Macro reax::computed_move

macro_rules! computed_move {
    { output! $n:ident = $e:expr; context! $c:ident$(: $ct:ty)?; $($x:tt)* } => { ... };
    { output! $n:ident = $e:expr; $($x:tt)* } => { ... };
    { context! $c:ident$(: $ct:ty)?; $($x:tt)* } => { ... };
    { $($x:tt)* } => { ... };
}

Like computed! but captures by move rather than by reference.