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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:41 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:41 +0000
commit4f9fe856a25ab29345b90e7725509e9ee38a37be (patch)
treee4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /tests/ui/traits/new-solver/object-unsafety.rs
parentAdding upstream version 1.68.2+dfsg1. (diff)
downloadrustc-4f9fe856a25ab29345b90e7725509e9ee38a37be.tar.xz
rustc-4f9fe856a25ab29345b90e7725509e9ee38a37be.zip
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--tests/ui/traits/new-solver/object-unsafety.rs20
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/traits/new-solver/object-unsafety.rs b/tests/ui/traits/new-solver/object-unsafety.rs
new file mode 100644
index 000000000..7bdd863a7
--- /dev/null
+++ b/tests/ui/traits/new-solver/object-unsafety.rs
@@ -0,0 +1,20 @@
+// compile-flags: -Ztrait-solver=next
+
+trait Setup {
+ type From: Copy;
+}
+
+fn copy<U: Setup + ?Sized>(from: &U::From) -> U::From {
+ *from
+}
+
+pub fn copy_any<T>(t: &T) -> T {
+ copy::<dyn Setup<From=T>>(t)
+ //~^ ERROR the trait bound `dyn Setup<From = T>: Setup` is not satisfied
+}
+
+fn main() {
+ let x = String::from("Hello, world");
+ let y = copy_any(&x);
+ println!("{y}");
+}