rust/src/test/compile-fail/borrowck/borrowck-partial-reinit-1.rs
2016-02-24 18:40:39 -05:00

50 lines
1.1 KiB
Rust

// Copyright 2014-2015 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 Test;
struct Test2 {
b: Option<Test>,
}
struct Test3(Option<Test>);
impl Drop for Test {
fn drop(&mut self) {
println!("dropping!");
}
}
impl Drop for Test2 {
fn drop(&mut self) {}
}
impl Drop for Test3 {
fn drop(&mut self) {}
}
fn stuff() {
let mut t = Test2 { b: None };
let u = Test;
drop(t);
t.b = Some(u);
//~^ ERROR partial reinitialization of uninitialized structure `t`
let mut t = Test3(None);
let u = Test;
drop(t);
t.0 = Some(u);
//~^ ERROR partial reinitialization of uninitialized structure `t`
}
fn main() {
stuff()
}