Macro hexodsp::build::make_node_constructor

macro_rules! make_node_constructor {
    ($s1: ident => $v1: ident,
        $($str: ident => $variant: ident
            UIType:: $gui_type: ident
            UICategory:: $ui_cat: ident
            $(($in_idx: literal $para: ident
               $n_fun: ident $d_fun: ident $r_fun: ident $f_fun: ident
               $steps: ident $min: expr, $max: expr, $def: expr))*
            $({$in_at_idx: literal $at_idx: literal $atom: ident
               $at_fun: ident ($at_init: expr) $at_ui: ident $fa_fun: ident
               $amin: literal $amax: literal})*
            $([$out_idx: literal $out: ident])*
            ,)+
    ) => { ... };
}