| // 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. |
| |
| #![allow(unused_macros)] |
| |
| mod macros_cant_escape_fns { |
| fn f() { |
| macro_rules! m { () => { 3 + 4 } } |
| } |
| fn g() -> i32 { m!() } |
| //~^ ERROR cannot find macro |
| } |
| |
| mod macros_cant_escape_mods { |
| mod f { |
| macro_rules! m { () => { 3 + 4 } } |
| } |
| fn g() -> i32 { m!() } |
| //~^ ERROR cannot find macro |
| } |
| |
| mod macros_can_escape_flattened_mods_test { |
| #[macro_use] |
| mod f { |
| macro_rules! m { () => { 3 + 4 } } |
| } |
| fn g() -> i32 { m!() } |
| } |
| |
| fn macro_tokens_should_match() { |
| macro_rules! m { (a) => { 13 } } |
| m!(a); |
| } |
| |
| // should be able to use a bound identifier as a literal in a macro definition: |
| fn self_macro_parsing() { |
| macro_rules! foo { (zz) => { 287; } } |
| fn f(zz: i32) { |
| foo!(zz); |
| } |
| } |
| |
| fn main() {} |