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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/issues/issue-87199.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/issues/issue-87199.rs')
-rw-r--r-- | src/test/ui/issues/issue-87199.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-87199.rs b/src/test/ui/issues/issue-87199.rs new file mode 100644 index 000000000..a80a64a2f --- /dev/null +++ b/src/test/ui/issues/issue-87199.rs @@ -0,0 +1,20 @@ +// Regression test for issue #87199, where attempting to relax a bound +// other than the only supported `?Sized` would still cause the compiler +// to assume that the `Sized` bound was relaxed. + +// check-fail + +// Check that these function definitions only emit warnings, not errors +fn arg<T: ?Send>(_: T) {} +//~^ warning: default bound relaxed for a type parameter, but this does nothing +fn ref_arg<T: ?Send>(_: &T) {} +//~^ warning: default bound relaxed for a type parameter, but this does nothing +fn ret() -> impl Iterator<Item = ()> + ?Send { std::iter::empty() } +//~^ warning: default bound relaxed for a type parameter, but this does nothing + +// Check that there's no `?Sized` relaxation! +fn main() { + ref_arg::<i32>(&5); + ref_arg::<[i32]>(&[5]); + //~^ the size for values of type `[i32]` cannot be known +} |