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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/single-use-lifetime/zero-uses-in-fn.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/single-use-lifetime/zero-uses-in-fn.rs')
-rw-r--r-- | tests/ui/single-use-lifetime/zero-uses-in-fn.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/ui/single-use-lifetime/zero-uses-in-fn.rs b/tests/ui/single-use-lifetime/zero-uses-in-fn.rs new file mode 100644 index 000000000..7f9504fe5 --- /dev/null +++ b/tests/ui/single-use-lifetime/zero-uses-in-fn.rs @@ -0,0 +1,24 @@ +// run-rustfix + +// Test that we DO warn when lifetime name is not used at all. + +#![deny(unused_lifetimes)] +#![allow(dead_code, unused_variables)] + +fn september<'a>() {} +//~^ ERROR lifetime parameter `'a` never used +//~| HELP elide the unused lifetime + +fn october<'a, 'b, T>(s: &'b T) -> &'b T { + //~^ ERROR lifetime parameter `'a` never used + //~| HELP elide the unused lifetime + s +} + +fn november<'a, 'b>(s: &'a str) -> &'a str { + //~^ ERROR lifetime parameter `'b` never used + //~| HELP elide the unused lifetime + s +} + +fn main() {} |