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bless tests
yay, I fixed the bug/missing feature :')
This commit is contained in:
Waffle Lapkin
parent
b62d58f541
commit
80157a560f
@ -10,16 +10,12 @@ struct X<T: ?Sized>(T);
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fn unwrap(a: *const W<dyn A>) -> *const (dyn A + Send) {
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a as _
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//~^ error
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//~| error
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//~| error
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//~^ error: cannot add auto trait `Send` to dyn bound via pointer cast
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}
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fn unwrap_nested(a: *const W<W<dyn A>>) -> *const W<dyn A + Send> {
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a as _
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//~^ error
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//~| error
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//~| error
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//~^ error: cannot add auto trait `Send` to dyn bound via pointer cast
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}
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fn rewrap(a: *const W<dyn A>) -> *const X<dyn A + Send> {
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@ -1,87 +1,5 @@
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error[E0277]: the trait bound `W<(dyn A + 'static)>: A` is not satisfied
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:12:5
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LL | a as _
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| ^ the trait `A` is not implemented for `W<(dyn A + 'static)>`
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help: this trait has no implementations, consider adding one
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:6:1
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LL | trait A {}
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| ^^^^^^^
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= note: required for the cast from `*const W<(dyn A + 'static)>` to `*const dyn A + Send`
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error[E0277]: `(dyn A + 'static)` cannot be sent between threads safely
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:12:5
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LL | a as _
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| ^ `(dyn A + 'static)` cannot be sent between threads safely
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= help: within `W<(dyn A + 'static)>`, the trait `Send` is not implemented for `(dyn A + 'static)`
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note: required because it appears within the type `W<(dyn A + 'static)>`
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:8:8
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LL | struct W<T: ?Sized>(T);
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| ^
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= note: required for the cast from `*const W<(dyn A + 'static)>` to `*const dyn A + Send`
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error[E0277]: the size for values of type `(dyn A + 'static)` cannot be known at compilation time
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:12:5
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LL | a as _
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| ^ doesn't have a size known at compile-time
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= help: within `W<(dyn A + 'static)>`, the trait `Sized` is not implemented for `(dyn A + 'static)`
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note: required because it appears within the type `W<(dyn A + 'static)>`
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:8:8
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LL | struct W<T: ?Sized>(T);
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| ^
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= note: required for the cast from `*const W<(dyn A + 'static)>` to `*const dyn A + Send`
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error[E0277]: the trait bound `W<(dyn A + 'static)>: A` is not satisfied
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:19:5
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LL | a as _
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| ^ the trait `A` is not implemented for `W<(dyn A + 'static)>`
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help: this trait has no implementations, consider adding one
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:6:1
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LL | trait A {}
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| ^^^^^^^
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= note: required for the cast from `*const W<W<(dyn A + 'static)>>` to `*const W<dyn A + Send>`
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error[E0277]: `(dyn A + 'static)` cannot be sent between threads safely
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:19:5
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LL | a as _
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| ^ `(dyn A + 'static)` cannot be sent between threads safely
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= help: within `W<(dyn A + 'static)>`, the trait `Send` is not implemented for `(dyn A + 'static)`
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note: required because it appears within the type `W<(dyn A + 'static)>`
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:8:8
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LL | struct W<T: ?Sized>(T);
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| ^
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= note: required for the cast from `*const W<W<(dyn A + 'static)>>` to `*const W<dyn A + Send>`
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error[E0277]: the size for values of type `(dyn A + 'static)` cannot be known at compilation time
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:19:5
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LL | a as _
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| ^ doesn't have a size known at compile-time
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= help: within `W<(dyn A + 'static)>`, the trait `Sized` is not implemented for `(dyn A + 'static)`
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note: required because it appears within the type `W<(dyn A + 'static)>`
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:8:8
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LL | struct W<T: ?Sized>(T);
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| ^
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= note: required for the cast from `*const W<W<(dyn A + 'static)>>` to `*const W<dyn A + Send>`
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error[E0804]: cannot add auto trait `Send` to dyn bound via pointer cast
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:26:5
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:12:5
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LL | a as _
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| ^^^^^^ unsupported cast
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@ -90,7 +8,7 @@ LL | a as _
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= help: use `transmute` if you're sure this is sound
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error[E0804]: cannot add auto trait `Send` to dyn bound via pointer cast
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:31:5
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:17:5
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LL | a as _
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| ^^^^^^ unsupported cast
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@ -99,7 +17,7 @@ LL | a as _
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= help: use `transmute` if you're sure this is sound
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error[E0804]: cannot add auto trait `Send` to dyn bound via pointer cast
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:36:5
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:22:5
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LL | a as _
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| ^^^^^^ unsupported cast
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@ -107,7 +25,24 @@ LL | a as _
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= note: this could allow UB elsewhere
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= help: use `transmute` if you're sure this is sound
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error: aborting due to 9 previous errors
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error[E0804]: cannot add auto trait `Send` to dyn bound via pointer cast
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:27:5
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LL | a as _
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| ^^^^^^ unsupported cast
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= note: this could allow UB elsewhere
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= help: use `transmute` if you're sure this is sound
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Some errors have detailed explanations: E0277, E0804.
