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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/proc-macro/derive-helper-legacy-limits.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/proc-macro/derive-helper-legacy-limits.rs')
-rw-r--r-- | src/test/ui/proc-macro/derive-helper-legacy-limits.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/proc-macro/derive-helper-legacy-limits.rs b/src/test/ui/proc-macro/derive-helper-legacy-limits.rs new file mode 100644 index 000000000..ca904900d --- /dev/null +++ b/src/test/ui/proc-macro/derive-helper-legacy-limits.rs @@ -0,0 +1,21 @@ +// Support for legacy derive helpers is limited and heuristic-based +// (that's exactly the reason why they are deprecated). + +// edition:2018 +// aux-build:test-macros.rs + +#[macro_use] +extern crate test_macros; + +use derive as my_derive; + +#[my_derive(Empty)] +#[empty_helper] // OK +struct S1; + +// Legacy helper detection doesn't see through `derive` renaming. +#[empty_helper] //~ ERROR cannot find attribute `empty_helper` in this scope +#[my_derive(Empty)] +struct S2; + +fn main() {} |