rust/tests/ui/proc-macro/auxiliary/derive-attr-cfg.rs
2024-02-16 20:02:50 +00:00

15 lines
304 B
Rust

//@ force-host
//@ no-prefer-dynamic
#![crate_type = "proc-macro"]
extern crate proc_macro;
use proc_macro::TokenStream;
#[proc_macro_derive(Foo, attributes(foo))]
pub fn derive(input: TokenStream) -> TokenStream {
assert!(!input.to_string().contains("#[cfg(any())]"));
"".parse().unwrap()
}