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For more information about an error, try `rustc --explain E0277`.
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error[E0804]: cannot add auto trait `Send` to dyn bound via pointer cast
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--> $DIR/ptr-to-trait-obj-wrap-add-auto.rs:32:5
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LL | a as _
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| ^^^^^^ unsupported cast
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= note: this could allow UB elsewhere
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= help: use `transmute` if you're sure this is sound
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error: aborting due to 5 previous errors
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For more information about this error, try `rustc --explain E0804`.
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@ -10,14 +10,12 @@ struct X<T: ?Sized>(T);
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fn unwrap<F, G>(a: *const W<dyn A<F>>) -> *const dyn A<G> {
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a as _
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//~^ error
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//~| error
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//~^ error casting `*const W<(dyn A<F> + 'static)>` as `*const dyn A<G>` is invalid
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}
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fn unwrap_nested<F, G>(a: *const W<W<dyn A<F>>>) -> *const W<dyn A<G>> {
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a as _
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//~^ error
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//~| error
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//~^ error casting `*const W<W<(dyn A<F> + 'static)>>` as `*const W<dyn A<G>>` is invalid
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}
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fn rewrap<F, G>(a: *const W<dyn A<F>>) -> *const X<dyn A<G>> {
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@ -1,59 +1,21 @@
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error[E0277]: the trait bound `W<(dyn A<F> + 'static)>: A<G>` is not satisfied
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error[E0606]: casting `*const W<(dyn A<F> + 'static)>` as `*const dyn A<G>` is invalid
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:12:5
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LL | a as _
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| ^ the trait `A<G>` is not implemented for `W<(dyn A<F> + 'static)>`
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| ^^^^^^
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help: this trait has no implementations, consider adding one
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:6:1
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LL | trait A<T> {}
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| ^^^^^^^^^^
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= note: required for the cast from `*const W<(dyn A<F> + 'static)>` to `*const dyn A<G>`
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= note: the trait objects may have different vtables
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error[E0277]: the size for values of type `(dyn A<F> + 'static)` cannot be known at compilation time
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:12:5
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error[E0606]: casting `*const W<W<(dyn A<F> + 'static)>>` as `*const W<dyn A<G>>` is invalid
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:17:5
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LL | a as _
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| ^ doesn't have a size known at compile-time
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| ^^^^^^
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= help: within `W<(dyn A<F> + 'static)>`, the trait `Sized` is not implemented for `(dyn A<F> + 'static)`
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note: required because it appears within the type `W<(dyn A<F> + 'static)>`
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:8:8
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LL | struct W<T: ?Sized>(T);
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| ^
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= note: required for the cast from `*const W<(dyn A<F> + 'static)>` to `*const dyn A<G>`
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error[E0277]: the trait bound `W<(dyn A<F> + 'static)>: A<G>` is not satisfied
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:18:5
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LL | a as _
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| ^ the trait `A<G>` is not implemented for `W<(dyn A<F> + 'static)>`
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help: this trait has no implementations, consider adding one
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:6:1
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LL | trait A<T> {}
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| ^^^^^^^^^^
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= note: required for the cast from `*const W<W<(dyn A<F> + 'static)>>` to `*const W<dyn A<G>>`
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error[E0277]: the size for values of type `(dyn A<F> + 'static)` cannot be known at compilation time
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:18:5
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LL | a as _
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| ^ doesn't have a size known at compile-time
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= help: within `W<(dyn A<F> + 'static)>`, the trait `Sized` is not implemented for `(dyn A<F> + 'static)`
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note: required because it appears within the type `W<(dyn A<F> + 'static)>`
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:8:8
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LL | struct W<T: ?Sized>(T);
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| ^
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= note: required for the cast from `*const W<W<(dyn A<F> + 'static)>>` to `*const W<dyn A<G>>`
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= note: the trait objects may have different vtables
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error[E0606]: casting `*const W<(dyn A<F> + 'static)>` as `*const X<dyn A<G>>` is invalid
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:24:5
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:22:5
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LL | a as _
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| ^^^^^^
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@ -61,7 +23,7 @@ LL | a as _
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= note: the trait objects may have different vtables
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error[E0606]: casting `*const W<W<(dyn A<F> + 'static)>>` as `*const W<X<dyn A<G>>>` is invalid
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:29:5
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:27:5
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LL | a as _
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| ^^^^^^
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@ -69,14 +31,13 @@ LL | a as _
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= note: the trait objects may have different vtables
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error[E0606]: casting `*const (dyn A<F> + 'static)` as `*const W<dyn A<G>>` is invalid
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:34:5
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--> $DIR/ptr-to-trait-obj-wrap-different-args.rs:32:5
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LL | a as _
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| ^^^^^^
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= note: the trait objects may have different vtables
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error: aborting due to 7 previous errors
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error: aborting due to 5 previous errors
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Some errors have detailed explanations: E0277, E0606.
