rust/src/test/run-pass/vec-matching-autoslice.rs
Niko Matsakis 9e3d0b002a librustc: Remove the fallback to int from typechecking.
This breaks a fair amount of code. The typical patterns are:

* `for _ in range(0, 10)`: change to `for _ in range(0u, 10)`;

* `println!("{}", 3)`: change to `println!("{}", 3i)`;

* `[1, 2, 3].len()`: change to `[1i, 2, 3].len()`.

RFC #30. Closes #6023.

[breaking-change]
2014-06-24 17:18:48 -07:00

31 lines
909 B
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.
pub fn main() {
let x = [1i, 2, 3];
match x {
[2, _, _] => fail!(),
[1, a, b] => {
assert!([a, b] == [2, 3]);
}
[_, _, _] => fail!(),
}
let y = ([(1i, true), (2i, false)], 0.5f64);
match y {
([(1, a), (b, false)], _) => {
assert_eq!(a, true);
assert_eq!(b, 2);
}
([_, _], 0.5) => fail!(),
([_, _], _) => fail!(),
}
}