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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs')
-rw-r--r-- | src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs b/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs new file mode 100644 index 000000000..9b3ec702c --- /dev/null +++ b/src/test/ui/nll/user-annotations/issue-57731-ascibed-coupled-types.rs @@ -0,0 +1,40 @@ +// Check that repeated type variables are correctly handled + +#![allow(unused)] +#![feature(type_ascription)] + +type PairUncoupled<'a, 'b, T> = (&'a T, &'b T); +type PairCoupledTypes<T> = (T, T); +type PairCoupledRegions<'a, T> = (&'a T, &'a T); + +fn uncoupled_wilds_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { + let ((y, _z),) = ((s, _x),): (PairUncoupled<_>,); + y // OK +} + +fn coupled_wilds_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { + let ((y, _z),) = ((s, _x),): (PairCoupledTypes<_>,); + y //~ ERROR lifetime may not live long enough +} + +fn coupled_regions_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { + let ((y, _z),) = ((s, _x),): (PairCoupledRegions<_>,); + y //~ ERROR lifetime may not live long enough +} + +fn cast_uncoupled_wilds_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { + let ((y, _z),) = ((s, _x),) as (PairUncoupled<_>,); + y // OK +} + +fn cast_coupled_wilds_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { + let ((y, _z),) = ((s, _x),) as (PairCoupledTypes<_>,); + y //~ ERROR lifetime may not live long enough +} + +fn cast_coupled_regions_rhs<'a>(_x: &'a u32, s: &'static u32) -> &'static u32 { + let ((y, _z),) = ((s, _x),) as (PairCoupledRegions<_>,); + y //~ ERROR lifetime may not live long enough +} + +fn main() {} |