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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/type-alias-impl-trait/issue-60564.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/type-alias-impl-trait/issue-60564.rs')
-rw-r--r-- | tests/ui/type-alias-impl-trait/issue-60564.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/type-alias-impl-trait/issue-60564.rs b/tests/ui/type-alias-impl-trait/issue-60564.rs new file mode 100644 index 000000000..c2f4c3708 --- /dev/null +++ b/tests/ui/type-alias-impl-trait/issue-60564.rs @@ -0,0 +1,25 @@ +#![feature(type_alias_impl_trait)] + +trait IterBits { + type BitsIter: Iterator<Item = u8>; + fn iter_bits(self, n: u8) -> Self::BitsIter; +} + +type IterBitsIter<T, E, I> = impl std::iter::Iterator<Item = I>; + +impl<T: Copy, E> IterBits for T +where + T: std::ops::Shr<Output = T> + + std::ops::BitAnd<T, Output = T> + + std::convert::From<u8> + + std::convert::TryInto<u8, Error = E>, + E: std::fmt::Debug, +{ + type BitsIter = IterBitsIter<T, E, u8>; + fn iter_bits(self, n: u8) -> Self::BitsIter { + (0u8..n).rev().map(move |shift| ((self >> T::from(shift)) & T::from(1)).try_into().unwrap()) + //~^ ERROR expected generic type parameter, found `u8` + } +} + +fn main() {} |