b53454e2e4
This commit moves reflection (as well as the {:?} format modifier) to a new
libdebug crate, all of which is marked experimental.
This is a breaking change because it now requires the debug crate to be
explicitly linked if the :? format qualifier is used. This means that any code
using this feature will have to add `extern crate debug;` to the top of the
crate. Any code relying on reflection will also need to do this.
Closes #12019
[breaking-change]
35 lines
1.1 KiB
Rust
35 lines
1.1 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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extern crate debug;
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pub fn main() {
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let x = vec!(1, 2, 3);
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let mut y = 0;
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for i in x.iter() { println!("{:?}", *i); y += *i; }
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println!("{:?}", y);
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assert_eq!(y, 6);
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let s = "hello there".to_string();
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let mut i: int = 0;
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for c in s.as_slice().bytes() {
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if i == 0 { assert!((c == 'h' as u8)); }
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if i == 1 { assert!((c == 'e' as u8)); }
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if i == 2 { assert!((c == 'l' as u8)); }
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if i == 3 { assert!((c == 'l' as u8)); }
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if i == 4 { assert!((c == 'o' as u8)); }
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// ...
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i += 1;
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println!("{:?}", i);
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println!("{:?}", c);
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}
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assert_eq!(i, 11);
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}
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