[rustc.git] / src / test / run-pass / binding / let-var-hygiene.rs

// Copyright 2012 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.

// run-pass
// shouldn't affect evaluation of $ex:

macro_rules! bad_macro {
    ($ex:expr) => ({let _x = 9; $ex})
}

pub fn main() {
    let _x = 8;
    assert_eq!(bad_macro!(_x),8)
}
Commit	Line	Data
223e47cc LB	1	// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
	2	// file at the top-level directory of this distribution and at
	3	// http://rust-lang.org/COPYRIGHT.
	4	//
	5	// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
	6	// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
	7	// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
	8	// option. This file may not be copied, modified, or distributed
	9	// except according to those terms.
	10
b7449926	11	// run-pass
1a4d82fc	12	// shouldn't affect evaluation of $ex:
c34b1796	13
1a4d82fc	14	macro_rules! bad_macro {
85aaf69f	15	($ex:expr) => ({let _x = 9; $ex})
223e47cc LB	16	}
	17
	18	pub fn main() {
85aaf69f SL	19	let _x = 8;
85aaf69f SL	20	assert_eq!(bad_macro!(_x),8)
223e47cc	21	}