62 lines
2.2 KiB
Rust
62 lines
2.2 KiB
Rust
// 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.
|
|
|
|
// Test that we correctly compute the move fragments for a fn.
|
|
//
|
|
// Note that the code below is not actually incorrect; the
|
|
// `rustc_move_fragments` attribute is a hack that uses the error
|
|
// reporting mechanisms as a channel for communicating from the
|
|
// internals of the compiler.
|
|
|
|
// Test that moving into a field (i.e. overwriting it) fragments the
|
|
// receiver.
|
|
|
|
#![feature(rustc_attrs)]
|
|
|
|
use std::mem::drop;
|
|
|
|
pub struct Pair<X,Y> { x: X, y: Y }
|
|
|
|
#[rustc_move_fragments]
|
|
pub fn test_overwrite_uninit_field<Z>(z: Z) {
|
|
//~^ ERROR parent_of_fragments: `$(local mut p)`
|
|
//~| ERROR assigned_leaf_path: `$(local z)`
|
|
//~| ERROR moved_leaf_path: `$(local z)`
|
|
//~| ERROR assigned_leaf_path: `$(local mut p).x`
|
|
//~| ERROR unmoved_fragment: `$(local mut p).y`
|
|
|
|
let mut p: Pair<Z,Z>;
|
|
p.x = z;
|
|
}
|
|
|
|
#[rustc_move_fragments]
|
|
pub fn test_overwrite_moved_field<Z>(mut p: Pair<Z,Z>, z: Z) {
|
|
//~^ ERROR parent_of_fragments: `$(local mut p)`
|
|
//~| ERROR assigned_leaf_path: `$(local z)`
|
|
//~| ERROR moved_leaf_path: `$(local z)`
|
|
//~| ERROR assigned_leaf_path: `$(local mut p).y`
|
|
//~| ERROR unmoved_fragment: `$(local mut p).x`
|
|
|
|
drop(p);
|
|
p.y = z;
|
|
}
|
|
|
|
#[rustc_move_fragments]
|
|
pub fn test_overwrite_same_field<Z>(mut p: Pair<Z,Z>) {
|
|
//~^ ERROR parent_of_fragments: `$(local mut p)`
|
|
//~| ERROR moved_leaf_path: `$(local mut p).x`
|
|
//~| ERROR assigned_leaf_path: `$(local mut p).x`
|
|
//~| ERROR unmoved_fragment: `$(local mut p).y`
|
|
|
|
p.x = p.x;
|
|
}
|
|
|
|
pub fn main() { }
|