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// 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.
// exec-env:RUST_LOG=info
// pretty-expanded FIXME #23616
#![allow(unknown_features)]
#![feature(box_syntax, old_io, rustc_private, std_misc)]
#[macro_use]
extern crate log;
use log::{set_logger, Logger, LogRecord};
use std::sync::mpsc::channel;
use std::fmt;
use std::old_io::{ChanReader, ChanWriter, Reader, Writer};
use std::thread;
struct MyWriter(ChanWriter);
impl Logger for MyWriter {
fn log(&mut self, record: &LogRecord) {
let MyWriter(ref mut inner) = *self;
write!(inner, "{}", record.args);
}
}
fn main() {
let (tx, rx) = channel();
let (mut r, w) = (ChanReader::new(rx), ChanWriter::new(tx));
let _t = thread::scoped(move|| {
set_logger(box MyWriter(w) as Box<Logger+Send>);
debug!("debug");
info!("info");
});
let s = r.read_to_string().unwrap();
assert!(s.contains("info"));
assert!(!s.contains("debug"));
}
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