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warning: empty trait list in derive should not emit if created by a macro #54652
Description
The following code should not emit a warning at the call site of the macro:
#![crate_type="lib"]
macro_rules! ds {
() => (#[derive()] struct StructDs;)
}
ds!{}Currently, it does:
warning: empty trait list in `derive`
--> src/lib.rs:8:12
|
8 | () => (#[derive()] struct StructDs;)
| ^^^^^^^^^^^
...
11 | ds!{}
| ----- in this macro invocation
Activity
[-]warning: empty trait list in `derive` should not fired if created by a macro[/-][+]warning: empty trait list in `derive` should not fire if created by a macro[/+][-]warning: empty trait list in `derive` should not fire if created by a macro[/-][+]warning: empty trait list in `derive` should not emit if created by a macro[/+]fmease commentedon Dec 28, 2024
Since #79078,
#[derive()]no longer triggers a lint anywhere / at all. Closing as (coincidentally) fixed.