8e9f8f924c
This commit adds the following impls:
impl<T> Deref<[T]> for Vec<T>
impl<T> DerefMut<[T]> for Vec<T>
impl Deref<str> for String
This commit also removes all duplicated inherent methods from vectors and
strings as implementations will now silently call through to the slice
implementation. Some breakage occurred at std and beneath due to inherent
methods removed in favor of those in the slice traits and std doesn't use its
own prelude,
cc #18424
45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
// Copyright 2012 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.
|
|
|
|
#![feature(unsafe_destructor)]
|
|
|
|
use std::cell::Cell;
|
|
|
|
#[deriving(Show)]
|
|
struct r<'a> {
|
|
i: &'a Cell<int>,
|
|
}
|
|
|
|
#[unsafe_destructor]
|
|
impl<'a> Drop for r<'a> {
|
|
fn drop(&mut self) {
|
|
unsafe {
|
|
self.i.set(self.i.get() + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn f<T>(_i: Vec<T> , _j: Vec<T> ) {
|
|
}
|
|
|
|
fn clone<T: Clone>(t: &T) -> T { t.clone() }
|
|
|
|
fn main() {
|
|
let i1 = &Cell::new(0);
|
|
let i2 = &Cell::new(1);
|
|
let r1 = vec!(box r { i: i1 });
|
|
let r2 = vec!(box r { i: i2 });
|
|
f(clone(&r1), clone(&r2));
|
|
//~^ ERROR the trait `core::clone::Clone` is not implemented for the type
|
|
//~^^ ERROR the trait `core::clone::Clone` is not implemented for the type
|
|
println!("{}", (r2, i1.get()));
|
|
println!("{}", (r1, i2.get()));
|
|
}
|