70 lines
1.9 KiB
Rust
70 lines
1.9 KiB
Rust
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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Custom panic hook with bug report link
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extern crate backtrace;
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use backtrace::Backtrace;
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use std::io::{self, Write};
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use std::panic::{self, PanicInfo};
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use std::thread;
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/// Set the panic hook
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pub fn set() {
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panic::set_hook(Box::new(panic_hook));
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}
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static ABOUT_PANIC: &str = "
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This is a bug. Please report it at:
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https://github.com/paritytech/parity/issues/new
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";
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fn panic_hook(info: &PanicInfo) {
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let location = info.location();
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let file = location.as_ref().map(|l| l.file()).unwrap_or("<unknown>");
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let line = location.as_ref().map(|l| l.line()).unwrap_or(0);
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let msg = match info.payload().downcast_ref::<&'static str>() {
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Some(s) => *s,
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None => match info.payload().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 thread = thread::current();
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let name = thread.name().unwrap_or("<unnamed>");
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let backtrace = Backtrace::new();
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let mut stderr = io::stderr();
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let _ = writeln!(stderr, "");
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let _ = writeln!(stderr, "====================");
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let _ = writeln!(stderr, "");
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let _ = writeln!(stderr, "{:?}", backtrace);
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let _ = writeln!(stderr, "");
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let _ = writeln!(
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stderr,
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"Thread '{}' panicked at '{}', {}:{}",
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name, msg, file, line
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);
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let _ = writeln!(stderr, "{}", ABOUT_PANIC);
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}
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