static S tok_reverseFunctionArguments(S s) {
  ret join(tok_reverseFunctionArguments(javaTok(s));
}

static LS tok_reverseFunctionArguments(LS tok) {
  LS tok = first(findFullFunctionDefs(tok, true));
  S name = tok_methodName(tok);
  bool isVoid = tok_staticFunctionAlwaysReturnsVoid(tok, name);
  IntRange r = tok_findArgs(tok);
  LS args = tok_parseArgsList(tok); // TODO: type params?
  LPair<S> typesAndNames = tok_typesAndNamesOfParams(subList(tok, r));
  replaceSublist(tok, shrinkIntRange(r, 1), ll(joinWithComma(reversed(args))));
  replaceSublist(tok, cloneList(tok_methodBody(tok)), ll(
    " {\n  "
      + (isVoid ? "" : "ret ") + name + "(" + joinWithComma(secondOfPairs(typesAndNames)) + ");"
        + "\n}\n"));
  ret tok;
}