rust/src/test/run-pass/log-knows-the-names-of-variants-in-std.rs
Alex Crichton 42aed6bde2 std: Remove format_strbuf!()
This was only ever a transitionary macro.
2014-05-28 08:35:41 -07:00

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936 B
Rust

// Copyright 2012-2014 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.
extern crate debug;
#[deriving(Clone)]
enum foo {
a(uint),
b(String),
}
fn check_log<T>(exp: String, v: T) {
assert_eq!(exp, format!("{:?}", v));
}
pub fn main() {
let mut x = Some(a(22u));
let exp = "Some(a(22u))".to_string();
let act = format!("{:?}", x);
assert_eq!(act, exp);
check_log(exp, x);
x = None;
let exp = "None".to_string();
let act = format!("{:?}", x);
assert_eq!(act, exp);
check_log(exp, x);
}