| // 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. |
| |
| // In expression position, but not statement position, when we expand a macro, |
| // we replace the span of the expanded expression with that of the call site. |
| |
| macro_rules! nested_expr { |
| () => (fake) |
| } |
| |
| macro_rules! call_nested_expr { |
| () => (nested_expr!()) |
| } |
| |
| macro_rules! call_nested_expr_sum { |
| () => { 1 + nested_expr!(); } //~ ERROR unresolved name |
| } |
| |
| fn main() { |
| 1 + call_nested_expr!(); //~ ERROR unresolved name |
| call_nested_expr_sum!(); //~ NOTE in this expansion of |
| } |
