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Replace unwrap() with map()

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Matthias Beyer 2016-08-04 14:09:06 +02:00
parent b6ce57418e
commit 97fde8cc1b
1 changed files with 6 additions and 4 deletions
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10
libimagerror/src/trace.rs
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@ -62,10 +62,12 @@ pub fn trace_error_dbg(e: &Error) {
/// processed.
fn print_trace_maxdepth(idx: u64, e: &Error, max: u64) -> Option<&Error> {
if e.cause().is_some() && idx > 0 {
match print_trace_maxdepth(idx - 1, e.cause().unwrap(), max) {
None => write!(stderr(), "\n").ok(),
Some(_) => write!(stderr(), " -- caused:\n").ok(),
};
e.cause().map(|cause| {
match print_trace_maxdepth(idx - 1, cause, max) {
None => write!(stderr(), "\n").ok(),
Some(_) => write!(stderr(), " -- caused:\n").ok(),
};
});
} else {
write!(stderr(), "\n").ok();
}