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git.proxmox.com Git - rustc.git/blob - src/test/ui/proc-macro/auxiliary/derive-attr-cfg.rs
4 #![crate_type = "proc-macro"]
6 extern crate proc_macro
;
8 use proc_macro
::TokenStream
;
10 #[proc_macro_derive(Foo, attributes(foo))]
11 pub fn derive(input
: TokenStream
) -> TokenStream
{
12 assert
!(!input
.to_string().contains("#[cfg(any())]"));