src/test/run-pass-fulldeps/proc-macro/auxiliary/derive-b.rs

   1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // no-prefer-dynamic
  12
  13 #![crate_type = "proc-macro"]
  14
  15 extern crate proc_macro;
  16
  17 use proc_macro::TokenStream;
  18
  19 #[proc_macro_derive(B, attributes(B, C))]
  20 pub fn derive(input: TokenStream) -> TokenStream {
  21     let input = input.to_string();
  22     assert!(input.contains("#[B]"));
  23     assert!(input.contains("struct B {"));
  24     assert!(input.contains("#[C]"));
  25     assert!(input.contains("#[derive(Debug, PartialEq, Eq, Copy, Clone)]"));
  26     "".parse().unwrap()
  27 }