rust/src/test/compile-fail/liveness-assign-imm-local-with-drop.rs
2017-11-27 08:07:58 +00:00

27 lines
994 B
Rust

// 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.
// revisions: ast mir
//[mir]compile-flags: -Zborrowck=mir
fn test() {
let b = Box::new(1); //[ast]~ NOTE first assignment
//[mir]~^ NOTE first assignment
drop(b);
b = Box::new(2); //[ast]~ ERROR cannot assign twice to immutable variable
//[mir]~^ ERROR cannot assign twice to immutable variable `b`
//[ast]~| NOTE cannot assign twice to immutable
//[mir]~| NOTE cannot assign twice to immutable
drop(b);
}
fn main() {
}