rust/src/test/ui/borrowck/assign_mutable_fields.rs
Niko Matsakis 58e4b54bd4 move tests to borrowck directory, remove feature(nll)
now compare-mode can show us the differences
2018-08-19 08:15:13 -07:00

33 lines
936 B
Rust

// Copyright 2017 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.
// Currently, we permit you to assign to individual fields of a mut
// var, but we do not permit you to use the complete var afterwards.
// We hope to fix this at some point.
//
// FIXME(#21232)
fn assign_both_fields_and_use() {
let mut x: (u32, u32);
x.0 = 1;
x.1 = 22;
drop(x.0); //~ ERROR
drop(x.1); //~ ERROR
}
fn assign_both_fields_the_use_var() {
let mut x: (u32, u32);
x.0 = 1;
x.1 = 22;
drop(x); //~ ERROR
}
fn main() { }