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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/lint/issue-47775-nested-macro-unnecessary-parens-arg.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/lint/issue-47775-nested-macro-unnecessary-parens-arg.rs')
-rw-r--r-- | tests/ui/lint/issue-47775-nested-macro-unnecessary-parens-arg.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/ui/lint/issue-47775-nested-macro-unnecessary-parens-arg.rs b/tests/ui/lint/issue-47775-nested-macro-unnecessary-parens-arg.rs new file mode 100644 index 000000000..0a951cfa9 --- /dev/null +++ b/tests/ui/lint/issue-47775-nested-macro-unnecessary-parens-arg.rs @@ -0,0 +1,27 @@ +// check-pass + +#![warn(unused_parens)] + +macro_rules! the_worship_the_heart_lifts_above { + ( @as_expr, $e:expr) => { $e }; + ( @generate_fn, $name:tt) => { + #[allow(dead_code)] fn the_moth_for_the_star<'a>() -> Option<&'a str> { + Some(the_worship_the_heart_lifts_above!( @as_expr, $name )) + } + }; + ( $name:ident ) => { the_worship_the_heart_lifts_above!( @generate_fn, (stringify!($name))); } + // ↑ Notably, this does 𝘯𝘰𝘵 warn: we're declining to lint unused parens in + // function/method arguments inside of nested macros because of situations + // like those reported in Issue #47775 +} + +macro_rules! and_the_heavens_reject_not { + () => { + #[allow(dead_code)] fn the_night_for_the_morrow() -> Option<isize> { Some((2)) } + } +} + +the_worship_the_heart_lifts_above!(rah); +and_the_heavens_reject_not!(); + +fn main() {} |