diff options
Diffstat (limited to 'tests/ui/traits/non_lifetime_binders')
10 files changed, 204 insertions, 0 deletions
diff --git a/tests/ui/traits/non_lifetime_binders/bad-copy-cond.rs b/tests/ui/traits/non_lifetime_binders/bad-copy-cond.rs new file mode 100644 index 000000000..506cad25f --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/bad-copy-cond.rs @@ -0,0 +1,9 @@ +#![feature(non_lifetime_binders)] +//~^ WARN the feature `non_lifetime_binders` is incomplete + +fn foo() where for<T> T: Copy {} + +fn main() { + foo(); + //~^ ERROR the trait bound `T: Copy` is not satisfied +} diff --git a/tests/ui/traits/non_lifetime_binders/bad-copy-cond.stderr b/tests/ui/traits/non_lifetime_binders/bad-copy-cond.stderr new file mode 100644 index 000000000..07e02d47f --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/bad-copy-cond.stderr @@ -0,0 +1,24 @@ +warning: the feature `non_lifetime_binders` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/bad-copy-cond.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[E0277]: the trait bound `T: Copy` is not satisfied + --> $DIR/bad-copy-cond.rs:7:5 + | +LL | foo(); + | ^^^ the trait `Copy` is not implemented for `T` + | +note: required by a bound in `foo` + --> $DIR/bad-copy-cond.rs:4:26 + | +LL | fn foo() where for<T> T: Copy {} + | ^^^^ required by this bound in `foo` + +error: aborting due to previous error; 1 warning emitted + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/traits/non_lifetime_binders/capture-late-ct-in-anon.rs b/tests/ui/traits/non_lifetime_binders/capture-late-ct-in-anon.rs new file mode 100644 index 000000000..91c6dfb8e --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/capture-late-ct-in-anon.rs @@ -0,0 +1,11 @@ +#![feature(non_lifetime_binders)] +//~^ WARN the feature `non_lifetime_binders` is incomplete + +fn b() +where + for<const C: usize> [(); C]: Copy, + //~^ ERROR cannot capture late-bound const parameter in a constant +{ +} + +fn main() {} diff --git a/tests/ui/traits/non_lifetime_binders/capture-late-ct-in-anon.stderr b/tests/ui/traits/non_lifetime_binders/capture-late-ct-in-anon.stderr new file mode 100644 index 000000000..69bb605bf --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/capture-late-ct-in-anon.stderr @@ -0,0 +1,19 @@ +warning: the feature `non_lifetime_binders` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/capture-late-ct-in-anon.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: cannot capture late-bound const parameter in a constant + --> $DIR/capture-late-ct-in-anon.rs:6:30 + | +LL | for<const C: usize> [(); C]: Copy, + | -------------- ^ + | | + | parameter defined here + +error: aborting due to previous error; 1 warning emitted + diff --git a/tests/ui/traits/non_lifetime_binders/method-probe.rs b/tests/ui/traits/non_lifetime_binders/method-probe.rs new file mode 100644 index 000000000..8df240c20 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/method-probe.rs @@ -0,0 +1,16 @@ +// check-pass + +#![feature(non_lifetime_binders)] +//~^ WARN the feature `non_lifetime_binders` is incomplete + +trait Foo: for<T> Bar<T> {} + +trait Bar<T> { + fn method() -> T; +} + +fn x<T: Foo>() { + let _: i32 = T::method(); +} + +fn main() {} diff --git a/tests/ui/traits/non_lifetime_binders/method-probe.stderr b/tests/ui/traits/non_lifetime_binders/method-probe.stderr new file mode 100644 index 000000000..8f61792e6 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/method-probe.stderr @@ -0,0 +1,11 @@ +warning: the feature `non_lifetime_binders` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/method-probe.rs:3:12 + | +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 + +warning: 1 warning emitted + diff --git a/tests/ui/traits/non_lifetime_binders/missing-assoc-item.rs b/tests/ui/traits/non_lifetime_binders/missing-assoc-item.rs new file mode 100644 index 000000000..50f0152e9 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/missing-assoc-item.rs @@ -0,0 +1,11 @@ +#![feature(non_lifetime_binders)] +//~^ WARN the feature `non_lifetime_binders` is incomplete + +fn f() +where + for<B> B::Item: Send, + //~^ ERROR ambiguous associated type +{ +} + +fn main() {} diff --git a/tests/ui/traits/non_lifetime_binders/missing-assoc-item.stderr b/tests/ui/traits/non_lifetime_binders/missing-assoc-item.stderr new file mode 100644 index 000000000..d98538642 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/missing-assoc-item.stderr @@ -0,0 +1,23 @@ +warning: the feature `non_lifetime_binders` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/missing-assoc-item.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[E0223]: ambiguous associated type + --> $DIR/missing-assoc-item.rs:6:12 + | +LL | for<B> B::Item: Send, + | ^^^^^^^ + | +help: if there were a trait named `Example` with associated type `Item` implemented for `B`, you could use the fully-qualified path + | +LL | for<B> <B as Example>::Item: Send, + | ~~~~~~~~~~~~~~~~~~~~ + +error: aborting due to previous error; 1 warning emitted + +For more information about this error, try `rustc --explain E0223`. diff --git a/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.rs b/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.rs new file mode 100644 index 000000000..a635edb44 --- /dev/null +++ b/tests/ui/traits/non_lifetime_binders/supertrait-object-safety.rs @@ -0,0 +1,24 @@ +#![feature(non_lifetime_binders)] +//~^ WARN the feature `non_lifetime_binders` is incomplete + +trait Foo: for<T> Bar<T> {} + +trait Bar<T: ?Sized> { + fn method(&self) {} +} + +fn needs_bar(x: &(impl Bar<i32> + ?Sized)) { + x.method(); +} + +impl Foo for () {} + +impl<T: ?Sized> Bar<T> for () {} + +fn main() { + let x: &dyn Foo = &(); + //~^ ERROR the trait `Foo` cannot be made into an object + //~| ERROR the trait `Foo` cannot be made into an object + needs_bar(x); + //~^ ERROR the trait `Foo` cannot be made into an object +} 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`. |