| // 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. |
| |
| #![feature(box_syntax)] |
| |
| struct A { a: isize, b: Box<isize> } |
| |
| fn deref_after_move() { |
| let x = A { a: 1, b: box 2 }; |
| drop(x.b); |
| drop(*x.b); //~ ERROR use of moved value: `*x.b` |
| } |
| |
| fn deref_after_fu_move() { |
| let x = A { a: 1, b: box 2 }; |
| let y = A { a: 3, .. x }; |
| drop(*x.b); //~ ERROR use of moved value: `*x.b` |
| } |
| |
| fn borrow_after_move() { |
| let x = A { a: 1, b: box 2 }; |
| drop(x.b); |
| let p = &x.b; //~ ERROR use of moved value: `x.b` |
| drop(**p); |
| } |
| |
| fn borrow_after_fu_move() { |
| let x = A { a: 1, b: box 2 }; |
| let _y = A { a: 3, .. x }; |
| let p = &x.b; //~ ERROR use of moved value: `x.b` |
| drop(**p); |
| } |
| |
| fn move_after_borrow() { |
| let x = A { a: 1, b: box 2 }; |
| let p = &x.b; |
| drop(x.b); //~ ERROR cannot move out of `x.b` because it is borrowed |
| drop(**p); |
| } |
| |
| fn fu_move_after_borrow() { |
| let x = A { a: 1, b: box 2 }; |
| let p = &x.b; |
| let _y = A { a: 3, .. x }; //~ ERROR cannot move out of `x.b` because it is borrowed |
| drop(**p); |
| } |
| |
| fn mut_borrow_after_mut_borrow() { |
| let mut x = A { a: 1, b: box 2 }; |
| let p = &mut x.a; |
| let q = &mut x.a; //~ ERROR cannot borrow `x.a` as mutable more than once at a time |
| drop(*p); |
| drop(*q); |
| } |
| |
| fn move_after_move() { |
| let x = A { a: 1, b: box 2 }; |
| drop(x.b); |
| drop(x.b); //~ ERROR use of moved value: `x.b` |
| } |
| |
| fn move_after_fu_move() { |
| let x = A { a: 1, b: box 2 }; |
| let _y = A { a: 3, .. x }; |
| drop(x.b); //~ ERROR use of moved value: `x.b` |
| } |
| |
| fn fu_move_after_move() { |
| let x = A { a: 1, b: box 2 }; |
| drop(x.b); |
| let _z = A { a: 3, .. x }; //~ ERROR use of moved value: `x.b` |
| } |
| |
| fn fu_move_after_fu_move() { |
| let x = A { a: 1, b: box 2 }; |
| let _y = A { a: 3, .. x }; |
| let _z = A { a: 4, .. x }; //~ ERROR use of moved value: `x.b` |
| } |
| |
| // The following functions aren't yet accepted, but they should be. |
| |
| fn copy_after_field_assign_after_uninit() { |
| let mut x: A; |
| x.a = 1; |
| drop(x.a); //~ ERROR use of possibly uninitialized variable: `x.a` |
| } |
| |
| fn borrow_after_field_assign_after_uninit() { |
| let mut x: A; |
| x.a = 1; |
| let p = &x.a; //~ ERROR use of possibly uninitialized variable: `x.a` |
| drop(*p); |
| } |
| |
| fn move_after_field_assign_after_uninit() { |
| let mut x: A; |
| x.b = box 1; |
| drop(x.b); //~ ERROR use of possibly uninitialized variable: `x.b` |
| } |
| |
| fn main() { |
| deref_after_move(); |
| deref_after_fu_move(); |
| |
| borrow_after_move(); |
| borrow_after_fu_move(); |
| move_after_borrow(); |
| fu_move_after_borrow(); |
| mut_borrow_after_mut_borrow(); |
| |
| move_after_move(); |
| move_after_fu_move(); |
| fu_move_after_move(); |
| fu_move_after_fu_move(); |
| |
| copy_after_field_assign_after_uninit(); |
| borrow_after_field_assign_after_uninit(); |
| move_after_field_assign_after_uninit(); |
| } |