AST tmp535_AST_in = (AST)_t;
AST tmp534_AST_in = (AST)_t;
	public final void parameter_dataset_options(AST _t) throws RecognitionException {				AST parameter_dataset_options_AST_in = (_t == ASTNULL) ? null : (AST)_t;				{		if (_t==null) _t=ASTNULL;		switch ( _t.getType()) {		case APPEND:		{			AST tmp532_AST_in = (AST)_t;			match(_t,APPEND);			_t = _t.getNextSibling();			break;		}		case 3:		case BYPOINTER:		case BYVARIANTPOINTER:		case BYVALUE:		case BYREFERENCE:		case BIND:		{			break;		}		default:		{			throw new NoViableAltException(_t);		}		}		}		{		if (_t==null) _t=ASTNULL;		switch ( _t.getType()) {		case BYVALUE:		{			AST tmp533_AST_in = (AST)_t;			match(_t,BYVALUE);			_t = _t.getNextSibling();			break;		}		case BYREFERENCE:		{			AST tmp534_AST_in = (AST)_t;			match(_t,BYREFERENCE);			_t = _t.getNextSibling();			break;		}		case BIND:		{			AST tmp535_AST_in = (AST)_t;			match(_t,BIND);			_t = _t.getNextSibling();			break;		}		case 3:		case BYPOINTER:		case BYVARIANTPOINTER:		{			break;		}		default:		{			throw new NoViableAltException(_t);		}		}		}		_retTree = _t;	}