| // Copyright 2016 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. |
| |
| // aux-build:proc_macro_def.rs |
| // ignore-cross-compile |
| |
| #![feature(proc_macro_hygiene)] |
| |
| extern crate proc_macro_def; |
| |
| use proc_macro_def::{attr_tru, attr_identity, identity, ret_tru, tru}; |
| |
| #[attr_tru] |
| fn f1() -> bool { |
| return false; |
| } |
| |
| #[attr_identity] |
| fn f2() -> bool { |
| return identity!(true); |
| } |
| |
| fn f3() -> identity!(bool) { |
| ret_tru!(); |
| } |
| |
| fn f4(x: bool) -> bool { |
| match x { |
| identity!(true) => false, |
| identity!(false) => true, |
| } |
| } |
| |
| fn main() { |
| assert!(f1()); |
| assert!(f2()); |
| assert!(tru!()); |
| assert!(f3()); |
| assert!(identity!(5 == 5)); |
| assert!(f4(false)); |
| } |