3 macro_rules! overly_complicated {
4 ($fnname:ident, $arg:ident, $ty:ty, $body:block, $val:expr, $pat:pat, $res:path) =>
6 fn $fnname($arg: $ty) -> Option<$ty> $body
18 (path, <$type:ty as $trait:path>::$name:ident) => {
19 <$type as $trait>::$name
22 (ty, <$type:ty as $trait:ty>::$name:ident) => {
23 <$type as $trait>::$name
28 let _: qpath!(path, <str as ToOwned>::Owned);
29 let _: qpath!(ty, <str as ToOwned>::Owned);
31 assert!(overly_complicated!(f, x, Option<usize>, { return Some(x); },
32 Some(8), Some(y), y) == 8)