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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/nll/ty-outlives/wf-unreachable.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/nll/ty-outlives/wf-unreachable.rs')
-rw-r--r-- | tests/ui/nll/ty-outlives/wf-unreachable.rs | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/tests/ui/nll/ty-outlives/wf-unreachable.rs b/tests/ui/nll/ty-outlives/wf-unreachable.rs new file mode 100644 index 000000000..c6f4c4afa --- /dev/null +++ b/tests/ui/nll/ty-outlives/wf-unreachable.rs @@ -0,0 +1,52 @@ +// Test that we check that user type annotations are well-formed, even in dead +// code. + +fn uninit<'a>() { + return; + let x: &'static &'a (); //~ ERROR lifetime may not live long enough +} + +fn var_type<'a>() { + return; + let x: &'static &'a () = &&(); //~ ERROR lifetime may not live long enough +} + +fn uninit_infer<'a>() { + let x: &'static &'a _; //~ ERROR lifetime may not live long enough + x = && (); +} + +fn infer<'a>() { + return; + let x: &'static &'a _ = &&(); //~ ERROR lifetime may not live long enough +} + +fn uninit_no_var<'a>() { + return; + let _: &'static &'a (); //~ ERROR lifetime may not live long enough +} + +fn no_var<'a>() { + return; + let _: &'static &'a () = &&(); //~ ERROR lifetime may not live long enough +} + +fn infer_no_var<'a>() { + return; + let _: &'static &'a _ = &&(); //~ ERROR lifetime may not live long enough +} + +trait X<'a, 'b> {} + +struct C<'a, 'b, T: X<'a, 'b>>(T, &'a (), &'b ()); + +impl X<'_, '_> for i32 {} +impl<'a> X<'a, 'a> for () {} + +// This type annotation is not well-formed because we substitute `()` for `_`. +fn required_substs<'a>() { + return; + let _: C<'static, 'a, _> = C((), &(), &()); //~ ERROR lifetime may not live long enough +} + +fn main() {} |