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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/dst/dst-object-from-unsized-type.stderr | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/dst/dst-object-from-unsized-type.stderr')
-rw-r--r-- | src/test/ui/dst/dst-object-from-unsized-type.stderr | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/test/ui/dst/dst-object-from-unsized-type.stderr b/src/test/ui/dst/dst-object-from-unsized-type.stderr new file mode 100644 index 000000000..e24c96ebe --- /dev/null +++ b/src/test/ui/dst/dst-object-from-unsized-type.stderr @@ -0,0 +1,51 @@ +error[E0277]: the size for values of type `T` cannot be known at compilation time + --> $DIR/dst-object-from-unsized-type.rs:8:23 + | +LL | fn test1<T: ?Sized + Foo>(t: &T) { + | - this type parameter needs to be `std::marker::Sized` +LL | let u: &dyn Foo = t; + | ^ doesn't have a size known at compile-time + | + = note: required for the cast from `T` to the object type `dyn Foo` +help: consider removing the `?Sized` bound to make the type parameter `Sized` + | +LL - fn test1<T: ?Sized + Foo>(t: &T) { +LL + fn test1<T: Foo>(t: &T) { + | + +error[E0277]: the size for values of type `T` cannot be known at compilation time + --> $DIR/dst-object-from-unsized-type.rs:13:23 + | +LL | fn test2<T: ?Sized + Foo>(t: &T) { + | - this type parameter needs to be `std::marker::Sized` +LL | let v: &dyn Foo = t as &dyn Foo; + | ^ doesn't have a size known at compile-time + | + = note: required for the cast from `T` to the object type `dyn Foo` +help: consider removing the `?Sized` bound to make the type parameter `Sized` + | +LL - fn test2<T: ?Sized + Foo>(t: &T) { +LL + fn test2<T: Foo>(t: &T) { + | + +error[E0277]: the size for values of type `str` cannot be known at compilation time + --> $DIR/dst-object-from-unsized-type.rs:18:28 + | +LL | let _: &[&dyn Foo] = &["hi"]; + | ^^^^ doesn't have a size known at compile-time + | + = help: the trait `Sized` is not implemented for `str` + = note: required for the cast from `str` to the object type `dyn Foo` + +error[E0277]: the size for values of type `[u8]` cannot be known at compilation time + --> $DIR/dst-object-from-unsized-type.rs:23:23 + | +LL | let _: &dyn Foo = x as &dyn Foo; + | ^ doesn't have a size known at compile-time + | + = help: the trait `Sized` is not implemented for `[u8]` + = note: required for the cast from `[u8]` to the object type `dyn Foo` + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0277`. |