{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"if"}]}
    if !def_span.is_dummy() && !psess.source_map().is_imported(def_span) {
    err.span_label(span, label);
        err.span_label(psess.source_map().guess_head_span(def_span), "when calling this macro");