rust/tests/ui/lint/auxiliary/deny-macro.rs

#[macro_export]
macro_rules! emit_deny {
    () => {
        #[deny(unsafe_code)]
        let _so_safe = 0;
    };
}
Allow `#[deny(..)]` inside `#[forbid(..)]` as a no-op with a warning Forbid cannot be overriden. When someome tries to do this anyways, it results in a hard error. That makes sense. Except it doesn't, because macros. Macros may reasonably use `#[deny]` in their expansion to assert that their expanded code follows the lint. This is doesn't work when the output gets expanded into a `forbid()` context. This is pretty silly, since both the macros and the code agree on the lint! Therefore, we allow `#[deny(..)]`ing a lint that's already forbidden, keeping the level at forbid. 2024-10-17 19:34:04 +02:00			`#[macro_export]`
			`macro_rules! emit_deny {`
			`() => {`
			`#[deny(unsafe_code)]`
			`let _so_safe = 0;`
			`};`
			`}`