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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-30 03:57:31 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-30 03:57:31 +0000
commitdc0db358abe19481e475e10c32149b53370f1a1c (patch)
treeab8ce99c4b255ce46f99ef402c27916055b899ee /tests/ui/uninhabited
parentReleasing progress-linux version 1.71.1+dfsg1-2~progress7.99u1. (diff)
downloadrustc-dc0db358abe19481e475e10c32149b53370f1a1c.tar.xz
rustc-dc0db358abe19481e475e10c32149b53370f1a1c.zip
Merging upstream version 1.72.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/uninhabited')
-rw-r--r--tests/ui/uninhabited/projection.rs32
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/ui/uninhabited/projection.rs b/tests/ui/uninhabited/projection.rs
new file mode 100644
index 000000000..be0d3ff7d
--- /dev/null
+++ b/tests/ui/uninhabited/projection.rs
@@ -0,0 +1,32 @@
+// check-pass
+
+#![feature(never_type, exhaustive_patterns)]
+
+trait Tag {
+ type TagType;
+}
+
+enum Keep {}
+enum Erase {}
+
+impl Tag for Keep {
+ type TagType = ();
+}
+
+impl Tag for Erase {
+ type TagType = !;
+}
+
+enum TagInt<T: Tag> {
+ Untagged(i32),
+ Tagged(T::TagType, i32)
+}
+
+fn test(keep: TagInt<Keep>, erase: TagInt<Erase>) {
+ match erase {
+ TagInt::Untagged(_) => (),
+ TagInt::Tagged(_, _) => ()
+ };
+}
+
+fn main() {}