rust/src/test/run-pass/overloaded-index.rs
Alex Crichton ec7c800d2f Remove pretty-expanded from failing tests
This commit removes pretty-expanded from all tests that wind up calling panic!
one way or another now that its internals are unstable.
2015-04-08 17:21:34 -07:00

77 lines
1.6 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.
#![feature(core)]
use std::ops::{Index, IndexMut};
struct Foo {
x: isize,
y: isize,
}
impl Index<isize> for Foo {
type Output = isize;
fn index(&self, z: isize) -> &isize {
if z == 0 {
&self.x
} else {
&self.y
}
}
}
impl IndexMut<isize> for Foo {
fn index_mut(&mut self, z: isize) -> &mut isize {
if z == 0 {
&mut self.x
} else {
&mut self.y
}
}
}
trait Int {
fn get(self) -> isize;
fn get_from_ref(&self) -> isize;
fn inc(&mut self);
}
impl Int for isize {
fn get(self) -> isize { self }
fn get_from_ref(&self) -> isize { *self }
fn inc(&mut self) { *self += 1; }
}
fn main() {
let mut f = Foo {
x: 1,
y: 2,
};
assert_eq!(f[1], 2);
f[0] = 3;
assert_eq!(f[0], 3);
{
let p = &mut f[1];
*p = 4;
}
{
let p = &f[1];
assert_eq!(*p, 4);
}
// Test calling methods with `&mut self`, `self, and `&self` receivers:
f[1].inc();
assert_eq!(f[1].get(), 5);
assert_eq!(f[1].get_from_ref(), 5);
}