lalrpop_lambda
macro_rules! λ { {. $body:ident} => { ... }; {. $body:expr} => { ... }; {$($arg:ident)* : $ty:ident . $body:ident} => { ... }; {$($arg:ident)* . $body:ident} => { ... }; {$($arg:ident)* : $ty:ident . $body:expr} => { ... }; {$($arg:ident)* . $body:expr} => { ... }; }
The all-powerful λ
let id = λ!{x.x};
Just a shortcut for abs!.
abs!