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Add regression test.
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jseyfried committed Feb 28, 2017
1 parent 61a9a14 commit 839398a
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27 changes: 27 additions & 0 deletions src/test/run-pass-fulldeps/proc-macro/auxiliary/issue-39889.rs
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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.

// force-host
// no-prefer-dynamic

#![crate_type = "proc-macro"]

extern crate proc_macro;
use proc_macro::TokenStream;

#[proc_macro_derive(Issue39889)]
pub fn f(_input: TokenStream) -> TokenStream {
let rules = r#"
macro_rules! id {
($($tt:tt)*) => { $($tt)* };
}
"#;
rules.parse().unwrap()
}
22 changes: 22 additions & 0 deletions src/test/run-pass-fulldeps/proc-macro/issue-39889.rs
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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.

// aux-build:issue-39889.rs

#![feature(proc_macro)]
#![allow(unused)]

extern crate issue_39889;
use issue_39889::Issue39889;

#[derive(Issue39889)]
struct S;

fn main() {}

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