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toolkit/bootstrap/host/
panic.rs

1use std::sync::Once;
2
3static PANIC_HOOK_INIT: Once = Once::new();
4
5pub fn init_panic_tracing() {
6    PANIC_HOOK_INIT.call_once(|| {
7        std::panic::set_hook(Box::new(|panic_info| {
8            let backtrace = std::backtrace::Backtrace::force_capture();
9            let location = panic_info.location().map_or_else(
10                || "unknown location".to_owned(),
11                |loc| format!("{}:{}:{}", loc.file(), loc.line(), loc.column()),
12            );
13            let payload = if let Some(s) = panic_info.payload().downcast_ref::<&str>() {
14                (*s).to_owned()
15            } else if let Some(s) = panic_info.payload().downcast_ref::<String>() {
16                s.clone()
17            } else {
18                "non-string panic payload".to_owned()
19            };
20
21            tracing::error!(%location, %payload, %backtrace, "PANIC");
22        }));
23
24        tracing::debug!("tracing of panic is initialized");
25    });
26}