Macro jrsonnet_evaluator::parse_args

macro_rules! parse_args {
    ($ctx: expr, $fn_name: expr, $args: expr, $total_args: expr, [
		$($id: expr, $name: ident $(: [$($p: path)|+] $(!! $a: path)?)?, $nt: expr);+ $(;)?
	], $handler:block) => { ... };
}