_loop1933:
_loop1934:
	public final void function_params(AST _t) throws RecognitionException {				AST function_params_AST_in = (_t == ASTNULL) ? null : (AST)_t;				AST __t1930 = _t;		AST tmp872_AST_in = (AST)_t;		match(_t,Parameter_list);		_t = _t.getFirstChild();		AST tmp873_AST_in = (AST)_t;		match(_t,LEFTPAREN);		_t = _t.getNextSibling();		{		if (_t==null) _t=ASTNULL;		switch ( _t.getType()) {		case BUFFER:		case INPUT:		case INPUTOUTPUT:		case OUTPUT:		{			function_param(_t);			_t = _retTree;			break;		}		case COMMA:		case RIGHTPAREN:		{			break;		}		default:		{			throw new NoViableAltException(_t);		}		}		}		{		_loop1933:		do {			if (_t==null) _t=ASTNULL;			if ((_t.getType()==COMMA)) {				AST tmp874_AST_in = (AST)_t;				match(_t,COMMA);				_t = _t.getNextSibling();				function_param(_t);				_t = _retTree;			}			else {				break _loop1933;			}					} while (true);		}		AST tmp875_AST_in = (AST)_t;		match(_t,RIGHTPAREN);		_t = _t.getNextSibling();		_t = __t1930;		_t = _t.getNextSibling();		_retTree = _t;	}