mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-25 00:03:43 +00:00
17 lines
408 B
Rust
17 lines
408 B
Rust
|
// compile-flags: --test
|
||
|
#![crate_type = "proc-macro"]
|
||
|
|
||
|
extern crate proc_macro;
|
||
|
use proc_macro::TokenStream;
|
||
|
|
||
|
#[proc_macro]
|
||
|
pub fn mac(input: TokenStream) -> TokenStream { loop {} }
|
||
|
|
||
|
#[cfg(test)]
|
||
|
mod test {
|
||
|
#[test]
|
||
|
fn t() { crate::mac!(A) }
|
||
|
//~^ ERROR can't use a procedural macro from the same crate that defines it
|
||
|
//~| HELP you can define integration tests in a directory named `tests`
|
||
|
}
|