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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
commit218caa410aa38c29984be31a5229b9fa717560ee (patch)
treec54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/unsized/param-mentioned-by-different-field.rs
parentReleasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff)
downloadrustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz
rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/unsized/param-mentioned-by-different-field.rs')
-rw-r--r--tests/ui/unsized/param-mentioned-by-different-field.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/unsized/param-mentioned-by-different-field.rs b/tests/ui/unsized/param-mentioned-by-different-field.rs
new file mode 100644
index 000000000..cda94b306
--- /dev/null
+++ b/tests/ui/unsized/param-mentioned-by-different-field.rs
@@ -0,0 +1,10 @@
+// We must not allow this with our current setup as `T`
+// is mentioned both in the tail of `Foo` and by another
+// field.
+struct Foo<T: ?Sized>(Box<T>, T);
+
+fn main() {
+ let x: Foo<[u8; 1]> = Foo(Box::new([2]), [3]);
+ let y: &Foo<[u8]> = &x; //~ ERROR mismatched types
+ assert_eq!(y.0.len(), 1);
+}