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// 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 identifier, found keyword `let`
#![feature(quote, rustc_private)]
extern crate syntax;
use syntax::ast;
use syntax::codemap::{self, DUMMY_SP};
use syntax::parse;
use syntax::print::pprust;
fn main() {
let ps = syntax::parse::new_parse_sess();
let mut cx = syntax::ext::base::ExtCtxt::new(
&ps, vec![],
syntax::ext::expand::ExpansionConfig::default("qquote".to_string()));
cx.bt_push(syntax::codemap::ExpnInfo {
call_site: DUMMY_SP,
callee: syntax::codemap::NameAndSpan {
name: "".to_string(),
format: syntax::codemap::MacroBang,
allow_internal_unstable: false,
span: None,
}
});
let cx = &mut cx;
assert_eq!(pprust::expr_to_string(&*quote_expr!(&cx, 23)), "23");
let expr = quote_expr!(&cx, let x isize = 20;);
assert_eq!(pprust::expr_to_string(&*expr), "let x isize = 20;");
}
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