rust/src/librustuv/macros.rs
Alex Crichton 6cad8f4f14 Test fixes and rebase conflicts
* vec::raw::to_ptr is gone
* Pausible => Pausable
* Removing @
* Calling the main task "<main>"
* Removing unused imports
* Removing unused mut
* Bringing some libextra tests up to date
* Allowing compiletest to work at stage0
* Fixing the bootstrap-from-c rmake tests
* assert => rtassert in a few cases
* printing to stderr instead of stdout in fail!()
2013-12-25 23:10:46 -08:00

47 lines
1.3 KiB
Rust

// Copyright 2013 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.
#[macro_escape];
use std::fmt;
macro_rules! uverrln (
($($arg:tt)*) => ( {
format_args!(::macros::dumb_println, $($arg)*)
} )
)
// Some basic logging. Enabled by passing `--cfg uvdebug` to the libstd build.
macro_rules! uvdebug (
($($arg:tt)*) => ( {
if cfg!(uvdebug) {
uverrln!($($arg)*)
}
})
)
pub fn dumb_println(args: &fmt::Arguments) {
use std::io;
use std::libc;
struct Stderr;
impl io::Writer for Stderr {
fn write(&mut self, data: &[u8]) {
unsafe {
libc::write(libc::STDERR_FILENO,
data.as_ptr() as *libc::c_void,
data.len() as libc::size_t);
}
}
}
let mut w = Stderr;
fmt::writeln(&mut w as &mut io::Writer, args);
}