11 lines
270 B
Rust
11 lines
270 B
Rust
|
extern crate proc_macro;
|
||
|
|
use proc_macro::*;
|
||
|
|
|
||
|
|
#[proc_macro_derive(NoMarker)]
|
||
|
|
pub fn f(input: TokenStream) -> TokenStream {
|
||
|
|
if input.to_string().contains("rustc_copy_clone_marker") {
|
||
|
|
panic!("found `#[rustc_copy_clone_marker]`");
|
||
|
|
}
|
||
|
|
TokenStream::new()
|
||
|
|
}
|