_t = __t2351;
_t = __t2352;
	public final void tooltip_expr(AST _t) throws RecognitionException {				AST tooltip_expr_AST_in = (_t == ASTNULL) ? null : (AST)_t;				AST __t2351 = _t;		AST tmp998_AST_in = (AST)_t;		match(_t,TOOLTIP);		_t = _t.getFirstChild();		{		if (_t==null) _t=ASTNULL;		switch ( _t.getType()) {		case VALUE:		{			valueexpression(_t);			_t = _retTree;			break;		}		case LEXDATE:		case NUMBER:		case QSTRING:		case BIGENDIAN:		case EXCLUSIVELOCK:		case FALSE_KW:		case FINDCASESENSITIVE:		case FINDGLOBAL:		case FINDNEXTOCCURRENCE:		case FINDPREVOCCURRENCE:		case FINDSELECT:		case FINDWRAPAROUND:		case HOSTBYTEORDER:		case LITTLEENDIAN:		case NO:		case NOLOCK:		case NOWAIT:		case NULL_KW:		case READAVAILABLE:		case READEXACTNUM:		case SEARCHSELF:		case SEARCHTARGET:		case SHARELOCK:		case TRUE_KW:		case WINDOWDELAYEDMINIMIZE:		case WINDOWMAXIMIZED:		case WINDOWMINIMIZED:		case WINDOWNORMAL:		case YES:		case UNKNOWNVALUE:		case FUNCTIONCALLTYPE:		case GETATTRCALLTYPE:		case PROCEDURECALLTYPE:		case SAXCOMPLETE:		case SAXPARSERERROR:		case SAXRUNNING:		case SAXUNINITIALIZED:		case SETATTRCALLTYPE:		case ROWUNMODIFIED:		case ROWDELETED:		case ROWMODIFIED:		case ROWCREATED:		{			constant(_t);			_t = _retTree;			break;		}		default:		{			throw new NoViableAltException(_t);		}		}		}		_t = __t2351;		_t = _t.getNextSibling();		_retTree = _t;	}