error::match_error!
[−]
[src]
macro_rules! match_error { ($m:expr, $i1:pat => $t1:ty: $e1:expr) => {{ let tmp = $m; match tmp.downcast::<$t1>() { Some($i1) => Some($e1), None => None, } }}; ($m:expr, $i1:pat => $t1:ty: $e1:expr, $($i:pat => $t:ty: $e:expr),+) => {{ let tmp = $m; match tmp.downcast::<$t1>() { Some($i1) => Some($e1), None => match_error!(tmp, $($i: $t => $e),*), } }}; }