mirror of https://github.com/rust-lang/rust
14 lines
354 B
Rust
14 lines
354 B
Rust
//@ aux-build:test-macros.rs
|
|
|
|
#[macro_use(Empty)]
|
|
extern crate test_macros;
|
|
use test_macros::empty_attr as empty_helper;
|
|
|
|
#[empty_helper] //~ ERROR `empty_helper` is ambiguous
|
|
//~| WARN derive helper attribute is used before it is introduced
|
|
//~| WARN this was previously accepted
|
|
#[derive(Empty)]
|
|
struct S;
|
|
|
|
fn main() {}
|