rust/tests/ui/proc-macro/auxiliary/derive-union.rs
2023-01-11 09:32:08 +00:00

19 lines
429 B
Rust

// force-host
// no-prefer-dynamic
#![crate_type = "proc-macro"]
extern crate proc_macro;
use proc_macro::TokenStream;
#[proc_macro_derive(UnionTest)]
pub fn derive(input: TokenStream) -> TokenStream {
let input = input.to_string();
assert!(input.contains("#[repr(C)]"));
assert!(input.contains("union Test {"));
assert!(input.contains("a : u8,"));
assert!(input.contains("}"));
"".parse().unwrap()
}