25 lines
792 B
Rust
25 lines
792 B
Rust
|
// Copyright 2018 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.
|
||
|
|
|
||
|
|
// no-prefer-dynamic
|
||
|
|
|
||
|
|
#![crate_type = "proc-macro"]
|
||
|
|
|
||
|
|
extern crate proc_macro;
|
||
|
|
use proc_macro::*;
|
||
|
|
|
||
|
|
fn foo(arg: TokenStream) -> TokenStream {
|
||
|
|
#[proc_macro]
|
||
|
|
pub fn foo(arg: TokenStream) -> TokenStream { arg }
|
||
|
|
//~^ ERROR functions tagged with `#[proc_macro]` must currently reside in the root of the crate
|
||
|
|
|
||
|
|
arg
|
||
|
|
}
|