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// 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.
// aux-build:internal_unstable.rs
#![feature(rustc_attrs, allow_internal_unstable)]
#[macro_use]
extern crate internal_unstable;
macro_rules! foo {
($e: expr, $f: expr) => {{
$e;
$f;
internal_unstable::unstable(); //~ WARN use of unstable
}}
}
#[allow_internal_unstable]
macro_rules! bar {
($e: expr) => {{
foo!($e,
internal_unstable::unstable());
internal_unstable::unstable();
}}
}
#[rustc_error]
fn main() { //~ ERROR
// ok, the instability is contained.
call_unstable_allow!();
construct_unstable_allow!(0);
// bad.
pass_through_allow!(internal_unstable::unstable()); //~ WARN use of unstable
pass_through_noallow!(internal_unstable::unstable()); //~ WARN use of unstable
println!("{:?}", internal_unstable::unstable()); //~ WARN use of unstable
bar!(internal_unstable::unstable()); //~ WARN use of unstable
}
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