| // Copyright 2014 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. |
| |
| // Tests that references to move-by-default values trigger moves when |
| // they occur as part of various kinds of expressions. |
| |
| |
| struct Foo<A> { f: A } |
| fn guard(_s: String) -> bool {panic!()} |
| fn touch<A>(_a: &A) {} |
| |
| fn f10() { |
| let x = "hi".to_string(); |
| let _y = Foo { f:x }; |
| touch(&x); //~ ERROR use of moved value: `x` |
| } |
| |
| fn f20() { |
| let x = "hi".to_string(); |
| let _y = (x, 3); |
| touch(&x); //~ ERROR use of moved value: `x` |
| } |
| |
| fn f21() { |
| let x = vec!(1, 2, 3); |
| let _y = (x[0], 3); |
| touch(&x); |
| } |
| |
| fn f30(cond: bool) { |
| let x = "hi".to_string(); |
| let y = "ho".to_string(); |
| let _y = if cond { |
| x |
| } else { |
| y |
| }; |
| touch(&x); //~ ERROR use of moved value: `x` |
| touch(&y); //~ ERROR use of moved value: `y` |
| } |
| |
| fn f40(cond: bool) { |
| let x = "hi".to_string(); |
| let y = "ho".to_string(); |
| let _y = match cond { |
| true => x, |
| false => y |
| }; |
| touch(&x); //~ ERROR use of moved value: `x` |
| touch(&y); //~ ERROR use of moved value: `y` |
| } |
| |
| fn f50(cond: bool) { |
| let x = "hi".to_string(); |
| let y = "ho".to_string(); |
| let _y = match cond { |
| _ if guard(x) => 10, |
| true => 10, |
| false => 20, |
| }; |
| touch(&x); //~ ERROR use of moved value: `x` |
| touch(&y); |
| } |
| |
| fn f70() { |
| let x = "hi".to_string(); |
| let _y = [x]; |
| touch(&x); //~ ERROR use of moved value: `x` |
| } |
| |
| fn f80() { |
| let x = "hi".to_string(); |
| let _y = vec!(x); |
| touch(&x); //~ ERROR use of moved value: `x` |
| } |
| |
| fn f100() { |
| let x = vec!("hi".to_string()); |
| let _y = x.into_iter().next().unwrap(); |
| touch(&x); //~ ERROR use of moved value: `x` |
| } |
| |
| fn f110() { |
| let x = vec!("hi".to_string()); |
| let _y = [x.into_iter().next().unwrap(); 1]; |
| touch(&x); //~ ERROR use of moved value: `x` |
| } |
| |
| fn f120() { |
| let mut x = vec!("hi".to_string(), "ho".to_string()); |
| x.swap(0, 1); |
| touch(&x[0]); |
| touch(&x[1]); |
| } |
| |
| fn main() {} |