tests/ui/macros/auxiliary/proc_macro_sequence.rs

   1 // force-host
   2 // no-prefer-dynamic
   3
   4 #![crate_type = "proc-macro"]
   5 #![feature(proc_macro_span, proc_macro_quote)]
   6
   7 extern crate proc_macro;
   8
   9 use proc_macro::{quote, Span, TokenStream, TokenTree};
  10
  11 // This macro generates a macro with the same macro definition as `manual_foo` in
  12 // `same-sequence-span.rs` but with the same span for all sequences.
  13 #[proc_macro]
  14 pub fn make_foo(_: TokenStream) -> TokenStream {
  15     let result = quote! {
  16         macro_rules! generated_foo {
  17             (1 $$x:expr $$($$y:tt,)* $$(= $$z:tt)*) => {};
  18         }
  19     };
  20
  21     result
  22 }