rust/src/test/compile-fail/macro-context.rs
2015-11-24 17:46:10 +01:00

34 lines
1.5 KiB
Rust

// Copyright 2015 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(type_macros)]
// (typeof used because it's surprisingly hard to find an unparsed token after a stmt)
macro_rules! m {
() => ( i ; typeof ); //~ ERROR `typeof` is a reserved keyword
//~| ERROR macro expansion ignores token `typeof`
//~| ERROR macro expansion ignores token `typeof`
//~| ERROR macro expansion ignores token `;`
//~| ERROR macro expansion ignores token `;`
//~| ERROR macro expansion ignores token `i`
}
m!(); //~ NOTE the usage of `m!` is likely invalid in item context
fn main() {
let a: m!(); //~ NOTE the usage of `m!` is likely invalid in type context
let i = m!(); //~ NOTE the usage of `m!` is likely invalid in expression context
match 0 {
m!() => {} //~ NOTE the usage of `m!` is likely invalid in pattern context
}
m!(); //~ NOTE the usage of `m!` is likely invalid in statement context
}