{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"($dcx:expr,"}]}
    ($dcx:expr, $span:expr, $code:expr, $($message:tt)*) => ({
macro_rules! struct_span_code_err {
        $dcx.struct_span_err($span, format!($($message)*)).with_code($code)