rust/tests/ui/rust-2018/auxiliary/macro-use-warned-against.rs

#[macro_export]
macro_rules! foo { () => () }
rustc: Lint against `#[macro_use]` in 2018 idioms This commit adds a lint to the compiler to warn against the `#[macro_use]` directive as part of the `rust_2018_idioms` lint. This lint is turned off by default and is only enabled when the `use_extern_macros` feature is also enabled. The lint here isn't fully fleshed out as it's just a simple warning rather than suggestions of how to actually import the macro, but hopefully it's a good base to start from! cc #52043 2018-07-11 21:25:29 +00:00			`#[macro_export]`
			`macro_rules! foo { () => () }`