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use std::panic;
use std::panic::PanicInfo;
pub struct ErrorInfo {
pub message: Option<String>,
pub location: Option<ErrorLocation>,
}
pub struct ErrorLocation {
pub file: String,
pub line: u32,
}
pub fn set<F: 'static + Fn(ErrorInfo) + Send + Sync>(f: F) {
panic::set_hook(Box::new(move |info: &PanicInfo| {
let mut message = None;
if let Some(s) = info.payload().downcast_ref::<&str>() {
message = Some((*s).to_owned());
} else if let Some(s) = info.payload().downcast_ref::<String>() {
message = Some(s.clone());
}
let mut location = None;
if let Some(loc) = info.location() {
let file = loc.file();
let line = loc.line();
location = Some(ErrorLocation {
file: file.to_owned(),
line: line,
});
}
f(ErrorInfo {
message: message,
location: location,
});
}));
}