1 // Copyright 2012-2014 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.
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.
11 // ignore-pretty: pprust doesn't print hygiene output
15 // $e shouldn't be able to interact with this 'x
20 macro_rules! while_true {
22 // $e shouldn't be able to interact with this 'x
23 'x: while 1i + 1 == 2 { $e }
27 macro_rules! run_once {
30 'x: for _ in range(0i, 1) { $e }
39 // this 'x should refer to the outer loop, lexically
48 'x: for _ in range(0i, 1) {
58 'x: for _ in range(0i, 1) {
60 while_true!(break 'x);
68 'x: for _ in range(0i, 1) {
70 run_once!(continue 'x);