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For more information about an error, try `rustc --explain E0277`.
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For more information about this error, try `rustc --explain E0606`.
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@ -1,56 +1,56 @@
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error[E0277]: the trait bound `W<(dyn A<'a> + 'static)>: A<'b>` is not satisfied
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error: lifetime may not live long enough
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:12:5
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LL | fn unwrap<'a, 'b>(a: *const W<dyn A<'a>>) -> *const dyn A<'b> {
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| -- -- lifetime `'b` defined here
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| |
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| lifetime `'a` defined here
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LL | a as _
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| ^ the trait `A<'b>` is not implemented for `W<(dyn A<'a> + 'static)>`
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| ^^^^^^ function was supposed to return data with lifetime `'a` but it is returning data with lifetime `'b`
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help: this trait has no implementations, consider adding one
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:6:1
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LL | trait A<'a> {}
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| ^^^^^^^^^^^
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= note: required for the cast from `*const W<(dyn A<'a> + 'static)>` to `*const dyn A<'b>`
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= help: consider adding the following bound: `'b: 'a`
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error[E0277]: the size for values of type `(dyn A<'a> + 'static)` cannot be known at compilation time
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error: lifetime may not live long enough
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:12:5
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LL | fn unwrap<'a, 'b>(a: *const W<dyn A<'a>>) -> *const dyn A<'b> {
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| -- -- lifetime `'b` defined here
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| |
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| lifetime `'a` defined here
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LL | a as _
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| ^ doesn't have a size known at compile-time
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| ^^^^^^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a`
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|
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= help: within `W<(dyn A<'a> + 'static)>`, the trait `Sized` is not implemented for `(dyn A<'a> + 'static)`
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note: required because it appears within the type `W<(dyn A<'a> + 'static)>`
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:8:8
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LL | struct W<T: ?Sized>(T);
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| ^
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= note: required for the cast from `*const W<(dyn A<'a> + 'static)>` to `*const dyn A<'b>`
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= help: consider adding the following bound: `'a: 'b`
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error[E0277]: the trait bound `W<(dyn A<'a> + 'static)>: A<'b>` is not satisfied
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help: `'b` and `'a` must be the same: replace one with the other
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error: lifetime may not live long enough
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:18:5
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|
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LL | fn unwrap_nested<'a, 'b>(a: *const W<W<dyn A<'a>>>) -> *const W<dyn A<'b>> {
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| -- -- lifetime `'b` defined here
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| |
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| lifetime `'a` defined here
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LL | a as _
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| ^ the trait `A<'b>` is not implemented for `W<(dyn A<'a> + 'static)>`
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| ^^^^^^ function was supposed to return data with lifetime `'a` but it is returning data with lifetime `'b`
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help: this trait has no implementations, consider adding one
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:6:1
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|
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LL | trait A<'a> {}
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| ^^^^^^^^^^^
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= note: required for the cast from `*const W<W<(dyn A<'a> + 'static)>>` to `*const W<dyn A<'b>>`
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= help: consider adding the following bound: `'b: 'a`
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error[E0277]: the size for values of type `(dyn A<'a> + 'static)` cannot be known at compilation time
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error: lifetime may not live long enough
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:18:5
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|
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LL | fn unwrap_nested<'a, 'b>(a: *const W<W<dyn A<'a>>>) -> *const W<dyn A<'b>> {
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| -- -- lifetime `'b` defined here
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| |
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| lifetime `'a` defined here
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LL | a as _
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| ^ doesn't have a size known at compile-time
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| ^^^^^^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a`
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|
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= help: within `W<(dyn A<'a> + 'static)>`, the trait `Sized` is not implemented for `(dyn A<'a> + 'static)`
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note: required because it appears within the type `W<(dyn A<'a> + 'static)>`
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:8:8
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= help: consider adding the following bound: `'a: 'b`
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help: `'b` and `'a` must be the same: replace one with the other
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LL | struct W<T: ?Sized>(T);
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| ^
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= note: required for the cast from `*const W<W<(dyn A<'a> + 'static)>>` to `*const W<dyn A<'b>>`
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= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
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error: lifetime may not live long enough
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:24:5
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@ -77,6 +77,8 @@ LL | a as _
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= help: consider adding the following bound: `'a: 'b`
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help: `'b` and `'a` must be the same: replace one with the other
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= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
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error: lifetime may not live long enough
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--> $DIR/ptr-to-trait-obj-wrap-different-regions.rs:30:5
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@ -136,4 +138,3 @@ help: `'b` and `'a` must be the same: replace one with the other
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||||
|
||||
error: aborting due to 10 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0277`.
