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// Copyright 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.
fn macros() {
macro_rules! foo{
($p:pat, $e:expr, $b:block) => {{
while let $p = $e $b
}}
}
macro_rules! bar{
($p:pat, $e:expr, $b:block) => {{
foo!($p, $e, $b)
}}
}
foo!(a, 1is, { //~ ERROR irrefutable while-let
println!("irrefutable pattern");
});
bar!(a, 1is, { //~ ERROR irrefutable while-let
println!("irrefutable pattern");
});
}
pub fn main() {
while let a = 1is { //~ ERROR irrefutable while-let
println!("irrefutable pattern");
}
}
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