size_t call_pos = call_first->token_pos;
size_t call_len = (call_last->token_pos + call_last->token_len) - call_pos;
size_t line_pos = call_first->line_pos;
size_t call_pos = call_first->token_pos;
size_t call_len = (call_last->token_pos + call_last->token_len) - call_pos;
size_t line_pos = call_first->line_pos;