|
||||
|
||||
@ -3,6 +3,7 @@
|
||||
// structure, so these casts *are* fine.
|
||||
//
|
||||
// `unwrap` and `unwrap_nested` currently don't work due to a compiler limitation.
|
||||
//@ check-pass
|
||||
|
||||
trait A {}
|
||||
|
||||
@ -11,14 +12,10 @@ struct X<T: ?Sized>(T);
|
||||
|
||||
fn unwrap(a: *const W<dyn A>) -> *const dyn A {
|
||||
a as _
|
||||
//~^ error
|
||||
//~| error
|
||||
}
|
||||
|
||||
fn unwrap_nested(a: *const W<W<dyn A>>) -> *const W<dyn A> {
|
||||
a as _
|
||||
//~^ error
|
||||
//~| error
|
||||
}
|
||||
|
||||
fn rewrap(a: *const W<dyn A>) -> *const X<dyn A> {
|
||||
|
||||
@ -1,57 +0,0 @@
|
||||
error[E0277]: the trait bound `W<(dyn A + 'static)>: A` is not satisfied
|
||||
--> $DIR/ptr-to-trait-obj-wrap.rs:13:5
|
||||
|
|
||||
LL | a as _
|
||||
| ^ the trait `A` is not implemented for `W<(dyn A + 'static)>`
|
||||
|
|
||||
help: this trait has no implementations, consider adding one
|
||||
--> $DIR/ptr-to-trait-obj-wrap.rs:7:1
|
||||
|
|
||||
LL | trait A {}
|
||||
| ^^^^^^^
|
||||
= note: required for the cast from `*const W<(dyn A + 'static)>` to `*const dyn A`
|
||||
|
||||
error[E0277]: the size for values of type `(dyn A + 'static)` cannot be known at compilation time
|
||||
--> $DIR/ptr-to-trait-obj-wrap.rs:13:5
|
||||
|
|
||||
LL | a as _
|
||||
| ^ doesn't have a size known at compile-time
|
||||
|
|
||||
= help: within `W<(dyn A + 'static)>`, the trait `Sized` is not implemented for `(dyn A + 'static)`
|
||||
note: required because it appears within the type `W<(dyn A + 'static)>`
|
||||
--> $DIR/ptr-to-trait-obj-wrap.rs:9:8
|
||||
|
|
||||
LL | struct W<T: ?Sized>(T);
|
||||
| ^
|
||||
= note: required for the cast from `*const W<(dyn A + 'static)>` to `*const dyn A`
|
||||
|
||||
error[E0277]: the trait bound `W<(dyn A + 'static)>: A` is not satisfied
|
||||
--> $DIR/ptr-to-trait-obj-wrap.rs:19:5
|
||||
|
|
||||
LL | a as _
|
||||
| ^ the trait `A` is not implemented for `W<(dyn A + 'static)>`
|
||||
|
|
||||
help: this trait has no implementations, consider adding one
|
||||
--> $DIR/ptr-to-trait-obj-wrap.rs:7:1
|
||||
|
|
||||
LL | trait A {}
|
||||
| ^^^^^^^
|
||||
= note: required for the cast from `*const W<W<(dyn A + 'static)>>` to `*const W<dyn A>`
|
||||
|
||||
error[E0277]: the size for values of type `(dyn A + 'static)` cannot be known at compilation time
|
||||
--> $DIR/ptr-to-trait-obj-wrap.rs:19:5
|
||||
|
|
||||
LL | a as _
|
||||
| ^ doesn't have a size known at compile-time
|
||||
|
|
||||
= help: within `W<(dyn A + 'static)>`, the trait `Sized` is not implemented for `(dyn A + 'static)`
|
||||
note: required because it appears within the type `W<(dyn A + 'static)>`
|
||||
--> $DIR/ptr-to-trait-obj-wrap.rs:9:8
|
||||
|
|
||||
LL | struct W<T: ?Sized>(T);
|
||||
| ^
|
||||
= note: required for the cast from `*const W<W<(dyn A + 'static)>>` to `*const W<dyn A>`
|
||||
|
||||
error: aborting due to 4 previous errors
|
||||
|
||||
For more information about this error, try `rustc --explain E0277`.
|
||||
Loading…
Reference in New Issue
Block a user