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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/issues/issue-42552.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-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/issues/issue-42552.rs')
-rw-r--r-- | tests/ui/issues/issue-42552.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-42552.rs b/tests/ui/issues/issue-42552.rs new file mode 100644 index 000000000..50d28a2f0 --- /dev/null +++ b/tests/ui/issues/issue-42552.rs @@ -0,0 +1,31 @@ +// run-pass +// Regression test for an obscure issue with the projection cache. + +fn into_iter<I: Iterator>(a: &I) -> Groups<I> { + Groups { _a: a } +} + +pub struct Groups<'a, I: 'a> { + _a: &'a I, +} + +impl<'a, I: Iterator> Iterator for Groups<'a, I> { + type Item = Group<'a, I>; + fn next(&mut self) -> Option<Self::Item> { + None + } +} + +pub struct Group<'a, I: Iterator + 'a> + where I::Item: 'a // <-- needed to trigger ICE! +{ + _phantom: &'a (), + _ice_trigger: I::Item, // <-- needed to trigger ICE! +} + + +fn main() { + let _ = into_iter(&[0].iter().map(|_| 0)).map(|grp| { + let _g = grp; + }); +} |