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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/variance/variance-cell-is-invariant.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/variance/variance-cell-is-invariant.rs')
-rw-r--r-- | tests/ui/variance/variance-cell-is-invariant.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tests/ui/variance/variance-cell-is-invariant.rs b/tests/ui/variance/variance-cell-is-invariant.rs new file mode 100644 index 000000000..62ce4f91f --- /dev/null +++ b/tests/ui/variance/variance-cell-is-invariant.rs @@ -0,0 +1,19 @@ +// Test that Cell is considered invariant with respect to its +// type. + +use std::cell::Cell; + +struct Foo<'a> { + x: Cell<Option<&'a isize>>, +} + +fn use_<'short,'long>(c: Foo<'short>, + s: &'short isize, + l: &'long isize, + _where:Option<&'short &'long ()>) { + let _: Foo<'long> = c; + //~^ ERROR lifetime may not live long enough +} + +fn main() { +} |