adding an explicit lifetime bound `Self: 'a`...
+ = note: ...so that the type `Self` will meet its required lifetime bounds...
+note: ...that is required by this bound
+ --> $DIR/object-safety-supertrait-mentions-GAT.rs:9:39
+ |
+LL | trait SuperTrait<T>: for<'a> GatTrait<Gat<'a> = T> {
+ | ^^^^^^^^^^^
+
+error: associated item referring to unboxed trait object for its own trait
+ --> $DIR/object-safety-supertrait-mentions-GAT.rs:10:20
+ |
+LL | trait SuperTrait<T>: for<'a> GatTrait<Gat<'a> = T> {
+ | ---------- in this trait
+LL | fn c(&self) -> dyn SuperTrait<T>;
+ | ^^^^^^^^^^^^^^^^^
+ |
+help: you might have meant to use `Self` to refer to the implementing type
+ |
+LL | fn c(&self) -> Self;
+ | ~~~~
+
+error[E0038]: the trait `SuperTrait` cannot be made into an object
+ --> $DIR/object-safety-supertrait-mentions-GAT.rs:10:20
+ |
+LL | fn c(&self) -> dyn SuperTrait<T>;
+ | ^^^^^^^^^^^^^^^^^ `SuperTrait` 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-supertrait-mentions-GAT.rs:4:10
+ |
+LL | type Gat<'a>
+ | ^^^ ...because it contains the generic associated type `Gat`
+...
+LL | trait SuperTrait<T>: for<'a> GatTrait<Gat<'a> = T> {
+ | ---------- this trait cannot be made into an object...
+ = help: consider moving `Gat` to another trait
+
+error: aborting due to 3 previous errors
+
+Some errors have detailed explanations: E0038, E0311.
+For more information about an error, try `rustc --explain E0038`.