| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // force-host |
| |
| #![crate_type = "dylib"] |
| #![feature(plugin_registrar, quote, rustc_private)] |
| |
| extern crate syntax_extension_with_dll_deps_1 as other; |
| extern crate syntax; |
| extern crate rustc; |
| extern crate rustc_plugin; |
| |
| use syntax::ast::{TokenTree, Item, MetaItem}; |
| use syntax::codemap::Span; |
| use syntax::ext::base::*; |
| use rustc_plugin::Registry; |
| |
| #[plugin_registrar] |
| pub fn plugin_registrar(reg: &mut Registry) { |
| reg.register_macro("foo", expand_foo); |
| } |
| |
| fn expand_foo(cx: &mut ExtCtxt, sp: Span, tts: &[TokenTree]) |
| -> Box<MacResult+'static> { |
| let answer = other::the_answer(); |
| MacEager::expr(quote_expr!(cx, $answer)) |
| } |