1f70acbf4c
This gets rid of the 'experimental' level, removes the non-staged_api case (i.e. stability levels for out-of-tree crates), and lets the staged_api attributes use 'unstable' and 'deprecated' lints. This makes the transition period to the full feature staging design a bit nicer.
77 lines
2.4 KiB
Rust
77 lines
2.4 KiB
Rust
// Copyright 2014 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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#![unstable]
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use prelude::v1::*;
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use any::Any;
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use cell::RefCell;
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use io::IoResult;
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use rt::{backtrace, unwind};
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use rt::util::{Stderr, Stdio};
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use thread::Thread;
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// Defined in this module instead of io::stdio so that the unwinding
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thread_local! {
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pub static LOCAL_STDERR: RefCell<Option<Box<Writer + Send>>> = {
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RefCell::new(None)
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}
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}
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impl Writer for Stdio {
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fn write(&mut self, bytes: &[u8]) -> IoResult<()> {
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let _ = self.write_bytes(bytes);
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Ok(())
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}
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}
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pub fn on_fail(obj: &(Any+Send), file: &'static str, line: uint) {
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let msg = match obj.downcast_ref::<&'static str>() {
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Some(s) => *s,
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None => match obj.downcast_ref::<String>() {
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Some(s) => &s[],
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None => "Box<Any>",
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}
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};
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let mut err = Stderr;
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let thread = Thread::current();
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let name = thread.name().unwrap_or("<unnamed>");
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let prev = LOCAL_STDERR.with(|s| s.borrow_mut().take());
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match prev {
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Some(mut stderr) => {
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// FIXME: what to do when the thread printing panics?
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let _ = writeln!(stderr,
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"thread '{}' panicked at '{}', {}:{}\n",
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name, msg, file, line);
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if backtrace::log_enabled() {
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let _ = backtrace::write(&mut *stderr);
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}
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let mut s = Some(stderr);
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LOCAL_STDERR.with(|slot| {
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*slot.borrow_mut() = s.take();
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});
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}
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None => {
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let _ = writeln!(&mut err, "thread '{}' panicked at '{}', {}:{}",
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name, msg, file, line);
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if backtrace::log_enabled() {
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let _ = backtrace::write(&mut err);
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}
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}
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}
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// If this is a double panic, make sure that we printed a backtrace
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// for this panic.
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if unwind::panicking() && !backtrace::log_enabled() {
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let _ = backtrace::write(&mut err);
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}
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}
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