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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/wf/wf-unsafe-trait-obj-match.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/wf/wf-unsafe-trait-obj-match.rs')
-rw-r--r--tests/ui/wf/wf-unsafe-trait-obj-match.rs29
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/ui/wf/wf-unsafe-trait-obj-match.rs b/tests/ui/wf/wf-unsafe-trait-obj-match.rs
new file mode 100644
index 000000000..c8731a8ec
--- /dev/null
+++ b/tests/ui/wf/wf-unsafe-trait-obj-match.rs
@@ -0,0 +1,29 @@
+// Check that we do not allow coercions to object
+// unsafe trait objects in match arms
+
+#![feature(object_safe_for_dispatch)]
+
+trait Trait: Sized {}
+
+struct S;
+
+impl Trait for S {}
+
+struct R;
+
+impl Trait for R {}
+
+fn opt() -> Option<()> {
+ Some(())
+}
+
+fn main() {
+ match opt() {
+ Some(()) => &S,
+ None => &R, //~ ERROR E0308
+ }
+ let t: &dyn Trait = match opt() { //~ ERROR E0038
+ Some(()) => &S, //~ ERROR E0038
+ None => &R,
+ };
+}