rust/tests/ui/auxiliary/proc_macro_unsafe.rs

19 lines
527 B
Rust

//@compile-flags: --emit=link
//@no-prefer-dynamic
#![crate_type = "proc-macro"]
extern crate proc_macro;
use proc_macro::{Delimiter, Group, Ident, TokenStream, TokenTree};
#[proc_macro]
pub fn unsafe_block(input: TokenStream) -> TokenStream {
let span = input.into_iter().next().unwrap().span();
TokenStream::from_iter([TokenTree::Ident(Ident::new("unsafe", span)), {
let mut group = Group::new(Delimiter::Brace, TokenStream::new());
group.set_span(span);
TokenTree::Group(group)
}])
}