svoid tok_defaultArguments(LS tok) {
  int i;
  while ((i = jfind(tok, "<id> default")) >= 0) {
    int iOpening = lastIndexOf(tok, i, "(");
    int iClosing = indexOf(tok, i, ")");
    int iName = iOpening-2;
    S name = assertIdentifier(get(tok, iName));
    // TODO: leftScanTypeArgs(tok, iName);
    leftScanModifiers(tok, iName);
  }
}