src/test/auxiliary/syntax_extension_with_dll_deps_2.rs

   1 // Copyright 2014 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 // force-host
  12
  13 #![crate_type = "dylib"]
  14 #![feature(plugin_registrar, quote)]
  15
  16 extern crate "syntax_extension_with_dll_deps_1" as other;
  17 extern crate syntax;
  18 extern crate rustc;
  19
  20 use syntax::ast::{TokenTree, Item, MetaItem};
  21 use syntax::codemap::Span;
  22 use syntax::ext::base::*;
  23 use rustc::plugin::Registry;
  24
  25 #[plugin_registrar]
  26 pub fn plugin_registrar(reg: &mut Registry) {
  27     reg.register_macro("foo", expand_foo);
  28 }
  29
  30 fn expand_foo(cx: &mut ExtCtxt, sp: Span, tts: &[TokenTree])
  31               -> Box<MacResult+'static> {
  32     let answer = other::the_answer();
  33     MacExpr::new(quote_expr!(cx, $answer))
  34 }