| // Copyright 2012-2014 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. |
| |
| // ignore-cross-compile |
| |
| // error-pattern:expected expression, found statement (`let`) |
| |
| #![feature(quote, rustc_private)] |
| |
| extern crate syntax; |
| extern crate syntax_pos; |
| |
| use syntax::ast; |
| use syntax::source_map; |
| use syntax::print::pprust; |
| use syntax::symbol::Symbol; |
| use syntax_pos::DUMMY_SP; |
| |
| fn main() { |
| syntax::with_globals(|| run()); |
| } |
| |
| fn run() { |
| let ps = syntax::parse::ParseSess::new(source_map::FilePathMapping::empty()); |
| let mut resolver = syntax::ext::base::DummyResolver; |
| let mut cx = syntax::ext::base::ExtCtxt::new( |
| &ps, |
| syntax::ext::expand::ExpansionConfig::default("qquote".to_string()), |
| &mut resolver); |
| let cx = &mut cx; |
| |
| println!("{}", pprust::expr_to_string(&*quote_expr!(&cx, 23))); |
| assert_eq!(pprust::expr_to_string(&*quote_expr!(&cx, 23)), "23"); |
| |
| let expr = quote_expr!(&cx, let x isize = 20;); |
| println!("{}", pprust::expr_to_string(&*expr)); |
| assert_eq!(pprust::expr_to_string(&*expr), "let x isize = 20;"); |
| } |