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Diffstat (limited to 'tests/ui/generic-associated-types/issue-79422.base.stderr')
-rw-r--r-- | tests/ui/generic-associated-types/issue-79422.base.stderr | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/tests/ui/generic-associated-types/issue-79422.base.stderr b/tests/ui/generic-associated-types/issue-79422.base.stderr new file mode 100644 index 000000000..f1de77bc3 --- /dev/null +++ b/tests/ui/generic-associated-types/issue-79422.base.stderr @@ -0,0 +1,52 @@ +error[E0107]: missing generics for associated type `MapLike::VRefCont` + --> $DIR/issue-79422.rs:47:36 + | +LL | as Box<dyn MapLike<u8, u8, VRefCont = dyn RefCont<'_, u8>>>; + | ^^^^^^^^ expected 1 lifetime argument + | +note: associated type defined here, with 1 lifetime parameter: `'a` + --> $DIR/issue-79422.rs:23:10 + | +LL | type VRefCont<'a>: RefCont<'a, V> where Self: 'a; + | ^^^^^^^^ -- +help: add missing lifetime argument + | +LL | as Box<dyn MapLike<u8, u8, VRefCont<'a> = dyn RefCont<'_, u8>>>; + | ++++ + +error[E0038]: the trait `MapLike` cannot be made into an object + --> $DIR/issue-79422.rs:47:12 + | +LL | as Box<dyn MapLike<u8, u8, VRefCont = dyn RefCont<'_, u8>>>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `MapLike` 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/issue-79422.rs:23:10 + | +LL | trait MapLike<K, V> { + | ------- this trait cannot be made into an object... +LL | type VRefCont<'a>: RefCont<'a, V> where Self: 'a; + | ^^^^^^^^ ...because it contains the generic associated type `VRefCont` + = help: consider moving `VRefCont` to another trait + +error[E0038]: the trait `MapLike` cannot be made into an object + --> $DIR/issue-79422.rs:44:13 + | +LL | let m = Box::new(std::collections::BTreeMap::<u8, u8>::new()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `MapLike` 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/issue-79422.rs:23:10 + | +LL | trait MapLike<K, V> { + | ------- this trait cannot be made into an object... +LL | type VRefCont<'a>: RefCont<'a, V> where Self: 'a; + | ^^^^^^^^ ...because it contains the generic associated type `VRefCont` + = help: consider moving `VRefCont` to another trait + = note: required for `Box<BTreeMap<u8, u8>>` to implement `CoerceUnsized<Box<dyn MapLike<u8, u8, VRefCont = (dyn RefCont<'_, u8> + 'static)>>>` + = note: required by cast to type `Box<dyn MapLike<u8, u8, VRefCont = (dyn RefCont<'_, u8> + 'static)>>` + +error: aborting due to 3 previous errors + +Some errors have detailed explanations: E0038, E0107. +For more information about an error, try `rustc --explain E0038`. |