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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:57:31 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:57:31 +0000 |
commit | dc0db358abe19481e475e10c32149b53370f1a1c (patch) | |
tree | ab8ce99c4b255ce46f99ef402c27916055b899ee /tests/ui/uninhabited | |
parent | Releasing progress-linux version 1.71.1+dfsg1-2~progress7.99u1. (diff) | |
download | rustc-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.rs | 32 |
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() {} |