// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // compile-flags: -Z continue-parse-after-error macro_rules! parallel { ( // If future has `pred`/`moelarry` fragments (where "pred" is // "like expr, but with `{` in its FOLLOW set"), then could // use `pred` instead of future-proof erroring here. See also: // // https://github.com/rust-lang/rfcs/pull/1384#issuecomment-160165525 for $id:ident in $iter:expr { //~ WARN `$iter:expr` is followed by `{` $( $inner:expr; )* } ) => {}; } fn main() { parallel! { for i in 0..n { x += i; //~ ERROR expected `:`, found `+=` } //~ ERROR unexpected end of macro invocation } }