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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/single-use-lifetime/zero-uses-in-fn.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/single-use-lifetime/zero-uses-in-fn.rs')
-rw-r--r-- | src/test/ui/single-use-lifetime/zero-uses-in-fn.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/single-use-lifetime/zero-uses-in-fn.rs b/src/test/ui/single-use-lifetime/zero-uses-in-fn.rs new file mode 100644 index 000000000..7f9504fe5 --- /dev/null +++ b/src/test/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() {} |