8c93a79e38
Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work.
72 lines
2.1 KiB
Rust
72 lines
2.1 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.
|
|
|
|
// pretty-expanded FIXME #23616
|
|
|
|
use std::rc::Rc;
|
|
|
|
// Examples from the "deref coercions" RFC, at rust-lang/rfcs#241.
|
|
|
|
fn use_ref<T>(_: &T) {}
|
|
fn use_mut<T>(_: &mut T) {}
|
|
|
|
fn use_rc<T>(t: Rc<T>) {
|
|
use_ref(&*t); // what you have to write today
|
|
use_ref(&t); // what you'd be able to write
|
|
use_ref(&&&&&&t);
|
|
use_ref(&mut &&&&&t);
|
|
use_ref(&&&mut &&&t);
|
|
}
|
|
|
|
fn use_mut_box<T>(mut t: &mut Box<T>) {
|
|
use_mut(&mut *t); // what you have to write today
|
|
use_mut(t); // what you'd be able to write
|
|
use_mut(&mut &mut &mut t);
|
|
|
|
use_ref(&*t); // what you have to write today
|
|
use_ref(t); // what you'd be able to write
|
|
use_ref(&&&&&&t);
|
|
use_ref(&mut &&&&&t);
|
|
use_ref(&&&mut &&&t);
|
|
}
|
|
|
|
fn use_nested<T>(t: &Box<T>) {
|
|
use_ref(&**t); // what you have to write today
|
|
use_ref(t); // what you'd be able to write (note: recursive deref)
|
|
use_ref(&&&&&&t);
|
|
use_ref(&mut &&&&&t);
|
|
use_ref(&&&mut &&&t);
|
|
}
|
|
|
|
fn use_slice(_: &[u8]) {}
|
|
fn use_slice_mut(_: &mut [u8]) {}
|
|
|
|
fn use_vec(mut v: Vec<u8>) {
|
|
use_slice_mut(&mut v[..]); // what you have to write today
|
|
use_slice_mut(&mut v); // what you'd be able to write
|
|
use_slice_mut(&mut &mut &mut v);
|
|
|
|
use_slice(&v[..]); // what you have to write today
|
|
use_slice(&v); // what you'd be able to write
|
|
use_slice(&&&&&&v);
|
|
use_slice(&mut &&&&&v);
|
|
use_slice(&&&mut &&&v);
|
|
}
|
|
|
|
fn use_vec_ref(v: &Vec<u8>) {
|
|
use_slice(&v[..]); // what you have to write today
|
|
use_slice(v); // what you'd be able to write
|
|
use_slice(&&&&&&v);
|
|
use_slice(&mut &&&&&v);
|
|
use_slice(&&&mut &&&v);
|
|
}
|
|
|
|
pub fn main() {}
|