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// Copyright 2016 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.
#![feature(rustc_attrs)]
#![allow(warnings)]
macro_rules! foo { () => {
let x = 1;
macro_rules! bar { () => {x} }
let _ = bar!();
}}
macro_rules! m { // test issue #31856
($n:ident) => (
let a = 1;
let $n = a;
)
}
macro_rules! baz {
($i:ident) => {
let mut $i = 2;
$i = $i + 1;
}
}
#[rustc_error]
fn main() { //~ ERROR compilation successful
foo! {};
bar! {};
let mut a = true;
baz!(a);
}
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