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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
commit | 4f9fe856a25ab29345b90e7725509e9ee38a37be (patch) | |
tree | e4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /tests/ui/single-use-lifetime | |
parent | Adding upstream version 1.68.2+dfsg1. (diff) | |
download | rustc-upstream/1.69.0+dfsg1.tar.xz rustc-upstream/1.69.0+dfsg1.zip |
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/single-use-lifetime')
-rw-r--r-- | tests/ui/single-use-lifetime/issue-107998.rs | 9 | ||||
-rw-r--r-- | tests/ui/single-use-lifetime/issue-107998.stderr | 30 |
2 files changed, 39 insertions, 0 deletions
diff --git a/tests/ui/single-use-lifetime/issue-107998.rs b/tests/ui/single-use-lifetime/issue-107998.rs new file mode 100644 index 000000000..f32688d20 --- /dev/null +++ b/tests/ui/single-use-lifetime/issue-107998.rs @@ -0,0 +1,9 @@ +#![deny(single_use_lifetimes)] + +fn with<R>(f: &fn<'a>(x: &'a i32) -> R) -> R { + //~^ ERROR function pointer types may not have generic parameters + //~| ERROR lifetime parameter `'a` only used once + f(&3) +} + +fn main() {} diff --git a/tests/ui/single-use-lifetime/issue-107998.stderr b/tests/ui/single-use-lifetime/issue-107998.stderr new file mode 100644 index 000000000..e870351de --- /dev/null +++ b/tests/ui/single-use-lifetime/issue-107998.stderr @@ -0,0 +1,30 @@ +error: function pointer types may not have generic parameters + --> $DIR/issue-107998.rs:3:18 + | +LL | fn with<R>(f: &fn<'a>(x: &'a i32) -> R) -> R { + | ^^^^ + | +help: consider moving the lifetime parameter to a `for` parameter list + | +LL - fn with<R>(f: &fn<'a>(x: &'a i32) -> R) -> R { +LL + fn with<R>(f: &for<'a> fn(x: &'a i32) -> R) -> R { + | + +error: lifetime parameter `'a` only used once + --> $DIR/issue-107998.rs:3:19 + | +LL | fn with<R>(f: &fn<'a>(x: &'a i32) -> R) -> R { + | ^^ --- + | | | + | | ...is used only here + | | help: elide the single-use lifetime + | this lifetime... + | +note: the lint level is defined here + --> $DIR/issue-107998.rs:1:9 + | +LL | #![deny(single_use_lifetimes)] + | ^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 2 previous errors + |