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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/ui/issues/issue-42552.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/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; + }); +} |