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// 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.
struct A { a: int, b: int }
struct B { a: int, b: Box<int> }
fn var_copy_after_var_borrow() {
let mut x: int = 1;
let p = &mut x;
drop(x); //~ ERROR cannot use `x` because it was mutably borrowed
*p = 2;
}
fn var_copy_after_field_borrow() {
let mut x = A { a: 1, b: 2 };
let p = &mut x.a;
drop(x); //~ ERROR cannot use `x` because it was mutably borrowed
*p = 3;
}
fn field_copy_after_var_borrow() {
let mut x = A { a: 1, b: 2 };
let p = &mut x;
drop(x.a); //~ ERROR cannot use `x.a` because it was mutably borrowed
p.a = 3;
}
fn field_copy_after_field_borrow() {
let mut x = A { a: 1, b: 2 };
let p = &mut x.a;
drop(x.a); //~ ERROR cannot use `x.a` because it was mutably borrowed
*p = 3;
}
fn fu_field_copy_after_var_borrow() {
let mut x = A { a: 1, b: 2 };
let p = &mut x;
let y = A { b: 3, .. x }; //~ ERROR cannot use `x.a` because it was mutably borrowed
drop(y);
p.a = 4;
}
fn fu_field_copy_after_field_borrow() {
let mut x = A { a: 1, b: 2 };
let p = &mut x.a;
let y = A { b: 3, .. x }; //~ ERROR cannot use `x.a` because it was mutably borrowed
drop(y);
*p = 4;
}
fn var_deref_after_var_borrow() {
let mut x: Box<int> = box 1;
let p = &mut x;
drop(*x); //~ ERROR cannot use `*x` because it was mutably borrowed
**p = 2;
}
fn field_deref_after_var_borrow() {
let mut x = B { a: 1, b: box 2 };
let p = &mut x;
drop(*x.b); //~ ERROR cannot use `*x.b` because it was mutably borrowed
p.a = 3;
}
fn field_deref_after_field_borrow() {
let mut x = B { a: 1, b: box 2 };
let p = &mut x.b;
drop(*x.b); //~ ERROR cannot use `*x.b` because it was mutably borrowed
**p = 3;
}
fn main() {
var_copy_after_var_borrow();
var_copy_after_field_borrow();
field_copy_after_var_borrow();
field_copy_after_field_borrow();
fu_field_copy_after_var_borrow();
fu_field_copy_after_field_borrow();
var_deref_after_var_borrow();
field_deref_after_var_borrow();
field_deref_after_field_borrow();
}
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