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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/async-await/unused-lifetime.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/async-await/unused-lifetime.rs')
-rw-r--r-- | src/test/ui/async-await/unused-lifetime.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/test/ui/async-await/unused-lifetime.rs b/src/test/ui/async-await/unused-lifetime.rs new file mode 100644 index 000000000..6cfd36ba9 --- /dev/null +++ b/src/test/ui/async-await/unused-lifetime.rs @@ -0,0 +1,39 @@ +// Check "unused_lifetimes" lint on both async and sync functions +// Both cases should be diagnosed the same way. + +// edition:2018 + +#![deny(unused_lifetimes)] + +async fn async_wrong_without_args<'a>() {} //~ ERROR lifetime parameter `'a` never used + +async fn async_wrong_1_lifetime<'a>(_: &i32) {} //~ ERROR lifetime parameter `'a` never used + +async fn async_wrong_2_lifetimes<'a, 'b>(_: &'a i32, _: &i32) {} //~ ERROR lifetime parameter `'b` never used + +async fn async_right_1_lifetime<'a>(_: &'a i32) {} + +async fn async_right_2_lifetimes<'a, 'b>(_: &'a i32, _: &'b i32) {} + +async fn async_right_trait_bound_lifetime<'a, I>(_: I) +where + I: Iterator<Item = &'a i32> +{} + +fn wrong_without_args<'a>() {} //~ ERROR lifetime parameter `'a` never used + +fn wrong_1_lifetime<'a>(_: &i32) {} //~ ERROR lifetime parameter `'a` never used + +fn wrong_2_lifetimes<'a, 'b>(_: &'a i32, _: &i32) {} //~ ERROR lifetime parameter `'b` never used + +fn right_1_lifetime<'a>(_: &'a i32) {} + +fn right_2_lifetimes<'a, 'b>(_: &'a i32, _: &'b i32) {} + +fn right_trait_bound_lifetime<'a, I>(_: I) +where + I: Iterator<Item = &'a i32> +{} + + +fn main() {} |