| // Copyright 2013 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. |
| |
| // after fixing #9384 and implementing hygiene for match bindings, |
| // this now fails because the insertion of the 'y' into the match |
| // doesn't cause capture. Making this macro hygienic (as I've done) |
| // could very well make this test case completely pointless.... |
| |
| // pretty-expanded FIXME #23616 |
| |
| enum T { |
| A(isize), |
| B(usize) |
| } |
| |
| macro_rules! test { |
| ($id:ident, $e:expr) => ( |
| fn foo(t: T) -> isize { |
| match t { |
| T::A($id) => $e, |
| T::B($id) => $e |
| } |
| } |
| ) |
| } |
| |
| test!(y, 10 + (y as isize)); |
| |
| pub fn main() { |
| foo(T::A(20)); |
| } |
